make -C tools/testing/selftests TARGETS=net TEST_PROGS=pmtu.sh TEST_GEN_PRROGS="" run_tests
make: Entering directory '/home/virtme/testing-3/tools/testing/selftests'
make[1]: Entering directory '/home/virtme/testing-3/tools/testing/selftests/net'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing-3/tools/testing/selftests/net'
make[1]: Entering directory '/home/virtme/testing-3/tools/testing/selftests/net'
TAP version 13
1..1
# timeout set to 6000
# selftests: net: pmtu.sh
# TEST: ipv4: PMTU exceptions [ OK ]
# TEST: ipv4: PMTU exceptions - nexthop objects [ OK ]
# TEST: ipv6: PMTU exceptions [ OK ]
# TEST: ipv6: PMTU exceptions - nexthop objects [ OK ]
# TEST: ICMPv4 with DSCP and ECN: PMTU exceptions [ OK ]
[ 131.715810][ T11] ==================================================================
[ 131.716249][ T11] BUG: KASAN: slab-use-after-free in __mutex_lock+0x922/0xb10
[ 131.716652][ T11] Read of size 8 at addr ffff8880380fd068 by task kworker/u8:0/11
[ 131.717068][ T11]
[ 131.717188][ T11] CPU: 2 PID: 11 Comm: kworker/u8:0 Not tainted 6.8.0-rc2-virtme #1
[ 131.717613][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 131.718218][ T11] Workqueue: netns cleanup_net
[ 131.718464][ T11] Call Trace:
[ 131.718660][ T11]
[ 131.718822][ T11] dump_stack_lvl+0x64/0xb0
[ 131.719057][ T11] print_address_description.constprop.0+0x2c/0x3b0
[ 131.719391][ T11] ? __mutex_lock+0x922/0xb10
[ 131.719644][ T11] print_report+0xb5/0x270
[ 131.719876][ T11] ? kasan_addr_to_slab+0x4e/0x90
[ 131.720129][ T11] kasan_report+0xbe/0xf0
[ 131.720348][ T11] ? __mutex_lock+0x922/0xb10
[ 131.720584][ T11] __mutex_lock+0x922/0xb10
[ 131.720856][ T11] ? __lock_release+0x40f/0x880
[ 131.721103][ T11] ? __pfx___lock_release+0x10/0x10
[ 131.721360][ T11] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 131.721653][ T11] ? __pfx___mutex_lock+0x10/0x10
[ 131.721905][ T11] ? __pfx___up_read+0x10/0x10
[ 131.722145][ T11] ? refcount_dec_not_one+0x6b/0x180
[ 131.722412][ T11] ? tc_setup_cb_destroy+0x22b/0x300
[ 131.722685][ T11] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 131.722972][ T11] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 131.723261][ T11] refcount_dec_and_mutex_lock+0x35/0x90
[ 131.723541][ T11] __tcf_action_put+0x3d/0xf0
[ 131.723777][ T11] tcf_action_destroy+0x43/0x130
[ 131.724025][ T11] tcf_exts_destroy+0x3c/0xb0
[ 131.724260][ T11] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 131.724575][ T11] __fl_put+0x21a/0x290 [cls_flower]
[ 131.724870][ T11] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 131.725168][ T11] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 131.725474][ T11] __fl_delete+0x4e4/0x750 [cls_flower]
[ 131.725758][ T11] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 131.726063][ T11] ? __lock_release+0x40f/0x880
[ 131.726307][ T11] ? __mutex_lock+0x26e/0xb10
[ 131.726544][ T11] fl_destroy+0x1ae/0x300 [cls_flower]
[ 131.726822][ T11] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 131.727126][ T11] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 131.727427][ T11] tcf_proto_destroy+0x6e/0x2e0
[ 131.727672][ T11] tcf_chain_flush+0x1e0/0x320
[ 131.727911][ T11] __tcf_block_put+0x113/0x270
[ 131.728151][ T11] tcf_block_put+0xaf/0xf0
[ 131.728375][ T11] ? __pfx_tcf_block_put+0x10/0x10
[ 131.728632][ T11] ? prio_reset+0x88/0xe0 [sch_prio]
[ 131.728932][ T11] prio_destroy+0x4d/0x120 [sch_prio]
[ 131.729203][ T11] __qdisc_destroy+0xee/0x340
[ 131.729446][ T11] dev_shutdown+0x164/0x350
[ 131.729673][ T11] unregister_netdevice_many_notify+0x4fe/0x1180
[ 131.729990][ T11] ? mutex_is_locked+0x17/0x50
[ 131.730230][ T11] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 131.730564][ T11] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 131.730883][ T11] default_device_exit_batch+0x234/0x2d0
[ 131.731162][ T11] ? __pfx_default_device_exit_batch+0x10/0x10
[ 131.731469][ T11] ? ops_exit_list+0xb4/0x170
[ 131.731706][ T11] cleanup_net+0x4f3/0xb60
[ 131.731929][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 131.732210][ T11] ? __pfx_cleanup_net+0x10/0x10
[ 131.732458][ T11] ? lock_acquire+0x1c1/0x220
[ 131.732701][ T11] ? process_one_work+0x714/0x1310
[ 131.732974][ T11] process_one_work+0x78c/0x1310
[ 131.733223][ T11] ? hlock_class+0x4e/0x130
[ 131.733448][ T11] ? __pfx_process_one_work+0x10/0x10
[ 131.733719][ T11] ? assign_work+0x16c/0x240
[ 131.733950][ T11] worker_thread+0x73d/0x1010
[ 131.734189][ T11] ? __pfx_worker_thread+0x10/0x10
[ 131.734444][ T11] kthread+0x28f/0x360
[ 131.734648][ T11] ? __pfx_kthread+0x10/0x10
[ 131.734884][ T11] ret_from_fork+0x31/0x70
[ 131.735108][ T11] ? __pfx_kthread+0x10/0x10
[ 131.735339][ T11] ret_from_fork_asm+0x1b/0x30
[ 131.735587][ T11]
[ 131.735741][ T11]
[ 131.735858][ T11] Allocated by task 912:
[ 131.736077][ T11] kasan_save_stack+0x24/0x50
[ 131.736315][ T11] kasan_save_track+0x14/0x30
[ 131.736548][ T11] __kasan_kmalloc+0x7f/0x90
[ 131.736820][ T11] tc_action_net_init+0x4d/0x250
[ 131.737071][ T11] ops_init+0x9b/0x560
[ 131.737284][ T11] register_pernet_operations+0x2db/0x710
[ 131.737568][ T11] register_pernet_subsys+0x29/0x50
[ 131.737831][ T11] tcf_register_action+0xa3/0x600
[ 131.738083][ T11] do_one_initcall+0xc8/0x3f0
[ 131.738319][ T11] do_init_module+0x233/0x740
[ 131.738555][ T11] load_module+0x16b5/0x2350
[ 131.738798][ T11] init_module_from_file+0xd2/0x130
[ 131.739056][ T11] idempotent_init_module+0x33a/0x610
[ 131.739322][ T11] __x64_sys_finit_module+0xbe/0x130
[ 131.739586][ T11] do_syscall_64+0xc9/0x1e0
[ 131.739818][ T11] entry_SYSCALL_64_after_hwframe+0x6f/0x77
[ 131.740116][ T11]
[ 131.740241][ T11] Freed by task 11:
[ 131.740436][ T11] kasan_save_stack+0x24/0x50
[ 131.740687][ T11] kasan_save_track+0x14/0x30
[ 131.740944][ T11] kasan_save_free_info+0x3f/0x60
[ 131.741196][ T11] __kasan_slab_free+0xfc/0x1c0
[ 131.741438][ T11] kfree+0xf2/0x2d0
[ 131.741631][ T11] tc_action_net_exit_batch_rtnl+0x292/0x4e0
[ 131.741930][ T11] cleanup_net+0x496/0xb60
[ 131.742154][ T11] process_one_work+0x78c/0x1310
[ 131.742401][ T11] worker_thread+0x73d/0x1010
[ 131.742633][ T11] kthread+0x28f/0x360
[ 131.742839][ T11] ret_from_fork+0x31/0x70
[ 131.743060][ T11] ret_from_fork_asm+0x1b/0x30
[ 131.743301][ T11]
[ 131.743421][ T11] The buggy address belongs to the object at ffff8880380fd000
[ 131.743421][ T11] which belongs to the cache kmalloc-512 of size 512
[ 131.744106][ T11] The buggy address is located 104 bytes inside of
[ 131.744106][ T11] freed 512-byte region [ffff8880380fd000, ffff8880380fd200)
[ 131.744804][ T11]
[ 131.744924][ T11] The buggy address belongs to the physical page:
[ 131.745242][ T11] page:ffffea0000e03e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff8880380f9a00 pfn:0x380f8
[ 131.745803][ T11] head:ffffea0000e03e00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 131.746242][ T11] flags: 0x80000000000a40(workingset|slab|head|node=0|zone=1)
[ 131.746611][ T11] page_type: 0xffffffff()
[ 131.746849][ T11] raw: 0080000000000a40 ffff8880010431c0 ffffea0000188810 ffffea000009d610
[ 131.747273][ T11] raw: ffff8880380f9a00 0000000000150014 00000001ffffffff 0000000000000000
[ 131.747694][ T11] page dumped because: kasan: bad access detected
[ 131.748010][ T11]
[ 131.748130][ T11] Memory state around the buggy address:
[ 131.748409][ T11] ffff8880380fcf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 131.748831][ T11] ffff8880380fcf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 131.749228][ T11] >ffff8880380fd000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 131.749625][ T11] ^
[ 131.749994][ T11] ffff8880380fd080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 131.750390][ T11] ffff8880380fd100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 131.750812][ T11] ==================================================================
[ 131.751249][ T11] Disabling lock debugging due to kernel taint
[ 156.563631][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 26s! [kworker/u8:0:11]
[ 156.564079][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 156.564501][ C2] irq event stamp: 753065
[ 156.564718][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 156.565185][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 156.565650][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 156.566115][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 156.566574][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B 6.8.0-rc2-virtme #1
[ 156.567042][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 156.567648][ C2] Workqueue: netns cleanup_net
[ 156.567894][ C2] RIP: 0010:kasan_report+0x16/0xf0
[ 156.568156][ C2] Code: 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 <0f> 01 ca 65 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 85 c0 0f
[ 156.569117][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000282
[ 156.569420][ C2] RAX: 00000000000000fb RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 156.569814][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 156.570209][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 156.570618][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 156.571014][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 156.571409][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 156.571851][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 156.572179][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 156.572575][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 156.572971][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 156.573364][ C2] PKRU: 55555554
[ 156.573544][ C2] Call Trace:
[ 156.573714][ C2]
[ 156.573862][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 156.574124][ C2] ? __run_hrtimer+0x1c0/0x710
[ 156.574366][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 156.574638][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 156.574907][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 156.575195][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 156.575459][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 156.575762][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 156.576025][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 156.576332][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 156.576624][ C2]
[ 156.576774][ C2]
[ 156.576925][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 156.577240][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 156.577533][ C2] ? kasan_report+0x16/0xf0
[ 156.577764][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 156.578048][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 156.578356][ C2] ? __pfx___schedule+0x10/0x10
[ 156.578603][ C2] do_raw_spin_lock+0x1ec/0x270
[ 156.578851][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 156.579122][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 156.579403][ C2] ? lock_acquire+0x1c1/0x220
[ 156.579640][ C2] ? __mutex_lock+0x33e/0xb10
[ 156.579875][ C2] ? __mutex_lock+0x811/0xb10
[ 156.580116][ C2] _raw_spin_lock+0x67/0x80
[ 156.580347][ C2] __mutex_lock+0x33e/0xb10
[ 156.580591][ C2] ? __lock_release+0x40f/0x880
[ 156.580836][ C2] ? __pfx___lock_release+0x10/0x10
[ 156.581101][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 156.581398][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 156.581651][ C2] ? __pfx___up_read+0x10/0x10
[ 156.581894][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 156.582160][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 156.582427][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 156.582717][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 156.583008][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 156.583292][ C2] __tcf_action_put+0x3d/0xf0
[ 156.583531][ C2] tcf_action_destroy+0x43/0x130
[ 156.583780][ C2] tcf_exts_destroy+0x3c/0xb0
[ 156.584018][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 156.584334][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 156.584603][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 156.584901][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 156.585191][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 156.585477][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 156.585784][ C2] ? __lock_release+0x40f/0x880
[ 156.586030][ C2] ? __mutex_lock+0x26e/0xb10
[ 156.586267][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 156.586548][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 156.586852][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 156.587154][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 156.587401][ C2] tcf_chain_flush+0x1e0/0x320
[ 156.587644][ C2] __tcf_block_put+0x113/0x270
[ 156.587885][ C2] tcf_block_put+0xaf/0xf0
[ 156.588111][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 156.588369][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 156.588637][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 156.588911][ C2] __qdisc_destroy+0xee/0x340
[ 156.589148][ C2] dev_shutdown+0x164/0x350
[ 156.589379][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 156.589697][ C2] ? mutex_is_locked+0x17/0x50
[ 156.589938][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 156.590272][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 156.590602][ C2] default_device_exit_batch+0x234/0x2d0
[ 156.590884][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 156.591192][ C2] ? ops_exit_list+0xb4/0x170
[ 156.591429][ C2] cleanup_net+0x4f3/0xb60
[ 156.591655][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 156.591936][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 156.592187][ C2] ? lock_acquire+0x1c1/0x220
[ 156.592423][ C2] ? process_one_work+0x714/0x1310
[ 156.592682][ C2] process_one_work+0x78c/0x1310
[ 156.592934][ C2] ? hlock_class+0x4e/0x130
[ 156.593163][ C2] ? __pfx_process_one_work+0x10/0x10
[ 156.593435][ C2] ? assign_work+0x16c/0x240
[ 156.593665][ C2] worker_thread+0x73d/0x1010
[ 156.593905][ C2] ? __pfx_worker_thread+0x10/0x10
[ 156.594162][ C2] kthread+0x28f/0x360
[ 156.594369][ C2] ? __pfx_kthread+0x10/0x10
[ 156.594602][ C2] ret_from_fork+0x31/0x70
[ 156.594829][ C2] ? __pfx_kthread+0x10/0x10
[ 156.595058][ C2] ret_from_fork_asm+0x1b/0x30
[ 156.595308][ C2]
[ 157.752937][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 157.753297][ C2] rcu: 2-....: (25967 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=6403
[ 157.753815][ C2] rcu: (t=26000 jiffies g=119533 q=6068 ncpus=4)
[ 157.754136][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 157.754604][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 157.755206][ C2] Workqueue: netns cleanup_net
[ 157.755451][ C2] RIP: 0010:kasan_report+0xd2/0xf0
[ 157.755709][ C2] Code: 24 28 4c 89 6c 24 30 e8 7c f5 ff ff 48 8d 7c 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd ff ff ff 34 24 9d <48> 83 c4 70 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc
[ 157.756663][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 157.756968][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb35b0
[ 157.757360][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 157.757752][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 157.758148][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000000
[ 157.758539][ C2] R13: ffffffffaeeb35b0 R14: 0000000000000004 R15: ffff888001c02640
[ 157.758930][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 157.759370][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 157.759696][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 157.760093][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 157.760497][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 157.760888][ C2] PKRU: 55555554
[ 157.761067][ C2] Call Trace:
[ 157.761236][ C2]
[ 157.761381][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 157.761649][ C2] ? print_cpu_stall+0x263/0x6a0
[ 157.761896][ C2] ? check_cpu_stall+0x284/0x500
[ 157.762145][ C2] ? rcu_pending+0x92/0x360
[ 157.762372][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 157.762635][ C2] ? update_process_times+0xb9/0x110
[ 157.762900][ C2] ? tick_sched_handle+0x67/0x130
[ 157.763153][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 157.763433][ C2] ? __run_hrtimer+0x1c0/0x710
[ 157.763670][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 157.763976][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 157.764247][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 157.764528][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 157.764788][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 157.765089][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 157.765346][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 157.765649][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 157.765940][ C2]
[ 157.766089][ C2]
[ 157.766236][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 157.766545][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 157.766832][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 157.767117][ C2] ? kasan_report+0xd2/0xf0
[ 157.767348][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 157.767632][ C2] kasan_check_range+0x39/0x1c0
[ 157.767878][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 157.768157][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 157.768464][ C2] ? __pfx___schedule+0x10/0x10
[ 157.768710][ C2] do_raw_spin_lock+0x1ec/0x270
[ 157.768957][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 157.769225][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 157.769506][ C2] ? lock_acquire+0x1c1/0x220
[ 157.769740][ C2] ? __mutex_lock+0x33e/0xb10
[ 157.769976][ C2] ? __mutex_lock+0x811/0xb10
[ 157.770212][ C2] _raw_spin_lock+0x67/0x80
[ 157.770440][ C2] __mutex_lock+0x33e/0xb10
[ 157.770680][ C2] ? __lock_release+0x40f/0x880
[ 157.770925][ C2] ? __pfx___lock_release+0x10/0x10
[ 157.771183][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 157.771480][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 157.771731][ C2] ? __pfx___up_read+0x10/0x10
[ 157.771972][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 157.772234][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 157.772497][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 157.772784][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 157.773074][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 157.773355][ C2] __tcf_action_put+0x3d/0xf0
[ 157.773589][ C2] tcf_action_destroy+0x43/0x130
[ 157.773839][ C2] tcf_exts_destroy+0x3c/0xb0
[ 157.774075][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 157.774390][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 157.774658][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 157.774954][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 157.775243][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 157.775526][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 157.775831][ C2] ? __lock_release+0x40f/0x880
[ 157.776074][ C2] ? __mutex_lock+0x26e/0xb10
[ 157.776311][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 157.776588][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 157.776891][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 157.777191][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 157.777436][ C2] tcf_chain_flush+0x1e0/0x320
[ 157.777676][ C2] __tcf_block_put+0x113/0x270
[ 157.777913][ C2] tcf_block_put+0xaf/0xf0
[ 157.778139][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 157.778396][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 157.778662][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 157.778933][ C2] __qdisc_destroy+0xee/0x340
[ 157.779169][ C2] dev_shutdown+0x164/0x350
[ 157.779398][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 157.779714][ C2] ? mutex_is_locked+0x17/0x50
[ 157.779953][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 157.780286][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 157.780603][ C2] default_device_exit_batch+0x234/0x2d0
[ 157.780881][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 157.781187][ C2] ? ops_exit_list+0xb4/0x170
[ 157.781426][ C2] cleanup_net+0x4f3/0xb60
[ 157.781649][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 157.781928][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 157.782177][ C2] ? lock_acquire+0x1c1/0x220
[ 157.782419][ C2] ? process_one_work+0x714/0x1310
[ 157.782675][ C2] process_one_work+0x78c/0x1310
[ 157.782922][ C2] ? hlock_class+0x4e/0x130
[ 157.783149][ C2] ? __pfx_process_one_work+0x10/0x10
[ 157.783418][ C2] ? assign_work+0x16c/0x240
[ 157.783649][ C2] worker_thread+0x73d/0x1010
[ 157.783886][ C2] ? __pfx_worker_thread+0x10/0x10
[ 157.784141][ C2] kthread+0x28f/0x360
[ 157.784344][ C2] ? __pfx_kthread+0x10/0x10
[ 157.784575][ C2] ret_from_fork+0x31/0x70
[ 157.784797][ C2] ? __pfx_kthread+0x10/0x10
[ 157.785026][ C2] ret_from_fork_asm+0x1b/0x30
[ 157.785269][ C2]
[ 165.191957][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 33133 jiffies s: 4309 root: 0x4/.
[ 165.192596][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 165.192975][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 165.193259][ C2] NMI backtrace for cpu 2
[ 165.193264][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 165.193268][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 165.193271][ C2] Workqueue: netns cleanup_net
[ 165.193277][ C2] RIP: 0010:report_enabled+0x19/0x30
[ 165.193284][ C2] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 05 b9 a9 a4 05 48 d1 e8 83 e0 01 75 0d f0 48 0f ba 2d a7 a9 a4 05 00 <0f> 93 c0 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40
[ 165.193286][ C2] RSP: 0018:ffffc900000bf1e0 EFLAGS: 00000247
[ 165.193289][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb35b0
[ 165.193291][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 165.193292][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 165.193294][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 165.193295][ C2] R13: ffffffffaeeb35b0 R14: 0000000000000004 R15: ffff888001c02640
[ 165.193297][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 165.193298][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 165.193302][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 165.193303][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 165.193305][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 165.193306][ C2] PKRU: 55555554
[ 165.193307][ C2] Call Trace:
[ 165.193310][ C2]
[ 165.193313][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 165.193319][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 165.193323][ C2] ? nmi_handle+0x153/0x420
[ 165.193328][ C2] ? default_do_nmi+0x41/0x100
[ 165.193332][ C2] ? exc_nmi+0xf3/0x120
[ 165.193334][ C2] ? end_repeat_nmi+0xf/0x60
[ 165.193338][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 165.193343][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 165.193346][ C2] ? report_enabled+0x19/0x30
[ 165.193349][ C2] ? report_enabled+0x19/0x30
[ 165.193352][ C2] ? report_enabled+0x19/0x30
[ 165.193355][ C2]
[ 165.193355][ C2]
[ 165.193356][ C2] kasan_report+0x41/0xf0
[ 165.193361][ C2] kasan_check_range+0x39/0x1c0
[ 165.193366][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 165.193370][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 165.193374][ C2] ? __pfx___schedule+0x10/0x10
[ 165.193378][ C2] do_raw_spin_lock+0x1ec/0x270
[ 165.193384][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 165.193386][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 165.193390][ C2] ? lock_acquire+0x1c1/0x220
[ 165.193392][ C2] ? __mutex_lock+0x33e/0xb10
[ 165.193396][ C2] ? __mutex_lock+0x811/0xb10
[ 165.193399][ C2] _raw_spin_lock+0x67/0x80
[ 165.193402][ C2] __mutex_lock+0x33e/0xb10
[ 165.193405][ C2] ? __lock_release+0x40f/0x880
[ 165.193408][ C2] ? __pfx___lock_release+0x10/0x10
[ 165.193411][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 165.193416][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 165.193419][ C2] ? __pfx___up_read+0x10/0x10
[ 165.193423][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 165.193426][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 165.193430][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 165.193436][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 165.193439][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 165.193443][ C2] __tcf_action_put+0x3d/0xf0
[ 165.193447][ C2] tcf_action_destroy+0x43/0x130
[ 165.193451][ C2] tcf_exts_destroy+0x3c/0xb0
[ 165.193454][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 165.193464][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 165.193473][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 165.193481][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 165.193490][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 165.193499][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 165.193507][ C2] ? __lock_release+0x40f/0x880
[ 165.193511][ C2] ? __mutex_lock+0x26e/0xb10
[ 165.193515][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 165.193524][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 165.193532][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 165.193537][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 165.193541][ C2] tcf_chain_flush+0x1e0/0x320
[ 165.193545][ C2] __tcf_block_put+0x113/0x270
[ 165.193549][ C2] tcf_block_put+0xaf/0xf0
[ 165.193552][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 165.193555][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 165.193562][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 165.193568][ C2] __qdisc_destroy+0xee/0x340
[ 165.193572][ C2] dev_shutdown+0x164/0x350
[ 165.193576][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 165.193580][ C2] ? mutex_is_locked+0x17/0x50
[ 165.193583][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 165.193586][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 165.193590][ C2] default_device_exit_batch+0x234/0x2d0
[ 165.193593][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 165.193596][ C2] ? ops_exit_list+0xb4/0x170
[ 165.193599][ C2] cleanup_net+0x4f3/0xb60
[ 165.193602][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 165.193604][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 165.193607][ C2] ? lock_acquire+0x1c1/0x220
[ 165.193609][ C2] ? process_one_work+0x714/0x1310
[ 165.193614][ C2] process_one_work+0x78c/0x1310
[ 165.193618][ C2] ? hlock_class+0x4e/0x130
[ 165.193621][ C2] ? __pfx_process_one_work+0x10/0x10
[ 165.193626][ C2] ? assign_work+0x16c/0x240
[ 165.193629][ C2] worker_thread+0x73d/0x1010
[ 165.193635][ C2] ? __pfx_worker_thread+0x10/0x10
[ 165.193637][ C2] kthread+0x28f/0x360
[ 165.193640][ C2] ? __pfx_kthread+0x10/0x10
[ 165.193642][ C2] ret_from_fork+0x31/0x70
[ 165.193646][ C2] ? __pfx_kthread+0x10/0x10
[ 165.193648][ C2] ret_from_fork_asm+0x1b/0x30
[ 165.193656][ C2]
[ 192.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 60s! [kworker/u8:0:11]
[ 192.564080][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 192.564493][ C2] irq event stamp: 753065
[ 192.564710][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 192.565179][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 192.565648][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 192.566112][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 192.566571][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 192.567043][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 192.567652][ C2] Workqueue: netns cleanup_net
[ 192.567896][ C2] RIP: 0010:kasan_report+0xd2/0xf0
[ 192.568161][ C2] Code: 24 28 4c 89 6c 24 30 e8 7c f5 ff ff 48 8d 7c 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd ff ff ff 34 24 9d <48> 83 c4 70 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc
[ 192.569118][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000282
[ 192.569421][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb3f0c
[ 192.569814][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 192.570208][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 192.570610][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000000
[ 192.571003][ C2] R13: ffffffffaeeb3f0c R14: 0000000000000004 R15: ffff888001c02640
[ 192.571396][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 192.571834][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 192.572162][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 192.572557][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 192.572950][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 192.573344][ C2] PKRU: 55555554
[ 192.573524][ C2] Call Trace:
[ 192.573694][ C2]
[ 192.573840][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 192.574102][ C2] ? __run_hrtimer+0x1c0/0x710
[ 192.574344][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 192.574618][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 192.574888][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 192.575174][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 192.575437][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 192.575741][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 192.576002][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 192.576309][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 192.576599][ C2]
[ 192.576749][ C2]
[ 192.576897][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 192.577209][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 192.577503][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 192.577794][ C2] ? kasan_report+0xd2/0xf0
[ 192.578029][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 192.578311][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 192.578621][ C2] ? __pfx___schedule+0x10/0x10
[ 192.578867][ C2] do_raw_spin_lock+0x1ec/0x270
[ 192.579116][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 192.579384][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 192.579667][ C2] ? lock_acquire+0x1c1/0x220
[ 192.579901][ C2] ? __mutex_lock+0x33e/0xb10
[ 192.580140][ C2] ? __mutex_lock+0x811/0xb10
[ 192.580387][ C2] _raw_spin_lock+0x67/0x80
[ 192.580615][ C2] __mutex_lock+0x33e/0xb10
[ 192.580843][ C2] ? __lock_release+0x40f/0x880
[ 192.581090][ C2] ? __pfx___lock_release+0x10/0x10
[ 192.581351][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 192.581645][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 192.581898][ C2] ? __pfx___up_read+0x10/0x10
[ 192.582141][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 192.582408][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 192.582673][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 192.582961][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 192.583255][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 192.583537][ C2] __tcf_action_put+0x3d/0xf0
[ 192.583775][ C2] tcf_action_destroy+0x43/0x130
[ 192.584028][ C2] tcf_exts_destroy+0x3c/0xb0
[ 192.584266][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 192.584583][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 192.584854][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 192.585154][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 192.585446][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 192.585730][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 192.586041][ C2] ? __lock_release+0x40f/0x880
[ 192.586287][ C2] ? __mutex_lock+0x26e/0xb10
[ 192.586526][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 192.586805][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 192.587112][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 192.587415][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 192.587661][ C2] tcf_chain_flush+0x1e0/0x320
[ 192.587901][ C2] __tcf_block_put+0x113/0x270
[ 192.588146][ C2] tcf_block_put+0xaf/0xf0
[ 192.588371][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 192.588630][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 192.588899][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 192.589173][ C2] __qdisc_destroy+0xee/0x340
[ 192.589411][ C2] dev_shutdown+0x164/0x350
[ 192.589642][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 192.589961][ C2] ? mutex_is_locked+0x17/0x50
[ 192.590202][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 192.590543][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 192.590855][ C2] default_device_exit_batch+0x234/0x2d0
[ 192.591135][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 192.591443][ C2] ? ops_exit_list+0xb4/0x170
[ 192.591680][ C2] cleanup_net+0x4f3/0xb60
[ 192.591902][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 192.592185][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 192.592435][ C2] ? lock_acquire+0x1c1/0x220
[ 192.592677][ C2] ? process_one_work+0x714/0x1310
[ 192.592937][ C2] process_one_work+0x78c/0x1310
[ 192.593188][ C2] ? hlock_class+0x4e/0x130
[ 192.593418][ C2] ? __pfx_process_one_work+0x10/0x10
[ 192.593688][ C2] ? assign_work+0x16c/0x240
[ 192.593922][ C2] worker_thread+0x73d/0x1010
[ 192.594164][ C2] ? __pfx_worker_thread+0x10/0x10
[ 192.594422][ C2] kthread+0x28f/0x360
[ 192.594627][ C2] ? __pfx_kthread+0x10/0x10
[ 192.594860][ C2] ret_from_fork+0x31/0x70
[ 192.595084][ C2] ? __pfx_kthread+0x10/0x10
[ 192.595317][ C2] ret_from_fork_asm+0x1b/0x30
[ 192.595564][ C2]
[ 220.563631][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 86s! [kworker/u8:0:11]
[ 220.564080][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 220.564492][ C2] irq event stamp: 753065
[ 220.564710][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 220.565176][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 220.565640][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 220.566107][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 220.566564][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 220.567035][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 220.567640][ C2] Workqueue: netns cleanup_net
[ 220.567883][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 220.568210][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 220.569170][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 220.569473][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 220.569868][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 220.570271][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 220.570665][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 220.571062][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 220.571459][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 220.571902][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 220.572233][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 220.572629][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 220.573028][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 220.573423][ C2] PKRU: 55555554
[ 220.573604][ C2] Call Trace:
[ 220.573772][ C2]
[ 220.573922][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 220.574185][ C2] ? __run_hrtimer+0x1c0/0x710
[ 220.574427][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 220.574702][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 220.574974][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 220.575263][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 220.575526][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 220.575830][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 220.576094][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 220.576399][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 220.576694][ C2]
[ 220.576844][ C2]
[ 220.576998][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 220.577310][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 220.577609][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 220.577904][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 220.578215][ C2] ? __pfx___schedule+0x10/0x10
[ 220.578463][ C2] do_raw_spin_lock+0x1ec/0x270
[ 220.578709][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 220.578980][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 220.579261][ C2] ? lock_acquire+0x1c1/0x220
[ 220.579499][ C2] ? __mutex_lock+0x33e/0xb10
[ 220.579738][ C2] ? __mutex_lock+0x811/0xb10
[ 220.579974][ C2] _raw_spin_lock+0x67/0x80
[ 220.580218][ C2] __mutex_lock+0x33e/0xb10
[ 220.580448][ C2] ? __lock_release+0x40f/0x880
[ 220.580692][ C2] ? __pfx___lock_release+0x10/0x10
[ 220.580954][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 220.581246][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 220.581500][ C2] ? __pfx___up_read+0x10/0x10
[ 220.581741][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 220.582012][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 220.582280][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 220.582573][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 220.582864][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 220.583159][ C2] __tcf_action_put+0x3d/0xf0
[ 220.583399][ C2] tcf_action_destroy+0x43/0x130
[ 220.583652][ C2] tcf_exts_destroy+0x3c/0xb0
[ 220.583888][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 220.584207][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 220.584488][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 220.584792][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 220.585085][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 220.585369][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 220.585683][ C2] ? __lock_release+0x40f/0x880
[ 220.585931][ C2] ? __mutex_lock+0x26e/0xb10
[ 220.586171][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 220.586456][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 220.586764][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 220.587063][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 220.587314][ C2] tcf_chain_flush+0x1e0/0x320
[ 220.587564][ C2] __tcf_block_put+0x113/0x270
[ 220.587807][ C2] tcf_block_put+0xaf/0xf0
[ 220.588036][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 220.588298][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 220.588570][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 220.588848][ C2] __qdisc_destroy+0xee/0x340
[ 220.589087][ C2] dev_shutdown+0x164/0x350
[ 220.589314][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 220.589634][ C2] ? mutex_is_locked+0x17/0x50
[ 220.589874][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 220.590225][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 220.590544][ C2] default_device_exit_batch+0x234/0x2d0
[ 220.590827][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 220.591136][ C2] ? ops_exit_list+0xb4/0x170
[ 220.591376][ C2] cleanup_net+0x4f3/0xb60
[ 220.591600][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 220.591882][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 220.592131][ C2] ? lock_acquire+0x1c1/0x220
[ 220.592369][ C2] ? process_one_work+0x714/0x1310
[ 220.592630][ C2] process_one_work+0x78c/0x1310
[ 220.592887][ C2] ? hlock_class+0x4e/0x130
[ 220.593118][ C2] ? __pfx_process_one_work+0x10/0x10
[ 220.593391][ C2] ? assign_work+0x16c/0x240
[ 220.593628][ C2] worker_thread+0x73d/0x1010
[ 220.593863][ C2] ? __pfx_worker_thread+0x10/0x10
[ 220.594126][ C2] kthread+0x28f/0x360
[ 220.594339][ C2] ? __pfx_kthread+0x10/0x10
[ 220.594569][ C2] ret_from_fork+0x31/0x70
[ 220.594800][ C2] ? __pfx_kthread+0x10/0x10
[ 220.595033][ C2] ret_from_fork_asm+0x1b/0x30
[ 220.595280][ C2]
[ 235.785937][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 235.786306][ C2] rcu: 2-....: (103880 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=25727
[ 235.786839][ C2] rcu: (t=104033 jiffies g=119533 q=6077 ncpus=4)
[ 235.787166][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 235.787633][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 235.788240][ C2] Workqueue: netns cleanup_net
[ 235.788487][ C2] RIP: 0010:kasan_report+0x19/0xf0
[ 235.788748][ C2] Code: 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca <65> 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 85 c0 0f 85 b7 00
[ 235.789707][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000282
[ 235.790013][ C2] RAX: 00000000000000fb RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 235.790412][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 235.790803][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 235.791201][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 235.791598][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 235.791994][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 235.792439][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 235.792769][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 235.793167][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 235.793565][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 235.793961][ C2] PKRU: 55555554
[ 235.794142][ C2] Call Trace:
[ 235.794312][ C2]
[ 235.794459][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 235.794732][ C2] ? print_cpu_stall+0x263/0x6a0
[ 235.794983][ C2] ? check_cpu_stall+0x284/0x500
[ 235.795234][ C2] ? rcu_pending+0x92/0x360
[ 235.795464][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 235.795732][ C2] ? update_process_times+0xb9/0x110
[ 235.796000][ C2] ? tick_sched_handle+0x67/0x130
[ 235.796254][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 235.796537][ C2] ? __run_hrtimer+0x1c0/0x710
[ 235.796778][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 235.797088][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 235.797357][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 235.797646][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 235.797909][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 235.798213][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 235.798473][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 235.798782][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 235.799075][ C2]
[ 235.799226][ C2]
[ 235.799375][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 235.799689][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 235.799984][ C2] ? kasan_report+0x19/0xf0
[ 235.800224][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 235.800508][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 235.800815][ C2] ? __pfx___schedule+0x10/0x10
[ 235.801061][ C2] do_raw_spin_lock+0x1ec/0x270
[ 235.801309][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 235.801578][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 235.801860][ C2] ? lock_acquire+0x1c1/0x220
[ 235.802097][ C2] ? __mutex_lock+0x33e/0xb10
[ 235.802332][ C2] ? __mutex_lock+0x811/0xb10
[ 235.802569][ C2] _raw_spin_lock+0x67/0x80
[ 235.802799][ C2] __mutex_lock+0x33e/0xb10
[ 235.803025][ C2] ? __lock_release+0x40f/0x880
[ 235.803270][ C2] ? __pfx___lock_release+0x10/0x10
[ 235.803530][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 235.803824][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 235.804077][ C2] ? __pfx___up_read+0x10/0x10
[ 235.804319][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 235.804586][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 235.804852][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 235.805142][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 235.805432][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 235.805717][ C2] __tcf_action_put+0x3d/0xf0
[ 235.805955][ C2] tcf_action_destroy+0x43/0x130
[ 235.806208][ C2] tcf_exts_destroy+0x3c/0xb0
[ 235.806444][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 235.806760][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 235.807030][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 235.807328][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 235.807621][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 235.807908][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 235.808217][ C2] ? __lock_release+0x40f/0x880
[ 235.808461][ C2] ? __mutex_lock+0x26e/0xb10
[ 235.808699][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 235.808979][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 235.809286][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 235.809588][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 235.809834][ C2] tcf_chain_flush+0x1e0/0x320
[ 235.810087][ C2] __tcf_block_put+0x113/0x270
[ 235.810327][ C2] tcf_block_put+0xaf/0xf0
[ 235.810552][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 235.810809][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 235.811078][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 235.811353][ C2] __qdisc_destroy+0xee/0x340
[ 235.811588][ C2] dev_shutdown+0x164/0x350
[ 235.811819][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 235.812139][ C2] ? mutex_is_locked+0x17/0x50
[ 235.812381][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 235.812716][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 235.813030][ C2] default_device_exit_batch+0x234/0x2d0
[ 235.813312][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 235.813620][ C2] ? ops_exit_list+0xb4/0x170
[ 235.813858][ C2] cleanup_net+0x4f3/0xb60
[ 235.814083][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 235.814364][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 235.814613][ C2] ? lock_acquire+0x1c1/0x220
[ 235.814849][ C2] ? process_one_work+0x714/0x1310
[ 235.815108][ C2] process_one_work+0x78c/0x1310
[ 235.815358][ C2] ? hlock_class+0x4e/0x130
[ 235.815584][ C2] ? __pfx_process_one_work+0x10/0x10
[ 235.815857][ C2] ? assign_work+0x16c/0x240
[ 235.816087][ C2] worker_thread+0x73d/0x1010
[ 235.816331][ C2] ? __pfx_worker_thread+0x10/0x10
[ 235.816587][ C2] kthread+0x28f/0x360
[ 235.816791][ C2] ? __pfx_kthread+0x10/0x10
[ 235.817024][ C2] ret_from_fork+0x31/0x70
[ 235.817250][ C2] ? __pfx_kthread+0x10/0x10
[ 235.817480][ C2] ret_from_fork_asm+0x1b/0x30
[ 235.817727][ C2]
[ 260.563631][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 123s! [kworker/u8:0:11]
[ 260.564085][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 260.564499][ C2] irq event stamp: 753065
[ 260.564713][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 260.565183][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 260.565651][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 260.566112][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 260.566568][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 260.567040][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 260.567645][ C2] Workqueue: netns cleanup_net
[ 260.567888][ C2] RIP: 0010:kasan_report+0xda/0xf0
[ 260.568146][ C2] Code: 7c f5 ff ff 48 8d 7c 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd ff ff ff 34 24 9d 48 83 c4 70 44 89 e0 5b <5d> 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 45 31 e4 eb e1 0f 1f 00
[ 260.569103][ C2] RSP: 0018:ffffc900000bf260 EFLAGS: 00000282
[ 260.569410][ C2] RAX: 0000000000000000 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 260.569802][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 260.570206][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 260.570602][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000000
[ 260.570996][ C2] R13: ffffffffaeeb35b0 R14: 0000000000000004 R15: ffff888001c02640
[ 260.571388][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 260.571831][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 260.572161][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 260.572560][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 260.572953][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 260.573344][ C2] PKRU: 55555554
[ 260.573525][ C2] Call Trace:
[ 260.573694][ C2]
[ 260.573841][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 260.574101][ C2] ? __run_hrtimer+0x1c0/0x710
[ 260.574342][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 260.574618][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 260.574888][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 260.575173][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 260.575435][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 260.575738][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 260.575998][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 260.576305][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 260.576598][ C2]
[ 260.576746][ C2]
[ 260.576893][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 260.577205][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 260.577493][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 260.577776][ C2] ? kasan_report+0xda/0xf0
[ 260.578007][ C2] kasan_check_range+0x39/0x1c0
[ 260.578254][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 260.578531][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 260.578841][ C2] ? __pfx___schedule+0x10/0x10
[ 260.579088][ C2] do_raw_spin_lock+0x1ec/0x270
[ 260.579335][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 260.579603][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 260.579883][ C2] ? lock_acquire+0x1c1/0x220
[ 260.580128][ C2] ? __mutex_lock+0x33e/0xb10
[ 260.580365][ C2] ? __mutex_lock+0x811/0xb10
[ 260.580603][ C2] _raw_spin_lock+0x67/0x80
[ 260.580830][ C2] __mutex_lock+0x33e/0xb10
[ 260.581060][ C2] ? __lock_release+0x40f/0x880
[ 260.581304][ C2] ? __pfx___lock_release+0x10/0x10
[ 260.581563][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 260.581857][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 260.582111][ C2] ? __pfx___up_read+0x10/0x10
[ 260.582349][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 260.582616][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 260.582881][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 260.583169][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 260.583461][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 260.583744][ C2] __tcf_action_put+0x3d/0xf0
[ 260.583984][ C2] tcf_action_destroy+0x43/0x130
[ 260.584235][ C2] tcf_exts_destroy+0x3c/0xb0
[ 260.584473][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 260.584789][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 260.585061][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 260.585358][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 260.585650][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 260.585932][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 260.586243][ C2] ? __lock_release+0x40f/0x880
[ 260.586489][ C2] ? __mutex_lock+0x26e/0xb10
[ 260.586728][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 260.587008][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 260.587315][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 260.587618][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 260.587864][ C2] tcf_chain_flush+0x1e0/0x320
[ 260.588106][ C2] __tcf_block_put+0x113/0x270
[ 260.588348][ C2] tcf_block_put+0xaf/0xf0
[ 260.588573][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 260.588831][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 260.589101][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 260.589373][ C2] __qdisc_destroy+0xee/0x340
[ 260.589611][ C2] dev_shutdown+0x164/0x350
[ 260.589839][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 260.590165][ C2] ? mutex_is_locked+0x17/0x50
[ 260.590404][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 260.590744][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 260.591058][ C2] default_device_exit_batch+0x234/0x2d0
[ 260.591340][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 260.591648][ C2] ? ops_exit_list+0xb4/0x170
[ 260.591886][ C2] cleanup_net+0x4f3/0xb60
[ 260.592110][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 260.592394][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 260.592642][ C2] ? lock_acquire+0x1c1/0x220
[ 260.592877][ C2] ? process_one_work+0x714/0x1310
[ 260.593136][ C2] process_one_work+0x78c/0x1310
[ 260.593388][ C2] ? hlock_class+0x4e/0x130
[ 260.593618][ C2] ? __pfx_process_one_work+0x10/0x10
[ 260.593887][ C2] ? assign_work+0x16c/0x240
[ 260.594121][ C2] worker_thread+0x73d/0x1010
[ 260.594361][ C2] ? __pfx_worker_thread+0x10/0x10
[ 260.594617][ C2] kthread+0x28f/0x360
[ 260.594822][ C2] ? __pfx_kthread+0x10/0x10
[ 260.595056][ C2] ret_from_fork+0x31/0x70
[ 260.595279][ C2] ? __pfx_kthread+0x10/0x10
[ 260.595511][ C2] ret_from_fork_asm+0x1b/0x30
[ 260.595758][ C2]
[ 263.495961][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 131437 jiffies s: 4309 root: 0x4/.
[ 263.496597][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 263.496991][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 263.497269][ C2] NMI backtrace for cpu 2
[ 263.497274][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 263.497278][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 263.497281][ C2] Workqueue: netns cleanup_net
[ 263.497289][ C2] RIP: 0010:kasan_report+0x19/0xf0
[ 263.497295][ C2] Code: 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca <65> 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 85 c0 0f 85 b7 00
[ 263.497297][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 263.497300][ C2] RAX: 0000000000000001 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 263.497302][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 263.497303][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 263.497305][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 263.497307][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 263.497308][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 263.497310][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 263.497314][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 263.497316][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 263.497317][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 263.497318][ C2] PKRU: 55555554
[ 263.497319][ C2] Call Trace:
[ 263.497322][ C2]
[ 263.497325][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 263.497331][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 263.497335][ C2] ? nmi_handle+0x153/0x420
[ 263.497339][ C2] ? default_do_nmi+0x41/0x100
[ 263.497344][ C2] ? exc_nmi+0xf3/0x120
[ 263.497346][ C2] ? end_repeat_nmi+0xf/0x60
[ 263.497351][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 263.497356][ C2] ? kasan_report+0x19/0xf0
[ 263.497359][ C2] ? kasan_report+0x19/0xf0
[ 263.497361][ C2] ? kasan_report+0x19/0xf0
[ 263.497364][ C2]
[ 263.497365][ C2]
[ 263.497368][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 263.497372][ C2] kasan_check_range+0x39/0x1c0
[ 263.497377][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 263.497380][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 263.497385][ C2] ? __pfx___schedule+0x10/0x10
[ 263.497389][ C2] do_raw_spin_lock+0x1ec/0x270
[ 263.497395][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 263.497398][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 263.497401][ C2] ? lock_acquire+0x1c1/0x220
[ 263.497403][ C2] ? __mutex_lock+0x33e/0xb10
[ 263.497407][ C2] ? __mutex_lock+0x811/0xb10
[ 263.497409][ C2] _raw_spin_lock+0x67/0x80
[ 263.497412][ C2] __mutex_lock+0x33e/0xb10
[ 263.497415][ C2] ? __lock_release+0x40f/0x880
[ 263.497418][ C2] ? __pfx___lock_release+0x10/0x10
[ 263.497421][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 263.497426][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 263.497429][ C2] ? __pfx___up_read+0x10/0x10
[ 263.497432][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 263.497435][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 263.497440][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 263.497446][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 263.497449][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 263.497453][ C2] __tcf_action_put+0x3d/0xf0
[ 263.497457][ C2] tcf_action_destroy+0x43/0x130
[ 263.497460][ C2] tcf_exts_destroy+0x3c/0xb0
[ 263.497463][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 263.497474][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 263.497482][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 263.497490][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 263.497499][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 263.497508][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 263.497515][ C2] ? __lock_release+0x40f/0x880
[ 263.497518][ C2] ? __mutex_lock+0x26e/0xb10
[ 263.497522][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 263.497532][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 263.497539][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 263.497544][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 263.497548][ C2] tcf_chain_flush+0x1e0/0x320
[ 263.497552][ C2] __tcf_block_put+0x113/0x270
[ 263.497556][ C2] tcf_block_put+0xaf/0xf0
[ 263.497559][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 263.497564][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 263.497570][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 263.497577][ C2] __qdisc_destroy+0xee/0x340
[ 263.497580][ C2] dev_shutdown+0x164/0x350
[ 263.497584][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 263.497589][ C2] ? mutex_is_locked+0x17/0x50
[ 263.497592][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 263.497595][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 263.497599][ C2] default_device_exit_batch+0x234/0x2d0
[ 263.497602][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 263.497606][ C2] ? ops_exit_list+0xb4/0x170
[ 263.497609][ C2] cleanup_net+0x4f3/0xb60
[ 263.497611][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 263.497614][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 263.497617][ C2] ? lock_acquire+0x1c1/0x220
[ 263.497619][ C2] ? process_one_work+0x714/0x1310
[ 263.497624][ C2] process_one_work+0x78c/0x1310
[ 263.497628][ C2] ? hlock_class+0x4e/0x130
[ 263.497632][ C2] ? __pfx_process_one_work+0x10/0x10
[ 263.497636][ C2] ? assign_work+0x16c/0x240
[ 263.497639][ C2] worker_thread+0x73d/0x1010
[ 263.497645][ C2] ? __pfx_worker_thread+0x10/0x10
[ 263.497647][ C2] kthread+0x28f/0x360
[ 263.497650][ C2] ? __pfx_kthread+0x10/0x10
[ 263.497653][ C2] ret_from_fork+0x31/0x70
[ 263.497656][ C2] ? __pfx_kthread+0x10/0x10
[ 263.497658][ C2] ret_from_fork_asm+0x1b/0x30
[ 263.497666][ C2]
[ 288.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 149s! [kworker/u8:0:11]
[ 288.564082][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 288.564495][ C2] irq event stamp: 753065
[ 288.564712][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 288.565179][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 288.565645][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 288.566108][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 288.566565][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 288.567033][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 288.567639][ C2] Workqueue: netns cleanup_net
[ 288.567886][ C2] RIP: 0010:kasan_check_range+0x12/0x1c0
[ 288.568170][ C2] Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 85 f6 0f 84 5e 01 00 00 48 89 f8 41 54 <44> 0f b6 c2 48 01 f0 55 53 72 14 eb 26 cc cc cc 48 b8 ff ff ff ff
[ 288.569127][ C2] RSP: 0018:ffffc900000bf2a0 EFLAGS: 00000202
[ 288.569431][ C2] RAX: ffff8880380fd008 RBX: 000000000000000b RCX: ffffffffaeeb35b0
[ 288.569833][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 288.570228][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 288.570621][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 288.571016][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 288.571406][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 288.571846][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 288.572176][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 288.572573][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 288.572967][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 288.573359][ C2] PKRU: 55555554
[ 288.573538][ C2] Call Trace:
[ 288.573707][ C2]
[ 288.573853][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 288.574112][ C2] ? __run_hrtimer+0x1c0/0x710
[ 288.574354][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 288.574628][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 288.574898][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 288.575181][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 288.575441][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 288.575743][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 288.576002][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 288.576307][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 288.576599][ C2]
[ 288.576747][ C2]
[ 288.576894][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 288.577207][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 288.577494][ C2] ? kasan_check_range+0x12/0x1c0
[ 288.577747][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 288.578025][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 288.578334][ C2] ? __pfx___schedule+0x10/0x10
[ 288.578581][ C2] do_raw_spin_lock+0x1ec/0x270
[ 288.578828][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 288.579096][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 288.579377][ C2] ? lock_acquire+0x1c1/0x220
[ 288.579613][ C2] ? __mutex_lock+0x33e/0xb10
[ 288.579861][ C2] ? __mutex_lock+0x811/0xb10
[ 288.580099][ C2] _raw_spin_lock+0x67/0x80
[ 288.580325][ C2] __mutex_lock+0x33e/0xb10
[ 288.580555][ C2] ? __lock_release+0x40f/0x880
[ 288.580800][ C2] ? __pfx___lock_release+0x10/0x10
[ 288.581061][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 288.581356][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 288.581609][ C2] ? __pfx___up_read+0x10/0x10
[ 288.581849][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 288.582119][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 288.582386][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 288.582673][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 288.582966][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 288.583250][ C2] __tcf_action_put+0x3d/0xf0
[ 288.583488][ C2] tcf_action_destroy+0x43/0x130
[ 288.583738][ C2] tcf_exts_destroy+0x3c/0xb0
[ 288.583976][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 288.584291][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 288.584562][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 288.584856][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 288.585150][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 288.585432][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 288.585742][ C2] ? __lock_release+0x40f/0x880
[ 288.585987][ C2] ? __mutex_lock+0x26e/0xb10
[ 288.586226][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 288.586505][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 288.586810][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 288.587111][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 288.587355][ C2] tcf_chain_flush+0x1e0/0x320
[ 288.587597][ C2] __tcf_block_put+0x113/0x270
[ 288.587839][ C2] tcf_block_put+0xaf/0xf0
[ 288.588065][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 288.588328][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 288.588597][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 288.588868][ C2] __qdisc_destroy+0xee/0x340
[ 288.589107][ C2] dev_shutdown+0x164/0x350
[ 288.589335][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 288.589653][ C2] ? mutex_is_locked+0x17/0x50
[ 288.589901][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 288.590238][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 288.590551][ C2] default_device_exit_batch+0x234/0x2d0
[ 288.590831][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 288.591141][ C2] ? ops_exit_list+0xb4/0x170
[ 288.591378][ C2] cleanup_net+0x4f3/0xb60
[ 288.591600][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 288.591882][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 288.592131][ C2] ? lock_acquire+0x1c1/0x220
[ 288.592365][ C2] ? process_one_work+0x714/0x1310
[ 288.592623][ C2] process_one_work+0x78c/0x1310
[ 288.592873][ C2] ? hlock_class+0x4e/0x130
[ 288.593102][ C2] ? __pfx_process_one_work+0x10/0x10
[ 288.593371][ C2] ? assign_work+0x16c/0x240
[ 288.593604][ C2] worker_thread+0x73d/0x1010
[ 288.593843][ C2] ? __pfx_worker_thread+0x10/0x10
[ 288.594099][ C2] kthread+0x28f/0x360
[ 288.594305][ C2] ? __pfx_kthread+0x10/0x10
[ 288.594537][ C2] ret_from_fork+0x31/0x70
[ 288.594759][ C2] ? __pfx_kthread+0x10/0x10
[ 288.594991][ C2] ret_from_fork_asm+0x1b/0x30
[ 288.595236][ C2]
[ 313.818936][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 313.819303][ C2] rcu: 2-....: (181795 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=45123
[ 313.819840][ C2] rcu: (t=182066 jiffies g=119533 q=6081 ncpus=4)
[ 313.820166][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 313.820634][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 313.821234][ C2] Workqueue: netns cleanup_net
[ 313.821480][ C2] RIP: 0010:kasan_report+0x6/0xf0
[ 313.821735][ C2] Code: 83 c4 68 5b 5d 41 5c c3 cc cc cc cc 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 <41> 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca 65 4c 8b
[ 313.822687][ C2] RSP: 0018:ffffc900000bf280 EFLAGS: 00000213
[ 313.822991][ C2] RAX: 0000000000000001 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 313.823383][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 313.823777][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 313.824174][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 313.824568][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 313.824959][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 313.825398][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 313.825727][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 313.826123][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 313.826514][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 313.826907][ C2] PKRU: 55555554
[ 313.827087][ C2] Call Trace:
[ 313.827261][ C2]
[ 313.827407][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 313.827678][ C2] ? print_cpu_stall+0x263/0x6a0
[ 313.827925][ C2] ? check_cpu_stall+0x284/0x500
[ 313.828173][ C2] ? rcu_pending+0x92/0x360
[ 313.828402][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 313.828667][ C2] ? update_process_times+0xb9/0x110
[ 313.828933][ C2] ? tick_sched_handle+0x67/0x130
[ 313.829187][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 313.829470][ C2] ? __run_hrtimer+0x1c0/0x710
[ 313.829717][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 313.830024][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 313.830292][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 313.830573][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 313.830833][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 313.831136][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 313.831393][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 313.831697][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 313.831990][ C2]
[ 313.832137][ C2]
[ 313.832284][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 313.832597][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 313.832885][ C2] ? kasan_report+0x6/0xf0
[ 313.833107][ C2] kasan_check_range+0x39/0x1c0
[ 313.833353][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 313.833632][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 313.833938][ C2] ? __pfx___schedule+0x10/0x10
[ 313.834183][ C2] do_raw_spin_lock+0x1ec/0x270
[ 313.834430][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 313.834701][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 313.834981][ C2] ? lock_acquire+0x1c1/0x220
[ 313.835217][ C2] ? __mutex_lock+0x33e/0xb10
[ 313.835451][ C2] ? __mutex_lock+0x811/0xb10
[ 313.835688][ C2] _raw_spin_lock+0x67/0x80
[ 313.835916][ C2] __mutex_lock+0x33e/0xb10
[ 313.836144][ C2] ? __lock_release+0x40f/0x880
[ 313.836389][ C2] ? __pfx___lock_release+0x10/0x10
[ 313.836648][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 313.836943][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 313.837195][ C2] ? __pfx___up_read+0x10/0x10
[ 313.837440][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 313.837704][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 313.837969][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 313.838258][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 313.838546][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 313.838830][ C2] __tcf_action_put+0x3d/0xf0
[ 313.839068][ C2] tcf_action_destroy+0x43/0x130
[ 313.839318][ C2] tcf_exts_destroy+0x3c/0xb0
[ 313.839552][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 313.839878][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 313.840148][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 313.840445][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 313.840735][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 313.841021][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 313.841328][ C2] ? __lock_release+0x40f/0x880
[ 313.841572][ C2] ? __mutex_lock+0x26e/0xb10
[ 313.841809][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 313.842089][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 313.842391][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 313.842692][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 313.842937][ C2] tcf_chain_flush+0x1e0/0x320
[ 313.843179][ C2] __tcf_block_put+0x113/0x270
[ 313.843419][ C2] tcf_block_put+0xaf/0xf0
[ 313.843646][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 313.843903][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 313.844170][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 313.844442][ C2] __qdisc_destroy+0xee/0x340
[ 313.844676][ C2] dev_shutdown+0x164/0x350
[ 313.844906][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 313.845224][ C2] ? mutex_is_locked+0x17/0x50
[ 313.845464][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 313.845798][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 313.846111][ C2] default_device_exit_batch+0x234/0x2d0
[ 313.846390][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 313.846696][ C2] ? ops_exit_list+0xb4/0x170
[ 313.846932][ C2] cleanup_net+0x4f3/0xb60
[ 313.847157][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 313.847438][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 313.847685][ C2] ? lock_acquire+0x1c1/0x220
[ 313.847920][ C2] ? process_one_work+0x714/0x1310
[ 313.848178][ C2] process_one_work+0x78c/0x1310
[ 313.848427][ C2] ? hlock_class+0x4e/0x130
[ 313.848653][ C2] ? __pfx_process_one_work+0x10/0x10
[ 313.848926][ C2] ? assign_work+0x16c/0x240
[ 313.849157][ C2] worker_thread+0x73d/0x1010
[ 313.849397][ C2] ? __pfx_worker_thread+0x10/0x10
[ 313.849651][ C2] kthread+0x28f/0x360
[ 313.849864][ C2] ? __pfx_kthread+0x10/0x10
[ 313.850099][ C2] ret_from_fork+0x31/0x70
[ 313.850322][ C2] ? __pfx_kthread+0x10/0x10
[ 313.850553][ C2] ret_from_fork_asm+0x1b/0x30
[ 313.850799][ C2]
[ 340.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 198s! [kworker/u8:0:11]
[ 340.564087][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 340.564498][ C2] irq event stamp: 753065
[ 340.564715][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 340.565185][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 340.565664][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 340.566137][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 340.566592][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 340.567058][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 340.567661][ C2] Workqueue: netns cleanup_net
[ 340.567902][ C2] RIP: 0010:kasan_report+0xd2/0xf0
[ 340.568162][ C2] Code: 24 28 4c 89 6c 24 30 e8 7c f5 ff ff 48 8d 7c 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd ff ff ff 34 24 9d <48> 83 c4 70 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc
[ 340.569124][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000282
[ 340.569427][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb3f0c
[ 340.569832][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 340.570225][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 340.570616][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000000
[ 340.571008][ C2] R13: ffffffffaeeb3f0c R14: 0000000000000004 R15: ffff888001c02640
[ 340.571401][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 340.571840][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 340.572169][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 340.572562][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 340.572955][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 340.573348][ C2] PKRU: 55555554
[ 340.573526][ C2] Call Trace:
[ 340.573692][ C2]
[ 340.573841][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 340.574100][ C2] ? __run_hrtimer+0x1c0/0x710
[ 340.574338][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 340.574612][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 340.574879][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 340.575163][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 340.575425][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 340.575725][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 340.575984][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 340.576288][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 340.576579][ C2]
[ 340.576725][ C2]
[ 340.576875][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 340.577184][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 340.577474][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 340.577766][ C2] ? kasan_report+0xd2/0xf0
[ 340.577992][ C2] ? kasan_report+0xe/0xf0
[ 340.578219][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 340.578498][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 340.578805][ C2] ? __pfx___schedule+0x10/0x10
[ 340.579051][ C2] do_raw_spin_lock+0x1ec/0x270
[ 340.579297][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 340.579572][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 340.579854][ C2] ? lock_acquire+0x1c1/0x220
[ 340.580089][ C2] ? __mutex_lock+0x33e/0xb10
[ 340.580325][ C2] ? __mutex_lock+0x811/0xb10
[ 340.580561][ C2] _raw_spin_lock+0x67/0x80
[ 340.580789][ C2] __mutex_lock+0x33e/0xb10
[ 340.581016][ C2] ? __lock_release+0x40f/0x880
[ 340.581260][ C2] ? __pfx___lock_release+0x10/0x10
[ 340.581519][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 340.581812][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 340.582069][ C2] ? __pfx___up_read+0x10/0x10
[ 340.582310][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 340.582574][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 340.582841][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 340.583130][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 340.583420][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 340.583703][ C2] __tcf_action_put+0x3d/0xf0
[ 340.583940][ C2] tcf_action_destroy+0x43/0x130
[ 340.584190][ C2] tcf_exts_destroy+0x3c/0xb0
[ 340.584427][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 340.584745][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 340.585018][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 340.585314][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 340.585603][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 340.585888][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 340.586195][ C2] ? __lock_release+0x40f/0x880
[ 340.586444][ C2] ? __mutex_lock+0x26e/0xb10
[ 340.586681][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 340.586960][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 340.587264][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 340.587564][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 340.587809][ C2] tcf_chain_flush+0x1e0/0x320
[ 340.588051][ C2] __tcf_block_put+0x113/0x270
[ 340.588291][ C2] tcf_block_put+0xaf/0xf0
[ 340.588516][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 340.588774][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 340.589042][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 340.589313][ C2] __qdisc_destroy+0xee/0x340
[ 340.589564][ C2] dev_shutdown+0x164/0x350
[ 340.589794][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 340.590113][ C2] ? mutex_is_locked+0x17/0x50
[ 340.590354][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 340.590689][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 340.591002][ C2] default_device_exit_batch+0x234/0x2d0
[ 340.591281][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 340.591589][ C2] ? ops_exit_list+0xb4/0x170
[ 340.591825][ C2] cleanup_net+0x4f3/0xb60
[ 340.592049][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 340.592329][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 340.592578][ C2] ? lock_acquire+0x1c1/0x220
[ 340.592813][ C2] ? process_one_work+0x714/0x1310
[ 340.593072][ C2] process_one_work+0x78c/0x1310
[ 340.593325][ C2] ? hlock_class+0x4e/0x130
[ 340.593552][ C2] ? __pfx_process_one_work+0x10/0x10
[ 340.593822][ C2] ? assign_work+0x16c/0x240
[ 340.594060][ C2] worker_thread+0x73d/0x1010
[ 340.594306][ C2] ? __pfx_worker_thread+0x10/0x10
[ 340.594563][ C2] kthread+0x28f/0x360
[ 340.594768][ C2] ? __pfx_kthread+0x10/0x10
[ 340.595001][ C2] ret_from_fork+0x31/0x70
[ 340.595225][ C2] ? __pfx_kthread+0x10/0x10
[ 340.595455][ C2] ret_from_fork_asm+0x1b/0x30
[ 340.595701][ C2]
[ 361.799972][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 229741 jiffies s: 4309 root: 0x4/.
[ 361.800668][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 361.801058][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 361.801356][ C2] NMI backtrace for cpu 2
[ 361.801362][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 361.801366][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 361.801369][ C2] Workqueue: netns cleanup_net
[ 361.801377][ C2] RIP: 0010:kasan_report+0x22/0xf0
[ 361.801382][ C2] Code: 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca 65 4c 8b 3c 25 80 b8 1f 00 <41> 8b 87 e0 17 00 00 85 c0 0f 85 b7 00 00 00 48 89 fd 49 89 f6 89
[ 361.801385][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 361.801388][ C2] RAX: 0000000000000001 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 361.801390][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 361.801391][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 361.801393][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 361.801394][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: ffff888001c02640
[ 361.801396][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 361.801399][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 361.801402][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 361.801404][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 361.801405][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 361.801407][ C2] PKRU: 55555554
[ 361.801408][ C2] Call Trace:
[ 361.801411][ C2]
[ 361.801414][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 361.801420][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 361.801425][ C2] ? nmi_handle+0x153/0x420
[ 361.801430][ C2] ? default_do_nmi+0x41/0x100
[ 361.801434][ C2] ? exc_nmi+0xf3/0x120
[ 361.801437][ C2] ? end_repeat_nmi+0xf/0x60
[ 361.801442][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 361.801446][ C2] ? kasan_report+0x22/0xf0
[ 361.801449][ C2] ? kasan_report+0x22/0xf0
[ 361.801452][ C2] ? kasan_report+0x22/0xf0
[ 361.801455][ C2]
[ 361.801456][ C2]
[ 361.801460][ C2] kasan_check_range+0x39/0x1c0
[ 361.801464][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 361.801468][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 361.801472][ C2] ? __pfx___schedule+0x10/0x10
[ 361.801477][ C2] do_raw_spin_lock+0x1ec/0x270
[ 361.801483][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 361.801485][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 361.801488][ C2] ? lock_acquire+0x1c1/0x220
[ 361.801491][ C2] ? __mutex_lock+0x33e/0xb10
[ 361.801495][ C2] ? __mutex_lock+0x811/0xb10
[ 361.801498][ C2] _raw_spin_lock+0x67/0x80
[ 361.801500][ C2] __mutex_lock+0x33e/0xb10
[ 361.801504][ C2] ? __lock_release+0x40f/0x880
[ 361.801507][ C2] ? __pfx___lock_release+0x10/0x10
[ 361.801510][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 361.801515][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 361.801518][ C2] ? __pfx___up_read+0x10/0x10
[ 361.801522][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 361.801525][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 361.801529][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 361.801535][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 361.801538][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 361.801541][ C2] __tcf_action_put+0x3d/0xf0
[ 361.801545][ C2] tcf_action_destroy+0x43/0x130
[ 361.801549][ C2] tcf_exts_destroy+0x3c/0xb0
[ 361.801552][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 361.801562][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 361.801571][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 361.801579][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 361.801588][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 361.801597][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 361.801605][ C2] ? __lock_release+0x40f/0x880
[ 361.801609][ C2] ? __mutex_lock+0x26e/0xb10
[ 361.801613][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 361.801622][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 361.801630][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 361.801634][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 361.801638][ C2] tcf_chain_flush+0x1e0/0x320
[ 361.801642][ C2] __tcf_block_put+0x113/0x270
[ 361.801646][ C2] tcf_block_put+0xaf/0xf0
[ 361.801649][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 361.801653][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 361.801659][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 361.801668][ C2] __qdisc_destroy+0xee/0x340
[ 361.801672][ C2] dev_shutdown+0x164/0x350
[ 361.801676][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 361.801681][ C2] ? mutex_is_locked+0x17/0x50
[ 361.801684][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 361.801687][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 361.801691][ C2] default_device_exit_batch+0x234/0x2d0
[ 361.801694][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 361.801697][ C2] ? ops_exit_list+0xb4/0x170
[ 361.801700][ C2] cleanup_net+0x4f3/0xb60
[ 361.801703][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 361.801706][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 361.801709][ C2] ? lock_acquire+0x1c1/0x220
[ 361.801711][ C2] ? process_one_work+0x714/0x1310
[ 361.801716][ C2] process_one_work+0x78c/0x1310
[ 361.801720][ C2] ? hlock_class+0x4e/0x130
[ 361.801723][ C2] ? __pfx_process_one_work+0x10/0x10
[ 361.801728][ C2] ? assign_work+0x16c/0x240
[ 361.801731][ C2] worker_thread+0x73d/0x1010
[ 361.801737][ C2] ? __pfx_worker_thread+0x10/0x10
[ 361.801739][ C2] kthread+0x28f/0x360
[ 361.801742][ C2] ? __pfx_kthread+0x10/0x10
[ 361.801745][ C2] ret_from_fork+0x31/0x70
[ 361.801748][ C2] ? __pfx_kthread+0x10/0x10
[ 361.801750][ C2] ret_from_fork_asm+0x1b/0x30
[ 361.801758][ C2]
[ 369.991982][ T41] INFO: task kworker/1:1:47 blocked for more than 122 seconds.
[ 369.992416][ T41] Tainted: G B L 6.8.0-rc2-virtme #1
[ 369.992768][ T41] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 369.993219][ T41] task:kworker/1:1 state:D stack:26880 pid:47 tgid:47 ppid:2 flags:0x00004000
[ 369.993737][ T41] Workqueue: events linkwatch_event
[ 369.994020][ T41] Call Trace:
[ 369.994208][ T41]
[ 369.994365][ T41] __schedule+0x705/0x1ac0
[ 369.994603][ T41] ? __pfx___schedule+0x10/0x10
[ 369.994850][ T41] ? __pfx___lock_release+0x10/0x10
[ 369.995135][ T41] ? hlock_class+0x4e/0x130
[ 369.995367][ T41] ? mark_held_locks+0xa5/0xf0
[ 369.995610][ T41] ? schedule+0x1fe/0x280
[ 369.995831][ T41] schedule+0xeb/0x280
[ 369.996049][ T41] schedule_preempt_disabled+0x15/0x30
[ 369.996330][ T41] __mutex_lock+0x5e4/0xb10
[ 369.996565][ T41] ? lock_acquire.part.0+0xe5/0x330
[ 369.996830][ T41] ? process_one_work+0x714/0x1310
[ 369.997095][ T41] ? linkwatch_event+0xe/0x60
[ 369.997340][ T41] ? __pfx___mutex_lock+0x10/0x10
[ 369.997596][ T41] ? __pfx___lock_release+0x10/0x10
[ 369.997860][ T41] ? lock_acquire+0x1c1/0x220
[ 369.998111][ T41] ? linkwatch_event+0xe/0x60
[ 369.998352][ T41] linkwatch_event+0xe/0x60
[ 369.998580][ T41] process_one_work+0x78c/0x1310
[ 369.998835][ T41] ? hlock_class+0x4e/0x130
[ 369.999073][ T41] ? __pfx_process_one_work+0x10/0x10
[ 369.999353][ T41] ? assign_work+0x16c/0x240
[ 369.999602][ T41] worker_thread+0x73d/0x1010
[ 369.999842][ T41] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370
[ 370.000186][ T41] ? __pfx_worker_thread+0x10/0x10
[ 370.000447][ T41] ? __pfx_worker_thread+0x10/0x10
[ 370.000705][ T41] kthread+0x28f/0x360
[ 370.000912][ T41] ? __pfx_kthread+0x10/0x10
[ 370.001166][ T41] ret_from_fork+0x31/0x70
[ 370.001396][ T41] ? __pfx_kthread+0x10/0x10
[ 370.001629][ T41] ret_from_fork_asm+0x1b/0x30
[ 370.001876][ T41]
[ 370.002056][ T41] INFO: task ip:937 blocked for more than 122 seconds.
[ 370.002404][ T41] Tainted: G B L 6.8.0-rc2-virtme #1
[ 370.002755][ T41] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 370.003204][ T41] task:ip state:D stack:26608 pid:937 tgid:937 ppid:835 flags:0x00004002
[ 370.003719][ T41] Call Trace:
[ 370.003885][ T41]
[ 370.004045][ T41] __schedule+0x705/0x1ac0
[ 370.004284][ T41] ? __pfx___schedule+0x10/0x10
[ 370.004529][ T41] ? do_raw_spin_trylock+0xb9/0x190
[ 370.004794][ T41] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 370.005085][ T41] ? lock_acquire+0x1c1/0x220
[ 370.005356][ T41] ? lock_acquire+0x1c1/0x220
[ 370.005594][ T41] ? schedule+0x163/0x280
[ 370.005814][ T41] schedule+0xeb/0x280
[ 370.006030][ T41] synchronize_rcu_expedited+0x3c8/0x500
[ 370.006324][ T41] ? __pfx_synchronize_rcu_expedited+0x10/0x10
[ 370.006637][ T41] ? __pfx_autoremove_wake_function+0x10/0x10
[ 370.006952][ T41] ? trace_irq_enable.constprop.0+0xd4/0x100
[ 370.007265][ T41] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 370.007535][ T41] ? trace_irq_enable.constprop.0+0xd4/0x100
[ 370.007839][ T41] ? mnt_release_group_id+0x44/0x90
[ 370.008124][ T41] ? __up_write+0x190/0x520
[ 370.008356][ T41] namespace_unlock+0x1a4/0x420
[ 370.008604][ T41] ? umount_tree+0x6ee/0xfb0
[ 370.008839][ T41] ? __pfx_namespace_unlock+0x10/0x10
[ 370.009133][ T41] ? __pfx_umount_tree+0x10/0x10
[ 370.009385][ T41] ? lock_acquire+0x1c1/0x220
[ 370.009634][ T41] do_umount+0x378/0xb10
[ 370.009851][ T41] ? __pfx_do_umount+0x10/0x10
[ 370.010099][ T41] ? user_path_at_empty+0x49/0x60
[ 370.010362][ T41] ? __kasan_slab_free+0x107/0x1c0
[ 370.010624][ T41] path_umount+0x1f6/0x360
[ 370.010854][ T41] __x64_sys_umount+0x10b/0x130
[ 370.011111][ T41] ? __pfx___x64_sys_umount+0x10/0x10
[ 370.011382][ T41] ? do_user_addr_fault+0x46e/0xba0
[ 370.011649][ T41] do_syscall_64+0xc9/0x1e0
[ 370.011884][ T41] entry_SYSCALL_64_after_hwframe+0x6f/0x77
[ 370.012211][ T41] RIP: 0033:0x7fb2529d963b
[ 370.012441][ T41] RSP: 002b:00007ffd1b612618 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[ 370.012864][ T41] RAX: ffffffffffffffda RBX: 000000000046d7b0 RCX: 00007fb2529d963b
[ 370.013272][ T41] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00007ffd1b612620
[ 370.013668][ T41] RBP: 0000000000000003 R08: 0000000000000000 R09: 00007ffd1b6124b0
[ 370.014074][ T41] R10: 00007fb25289f8d0 R11: 0000000000000206 R12: 00007ffd1b6137d0
[ 370.014482][ T41] R13: 0000000000000001 R14: 00007ffd1b614a5d R15: 0000000000000000
[ 370.014883][ T41]
[ 370.015051][ T41] INFO: lockdep is turned off.
[ 388.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 242s! [kworker/u8:0:11]
[ 388.564091][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 388.564503][ C2] irq event stamp: 753065
[ 388.564722][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 388.565192][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 388.565655][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 388.566121][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 388.566578][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 388.567046][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 388.567653][ C2] Workqueue: netns cleanup_net
[ 388.567896][ C2] RIP: 0010:report_enabled+0x19/0x30
[ 388.568165][ C2] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 05 b9 a9 a4 05 48 d1 e8 83 e0 01 75 0d f0 48 0f ba 2d a7 a9 a4 05 00 <0f> 93 c0 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40
[ 388.569136][ C2] RSP: 0018:ffffc900000bf1e0 EFLAGS: 00000247
[ 388.569455][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb35b0
[ 388.569862][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 388.570255][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 388.570649][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 388.571044][ C2] R13: ffffffffaeeb35b0 R14: 0000000000000004 R15: ffff888001c02640
[ 388.571436][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 388.571876][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 388.572204][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 388.572600][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 388.572994][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 388.573386][ C2] PKRU: 55555554
[ 388.573566][ C2] Call Trace:
[ 388.573735][ C2]
[ 388.573881][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 388.574142][ C2] ? __run_hrtimer+0x1c0/0x710
[ 388.574383][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 388.574656][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 388.574925][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 388.575211][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 388.575472][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 388.575774][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 388.576035][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 388.576340][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 388.576630][ C2]
[ 388.576780][ C2]
[ 388.576927][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 388.577242][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 388.577527][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 388.577815][ C2] ? report_enabled+0x19/0x30
[ 388.578053][ C2] kasan_report+0x41/0xf0
[ 388.578272][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 388.578560][ C2] kasan_check_range+0x39/0x1c0
[ 388.578805][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 388.579085][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 388.579402][ C2] ? __pfx___schedule+0x10/0x10
[ 388.579651][ C2] do_raw_spin_lock+0x1ec/0x270
[ 388.579897][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 388.580167][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 388.580447][ C2] ? lock_acquire+0x1c1/0x220
[ 388.580685][ C2] ? __mutex_lock+0x33e/0xb10
[ 388.580922][ C2] ? __mutex_lock+0x811/0xb10
[ 388.581158][ C2] _raw_spin_lock+0x67/0x80
[ 388.581387][ C2] __mutex_lock+0x33e/0xb10
[ 388.581617][ C2] ? __lock_release+0x40f/0x880
[ 388.581860][ C2] ? __pfx___lock_release+0x10/0x10
[ 388.582122][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 388.582414][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 388.582667][ C2] ? __pfx___up_read+0x10/0x10
[ 388.582910][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 388.583175][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 388.583442][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 388.583730][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 388.584022][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 388.584303][ C2] __tcf_action_put+0x3d/0xf0
[ 388.584542][ C2] tcf_action_destroy+0x43/0x130
[ 388.584791][ C2] tcf_exts_destroy+0x3c/0xb0
[ 388.585026][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 388.585341][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 388.585612][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 388.585907][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 388.586200][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 388.586482][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 388.586789][ C2] ? __lock_release+0x40f/0x880
[ 388.587035][ C2] ? __mutex_lock+0x26e/0xb10
[ 388.587271][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 388.587551][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 388.587858][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 388.588159][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 388.588405][ C2] tcf_chain_flush+0x1e0/0x320
[ 388.588647][ C2] __tcf_block_put+0x113/0x270
[ 388.588888][ C2] tcf_block_put+0xaf/0xf0
[ 388.589111][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 388.589382][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 388.589654][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 388.589926][ C2] __qdisc_destroy+0xee/0x340
[ 388.590164][ C2] dev_shutdown+0x164/0x350
[ 388.590392][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 388.590711][ C2] ? mutex_is_locked+0x17/0x50
[ 388.590952][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 388.591287][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 388.591600][ C2] default_device_exit_batch+0x234/0x2d0
[ 388.591882][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 388.592191][ C2] ? ops_exit_list+0xb4/0x170
[ 388.592427][ C2] cleanup_net+0x4f3/0xb60
[ 388.592653][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 388.592933][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 388.593183][ C2] ? lock_acquire+0x1c1/0x220
[ 388.593420][ C2] ? process_one_work+0x714/0x1310
[ 388.593678][ C2] process_one_work+0x78c/0x1310
[ 388.593928][ C2] ? hlock_class+0x4e/0x130
[ 388.594159][ C2] ? __pfx_process_one_work+0x10/0x10
[ 388.594430][ C2] ? assign_work+0x16c/0x240
[ 388.594663][ C2] worker_thread+0x73d/0x1010
[ 388.594900][ C2] ? __pfx_worker_thread+0x10/0x10
[ 388.595157][ C2] kthread+0x28f/0x360
[ 388.595366][ C2] ? __pfx_kthread+0x10/0x10
[ 388.595595][ C2] ret_from_fork+0x31/0x70
[ 388.595821][ C2] ? __pfx_kthread+0x10/0x10
[ 388.596053][ C2] ret_from_fork_asm+0x1b/0x30
[ 388.596299][ C2]
[ 391.851936][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 391.852307][ C2] rcu: 2-....: (259708 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=64581
[ 391.852842][ C2] rcu: (t=260099 jiffies g=119533 q=6099 ncpus=4)
[ 391.853167][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 391.853632][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 391.854239][ C2] Workqueue: netns cleanup_net
[ 391.854484][ C2] RIP: 0010:report_enabled+0x19/0x30
[ 391.854751][ C2] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 05 b9 a9 a4 05 48 d1 e8 83 e0 01 75 0d f0 48 0f ba 2d a7 a9 a4 05 00 <0f> 93 c0 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40
[ 391.855708][ C2] RSP: 0018:ffffc900000bf1e0 EFLAGS: 00000247
[ 391.856013][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb35b0
[ 391.856405][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 391.856796][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 391.857191][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 391.857586][ C2] R13: ffffffffaeeb35b0 R14: 0000000000000004 R15: ffff888001c02640
[ 391.857978][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 391.858417][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 391.858744][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 391.859141][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 391.859549][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 391.859939][ C2] PKRU: 55555554
[ 391.860118][ C2] Call Trace:
[ 391.860288][ C2]
[ 391.860434][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 391.860702][ C2] ? print_cpu_stall+0x263/0x6a0
[ 391.860952][ C2] ? check_cpu_stall+0x284/0x500
[ 391.861201][ C2] ? rcu_pending+0x92/0x360
[ 391.861429][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 391.861694][ C2] ? update_process_times+0xb9/0x110
[ 391.861960][ C2] ? tick_sched_handle+0x67/0x130
[ 391.862211][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 391.862491][ C2] ? __run_hrtimer+0x1c0/0x710
[ 391.862731][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 391.863040][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 391.863308][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 391.863594][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 391.863855][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 391.864157][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 391.864415][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 391.864720][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 391.865012][ C2]
[ 391.865161][ C2]
[ 391.865309][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 391.865619][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 391.865903][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 391.866190][ C2] ? report_enabled+0x19/0x30
[ 391.866426][ C2] kasan_report+0x41/0xf0
[ 391.866646][ C2] kasan_check_range+0x39/0x1c0
[ 391.866892][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 391.867169][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 391.867477][ C2] ? __pfx___schedule+0x10/0x10
[ 391.867722][ C2] do_raw_spin_lock+0x1ec/0x270
[ 391.867970][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 391.868237][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 391.868519][ C2] ? lock_acquire+0x1c1/0x220
[ 391.868770][ C2] ? __mutex_lock+0x33e/0xb10
[ 391.869007][ C2] ? __mutex_lock+0x811/0xb10
[ 391.869243][ C2] _raw_spin_lock+0x67/0x80
[ 391.869520][ C2] __mutex_lock+0x33e/0xb10
[ 391.869851][ C2] ? __lock_release+0x40f/0x880
[ 391.870147][ C2] ? __pfx___lock_release+0x10/0x10
[ 391.870536][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 391.870962][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 391.871340][ C2] ? __pfx___up_read+0x10/0x10
[ 391.871702][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 391.872105][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 391.872507][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 391.872943][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 391.873386][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 391.873813][ C2] __tcf_action_put+0x3d/0xf0
[ 391.874176][ C2] tcf_action_destroy+0x43/0x130
[ 391.874555][ C2] tcf_exts_destroy+0x3c/0xb0
[ 391.874914][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 391.875395][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 391.875809][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 391.876263][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 391.876707][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 391.877139][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 391.877606][ C2] ? __lock_release+0x40f/0x880
[ 391.877980][ C2] ? __mutex_lock+0x26e/0xb10
[ 391.878342][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 391.878768][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 391.879227][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 391.879690][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 391.880063][ C2] tcf_chain_flush+0x1e0/0x320
[ 391.880428][ C2] __tcf_block_put+0x113/0x270
[ 391.880797][ C2] tcf_block_put+0xaf/0xf0
[ 391.881134][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 391.881520][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 391.881925][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 391.882336][ C2] __qdisc_destroy+0xee/0x340
[ 391.882693][ C2] dev_shutdown+0x164/0x350
[ 391.883040][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 391.883519][ C2] ? mutex_is_locked+0x17/0x50
[ 391.883875][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 391.884366][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 391.884811][ C2] default_device_exit_batch+0x234/0x2d0
[ 391.885211][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 391.885608][ C2] ? ops_exit_list+0xb4/0x170
[ 391.885846][ C2] cleanup_net+0x4f3/0xb60
[ 391.886068][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 391.886357][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 391.886605][ C2] ? lock_acquire+0x1c1/0x220
[ 391.886838][ C2] ? process_one_work+0x714/0x1310
[ 391.887096][ C2] process_one_work+0x78c/0x1310
[ 391.887351][ C2] ? hlock_class+0x4e/0x130
[ 391.887581][ C2] ? __pfx_process_one_work+0x10/0x10
[ 391.887851][ C2] ? assign_work+0x16c/0x240
[ 391.888084][ C2] worker_thread+0x73d/0x1010
[ 391.888328][ C2] ? __pfx_worker_thread+0x10/0x10
[ 391.888583][ C2] kthread+0x28f/0x360
[ 391.888789][ C2] ? __pfx_kthread+0x10/0x10
[ 391.889020][ C2] ret_from_fork+0x31/0x70
[ 391.889272][ C2] ? __pfx_kthread+0x10/0x10
[ 391.889514][ C2] ret_from_fork_asm+0x1b/0x30
[ 391.889758][ C2]
[ 416.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 268s! [kworker/u8:0:11]
[ 416.564086][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 416.564499][ C2] irq event stamp: 753065
[ 416.564716][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 416.565182][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 416.565649][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 416.566115][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 416.566573][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 416.567041][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 416.567647][ C2] Workqueue: netns cleanup_net
[ 416.567890][ C2] RIP: 0010:kasan_report+0x19/0xf0
[ 416.568152][ C2] Code: 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca <65> 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 85 c0 0f 85 b7 00
[ 416.569112][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000282
[ 416.569425][ C2] RAX: 00000000000000fb RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 416.569817][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 416.570211][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 416.570605][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 416.571001][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 416.571394][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 416.571835][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 416.572163][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 416.572559][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 416.572953][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 416.573347][ C2] PKRU: 55555554
[ 416.573526][ C2] Call Trace:
[ 416.573695][ C2]
[ 416.573842][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 416.574103][ C2] ? __run_hrtimer+0x1c0/0x710
[ 416.574344][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 416.574616][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 416.574885][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 416.575171][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 416.575433][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 416.575735][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 416.575993][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 416.576297][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 416.576588][ C2]
[ 416.576737][ C2]
[ 416.576885][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 416.577198][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 416.577490][ C2] ? kasan_report+0x19/0xf0
[ 416.577721][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 416.578004][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 416.578311][ C2] ? __pfx___schedule+0x10/0x10
[ 416.578558][ C2] do_raw_spin_lock+0x1ec/0x270
[ 416.578807][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 416.579074][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 416.579382][ C2] ? lock_acquire+0x1c1/0x220
[ 416.579618][ C2] ? __mutex_lock+0x33e/0xb10
[ 416.579854][ C2] ? __mutex_lock+0x811/0xb10
[ 416.580092][ C2] _raw_spin_lock+0x67/0x80
[ 416.580320][ C2] __mutex_lock+0x33e/0xb10
[ 416.580546][ C2] ? __lock_release+0x40f/0x880
[ 416.580791][ C2] ? __pfx___lock_release+0x10/0x10
[ 416.581051][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 416.581346][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 416.581598][ C2] ? __pfx___up_read+0x10/0x10
[ 416.581839][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 416.582109][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 416.582375][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 416.582664][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 416.582955][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 416.583239][ C2] __tcf_action_put+0x3d/0xf0
[ 416.583476][ C2] tcf_action_destroy+0x43/0x130
[ 416.583725][ C2] tcf_exts_destroy+0x3c/0xb0
[ 416.583962][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 416.584280][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 416.584550][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 416.584848][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 416.585138][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 416.585423][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 416.585730][ C2] ? __lock_release+0x40f/0x880
[ 416.585975][ C2] ? __mutex_lock+0x26e/0xb10
[ 416.586214][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 416.586493][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 416.586798][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 416.587101][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 416.587348][ C2] tcf_chain_flush+0x1e0/0x320
[ 416.587591][ C2] __tcf_block_put+0x113/0x270
[ 416.587832][ C2] tcf_block_put+0xaf/0xf0
[ 416.588058][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 416.588317][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 416.588585][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 416.588860][ C2] __qdisc_destroy+0xee/0x340
[ 416.589097][ C2] dev_shutdown+0x164/0x350
[ 416.589337][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 416.589656][ C2] ? mutex_is_locked+0x17/0x50
[ 416.589898][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 416.590234][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 416.590547][ C2] default_device_exit_batch+0x234/0x2d0
[ 416.590826][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 416.591135][ C2] ? ops_exit_list+0xb4/0x170
[ 416.591372][ C2] cleanup_net+0x4f3/0xb60
[ 416.591597][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 416.591878][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 416.592129][ C2] ? lock_acquire+0x1c1/0x220
[ 416.592365][ C2] ? process_one_work+0x714/0x1310
[ 416.592623][ C2] process_one_work+0x78c/0x1310
[ 416.592875][ C2] ? hlock_class+0x4e/0x130
[ 416.593102][ C2] ? __pfx_process_one_work+0x10/0x10
[ 416.593376][ C2] ? assign_work+0x16c/0x240
[ 416.593608][ C2] worker_thread+0x73d/0x1010
[ 416.593848][ C2] ? __pfx_worker_thread+0x10/0x10
[ 416.594107][ C2] kthread+0x28f/0x360
[ 416.594313][ C2] ? __pfx_kthread+0x10/0x10
[ 416.594548][ C2] ret_from_fork+0x31/0x70
[ 416.594774][ C2] ? __pfx_kthread+0x10/0x10
[ 416.595008][ C2] ret_from_fork_asm+0x1b/0x30
[ 416.595254][ C2]
[ 444.563631][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 295s! [kworker/u8:0:11]
[ 444.564091][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 444.564516][ C2] irq event stamp: 753065
[ 444.564734][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 444.565204][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 444.565672][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 444.566139][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 444.566600][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 444.567072][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 444.567682][ C2] Workqueue: netns cleanup_net
[ 444.567927][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 444.568250][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 444.569224][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 444.569528][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 444.569926][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 444.570324][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 444.570721][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 444.571117][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 444.571514][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 444.571959][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 444.572290][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 444.572689][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 444.573084][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 444.573483][ C2] PKRU: 55555554
[ 444.573663][ C2] Call Trace:
[ 444.573832][ C2]
[ 444.573981][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 444.574247][ C2] ? __run_hrtimer+0x1c0/0x710
[ 444.574487][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 444.574766][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 444.575037][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 444.575323][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 444.575588][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 444.575890][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 444.576152][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 444.576461][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 444.576754][ C2]
[ 444.576902][ C2]
[ 444.577053][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 444.577365][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 444.577660][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 444.577956][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 444.578267][ C2] ? __pfx___schedule+0x10/0x10
[ 444.578514][ C2] do_raw_spin_lock+0x1ec/0x270
[ 444.578762][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 444.579038][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 444.579330][ C2] ? lock_acquire+0x1c1/0x220
[ 444.579568][ C2] ? __mutex_lock+0x33e/0xb10
[ 444.579805][ C2] ? __mutex_lock+0x811/0xb10
[ 444.580042][ C2] _raw_spin_lock+0x67/0x80
[ 444.580272][ C2] __mutex_lock+0x33e/0xb10
[ 444.580501][ C2] ? __lock_release+0x40f/0x880
[ 444.580745][ C2] ? __pfx___lock_release+0x10/0x10
[ 444.581008][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 444.581301][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 444.581555][ C2] ? __pfx___up_read+0x10/0x10
[ 444.581797][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 444.582064][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 444.582333][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 444.582624][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 444.582916][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 444.583200][ C2] __tcf_action_put+0x3d/0xf0
[ 444.583439][ C2] tcf_action_destroy+0x43/0x130
[ 444.583688][ C2] tcf_exts_destroy+0x3c/0xb0
[ 444.583924][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 444.584241][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 444.584512][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 444.584810][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 444.585102][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 444.585398][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 444.585707][ C2] ? __lock_release+0x40f/0x880
[ 444.585952][ C2] ? __mutex_lock+0x26e/0xb10
[ 444.586189][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 444.586471][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 444.586774][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 444.587079][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 444.587325][ C2] tcf_chain_flush+0x1e0/0x320
[ 444.587574][ C2] __tcf_block_put+0x113/0x270
[ 444.587817][ C2] tcf_block_put+0xaf/0xf0
[ 444.588048][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 444.588306][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 444.588575][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 444.588849][ C2] __qdisc_destroy+0xee/0x340
[ 444.589097][ C2] dev_shutdown+0x164/0x350
[ 444.589327][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 444.589646][ C2] ? mutex_is_locked+0x17/0x50
[ 444.589888][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 444.590225][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 444.590538][ C2] default_device_exit_batch+0x234/0x2d0
[ 444.590820][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 444.591130][ C2] ? ops_exit_list+0xb4/0x170
[ 444.591368][ C2] cleanup_net+0x4f3/0xb60
[ 444.591593][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 444.591875][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 444.592125][ C2] ? lock_acquire+0x1c1/0x220
[ 444.592362][ C2] ? process_one_work+0x714/0x1310
[ 444.592621][ C2] process_one_work+0x78c/0x1310
[ 444.592872][ C2] ? hlock_class+0x4e/0x130
[ 444.593102][ C2] ? __pfx_process_one_work+0x10/0x10
[ 444.593375][ C2] ? assign_work+0x16c/0x240
[ 444.593607][ C2] worker_thread+0x73d/0x1010
[ 444.593846][ C2] ? __pfx_worker_thread+0x10/0x10
[ 444.594102][ C2] kthread+0x28f/0x360
[ 444.594309][ C2] ? __pfx_kthread+0x10/0x10
[ 444.594541][ C2] ret_from_fork+0x31/0x70
[ 444.594767][ C2] ? __pfx_kthread+0x10/0x10
[ 444.594998][ C2] ret_from_fork_asm+0x1b/0x30
[ 444.595244][ C2]
[ 460.103983][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 328045 jiffies s: 4309 root: 0x4/.
[ 460.104655][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 460.105027][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 460.105311][ C2] NMI backtrace for cpu 2
[ 460.105319][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 460.105324][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 460.105327][ C2] Workqueue: netns cleanup_net
[ 460.105336][ C2] RIP: 0010:kasan_report+0x29/0xf0
[ 460.105342][ C2] Code: 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca 65 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 <85> c0 0f 85 b7 00 00 00 48 89 fd 49 89 f6 89 d3 49 89 cd e8 0f f7
[ 460.105344][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000282
[ 460.105347][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 460.105349][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 460.105351][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 460.105352][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 460.105354][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: ffff888001c02640
[ 460.105356][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 460.105358][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 460.105362][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 460.105363][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 460.105365][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 460.105366][ C2] PKRU: 55555554
[ 460.105367][ C2] Call Trace:
[ 460.105370][ C2]
[ 460.105374][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 460.105379][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 460.105384][ C2] ? nmi_handle+0x153/0x420
[ 460.105388][ C2] ? default_do_nmi+0x41/0x100
[ 460.105393][ C2] ? exc_nmi+0xf3/0x120
[ 460.105395][ C2] ? end_repeat_nmi+0xf/0x60
[ 460.105399][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 460.105404][ C2] ? kasan_report+0x29/0xf0
[ 460.105407][ C2] ? kasan_report+0x29/0xf0
[ 460.105410][ C2] ? kasan_report+0x29/0xf0
[ 460.105413][ C2]
[ 460.105414][ C2]
[ 460.105416][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 460.105420][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 460.105425][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 460.105429][ C2] ? __pfx___schedule+0x10/0x10
[ 460.105434][ C2] do_raw_spin_lock+0x1ec/0x270
[ 460.105439][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 460.105442][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 460.105445][ C2] ? lock_acquire+0x1c1/0x220
[ 460.105448][ C2] ? __mutex_lock+0x33e/0xb10
[ 460.105452][ C2] ? __mutex_lock+0x811/0xb10
[ 460.105454][ C2] _raw_spin_lock+0x67/0x80
[ 460.105458][ C2] __mutex_lock+0x33e/0xb10
[ 460.105461][ C2] ? __lock_release+0x40f/0x880
[ 460.105464][ C2] ? __pfx___lock_release+0x10/0x10
[ 460.105466][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 460.105471][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 460.105474][ C2] ? __pfx___up_read+0x10/0x10
[ 460.105478][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 460.105481][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 460.105485][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 460.105491][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 460.105494][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 460.105498][ C2] __tcf_action_put+0x3d/0xf0
[ 460.105502][ C2] tcf_action_destroy+0x43/0x130
[ 460.105506][ C2] tcf_exts_destroy+0x3c/0xb0
[ 460.105509][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 460.105521][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 460.105529][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 460.105538][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 460.105547][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 460.105556][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 460.105564][ C2] ? __lock_release+0x40f/0x880
[ 460.105567][ C2] ? __mutex_lock+0x26e/0xb10
[ 460.105571][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 460.105580][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 460.105588][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 460.105593][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 460.105597][ C2] tcf_chain_flush+0x1e0/0x320
[ 460.105600][ C2] __tcf_block_put+0x113/0x270
[ 460.105605][ C2] tcf_block_put+0xaf/0xf0
[ 460.105607][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 460.105611][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 460.105618][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 460.105624][ C2] __qdisc_destroy+0xee/0x340
[ 460.105628][ C2] dev_shutdown+0x164/0x350
[ 460.105632][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 460.105637][ C2] ? mutex_is_locked+0x17/0x50
[ 460.105639][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 460.105642][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 460.105646][ C2] default_device_exit_batch+0x234/0x2d0
[ 460.105649][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 460.105652][ C2] ? ops_exit_list+0xb4/0x170
[ 460.105655][ C2] cleanup_net+0x4f3/0xb60
[ 460.105658][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 460.105661][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 460.105664][ C2] ? lock_acquire+0x1c1/0x220
[ 460.105666][ C2] ? process_one_work+0x714/0x1310
[ 460.105671][ C2] process_one_work+0x78c/0x1310
[ 460.105675][ C2] ? hlock_class+0x4e/0x130
[ 460.105678][ C2] ? __pfx_process_one_work+0x10/0x10
[ 460.105682][ C2] ? assign_work+0x16c/0x240
[ 460.105685][ C2] worker_thread+0x73d/0x1010
[ 460.105690][ C2] ? __pfx_worker_thread+0x10/0x10
[ 460.105693][ C2] kthread+0x28f/0x360
[ 460.105696][ C2] ? __pfx_kthread+0x10/0x10
[ 460.105698][ C2] ret_from_fork+0x31/0x70
[ 460.105701][ C2] ? __pfx_kthread+0x10/0x10
[ 460.105703][ C2] ret_from_fork_asm+0x1b/0x30
[ 460.105711][ C2]
[ 469.889940][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 469.890484][ C2] rcu: 2-....: (337621 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=84054
[ 469.891264][ C2] rcu: (t=338137 jiffies g=119533 q=6102 ncpus=4)
[ 469.891757][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 469.892452][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 469.893354][ C2] Workqueue: netns cleanup_net
[ 469.893721][ C2] RIP: 0010:kasan_check_range+0x156/0x1c0
[ 469.894153][ C2] Code: d0 74 11 80 38 00 74 ef 4d 8d 1c 2c 48 89 c2 48 85 c0 75 b0 48 89 da 4c 89 d8 4c 29 da e9 49 ff ff ff 48 85 d2 74 b3 48 01 ea 09 48 83 c0 01 48 39 d0 74 a5 80 38 00 74 f2 e9 74 ff ff ff b8
[ 469.895607][ C2] RSP: 0018:ffffc900000bf290 EFLAGS: 00000282
[ 469.896061][ C2] RAX: ffffed100701fa01 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 469.896673][ C2] RDX: ffffed100701fa02 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 469.897263][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 469.897851][ C2] R10: ffff8880380fd00b R11: 205d313154202020 R12: 0000000000000003
[ 469.898431][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 469.899027][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 469.899690][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 469.900186][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 469.900782][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 469.901383][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 469.901980][ C2] PKRU: 55555554
[ 469.902253][ C2] Call Trace:
[ 469.902510][ C2]
[ 469.902720][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 469.903122][ C2] ? print_cpu_stall+0x263/0x6a0
[ 469.903494][ C2] ? check_cpu_stall+0x284/0x500
[ 469.903861][ C2] ? rcu_pending+0x92/0x360
[ 469.904210][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 469.904616][ C2] ? update_process_times+0xb9/0x110
[ 469.905009][ C2] ? tick_sched_handle+0x67/0x130
[ 469.905386][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 469.905808][ C2] ? __run_hrtimer+0x1c0/0x710
[ 469.906167][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 469.906635][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 469.907051][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 469.907483][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 469.907881][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 469.908334][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 469.908736][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 469.909217][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 469.909658][ C2]
[ 469.909872][ C2]
[ 469.910096][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 469.910559][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 469.910994][ C2] ? kasan_check_range+0x156/0x1c0
[ 469.911375][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 469.911792][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 469.912255][ C2] ? __pfx___schedule+0x10/0x10
[ 469.912630][ C2] do_raw_spin_lock+0x1ec/0x270
[ 469.912999][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 469.913415][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 469.913850][ C2] ? lock_acquire+0x1c1/0x220
[ 469.914215][ C2] ? __mutex_lock+0x33e/0xb10
[ 469.914576][ C2] ? __mutex_lock+0x811/0xb10
[ 469.914930][ C2] _raw_spin_lock+0x67/0x80
[ 469.915265][ C2] __mutex_lock+0x33e/0xb10
[ 469.915593][ C2] ? __lock_release+0x40f/0x880
[ 469.915942][ C2] ? __pfx___lock_release+0x10/0x10
[ 469.916334][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 469.916787][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 469.917164][ C2] ? __pfx___up_read+0x10/0x10
[ 469.917508][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 469.917880][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 469.918263][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 469.918675][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 469.919105][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 469.919504][ C2] __tcf_action_put+0x3d/0xf0
[ 469.919836][ C2] tcf_action_destroy+0x43/0x130
[ 469.920199][ C2] tcf_exts_destroy+0x3c/0xb0
[ 469.920563][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 469.921036][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 469.921425][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 469.921838][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 469.922256][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 469.922654][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 469.923092][ C2] ? __lock_release+0x40f/0x880
[ 469.923451][ C2] ? __mutex_lock+0x26e/0xb10
[ 469.923805][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 469.924234][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 469.924699][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 469.925161][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 469.925534][ C2] tcf_chain_flush+0x1e0/0x320
[ 469.925896][ C2] __tcf_block_put+0x113/0x270
[ 469.926262][ C2] tcf_block_put+0xaf/0xf0
[ 469.926589][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 469.926964][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 469.927365][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 469.927768][ C2] __qdisc_destroy+0xee/0x340
[ 469.928123][ C2] dev_shutdown+0x164/0x350
[ 469.928474][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 469.928954][ C2] ? mutex_is_locked+0x17/0x50
[ 469.929313][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 469.929816][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 469.930285][ C2] default_device_exit_batch+0x234/0x2d0
[ 469.930704][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 469.931173][ C2] ? ops_exit_list+0xb4/0x170
[ 469.931536][ C2] cleanup_net+0x4f3/0xb60
[ 469.931881][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 469.932307][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 469.932693][ C2] ? lock_acquire+0x1c1/0x220
[ 469.933049][ C2] ? process_one_work+0x714/0x1310
[ 469.933433][ C2] process_one_work+0x78c/0x1310
[ 469.933796][ C2] ? hlock_class+0x4e/0x130
[ 469.934138][ C2] ? __pfx_process_one_work+0x10/0x10
[ 469.934538][ C2] ? assign_work+0x16c/0x240
[ 469.934885][ C2] worker_thread+0x73d/0x1010
[ 469.935245][ C2] ? __pfx_worker_thread+0x10/0x10
[ 469.935625][ C2] kthread+0x28f/0x360
[ 469.935937][ C2] ? __pfx_kthread+0x10/0x10
[ 469.936285][ C2] ret_from_fork+0x31/0x70
[ 469.936630][ C2] ? __pfx_kthread+0x10/0x10
[ 469.936980][ C2] ret_from_fork_asm+0x1b/0x30
[ 469.937345][ C2]
[ 492.871981][ T41] INFO: task kworker/1:1:47 blocked for more than 245 seconds.
[ 492.872454][ T41] Tainted: G B L 6.8.0-rc2-virtme #1
[ 492.872834][ T41] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 492.873317][ T41] task:kworker/1:1 state:D stack:26880 pid:47 tgid:47 ppid:2 flags:0x00004000
[ 492.873870][ T41] Workqueue: events linkwatch_event
[ 492.874168][ T41] Call Trace:
[ 492.874349][ T41]
[ 492.874503][ T41] __schedule+0x705/0x1ac0
[ 492.874757][ T41] ? __pfx___schedule+0x10/0x10
[ 492.875017][ T41] ? __pfx___lock_release+0x10/0x10
[ 492.875315][ T41] ? hlock_class+0x4e/0x130
[ 492.875582][ T41] ? mark_held_locks+0xa5/0xf0
[ 492.875825][ T41] ? schedule+0x1fe/0x280
[ 492.876080][ T41] schedule+0xeb/0x280
[ 492.876298][ T41] schedule_preempt_disabled+0x15/0x30
[ 492.876576][ T41] __mutex_lock+0x5e4/0xb10
[ 492.876831][ T41] ? lock_acquire.part.0+0xe5/0x330
[ 492.877134][ T41] ? process_one_work+0x714/0x1310
[ 492.877403][ T41] ? linkwatch_event+0xe/0x60
[ 492.877656][ T41] ? __pfx___mutex_lock+0x10/0x10
[ 492.877917][ T41] ? __pfx___lock_release+0x10/0x10
[ 492.878216][ T41] ? lock_acquire+0x1c1/0x220
[ 492.878471][ T41] ? linkwatch_event+0xe/0x60
[ 492.878714][ T41] linkwatch_event+0xe/0x60
[ 492.878992][ T41] process_one_work+0x78c/0x1310
[ 492.879257][ T41] ? hlock_class+0x4e/0x130
[ 492.879518][ T41] ? __pfx_process_one_work+0x10/0x10
[ 492.879822][ T41] ? assign_work+0x16c/0x240
[ 492.880078][ T41] worker_thread+0x73d/0x1010
[ 492.880344][ T41] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370
[ 492.880676][ T41] ? __pfx_worker_thread+0x10/0x10
[ 492.880945][ T41] ? __pfx_worker_thread+0x10/0x10
[ 492.881229][ T41] kthread+0x28f/0x360
[ 492.881438][ T41] ? __pfx_kthread+0x10/0x10
[ 492.881682][ T41] ret_from_fork+0x31/0x70
[ 492.881920][ T41] ? __pfx_kthread+0x10/0x10
[ 492.882165][ T41] ret_from_fork_asm+0x1b/0x30
[ 492.882416][ T41]
[ 492.882585][ T41] INFO: task ip:937 blocked for more than 245 seconds.
[ 492.882928][ T41] Tainted: G B L 6.8.0-rc2-virtme #1
[ 492.883287][ T41] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 492.883761][ T41] task:ip state:D stack:26608 pid:937 tgid:937 ppid:835 flags:0x00004002
[ 492.884305][ T41] Call Trace:
[ 492.884476][ T41]
[ 492.884626][ T41] __schedule+0x705/0x1ac0
[ 492.884858][ T41] ? __pfx___schedule+0x10/0x10
[ 492.885126][ T41] ? do_raw_spin_trylock+0xb9/0x190
[ 492.885398][ T41] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 492.885682][ T41] ? lock_acquire+0x1c1/0x220
[ 492.885920][ T41] ? lock_acquire+0x1c1/0x220
[ 492.886169][ T41] ? schedule+0x163/0x280
[ 492.886396][ T41] schedule+0xeb/0x280
[ 492.886604][ T41] synchronize_rcu_expedited+0x3c8/0x500
[ 492.886896][ T41] ? __pfx_synchronize_rcu_expedited+0x10/0x10
[ 492.887237][ T41] ? __pfx_autoremove_wake_function+0x10/0x10
[ 492.887584][ T41] ? trace_irq_enable.constprop.0+0xd4/0x100
[ 492.887900][ T41] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 492.888205][ T41] ? trace_irq_enable.constprop.0+0xd4/0x100
[ 492.888512][ T41] ? mnt_release_group_id+0x44/0x90
[ 492.888778][ T41] ? __up_write+0x190/0x520
[ 492.889119][ T41] namespace_unlock+0x1a4/0x420
[ 492.889384][ T41] ? umount_tree+0x6ee/0xfb0
[ 492.889639][ T41] ? __pfx_namespace_unlock+0x10/0x10
[ 492.889928][ T41] ? __pfx_umount_tree+0x10/0x10
[ 492.890194][ T41] ? lock_acquire+0x1c1/0x220
[ 492.890436][ T41] do_umount+0x378/0xb10
[ 492.890681][ T41] ? __pfx_do_umount+0x10/0x10
[ 492.890951][ T41] ? user_path_at_empty+0x49/0x60
[ 492.891232][ T41] ? __kasan_slab_free+0x107/0x1c0
[ 492.891505][ T41] path_umount+0x1f6/0x360
[ 492.891736][ T41] __x64_sys_umount+0x10b/0x130
[ 492.892004][ T41] ? __pfx___x64_sys_umount+0x10/0x10
[ 492.892299][ T41] ? do_user_addr_fault+0x46e/0xba0
[ 492.892565][ T41] do_syscall_64+0xc9/0x1e0
[ 492.892812][ T41] entry_SYSCALL_64_after_hwframe+0x6f/0x77
[ 492.893133][ T41] RIP: 0033:0x7fb2529d963b
[ 492.893374][ T41] RSP: 002b:00007ffd1b612618 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[ 492.893812][ T41] RAX: ffffffffffffffda RBX: 000000000046d7b0 RCX: 00007fb2529d963b
[ 492.894226][ T41] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00007ffd1b612620
[ 492.894654][ T41] RBP: 0000000000000003 R08: 0000000000000000 R09: 00007ffd1b6124b0
[ 492.895083][ T41] R10: 00007fb25289f8d0 R11: 0000000000000206 R12: 00007ffd1b6137d0
[ 492.895504][ T41] R13: 0000000000000001 R14: 00007ffd1b614a5d R15: 0000000000000000
[ 492.895954][ T41]
[ 492.896115][ T41] INFO: task kworker/u8:2:938 blocked for more than 122 seconds.
[ 492.896530][ T41] Tainted: G B L 6.8.0-rc2-virtme #1
[ 492.896881][ T41] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 492.897345][ T41] task:kworker/u8:2 state:D stack:29592 pid:938 tgid:938 ppid:2 flags:0x00004000
[ 492.897901][ T41] Workqueue: ipv6_addrconf addrconf_verify_work
[ 492.898242][ T41] Call Trace:
[ 492.898410][ T41]
[ 492.898568][ T41] __schedule+0x705/0x1ac0
[ 492.898824][ T41] ? __pfx___schedule+0x10/0x10
[ 492.899115][ T41] ? __mutex_trylock_common+0x79/0x260
[ 492.899409][ T41] ? do_raw_spin_trylock+0xb9/0x190
[ 492.899681][ T41] ? lock_acquire+0x1c1/0x220
[ 492.899917][ T41] ? schedule+0x163/0x280
[ 492.900155][ T41] schedule+0xeb/0x280
[ 492.900363][ T41] schedule_preempt_disabled+0x15/0x30
[ 492.900640][ T41] __mutex_lock+0x5e4/0xb10
[ 492.900872][ T41] ? addrconf_verify_work+0x12/0x30
[ 492.901160][ T41] ? __pfx___mutex_lock+0x10/0x10
[ 492.901451][ T41] ? addrconf_verify_work+0x12/0x30
[ 492.901717][ T41] addrconf_verify_work+0x12/0x30
[ 492.901980][ T41] process_one_work+0x78c/0x1310
[ 492.902236][ T41] ? __pfx_process_one_work+0x10/0x10
[ 492.902509][ T41] ? assign_work+0x16c/0x240
[ 492.902743][ T41] worker_thread+0x73d/0x1010
[ 492.902986][ T41] ? trace_irq_enable.constprop.0+0xd4/0x100
[ 492.903294][ T41] ? __pfx_worker_thread+0x10/0x10
[ 492.903551][ T41] kthread+0x28f/0x360
[ 492.903760][ T41] ? __pfx_kthread+0x10/0x10
[ 492.904000][ T41] ret_from_fork+0x31/0x70
[ 492.904231][ T41] ? __pfx_kthread+0x10/0x10
[ 492.904463][ T41] ret_from_fork_asm+0x1b/0x30
[ 492.904754][ T41]
[ 492.904914][ T41] INFO: lockdep is turned off.
[ 496.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 343s! [kworker/u8:0:11]
[ 496.564087][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 496.564497][ C2] irq event stamp: 753065
[ 496.564712][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 496.565179][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 496.565641][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 496.566102][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 496.566569][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 496.567035][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 496.567637][ C2] Workqueue: netns cleanup_net
[ 496.567879][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 496.568200][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 496.569171][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 496.569476][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 496.569868][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 496.570266][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 496.570656][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 496.571050][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 496.571441][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 496.571882][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 496.572209][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 496.572604][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 496.573001][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 496.573394][ C2] PKRU: 55555554
[ 496.573572][ C2] Call Trace:
[ 496.573739][ C2]
[ 496.573887][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 496.574146][ C2] ? __run_hrtimer+0x1c0/0x710
[ 496.574387][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 496.574658][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 496.574926][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 496.575210][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 496.575472][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 496.575773][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 496.576032][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 496.576335][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 496.576625][ C2]
[ 496.576773][ C2]
[ 496.576922][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 496.577236][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 496.577524][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 496.577816][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 496.578125][ C2] ? __pfx___schedule+0x10/0x10
[ 496.578373][ C2] do_raw_spin_lock+0x1ec/0x270
[ 496.578621][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 496.578898][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 496.579178][ C2] ? lock_acquire+0x1c1/0x220
[ 496.579414][ C2] ? __mutex_lock+0x33e/0xb10
[ 496.579653][ C2] ? __mutex_lock+0x811/0xb10
[ 496.579889][ C2] _raw_spin_lock+0x67/0x80
[ 496.580117][ C2] __mutex_lock+0x33e/0xb10
[ 496.580346][ C2] ? __lock_release+0x40f/0x880
[ 496.580590][ C2] ? __pfx___lock_release+0x10/0x10
[ 496.580850][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 496.581144][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 496.581395][ C2] ? __pfx___up_read+0x10/0x10
[ 496.581637][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 496.581901][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 496.582169][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 496.582456][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 496.582748][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 496.583028][ C2] __tcf_action_put+0x3d/0xf0
[ 496.583266][ C2] tcf_action_destroy+0x43/0x130
[ 496.583515][ C2] tcf_exts_destroy+0x3c/0xb0
[ 496.583751][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 496.584065][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 496.584335][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 496.584629][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 496.584921][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 496.585204][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 496.585511][ C2] ? __lock_release+0x40f/0x880
[ 496.585756][ C2] ? __mutex_lock+0x26e/0xb10
[ 496.585995][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 496.586273][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 496.586578][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 496.586880][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 496.587125][ C2] tcf_chain_flush+0x1e0/0x320
[ 496.587366][ C2] __tcf_block_put+0x113/0x270
[ 496.587611][ C2] tcf_block_put+0xaf/0xf0
[ 496.587835][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 496.588096][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 496.588366][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 496.588637][ C2] __qdisc_destroy+0xee/0x340
[ 496.588887][ C2] dev_shutdown+0x164/0x350
[ 496.589115][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 496.589434][ C2] ? mutex_is_locked+0x17/0x50
[ 496.589675][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 496.590015][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 496.590327][ C2] default_device_exit_batch+0x234/0x2d0
[ 496.590609][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 496.590918][ C2] ? ops_exit_list+0xb4/0x170
[ 496.591155][ C2] cleanup_net+0x4f3/0xb60
[ 496.591378][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 496.591659][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 496.591907][ C2] ? lock_acquire+0x1c1/0x220
[ 496.592141][ C2] ? process_one_work+0x714/0x1310
[ 496.592400][ C2] process_one_work+0x78c/0x1310
[ 496.592649][ C2] ? hlock_class+0x4e/0x130
[ 496.592878][ C2] ? __pfx_process_one_work+0x10/0x10
[ 496.593149][ C2] ? assign_work+0x16c/0x240
[ 496.593382][ C2] worker_thread+0x73d/0x1010
[ 496.593619][ C2] ? __pfx_worker_thread+0x10/0x10
[ 496.593875][ C2] kthread+0x28f/0x360
[ 496.594081][ C2] ? __pfx_kthread+0x10/0x10
[ 496.594312][ C2] ret_from_fork+0x31/0x70
[ 496.594537][ C2] ? __pfx_kthread+0x10/0x10
[ 496.594768][ C2] ret_from_fork_asm+0x1b/0x30
[ 496.595016][ C2]
[ 524.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 369s! [kworker/u8:0:11]
[ 524.564099][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 524.564535][ C2] irq event stamp: 753065
[ 524.564786][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 524.565268][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 524.565857][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 524.566536][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 524.567230][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 524.567942][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 524.568882][ C2] Workqueue: netns cleanup_net
[ 524.569257][ C2] RIP: 0010:kasan_report+0x16/0xf0
[ 524.569654][ C2] Code: 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 <0f> 01 ca 65 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 85 c0 0f
[ 524.571118][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 524.571562][ C2] RAX: 0000000000000001 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 524.572042][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 524.572446][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 524.572864][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 524.573275][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 524.573666][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 524.574138][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 524.574469][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 524.574893][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 524.575308][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 524.575742][ C2] PKRU: 55555554
[ 524.576017][ C2] Call Trace:
[ 524.576249][ C2]
[ 524.576395][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 524.576676][ C2] ? __run_hrtimer+0x1c0/0x710
[ 524.576925][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 524.577222][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 524.577511][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 524.577813][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 524.578085][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 524.578390][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 524.578648][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 524.578971][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 524.579266][ C2]
[ 524.579414][ C2]
[ 524.579562][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 524.579884][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 524.580177][ C2] ? kasan_report+0x16/0xf0
[ 524.580410][ C2] kasan_check_range+0x39/0x1c0
[ 524.580656][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 524.580943][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 524.581254][ C2] ? __pfx___schedule+0x10/0x10
[ 524.581501][ C2] do_raw_spin_lock+0x1ec/0x270
[ 524.581760][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 524.582033][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 524.582316][ C2] ? lock_acquire+0x1c1/0x220
[ 524.582554][ C2] ? __mutex_lock+0x33e/0xb10
[ 524.582800][ C2] ? __mutex_lock+0x811/0xb10
[ 524.583036][ C2] _raw_spin_lock+0x67/0x80
[ 524.583267][ C2] __mutex_lock+0x33e/0xb10
[ 524.583495][ C2] ? __lock_release+0x40f/0x880
[ 524.583775][ C2] ? __pfx___lock_release+0x10/0x10
[ 524.584055][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 524.584350][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 524.584605][ C2] ? __pfx___up_read+0x10/0x10
[ 524.584859][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 524.585125][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 524.585391][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 524.585688][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 524.585984][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 524.586267][ C2] __tcf_action_put+0x3d/0xf0
[ 524.586526][ C2] tcf_action_destroy+0x43/0x130
[ 524.586786][ C2] tcf_exts_destroy+0x3c/0xb0
[ 524.587042][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 524.587360][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 524.587631][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 524.588035][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 524.588327][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 524.588612][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 524.588939][ C2] ? __lock_release+0x40f/0x880
[ 524.589185][ C2] ? __mutex_lock+0x26e/0xb10
[ 524.589422][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 524.589712][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 524.590017][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 524.590320][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 524.590569][ C2] tcf_chain_flush+0x1e0/0x320
[ 524.590819][ C2] __tcf_block_put+0x113/0x270
[ 524.591063][ C2] tcf_block_put+0xaf/0xf0
[ 524.591288][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 524.591550][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 524.591830][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 524.592118][ C2] __qdisc_destroy+0xee/0x340
[ 524.592359][ C2] dev_shutdown+0x164/0x350
[ 524.592606][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 524.592937][ C2] ? mutex_is_locked+0x17/0x50
[ 524.593198][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 524.593551][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 524.593874][ C2] default_device_exit_batch+0x234/0x2d0
[ 524.594176][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 524.594482][ C2] ? ops_exit_list+0xb4/0x170
[ 524.594729][ C2] cleanup_net+0x4f3/0xb60
[ 524.594958][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 524.595258][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 524.595506][ C2] ? lock_acquire+0x1c1/0x220
[ 524.595768][ C2] ? process_one_work+0x714/0x1310
[ 524.596027][ C2] process_one_work+0x78c/0x1310
[ 524.596298][ C2] ? hlock_class+0x4e/0x130
[ 524.596527][ C2] ? __pfx_process_one_work+0x10/0x10
[ 524.596842][ C2] ? assign_work+0x16c/0x240
[ 524.597074][ C2] worker_thread+0x73d/0x1010
[ 524.597312][ C2] ? __pfx_worker_thread+0x10/0x10
[ 524.597567][ C2] kthread+0x28f/0x360
[ 524.597784][ C2] ? __pfx_kthread+0x10/0x10
[ 524.598016][ C2] ret_from_fork+0x31/0x70
[ 524.598262][ C2] ? __pfx_kthread+0x10/0x10
[ 524.598493][ C2] ret_from_fork_asm+0x1b/0x30
[ 524.598758][ C2]
[ 547.937936][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 547.938313][ C2] rcu: 2-....: (415558 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=103530
[ 547.938859][ C2] rcu: (t=416185 jiffies g=119533 q=6102 ncpus=4)
[ 547.939184][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 547.939656][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 547.940256][ C2] Workqueue: netns cleanup_net
[ 547.940506][ C2] RIP: 0010:kasan_report+0xd2/0xf0
[ 547.940764][ C2] Code: 24 28 4c 89 6c 24 30 e8 7c f5 ff ff 48 8d 7c 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd ff ff ff 34 24 9d <48> 83 c4 70 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc
[ 547.941729][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 547.942033][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb35b0
[ 547.942429][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 547.942825][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 547.943219][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000000
[ 547.943615][ C2] R13: ffffffffaeeb35b0 R14: 0000000000000004 R15: ffff888001c02640
[ 547.944007][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 547.944457][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 547.944787][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 547.945184][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 547.945584][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 547.945977][ C2] PKRU: 55555554
[ 547.946155][ C2] Call Trace:
[ 547.946324][ C2]
[ 547.946479][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 547.946751][ C2] ? print_cpu_stall+0x263/0x6a0
[ 547.947000][ C2] ? check_cpu_stall+0x284/0x500
[ 547.947247][ C2] ? rcu_pending+0x92/0x360
[ 547.947481][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 547.947746][ C2] ? update_process_times+0xb9/0x110
[ 547.948012][ C2] ? tick_sched_handle+0x67/0x130
[ 547.948265][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 547.948573][ C2] ? __run_hrtimer+0x1c0/0x710
[ 547.948813][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 547.949122][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 547.949403][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 547.949688][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 547.949951][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 547.950255][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 547.950517][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 547.950822][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 547.951116][ C2]
[ 547.951264][ C2]
[ 547.951416][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 547.951726][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 547.952015][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 547.952298][ C2] ? kasan_report+0xd2/0xf0
[ 547.952533][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 547.952817][ C2] kasan_check_range+0x39/0x1c0
[ 547.953065][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 547.953351][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 547.953657][ C2] ? __pfx___schedule+0x10/0x10
[ 547.953902][ C2] do_raw_spin_lock+0x1ec/0x270
[ 547.954149][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 547.954424][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 547.954705][ C2] ? lock_acquire+0x1c1/0x220
[ 547.954945][ C2] ? __mutex_lock+0x33e/0xb10
[ 547.955181][ C2] ? __mutex_lock+0x811/0xb10
[ 547.955426][ C2] _raw_spin_lock+0x67/0x80
[ 547.955656][ C2] __mutex_lock+0x33e/0xb10
[ 547.955884][ C2] ? __lock_release+0x40f/0x880
[ 547.956130][ C2] ? __pfx___lock_release+0x10/0x10
[ 547.956396][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 547.956690][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 547.956942][ C2] ? __pfx___up_read+0x10/0x10
[ 547.957184][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 547.957454][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 547.957719][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 547.958010][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 547.958302][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 547.958609][ C2] __tcf_action_put+0x3d/0xf0
[ 547.958849][ C2] tcf_action_destroy+0x43/0x130
[ 547.959098][ C2] tcf_exts_destroy+0x3c/0xb0
[ 547.959336][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 547.959657][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 547.959928][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 547.960226][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 547.960523][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 547.960807][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 547.961116][ C2] ? __lock_release+0x40f/0x880
[ 547.961369][ C2] ? __mutex_lock+0x26e/0xb10
[ 547.961606][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 547.961890][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 547.962194][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 547.962500][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 547.962747][ C2] tcf_chain_flush+0x1e0/0x320
[ 547.962989][ C2] __tcf_block_put+0x113/0x270
[ 547.963236][ C2] tcf_block_put+0xaf/0xf0
[ 547.963464][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 547.963720][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 547.963988][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 547.964261][ C2] __qdisc_destroy+0xee/0x340
[ 547.964506][ C2] dev_shutdown+0x164/0x350
[ 547.964736][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 547.965063][ C2] ? mutex_is_locked+0x17/0x50
[ 547.965304][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 547.965644][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 547.965957][ C2] default_device_exit_batch+0x234/0x2d0
[ 547.966239][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 547.966561][ C2] ? ops_exit_list+0xb4/0x170
[ 547.966800][ C2] cleanup_net+0x4f3/0xb60
[ 547.967028][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 547.967308][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 547.967556][ C2] ? lock_acquire+0x1c1/0x220
[ 547.967792][ C2] ? process_one_work+0x714/0x1310
[ 547.968050][ C2] process_one_work+0x78c/0x1310
[ 547.968299][ C2] ? hlock_class+0x4e/0x130
[ 547.968528][ C2] ? __pfx_process_one_work+0x10/0x10
[ 547.968814][ C2] ? assign_work+0x16c/0x240
[ 547.969047][ C2] worker_thread+0x73d/0x1010
[ 547.969289][ C2] ? __pfx_worker_thread+0x10/0x10
[ 547.969545][ C2] kthread+0x28f/0x360
[ 547.969752][ C2] ? __pfx_kthread+0x10/0x10
[ 547.969984][ C2] ret_from_fork+0x31/0x70
[ 547.970208][ C2] ? __pfx_kthread+0x10/0x10
[ 547.970438][ C2] ret_from_fork_asm+0x1b/0x30
[ 547.970687][ C2]
[ 558.407973][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 426349 jiffies s: 4309 root: 0x4/.
[ 558.408661][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 558.409078][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 558.409375][ C2] NMI backtrace for cpu 2
[ 558.409382][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 558.409386][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 558.409389][ C2] Workqueue: netns cleanup_net
[ 558.409397][ C2] RIP: 0010:kasan_report+0x22/0xf0
[ 558.409403][ C2] Code: 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca 65 4c 8b 3c 25 80 b8 1f 00 <41> 8b 87 e0 17 00 00 85 c0 0f 85 b7 00 00 00 48 89 fd 49 89 f6 89
[ 558.409406][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 558.409408][ C2] RAX: 0000000000000001 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 558.409411][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 558.409412][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 558.409414][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 558.409415][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: ffff888001c02640
[ 558.409417][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 558.409418][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 558.409422][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 558.409423][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 558.409424][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 558.409425][ C2] PKRU: 55555554
[ 558.409427][ C2] Call Trace:
[ 558.409429][ C2]
[ 558.409433][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 558.409439][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 558.409444][ C2] ? nmi_handle+0x153/0x420
[ 558.409448][ C2] ? default_do_nmi+0x41/0x100
[ 558.409453][ C2] ? exc_nmi+0xf3/0x120
[ 558.409456][ C2] ? end_repeat_nmi+0xf/0x60
[ 558.409461][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 558.409465][ C2] ? kasan_report+0x22/0xf0
[ 558.409468][ C2] ? kasan_report+0x22/0xf0
[ 558.409471][ C2] ? kasan_report+0x22/0xf0
[ 558.409474][ C2]
[ 558.409475][ C2]
[ 558.409479][ C2] kasan_check_range+0x39/0x1c0
[ 558.409484][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 558.409488][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 558.409492][ C2] ? __pfx___schedule+0x10/0x10
[ 558.409497][ C2] do_raw_spin_lock+0x1ec/0x270
[ 558.409502][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 558.409505][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 558.409508][ C2] ? lock_acquire+0x1c1/0x220
[ 558.409510][ C2] ? __mutex_lock+0x33e/0xb10
[ 558.409515][ C2] ? __mutex_lock+0x811/0xb10
[ 558.409518][ C2] _raw_spin_lock+0x67/0x80
[ 558.409521][ C2] __mutex_lock+0x33e/0xb10
[ 558.409524][ C2] ? __lock_release+0x40f/0x880
[ 558.409528][ C2] ? __pfx___lock_release+0x10/0x10
[ 558.409530][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 558.409535][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 558.409539][ C2] ? __pfx___up_read+0x10/0x10
[ 558.409543][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 558.409546][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 558.409550][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 558.409556][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 558.409559][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 558.409563][ C2] __tcf_action_put+0x3d/0xf0
[ 558.409567][ C2] tcf_action_destroy+0x43/0x130
[ 558.409570][ C2] tcf_exts_destroy+0x3c/0xb0
[ 558.409573][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 558.409584][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 558.409593][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 558.409601][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 558.409610][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 558.409619][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 558.409627][ C2] ? __lock_release+0x40f/0x880
[ 558.409630][ C2] ? __mutex_lock+0x26e/0xb10
[ 558.409634][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 558.409644][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 558.409652][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 558.409657][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 558.409661][ C2] tcf_chain_flush+0x1e0/0x320
[ 558.409665][ C2] __tcf_block_put+0x113/0x270
[ 558.409669][ C2] tcf_block_put+0xaf/0xf0
[ 558.409672][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 558.409676][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 558.409683][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 558.409689][ C2] __qdisc_destroy+0xee/0x340
[ 558.409693][ C2] dev_shutdown+0x164/0x350
[ 558.409697][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 558.409702][ C2] ? mutex_is_locked+0x17/0x50
[ 558.409704][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 558.409707][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 558.409711][ C2] default_device_exit_batch+0x234/0x2d0
[ 558.409715][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 558.409718][ C2] ? ops_exit_list+0xb4/0x170
[ 558.409721][ C2] cleanup_net+0x4f3/0xb60
[ 558.409723][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 558.409726][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 558.409729][ C2] ? lock_acquire+0x1c1/0x220
[ 558.409731][ C2] ? process_one_work+0x714/0x1310
[ 558.409736][ C2] process_one_work+0x78c/0x1310
[ 558.409740][ C2] ? hlock_class+0x4e/0x130
[ 558.409743][ C2] ? __pfx_process_one_work+0x10/0x10
[ 558.409748][ C2] ? assign_work+0x16c/0x240
[ 558.409751][ C2] worker_thread+0x73d/0x1010
[ 558.409757][ C2] ? __pfx_worker_thread+0x10/0x10
[ 558.409759][ C2] kthread+0x28f/0x360
[ 558.409763][ C2] ? __pfx_kthread+0x10/0x10
[ 558.409765][ C2] ret_from_fork+0x31/0x70
[ 558.409768][ C2] ? __pfx_kthread+0x10/0x10
[ 558.409770][ C2] ret_from_fork_asm+0x1b/0x30
[ 558.409778][ C2]
[ 584.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 425s! [kworker/u8:0:11]
[ 584.564086][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 584.564516][ C2] irq event stamp: 753065
[ 584.564734][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 584.565249][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 584.565731][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 584.566209][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 584.566682][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 584.567148][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 584.567772][ C2] Workqueue: netns cleanup_net
[ 584.568031][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 584.568368][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 584.569378][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 584.569680][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 584.570084][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 584.570507][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 584.570911][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 584.571310][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 584.571725][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 584.572193][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 584.572536][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 584.572961][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 584.573391][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 584.573796][ C2] PKRU: 55555554
[ 584.573982][ C2] Call Trace:
[ 584.574150][ C2]
[ 584.574313][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 584.574575][ C2] ? __run_hrtimer+0x1c0/0x710
[ 584.574833][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 584.575108][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 584.575391][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 584.575683][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 584.575946][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 584.576261][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 584.576540][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 584.576865][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 584.577202][ C2]
[ 584.577351][ C2]
[ 584.577516][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 584.577838][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 584.578138][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 584.578465][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 584.578775][ C2] ? __pfx___schedule+0x10/0x10
[ 584.579023][ C2] do_raw_spin_lock+0x1ec/0x270
[ 584.579275][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 584.579544][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 584.579824][ C2] ? lock_acquire+0x1c1/0x220
[ 584.580062][ C2] ? __mutex_lock+0x33e/0xb10
[ 584.580300][ C2] ? __mutex_lock+0x811/0xb10
[ 584.580535][ C2] _raw_spin_lock+0x67/0x80
[ 584.580762][ C2] __mutex_lock+0x33e/0xb10
[ 584.581023][ C2] ? __lock_release+0x40f/0x880
[ 584.581268][ C2] ? __pfx___lock_release+0x10/0x10
[ 584.581529][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 584.581821][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 584.582075][ C2] ? __pfx___up_read+0x10/0x10
[ 584.582316][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 584.582579][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 584.582846][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 584.583135][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 584.583426][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 584.583708][ C2] __tcf_action_put+0x3d/0xf0
[ 584.583946][ C2] tcf_action_destroy+0x43/0x130
[ 584.584196][ C2] tcf_exts_destroy+0x3c/0xb0
[ 584.584432][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 584.584747][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 584.585053][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 584.585349][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 584.585660][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 584.585972][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 584.586295][ C2] ? __lock_release+0x40f/0x880
[ 584.586558][ C2] ? __mutex_lock+0x26e/0xb10
[ 584.586801][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 584.587100][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 584.587415][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 584.587733][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 584.588006][ C2] tcf_chain_flush+0x1e0/0x320
[ 584.588267][ C2] __tcf_block_put+0x113/0x270
[ 584.588526][ C2] tcf_block_put+0xaf/0xf0
[ 584.588765][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 584.589071][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 584.589386][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 584.589680][ C2] __qdisc_destroy+0xee/0x340
[ 584.589931][ C2] dev_shutdown+0x164/0x350
[ 584.590160][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 584.590484][ C2] ? mutex_is_locked+0x17/0x50
[ 584.590725][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 584.591077][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 584.591399][ C2] default_device_exit_batch+0x234/0x2d0
[ 584.591692][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 584.592018][ C2] ? ops_exit_list+0xb4/0x170
[ 584.592254][ C2] cleanup_net+0x4f3/0xb60
[ 584.592485][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 584.592766][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 584.593047][ C2] ? lock_acquire+0x1c1/0x220
[ 584.593283][ C2] ? process_one_work+0x714/0x1310
[ 584.593558][ C2] process_one_work+0x78c/0x1310
[ 584.593807][ C2] ? hlock_class+0x4e/0x130
[ 584.594068][ C2] ? __pfx_process_one_work+0x10/0x10
[ 584.594337][ C2] ? assign_work+0x16c/0x240
[ 584.594580][ C2] worker_thread+0x73d/0x1010
[ 584.594820][ C2] ? __pfx_worker_thread+0x10/0x10
[ 584.595088][ C2] kthread+0x28f/0x360
[ 584.595295][ C2] ? __pfx_kthread+0x10/0x10
[ 584.595534][ C2] ret_from_fork+0x31/0x70
[ 584.595778][ C2] ? __pfx_kthread+0x10/0x10
[ 584.596036][ C2] ret_from_fork_asm+0x1b/0x30
[ 584.596282][ C2]
[ 612.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 451s! [kworker/u8:0:11]
[ 612.564081][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 612.564502][ C2] irq event stamp: 753065
[ 612.564719][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 612.565181][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 612.565649][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 612.566114][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 612.566574][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 612.567040][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 612.567667][ C2] Workqueue: netns cleanup_net
[ 612.567912][ C2] RIP: 0010:kasan_report+0xd2/0xf0
[ 612.568171][ C2] Code: 24 28 4c 89 6c 24 30 e8 7c f5 ff ff 48 8d 7c 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd ff ff ff 34 24 9d <48> 83 c4 70 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc
[ 612.569142][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 612.569453][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb35b0
[ 612.569846][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 612.570238][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 612.570635][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000000
[ 612.571029][ C2] R13: ffffffffaeeb35b0 R14: 0000000000000004 R15: ffff888001c02640
[ 612.571436][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 612.571976][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 612.572458][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 612.573025][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 612.573606][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 612.574190][ C2] PKRU: 55555554
[ 612.574456][ C2] Call Trace:
[ 612.574709][ C2]
[ 612.574928][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 612.575321][ C2] ? __run_hrtimer+0x1c0/0x710
[ 612.575678][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 612.576087][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 612.576487][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 612.576914][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 612.577305][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 612.577753][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 612.578142][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 612.578609][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 612.579042][ C2]
[ 612.579266][ C2]
[ 612.579486][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 612.579948][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 612.580376][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 612.580805][ C2] ? kasan_report+0xd2/0xf0
[ 612.581150][ C2] kasan_check_range+0x39/0x1c0
[ 612.581512][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 612.581927][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 612.582387][ C2] ? __pfx___schedule+0x10/0x10
[ 612.582754][ C2] do_raw_spin_lock+0x1ec/0x270
[ 612.583120][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 612.583518][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 612.583932][ C2] ? lock_acquire+0x1c1/0x220
[ 612.584262][ C2] ? __mutex_lock+0x33e/0xb10
[ 612.584604][ C2] ? __mutex_lock+0x811/0xb10
[ 612.584948][ C2] _raw_spin_lock+0x67/0x80
[ 612.585218][ C2] __mutex_lock+0x33e/0xb10
[ 612.585485][ C2] ? __lock_release+0x40f/0x880
[ 612.585833][ C2] ? __pfx___lock_release+0x10/0x10
[ 612.586167][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 612.586598][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 612.586950][ C2] ? __pfx___up_read+0x10/0x10
[ 612.587309][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 612.587702][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 612.588102][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 612.588549][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 612.588985][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 612.589406][ C2] __tcf_action_put+0x3d/0xf0
[ 612.589764][ C2] tcf_action_destroy+0x43/0x130
[ 612.590137][ C2] tcf_exts_destroy+0x3c/0xb0
[ 612.590490][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 612.590963][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 612.591368][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 612.591803][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 612.592243][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 612.592668][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 612.593126][ C2] ? __lock_release+0x40f/0x880
[ 612.593494][ C2] ? __mutex_lock+0x26e/0xb10
[ 612.593847][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 612.594270][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 612.594725][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 612.595171][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 612.595528][ C2] tcf_chain_flush+0x1e0/0x320
[ 612.595885][ C2] __tcf_block_put+0x113/0x270
[ 612.596245][ C2] tcf_block_put+0xaf/0xf0
[ 612.596580][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 612.596967][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 612.597370][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 612.597779][ C2] __qdisc_destroy+0xee/0x340
[ 612.598134][ C2] dev_shutdown+0x164/0x350
[ 612.598486][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 612.598958][ C2] ? mutex_is_locked+0x17/0x50
[ 612.599320][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 612.599809][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 612.600261][ C2] default_device_exit_batch+0x234/0x2d0
[ 612.600671][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 612.600979][ C2] ? ops_exit_list+0xb4/0x170
[ 612.601215][ C2] cleanup_net+0x4f3/0xb60
[ 612.601450][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 612.601730][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 612.601979][ C2] ? lock_acquire+0x1c1/0x220
[ 612.602215][ C2] ? process_one_work+0x714/0x1310
[ 612.602480][ C2] process_one_work+0x78c/0x1310
[ 612.602729][ C2] ? hlock_class+0x4e/0x130
[ 612.602958][ C2] ? __pfx_process_one_work+0x10/0x10
[ 612.603228][ C2] ? assign_work+0x16c/0x240
[ 612.603487][ C2] worker_thread+0x73d/0x1010
[ 612.603726][ C2] ? __pfx_worker_thread+0x10/0x10
[ 612.603980][ C2] kthread+0x28f/0x360
[ 612.604186][ C2] ? __pfx_kthread+0x10/0x10
[ 612.604422][ C2] ret_from_fork+0x31/0x70
[ 612.604650][ C2] ? __pfx_kthread+0x10/0x10
[ 612.604878][ C2] ret_from_fork_asm+0x1b/0x30
[ 612.605122][ C2]
[ 615.751975][ T41] INFO: task kworker/1:1:47 blocked for more than 368 seconds.
[ 615.752403][ T41] Tainted: G B L 6.8.0-rc2-virtme #1
[ 615.752765][ T41] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 615.753213][ T41] task:kworker/1:1 state:D stack:26880 pid:47 tgid:47 ppid:2 flags:0x00004000
[ 615.753732][ T41] Workqueue: events linkwatch_event
[ 615.754018][ T41] Call Trace:
[ 615.754192][ T41]
[ 615.754346][ T41] __schedule+0x705/0x1ac0
[ 615.754581][ T41] ? __pfx___schedule+0x10/0x10
[ 615.754830][ T41] ? __pfx___lock_release+0x10/0x10
[ 615.755107][ T41] ? hlock_class+0x4e/0x130
[ 615.755340][ T41] ? mark_held_locks+0xa5/0xf0
[ 615.755603][ T41] ? schedule+0x1fe/0x280
[ 615.755826][ T41] schedule+0xeb/0x280
[ 615.756049][ T41] schedule_preempt_disabled+0x15/0x30
[ 615.756342][ T41] __mutex_lock+0x5e4/0xb10
[ 615.756585][ T41] ? lock_acquire.part.0+0xe5/0x330
[ 615.756851][ T41] ? process_one_work+0x714/0x1310
[ 615.757123][ T41] ? linkwatch_event+0xe/0x60
[ 615.757365][ T41] ? __pfx___mutex_lock+0x10/0x10
[ 615.757622][ T41] ? __pfx___lock_release+0x10/0x10
[ 615.757889][ T41] ? lock_acquire+0x1c1/0x220
[ 615.758137][ T41] ? linkwatch_event+0xe/0x60
[ 615.758400][ T41] linkwatch_event+0xe/0x60
[ 615.758642][ T41] process_one_work+0x78c/0x1310
[ 615.758909][ T41] ? hlock_class+0x4e/0x130
[ 615.759158][ T41] ? __pfx_process_one_work+0x10/0x10
[ 615.759442][ T41] ? assign_work+0x16c/0x240
[ 615.759683][ T41] worker_thread+0x73d/0x1010
[ 615.759959][ T41] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370
[ 615.760308][ T41] ? __pfx_worker_thread+0x10/0x10
[ 615.760579][ T41] ? __pfx_worker_thread+0x10/0x10
[ 615.760837][ T41] kthread+0x28f/0x360
[ 615.761071][ T41] ? __pfx_kthread+0x10/0x10
[ 615.761314][ T41] ret_from_fork+0x31/0x70
[ 615.761552][ T41] ? __pfx_kthread+0x10/0x10
[ 615.761802][ T41] ret_from_fork_asm+0x1b/0x30
[ 615.762072][ T41]
[ 615.762265][ T41] INFO: task ip:937 blocked for more than 368 seconds.
[ 615.762646][ T41] Tainted: G B L 6.8.0-rc2-virtme #1
[ 615.763040][ T41] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 615.763481][ T41] task:ip state:D stack:26608 pid:937 tgid:937 ppid:835 flags:0x00004002
[ 615.764035][ T41] Call Trace:
[ 615.764206][ T41]
[ 615.764359][ T41] __schedule+0x705/0x1ac0
[ 615.764591][ T41] ? __pfx___schedule+0x10/0x10
[ 615.764838][ T41] ? do_raw_spin_trylock+0xb9/0x190
[ 615.765115][ T41] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 615.765412][ T41] ? lock_acquire+0x1c1/0x220
[ 615.765658][ T41] ? lock_acquire+0x1c1/0x220
[ 615.765897][ T41] ? schedule+0x163/0x280
[ 615.766131][ T41] schedule+0xeb/0x280
[ 615.766353][ T41] synchronize_rcu_expedited+0x3c8/0x500
[ 615.766683][ T41] ? __pfx_synchronize_rcu_expedited+0x10/0x10
[ 615.767012][ T41] ? __pfx_autoremove_wake_function+0x10/0x10
[ 615.767340][ T41] ? trace_irq_enable.constprop.0+0xd4/0x100
[ 615.767661][ T41] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 615.767972][ T41] ? trace_irq_enable.constprop.0+0xd4/0x100
[ 615.768318][ T41] ? mnt_release_group_id+0x44/0x90
[ 615.768597][ T41] ? __up_write+0x190/0x520
[ 615.768840][ T41] namespace_unlock+0x1a4/0x420
[ 615.769097][ T41] ? umount_tree+0x6ee/0xfb0
[ 615.769356][ T41] ? __pfx_namespace_unlock+0x10/0x10
[ 615.769629][ T41] ? __pfx_umount_tree+0x10/0x10
[ 615.769883][ T41] ? lock_acquire+0x1c1/0x220
[ 615.770133][ T41] do_umount+0x378/0xb10
[ 615.770352][ T41] ? __pfx_do_umount+0x10/0x10
[ 615.770616][ T41] ? user_path_at_empty+0x49/0x60
[ 615.770884][ T41] ? __kasan_slab_free+0x107/0x1c0
[ 615.771162][ T41] path_umount+0x1f6/0x360
[ 615.771405][ T41] __x64_sys_umount+0x10b/0x130
[ 615.771653][ T41] ? __pfx___x64_sys_umount+0x10/0x10
[ 615.771924][ T41] ? do_user_addr_fault+0x46e/0xba0
[ 615.772202][ T41] do_syscall_64+0xc9/0x1e0
[ 615.772438][ T41] entry_SYSCALL_64_after_hwframe+0x6f/0x77
[ 615.772746][ T41] RIP: 0033:0x7fb2529d963b
[ 615.772996][ T41] RSP: 002b:00007ffd1b612618 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[ 615.773434][ T41] RAX: ffffffffffffffda RBX: 000000000046d7b0 RCX: 00007fb2529d963b
[ 615.773881][ T41] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00007ffd1b612620
[ 615.774298][ T41] RBP: 0000000000000003 R08: 0000000000000000 R09: 00007ffd1b6124b0
[ 615.774705][ T41] R10: 00007fb25289f8d0 R11: 0000000000000206 R12: 00007ffd1b6137d0
[ 615.775109][ T41] R13: 0000000000000001 R14: 00007ffd1b614a5d R15: 0000000000000000
[ 615.775511][ T41]
[ 615.775670][ T41] INFO: task kworker/u8:2:938 blocked for more than 245 seconds.
[ 615.776064][ T41] Tainted: G B L 6.8.0-rc2-virtme #1
[ 615.776417][ T41] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 615.776853][ T41] task:kworker/u8:2 state:D stack:29592 pid:938 tgid:938 ppid:2 flags:0x00004000
[ 615.777377][ T41] Workqueue: ipv6_addrconf addrconf_verify_work
[ 615.777706][ T41] Call Trace:
[ 615.777882][ T41]
[ 615.778043][ T41] __schedule+0x705/0x1ac0
[ 615.778304][ T41] ? __pfx___schedule+0x10/0x10
[ 615.778554][ T41] ? __mutex_trylock_common+0x79/0x260
[ 615.778831][ T41] ? do_raw_spin_trylock+0xb9/0x190
[ 615.779108][ T41] ? lock_acquire+0x1c1/0x220
[ 615.779348][ T41] ? schedule+0x163/0x280
[ 615.779575][ T41] schedule+0xeb/0x280
[ 615.779784][ T41] schedule_preempt_disabled+0x15/0x30
[ 615.780072][ T41] __mutex_lock+0x5e4/0xb10
[ 615.780307][ T41] ? addrconf_verify_work+0x12/0x30
[ 615.780571][ T41] ? __pfx___mutex_lock+0x10/0x10
[ 615.780842][ T41] ? addrconf_verify_work+0x12/0x30
[ 615.781131][ T41] addrconf_verify_work+0x12/0x30
[ 615.781387][ T41] process_one_work+0x78c/0x1310
[ 615.781650][ T41] ? __pfx_process_one_work+0x10/0x10
[ 615.781949][ T41] ? assign_work+0x16c/0x240
[ 615.782203][ T41] worker_thread+0x73d/0x1010
[ 615.782474][ T41] ? trace_irq_enable.constprop.0+0xd4/0x100
[ 615.782797][ T41] ? __pfx_worker_thread+0x10/0x10
[ 615.783071][ T41] kthread+0x28f/0x360
[ 615.783280][ T41] ? __pfx_kthread+0x10/0x10
[ 615.783531][ T41] ret_from_fork+0x31/0x70
[ 615.783778][ T41] ? __pfx_kthread+0x10/0x10
[ 615.784020][ T41] ret_from_fork_asm+0x1b/0x30
[ 615.784277][ T41]
[ 615.784459][ T41] INFO: lockdep is turned off.
[ 625.970937][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 625.971421][ C2] rcu: 2-....: (493461 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=122990
[ 625.972113][ C2] rcu: (t=494218 jiffies g=119533 q=6105 ncpus=4)
[ 625.972537][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 625.973114][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 625.973875][ C2] Workqueue: netns cleanup_net
[ 625.974195][ C2] RIP: 0010:kasan_report+0x22/0xf0
[ 625.974517][ C2] Code: 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca 65 4c 8b 3c 25 80 b8 1f 00 <41> 8b 87 e0 17 00 00 85 c0 0f 85 b7 00 00 00 48 89 fd 49 89 f6 89
[ 625.975735][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000282
[ 625.976123][ C2] RAX: 00000000000000fb RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 625.976591][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 625.977094][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 625.977612][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 625.978027][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: ffff888001c02640
[ 625.978449][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 625.978890][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 625.979235][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 625.979632][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 625.980028][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 625.980420][ C2] PKRU: 55555554
[ 625.980600][ C2] Call Trace:
[ 625.980767][ C2]
[ 625.980915][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 625.981188][ C2] ? print_cpu_stall+0x263/0x6a0
[ 625.981437][ C2] ? check_cpu_stall+0x284/0x500
[ 625.981686][ C2] ? rcu_pending+0x92/0x360
[ 625.981912][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 625.982180][ C2] ? update_process_times+0xb9/0x110
[ 625.982447][ C2] ? tick_sched_handle+0x67/0x130
[ 625.982700][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 625.982981][ C2] ? __run_hrtimer+0x1c0/0x710
[ 625.983220][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 625.983528][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 625.983799][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 625.984085][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 625.984348][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 625.984650][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 625.984909][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 625.985212][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 625.985508][ C2]
[ 625.985655][ C2]
[ 625.985806][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 625.986121][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 625.986413][ C2] ? kasan_report+0x22/0xf0
[ 625.986644][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 625.986936][ C2] ? kasan_report+0xd6/0xf0
[ 625.987165][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 625.987448][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 625.987757][ C2] ? __pfx___schedule+0x10/0x10
[ 625.988007][ C2] do_raw_spin_lock+0x1ec/0x270
[ 625.988273][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 625.988543][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 625.988824][ C2] ? lock_acquire+0x1c1/0x220
[ 625.989061][ C2] ? __mutex_lock+0x33e/0xb10
[ 625.989296][ C2] ? __mutex_lock+0x811/0xb10
[ 625.989533][ C2] _raw_spin_lock+0x67/0x80
[ 625.989762][ C2] __mutex_lock+0x33e/0xb10
[ 625.989990][ C2] ? __lock_release+0x40f/0x880
[ 625.990235][ C2] ? __pfx___lock_release+0x10/0x10
[ 625.990496][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 625.990845][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 625.991150][ C2] ? __pfx___up_read+0x10/0x10
[ 625.991450][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 625.991787][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 625.992054][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 625.992403][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 625.992749][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 625.993098][ C2] __tcf_action_put+0x3d/0xf0
[ 625.993384][ C2] tcf_action_destroy+0x43/0x130
[ 625.993704][ C2] tcf_exts_destroy+0x3c/0xb0
[ 625.994010][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 625.994420][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 625.994768][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 625.995152][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 625.995533][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 625.995908][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 625.996308][ C2] ? __lock_release+0x40f/0x880
[ 625.996628][ C2] ? __mutex_lock+0x26e/0xb10
[ 625.996938][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 625.997300][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 625.997686][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 625.998090][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 625.998424][ C2] tcf_chain_flush+0x1e0/0x320
[ 625.998739][ C2] __tcf_block_put+0x113/0x270
[ 625.999050][ C2] tcf_block_put+0xaf/0xf0
[ 625.999341][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 625.999676][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 626.000028][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 626.000381][ C2] __qdisc_destroy+0xee/0x340
[ 626.000683][ C2] dev_shutdown+0x164/0x350
[ 626.000987][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 626.001401][ C2] ? mutex_is_locked+0x17/0x50
[ 626.001710][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 626.002144][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 626.002525][ C2] default_device_exit_batch+0x234/0x2d0
[ 626.002890][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 626.003271][ C2] ? ops_exit_list+0xb4/0x170
[ 626.003578][ C2] cleanup_net+0x4f3/0xb60
[ 626.003867][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 626.004206][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 626.004538][ C2] ? lock_acquire+0x1c1/0x220
[ 626.004812][ C2] ? process_one_work+0x714/0x1310
[ 626.005072][ C2] process_one_work+0x78c/0x1310
[ 626.005323][ C2] ? hlock_class+0x4e/0x130
[ 626.005551][ C2] ? __pfx_process_one_work+0x10/0x10
[ 626.005824][ C2] ? assign_work+0x16c/0x240
[ 626.006068][ C2] worker_thread+0x73d/0x1010
[ 626.006365][ C2] ? __pfx_worker_thread+0x10/0x10
[ 626.006628][ C2] kthread+0x28f/0x360
[ 626.006834][ C2] ? __pfx_kthread+0x10/0x10
[ 626.007068][ C2] ret_from_fork+0x31/0x70
[ 626.007308][ C2] ? __pfx_kthread+0x10/0x10
[ 626.007590][ C2] ret_from_fork_asm+0x1b/0x30
[ 626.007913][ C2]
[ 652.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 488s! [kworker/u8:0:11]
[ 652.564088][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 652.564502][ C2] irq event stamp: 753065
[ 652.564717][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 652.565184][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 652.565648][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 652.566110][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 652.566568][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 652.567038][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 652.567646][ C2] Workqueue: netns cleanup_net
[ 652.567890][ C2] RIP: 0010:kasan_check_range+0x1b/0x1c0
[ 652.568189][ C2] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 85 f6 0f 84 5e 01 00 00 48 89 f8 41 54 44 0f b6 c2 48 01 f0 55 53 <72> 14 eb 26 cc cc cc 48 b8 ff ff ff ff ff ff ff fe 48 39 c7 77 23
[ 652.569147][ C2] RSP: 0018:ffffc900000bf290 EFLAGS: 00000286
[ 652.569447][ C2] RAX: ffff8880380fd00c RBX: 000000000000000b RCX: ffffffffaeeb35b0
[ 652.569847][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 652.570241][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 652.570634][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 652.571028][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 652.571426][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 652.571870][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 652.572197][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 652.572592][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 652.572993][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 652.573505][ C2] PKRU: 55555554
[ 652.573752][ C2] Call Trace:
[ 652.573940][ C2]
[ 652.574091][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 652.574444][ C2] ? __run_hrtimer+0x1c0/0x710
[ 652.574728][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 652.575085][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 652.575451][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 652.575839][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 652.576202][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 652.576614][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 652.576977][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 652.577404][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 652.577813][ C2]
[ 652.578024][ C2]
[ 652.578189][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 652.578614][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 652.579011][ C2] ? kasan_check_range+0x1b/0x1c0
[ 652.579366][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 652.579747][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 652.580182][ C2] ? __pfx___schedule+0x10/0x10
[ 652.580528][ C2] do_raw_spin_lock+0x1ec/0x270
[ 652.580865][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 652.581246][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 652.581609][ C2] ? lock_acquire+0x1c1/0x220
[ 652.581938][ C2] ? __mutex_lock+0x33e/0xb10
[ 652.582245][ C2] ? __mutex_lock+0x811/0xb10
[ 652.582578][ C2] _raw_spin_lock+0x67/0x80
[ 652.582864][ C2] __mutex_lock+0x33e/0xb10
[ 652.583165][ C2] ? __lock_release+0x40f/0x880
[ 652.583429][ C2] ? __pfx___lock_release+0x10/0x10
[ 652.583691][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 652.583989][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 652.584242][ C2] ? __pfx___up_read+0x10/0x10
[ 652.584562][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 652.584828][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 652.585093][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 652.585382][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 652.585735][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 652.586126][ C2] __tcf_action_put+0x3d/0xf0
[ 652.586376][ C2] tcf_action_destroy+0x43/0x130
[ 652.586647][ C2] tcf_exts_destroy+0x3c/0xb0
[ 652.586964][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 652.587377][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 652.587744][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 652.588170][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 652.588581][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 652.588977][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 652.589407][ C2] ? __lock_release+0x40f/0x880
[ 652.589747][ C2] ? __mutex_lock+0x26e/0xb10
[ 652.590067][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 652.590448][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 652.590875][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 652.591285][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 652.591622][ C2] tcf_chain_flush+0x1e0/0x320
[ 652.591954][ C2] __tcf_block_put+0x113/0x270
[ 652.592290][ C2] tcf_block_put+0xaf/0xf0
[ 652.592600][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 652.592953][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 652.593329][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 652.593707][ C2] __qdisc_destroy+0xee/0x340
[ 652.594000][ C2] dev_shutdown+0x164/0x350
[ 652.594324][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 652.594740][ C2] ? mutex_is_locked+0x17/0x50
[ 652.595069][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 652.595516][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 652.595924][ C2] default_device_exit_batch+0x234/0x2d0
[ 652.596320][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 652.596709][ C2] ? ops_exit_list+0xb4/0x170
[ 652.597033][ C2] cleanup_net+0x4f3/0xb60
[ 652.597340][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 652.597694][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 652.597944][ C2] ? lock_acquire+0x1c1/0x220
[ 652.598207][ C2] ? process_one_work+0x714/0x1310
[ 652.598467][ C2] process_one_work+0x78c/0x1310
[ 652.598733][ C2] ? hlock_class+0x4e/0x130
[ 652.598961][ C2] ? __pfx_process_one_work+0x10/0x10
[ 652.599231][ C2] ? assign_work+0x16c/0x240
[ 652.599463][ C2] worker_thread+0x73d/0x1010
[ 652.599703][ C2] ? __pfx_worker_thread+0x10/0x10
[ 652.599960][ C2] kthread+0x28f/0x360
[ 652.600168][ C2] ? __pfx_kthread+0x10/0x10
[ 652.600401][ C2] ret_from_fork+0x31/0x70
[ 652.600625][ C2] ? __pfx_kthread+0x10/0x10
[ 652.600856][ C2] ret_from_fork_asm+0x1b/0x30
[ 652.601103][ C2]
[ 656.711966][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 524653 jiffies s: 4309 root: 0x4/.
[ 656.712895][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 656.713459][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 656.713866][ C2] NMI backtrace for cpu 2
[ 656.713873][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 656.713879][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 656.713883][ C2] Workqueue: netns cleanup_net
[ 656.713892][ C2] RIP: 0010:__kasan_check_read+0x0/0x20
[ 656.713900][ C2] Code: 48 c7 c7 b0 c2 be af 5b 5d 41 5c e9 9a b3 9b ff 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 8b 0c 24 89 f6 31 d2 e9 af ef ff ff 66 66 2e 0f 1f
[ 656.713904][ C2] RSP: 0018:ffffc900000bf2a8 EFLAGS: 00000202
[ 656.713908][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 656.713911][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 656.713913][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 656.713916][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 656.713918][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 656.713922][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 656.713925][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 656.713930][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 656.713934][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 656.713936][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 656.713938][ C2] PKRU: 55555554
[ 656.713940][ C2] Call Trace:
[ 656.713944][ C2]
[ 656.713948][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 656.713956][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 656.713962][ C2] ? nmi_handle+0x153/0x420
[ 656.713970][ C2] ? default_do_nmi+0x41/0x100
[ 656.713977][ C2] ? exc_nmi+0xf3/0x120
[ 656.713981][ C2] ? end_repeat_nmi+0xf/0x60
[ 656.713989][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 656.713996][ C2] ? __pfx___kasan_check_read+0x10/0x10
[ 656.714002][ C2] ? __pfx___kasan_check_read+0x10/0x10
[ 656.714007][ C2] ? __pfx___kasan_check_read+0x10/0x10
[ 656.714012][ C2]
[ 656.714013][ C2]
[ 656.714015][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 656.714021][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 656.714028][ C2] ? __pfx___schedule+0x10/0x10
[ 656.714035][ C2] do_raw_spin_lock+0x1ec/0x270
[ 656.714041][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 656.714045][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 656.714049][ C2] ? lock_acquire+0x1c1/0x220
[ 656.714052][ C2] ? __mutex_lock+0x33e/0xb10
[ 656.714057][ C2] ? __mutex_lock+0x811/0xb10
[ 656.714061][ C2] _raw_spin_lock+0x67/0x80
[ 656.714065][ C2] __mutex_lock+0x33e/0xb10
[ 656.714070][ C2] ? __lock_release+0x40f/0x880
[ 656.714074][ C2] ? __pfx___lock_release+0x10/0x10
[ 656.714078][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 656.714084][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 656.714089][ C2] ? __pfx___up_read+0x10/0x10
[ 656.714094][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 656.714098][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 656.714104][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 656.714114][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 656.714119][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 656.714124][ C2] __tcf_action_put+0x3d/0xf0
[ 656.714130][ C2] tcf_action_destroy+0x43/0x130
[ 656.714136][ C2] tcf_exts_destroy+0x3c/0xb0
[ 656.714141][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 656.714157][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 656.714171][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 656.714186][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 656.714204][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 656.714221][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 656.714235][ C2] ? __lock_release+0x40f/0x880
[ 656.714241][ C2] ? __mutex_lock+0x26e/0xb10
[ 656.714248][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 656.714265][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 656.714279][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 656.714286][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 656.714294][ C2] tcf_chain_flush+0x1e0/0x320
[ 656.714300][ C2] __tcf_block_put+0x113/0x270
[ 656.714307][ C2] tcf_block_put+0xaf/0xf0
[ 656.714312][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 656.714319][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 656.714332][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 656.714344][ C2] __qdisc_destroy+0xee/0x340
[ 656.714350][ C2] dev_shutdown+0x164/0x350
[ 656.714356][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 656.714363][ C2] ? mutex_is_locked+0x17/0x50
[ 656.714368][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 656.714373][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 656.714381][ C2] default_device_exit_batch+0x234/0x2d0
[ 656.714386][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 656.714392][ C2] ? ops_exit_list+0xb4/0x170
[ 656.714398][ C2] cleanup_net+0x4f3/0xb60
[ 656.714403][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 656.714408][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 656.714414][ C2] ? lock_acquire+0x1c1/0x220
[ 656.714418][ C2] ? process_one_work+0x714/0x1310
[ 656.714425][ C2] process_one_work+0x78c/0x1310
[ 656.714433][ C2] ? hlock_class+0x4e/0x130
[ 656.714438][ C2] ? __pfx_process_one_work+0x10/0x10
[ 656.714444][ C2] ? assign_work+0x16c/0x240
[ 656.714450][ C2] worker_thread+0x73d/0x1010
[ 656.714459][ C2] ? __pfx_worker_thread+0x10/0x10
[ 656.714463][ C2] kthread+0x28f/0x360
[ 656.714468][ C2] ? __pfx_kthread+0x10/0x10
[ 656.714473][ C2] ret_from_fork+0x31/0x70
[ 656.714477][ C2] ? __pfx_kthread+0x10/0x10
[ 656.714480][ C2] ret_from_fork_asm+0x1b/0x30
[ 656.714493][ C2]
[ 684.563644][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 518s! [kworker/u8:0:11]
[ 684.564115][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 684.564542][ C2] irq event stamp: 753065
[ 684.564759][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 684.565227][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 684.565690][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 684.566150][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 684.566611][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 684.567079][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 684.567683][ C2] Workqueue: netns cleanup_net
[ 684.567935][ C2] RIP: 0010:kasan_report+0xd2/0xf0
[ 684.568194][ C2] Code: 24 28 4c 89 6c 24 30 e8 7c f5 ff ff 48 8d 7c 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd ff ff ff 34 24 9d <48> 83 c4 70 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc
[ 684.569157][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 684.569459][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb35b0
[ 684.569854][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 684.570257][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 684.570650][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000000
[ 684.571042][ C2] R13: ffffffffaeeb35b0 R14: 0000000000000004 R15: ffff888001c02640
[ 684.571440][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 684.571880][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 684.572208][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 684.572602][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 684.572995][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 684.573392][ C2] PKRU: 55555554
[ 684.573570][ C2] Call Trace:
[ 684.573738][ C2]
[ 684.573890][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 684.574152][ C2] ? __run_hrtimer+0x1c0/0x710
[ 684.574391][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 684.574666][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 684.574940][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 684.575225][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 684.575487][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 684.575786][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 684.576046][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 684.576374][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 684.576667][ C2]
[ 684.576814][ C2]
[ 684.576964][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 684.577273][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 684.577560][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 684.577855][ C2] ? kasan_report+0xd2/0xf0
[ 684.578087][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 684.578374][ C2] kasan_check_range+0x39/0x1c0
[ 684.578620][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 684.578898][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 684.579208][ C2] ? __pfx___schedule+0x10/0x10
[ 684.579455][ C2] do_raw_spin_lock+0x1ec/0x270
[ 684.579701][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 684.579973][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 684.580252][ C2] ? lock_acquire+0x1c1/0x220
[ 684.580488][ C2] ? __mutex_lock+0x33e/0xb10
[ 684.580728][ C2] ? __mutex_lock+0x811/0xb10
[ 684.580967][ C2] _raw_spin_lock+0x67/0x80
[ 684.581195][ C2] __mutex_lock+0x33e/0xb10
[ 684.581423][ C2] ? __lock_release+0x40f/0x880
[ 684.581675][ C2] ? __pfx___lock_release+0x10/0x10
[ 684.581936][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 684.582236][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 684.582487][ C2] ? __pfx___up_read+0x10/0x10
[ 684.582729][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 684.582994][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 684.583263][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 684.583555][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 684.583847][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 684.584129][ C2] __tcf_action_put+0x3d/0xf0
[ 684.584368][ C2] tcf_action_destroy+0x43/0x130
[ 684.584617][ C2] tcf_exts_destroy+0x3c/0xb0
[ 684.584854][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 684.585179][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 684.585450][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 684.585744][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 684.586036][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 684.586317][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 684.586632][ C2] ? __lock_release+0x40f/0x880
[ 684.586877][ C2] ? __mutex_lock+0x26e/0xb10
[ 684.587117][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 684.587396][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 684.587704][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 684.588023][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 684.588267][ C2] tcf_chain_flush+0x1e0/0x320
[ 684.588508][ C2] __tcf_block_put+0x113/0x270
[ 684.588749][ C2] tcf_block_put+0xaf/0xf0
[ 684.588975][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 684.589233][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 684.589501][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 684.589775][ C2] __qdisc_destroy+0xee/0x340
[ 684.590014][ C2] dev_shutdown+0x164/0x350
[ 684.590243][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 684.590561][ C2] ? mutex_is_locked+0x17/0x50
[ 684.590800][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 684.591138][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 684.591450][ C2] default_device_exit_batch+0x234/0x2d0
[ 684.591733][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 684.592041][ C2] ? ops_exit_list+0xb4/0x170
[ 684.592278][ C2] cleanup_net+0x4f3/0xb60
[ 684.592499][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 684.592781][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 684.593029][ C2] ? lock_acquire+0x1c1/0x220
[ 684.593261][ C2] ? process_one_work+0x714/0x1310
[ 684.593527][ C2] process_one_work+0x78c/0x1310
[ 684.593776][ C2] ? hlock_class+0x4e/0x130
[ 684.594007][ C2] ? __pfx_process_one_work+0x10/0x10
[ 684.594283][ C2] ? assign_work+0x16c/0x240
[ 684.594515][ C2] worker_thread+0x73d/0x1010
[ 684.594754][ C2] ? __pfx_worker_thread+0x10/0x10
[ 684.595010][ C2] kthread+0x28f/0x360
[ 684.595218][ C2] ? __pfx_kthread+0x10/0x10
[ 684.595452][ C2] ret_from_fork+0x31/0x70
[ 684.595676][ C2] ? __pfx_kthread+0x10/0x10
[ 684.595909][ C2] ret_from_fork_asm+0x1b/0x30
[ 684.596157][ C2]
[ 704.008936][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 704.009321][ C2] rcu: 2-....: (571357 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=142462
[ 704.009862][ C2] rcu: (t=572256 jiffies g=119533 q=6108 ncpus=4)
[ 704.010192][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 704.010659][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 704.011267][ C2] Workqueue: netns cleanup_net
[ 704.011515][ C2] RIP: 0010:report_enabled+0x19/0x30
[ 704.011782][ C2] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 05 b9 a9 a4 05 48 d1 e8 83 e0 01 75 0d f0 48 0f ba 2d a7 a9 a4 05 00 <0f> 93 c0 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40
[ 704.012742][ C2] RSP: 0018:ffffc900000bf200 EFLAGS: 00000247
[ 704.013048][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb3f0c
[ 704.013440][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 704.013833][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 704.014230][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 704.014622][ C2] R13: ffffffffaeeb3f0c R14: 0000000000000004 R15: ffff888001c02640
[ 704.015015][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 704.015455][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 704.015782][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 704.016180][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 704.016574][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 704.016967][ C2] PKRU: 55555554
[ 704.017146][ C2] Call Trace:
[ 704.017317][ C2]
[ 704.017462][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 704.017732][ C2] ? print_cpu_stall+0x263/0x6a0
[ 704.017990][ C2] ? check_cpu_stall+0x284/0x500
[ 704.018239][ C2] ? rcu_pending+0x92/0x360
[ 704.018467][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 704.018734][ C2] ? update_process_times+0xb9/0x110
[ 704.019001][ C2] ? tick_sched_handle+0x67/0x130
[ 704.019254][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 704.019536][ C2] ? __run_hrtimer+0x1c0/0x710
[ 704.019775][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 704.020082][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 704.020353][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 704.020638][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 704.020900][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 704.021204][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 704.021464][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 704.021770][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 704.022063][ C2]
[ 704.022212][ C2]
[ 704.022359][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 704.022670][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 704.022966][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 704.023256][ C2] ? report_enabled+0x19/0x30
[ 704.023494][ C2] kasan_report+0x41/0xf0
[ 704.023718][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 704.024001][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 704.024311][ C2] ? __pfx___schedule+0x10/0x10
[ 704.024558][ C2] do_raw_spin_lock+0x1ec/0x270
[ 704.024805][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 704.025074][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 704.025354][ C2] ? lock_acquire+0x1c1/0x220
[ 704.025590][ C2] ? __mutex_lock+0x33e/0xb10
[ 704.025828][ C2] ? __mutex_lock+0x811/0xb10
[ 704.026065][ C2] _raw_spin_lock+0x67/0x80
[ 704.026293][ C2] __mutex_lock+0x33e/0xb10
[ 704.026524][ C2] ? __lock_release+0x40f/0x880
[ 704.026769][ C2] ? __pfx___lock_release+0x10/0x10
[ 704.027031][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 704.027323][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 704.027576][ C2] ? __pfx___up_read+0x10/0x10
[ 704.027840][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 704.028102][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 704.028369][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 704.028656][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 704.028946][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 704.029226][ C2] __tcf_action_put+0x3d/0xf0
[ 704.029464][ C2] tcf_action_destroy+0x43/0x130
[ 704.029714][ C2] tcf_exts_destroy+0x3c/0xb0
[ 704.029949][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 704.030263][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 704.030534][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 704.030828][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 704.031119][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 704.031400][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 704.031707][ C2] ? __lock_release+0x40f/0x880
[ 704.031952][ C2] ? __mutex_lock+0x26e/0xb10
[ 704.032189][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 704.032466][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 704.032769][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 704.033067][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 704.033312][ C2] tcf_chain_flush+0x1e0/0x320
[ 704.033553][ C2] __tcf_block_put+0x113/0x270
[ 704.033794][ C2] tcf_block_put+0xaf/0xf0
[ 704.034017][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 704.034275][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 704.034543][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 704.034814][ C2] __qdisc_destroy+0xee/0x340
[ 704.035052][ C2] dev_shutdown+0x164/0x350
[ 704.035278][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 704.035596][ C2] ? mutex_is_locked+0x17/0x50
[ 704.035836][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 704.036172][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 704.036482][ C2] default_device_exit_batch+0x234/0x2d0
[ 704.036765][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 704.037073][ C2] ? ops_exit_list+0xb4/0x170
[ 704.037307][ C2] cleanup_net+0x4f3/0xb60
[ 704.037530][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 704.037821][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 704.038072][ C2] ? lock_acquire+0x1c1/0x220
[ 704.038307][ C2] ? process_one_work+0x714/0x1310
[ 704.038564][ C2] process_one_work+0x78c/0x1310
[ 704.038813][ C2] ? hlock_class+0x4e/0x130
[ 704.039042][ C2] ? __pfx_process_one_work+0x10/0x10
[ 704.039310][ C2] ? assign_work+0x16c/0x240
[ 704.039543][ C2] worker_thread+0x73d/0x1010
[ 704.039779][ C2] ? __pfx_worker_thread+0x10/0x10
[ 704.040035][ C2] kthread+0x28f/0x360
[ 704.040241][ C2] ? __pfx_kthread+0x10/0x10
[ 704.040471][ C2] ret_from_fork+0x31/0x70
[ 704.040694][ C2] ? __pfx_kthread+0x10/0x10
[ 704.040926][ C2] ret_from_fork_asm+0x1b/0x30
[ 704.041170][ C2]
[ 728.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 559s! [kworker/u8:0:11]
[ 728.564088][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 728.564511][ C2] irq event stamp: 753065
[ 728.564727][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 728.565192][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 728.565661][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 728.566123][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 728.566585][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 728.567051][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 728.567685][ C2] Workqueue: netns cleanup_net
[ 728.567926][ C2] RIP: 0010:kasan_report+0x29/0xf0
[ 728.568185][ C2] Code: 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca 65 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 <85> c0 0f 85 b7 00 00 00 48 89 fd 49 89 f6 89 d3 49 89 cd e8 0f f7
[ 728.569140][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000282
[ 728.569447][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 728.569841][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 728.570233][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 728.570629][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 728.571018][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: ffff888001c02640
[ 728.571418][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 728.571856][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 728.572183][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 728.572583][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 728.572975][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 728.573367][ C2] PKRU: 55555554
[ 728.573551][ C2] Call Trace:
[ 728.573716][ C2]
[ 728.573863][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 728.574121][ C2] ? __run_hrtimer+0x1c0/0x710
[ 728.574360][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 728.574662][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 728.574931][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 728.575215][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 728.575484][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 728.575782][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 728.576041][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 728.576344][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 728.576642][ C2]
[ 728.576788][ C2]
[ 728.576938][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 728.577247][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 728.577544][ C2] ? kasan_report+0x29/0xf0
[ 728.577785][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 728.578065][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 728.578374][ C2] ? __pfx___schedule+0x10/0x10
[ 728.578624][ C2] do_raw_spin_lock+0x1ec/0x270
[ 728.578870][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 728.579138][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 728.579433][ C2] ? lock_acquire+0x1c1/0x220
[ 728.579703][ C2] ? __mutex_lock+0x33e/0xb10
[ 728.579940][ C2] ? __mutex_lock+0x811/0xb10
[ 728.580175][ C2] _raw_spin_lock+0x67/0x80
[ 728.580401][ C2] __mutex_lock+0x33e/0xb10
[ 728.580628][ C2] ? __lock_release+0x40f/0x880
[ 728.580871][ C2] ? __pfx___lock_release+0x10/0x10
[ 728.581130][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 728.581423][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 728.581675][ C2] ? __pfx___up_read+0x10/0x10
[ 728.581913][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 728.582182][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 728.582447][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 728.582731][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 728.583023][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 728.583303][ C2] __tcf_action_put+0x3d/0xf0
[ 728.583540][ C2] tcf_action_destroy+0x43/0x130
[ 728.583788][ C2] tcf_exts_destroy+0x3c/0xb0
[ 728.584024][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 728.584338][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 728.584607][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 728.584902][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 728.585191][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 728.585473][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 728.585778][ C2] ? __lock_release+0x40f/0x880
[ 728.586023][ C2] ? __mutex_lock+0x26e/0xb10
[ 728.586258][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 728.586535][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 728.586837][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 728.587138][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 728.587382][ C2] tcf_chain_flush+0x1e0/0x320
[ 728.587626][ C2] __tcf_block_put+0x113/0x270
[ 728.587867][ C2] tcf_block_put+0xaf/0xf0
[ 728.588093][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 728.588350][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 728.588621][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 728.588890][ C2] __qdisc_destroy+0xee/0x340
[ 728.589128][ C2] dev_shutdown+0x164/0x350
[ 728.589356][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 728.589672][ C2] ? mutex_is_locked+0x17/0x50
[ 728.589911][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 728.590247][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 728.590558][ C2] default_device_exit_batch+0x234/0x2d0
[ 728.590836][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 728.591144][ C2] ? ops_exit_list+0xb4/0x170
[ 728.591380][ C2] cleanup_net+0x4f3/0xb60
[ 728.591601][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 728.591884][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 728.592132][ C2] ? lock_acquire+0x1c1/0x220
[ 728.592365][ C2] ? process_one_work+0x714/0x1310
[ 728.592623][ C2] process_one_work+0x78c/0x1310
[ 728.592872][ C2] ? hlock_class+0x4e/0x130
[ 728.593100][ C2] ? __pfx_process_one_work+0x10/0x10
[ 728.593369][ C2] ? assign_work+0x16c/0x240
[ 728.593601][ C2] worker_thread+0x73d/0x1010
[ 728.593839][ C2] ? __pfx_worker_thread+0x10/0x10
[ 728.594095][ C2] kthread+0x28f/0x360
[ 728.594298][ C2] ? __pfx_kthread+0x10/0x10
[ 728.594530][ C2] ret_from_fork+0x31/0x70
[ 728.594750][ C2] ? __pfx_kthread+0x10/0x10
[ 728.594981][ C2] ret_from_fork_asm+0x1b/0x30
[ 728.595227][ C2]
[ 738.631977][ T41] INFO: task kworker/1:1:47 blocked for more than 491 seconds.
[ 738.632418][ T41] Tainted: G B L 6.8.0-rc2-virtme #1
[ 738.632779][ T41] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 738.633240][ T41] task:kworker/1:1 state:D stack:26880 pid:47 tgid:47 ppid:2 flags:0x00004000
[ 738.633769][ T41] Workqueue: events linkwatch_event
[ 738.634063][ T41] Call Trace:
[ 738.634239][ T41]
[ 738.634406][ T41] __schedule+0x705/0x1ac0
[ 738.634644][ T41] ? __pfx___schedule+0x10/0x10
[ 738.634898][ T41] ? __pfx___lock_release+0x10/0x10
[ 738.635183][ T41] ? hlock_class+0x4e/0x130
[ 738.635420][ T41] ? mark_held_locks+0xa5/0xf0
[ 738.635676][ T41] ? schedule+0x1fe/0x280
[ 738.635903][ T41] schedule+0xeb/0x280
[ 738.636130][ T41] schedule_preempt_disabled+0x15/0x30
[ 738.636409][ T41] __mutex_lock+0x5e4/0xb10
[ 738.636659][ T41] ? lock_acquire.part.0+0xe5/0x330
[ 738.636924][ T41] ? process_one_work+0x714/0x1310
[ 738.637199][ T41] ? linkwatch_event+0xe/0x60
[ 738.637443][ T41] ? __pfx___mutex_lock+0x10/0x10
[ 738.637708][ T41] ? __pfx___lock_release+0x10/0x10
[ 738.637988][ T41] ? lock_acquire+0x1c1/0x220
[ 738.638228][ T41] ? linkwatch_event+0xe/0x60
[ 738.638474][ T41] linkwatch_event+0xe/0x60
[ 738.638707][ T41] process_one_work+0x78c/0x1310
[ 738.638969][ T41] ? hlock_class+0x4e/0x130
[ 738.639201][ T41] ? __pfx_process_one_work+0x10/0x10
[ 738.639473][ T41] ? assign_work+0x16c/0x240
[ 738.639708][ T41] worker_thread+0x73d/0x1010
[ 738.639963][ T41] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370
[ 738.640303][ T41] ? __pfx_worker_thread+0x10/0x10
[ 738.640560][ T41] ? __pfx_worker_thread+0x10/0x10
[ 738.640822][ T41] kthread+0x28f/0x360
[ 738.641040][ T41] ? __pfx_kthread+0x10/0x10
[ 738.641275][ T41] ret_from_fork+0x31/0x70
[ 738.641512][ T41] ? __pfx_kthread+0x10/0x10
[ 738.641759][ T41] ret_from_fork_asm+0x1b/0x30
[ 738.642031][ T41]
[ 738.642212][ T41] INFO: task ip:937 blocked for more than 491 seconds.
[ 738.642554][ T41] Tainted: G B L 6.8.0-rc2-virtme #1
[ 738.642926][ T41] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 738.643440][ T41] task:ip state:D stack:26608 pid:937 tgid:937 ppid:835 flags:0x00004002
[ 738.643972][ T41] Call Trace:
[ 738.644149][ T41]
[ 738.644313][ T41] __schedule+0x705/0x1ac0
[ 738.644547][ T41] ? __pfx___schedule+0x10/0x10
[ 738.644814][ T41] ? do_raw_spin_trylock+0xb9/0x190
[ 738.645106][ T41] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 738.645391][ T41] ? lock_acquire+0x1c1/0x220
[ 738.645639][ T41] ? lock_acquire+0x1c1/0x220
[ 738.645883][ T41] ? schedule+0x163/0x280
[ 738.646121][ T41] schedule+0xeb/0x280
[ 738.646330][ T41] synchronize_rcu_expedited+0x3c8/0x500
[ 738.646626][ T41] ? __pfx_synchronize_rcu_expedited+0x10/0x10
[ 738.646944][ T41] ? __pfx_autoremove_wake_function+0x10/0x10
[ 738.647252][ T41] ? trace_irq_enable.constprop.0+0xd4/0x100
[ 738.647556][ T41] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 738.647855][ T41] ? trace_irq_enable.constprop.0+0xd4/0x100
[ 738.648199][ T41] ? mnt_release_group_id+0x44/0x90
[ 738.648487][ T41] ? __up_write+0x190/0x520
[ 738.648724][ T41] namespace_unlock+0x1a4/0x420
[ 738.648980][ T41] ? umount_tree+0x6ee/0xfb0
[ 738.649220][ T41] ? __pfx_namespace_unlock+0x10/0x10
[ 738.649498][ T41] ? __pfx_umount_tree+0x10/0x10
[ 738.649758][ T41] ? lock_acquire+0x1c1/0x220
[ 738.650026][ T41] do_umount+0x378/0xb10
[ 738.650244][ T41] ? __pfx_do_umount+0x10/0x10
[ 738.650511][ T41] ? user_path_at_empty+0x49/0x60
[ 738.650778][ T41] ? __kasan_slab_free+0x107/0x1c0
[ 738.651066][ T41] path_umount+0x1f6/0x360
[ 738.651317][ T41] __x64_sys_umount+0x10b/0x130
[ 738.651573][ T41] ? __pfx___x64_sys_umount+0x10/0x10
[ 738.651856][ T41] ? do_user_addr_fault+0x46e/0xba0
[ 738.652138][ T41] do_syscall_64+0xc9/0x1e0
[ 738.652396][ T41] entry_SYSCALL_64_after_hwframe+0x6f/0x77
[ 738.652718][ T41] RIP: 0033:0x7fb2529d963b
[ 738.652995][ T41] RSP: 002b:00007ffd1b612618 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[ 738.653426][ T41] RAX: ffffffffffffffda RBX: 000000000046d7b0 RCX: 00007fb2529d963b
[ 738.653837][ T41] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00007ffd1b612620
[ 738.654240][ T41] RBP: 0000000000000003 R08: 0000000000000000 R09: 00007ffd1b6124b0
[ 738.654646][ T41] R10: 00007fb25289f8d0 R11: 0000000000000206 R12: 00007ffd1b6137d0
[ 738.655052][ T41] R13: 0000000000000001 R14: 00007ffd1b614a5d R15: 0000000000000000
[ 738.655464][ T41]
[ 738.655630][ T41] Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
[ 738.656110][ T41] INFO: lockdep is turned off.
[ 755.015989][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 622957 jiffies s: 4309 root: 0x4/.
[ 755.016680][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 755.017067][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 755.017356][ C2] NMI backtrace for cpu 2
[ 755.017366][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 755.017370][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 755.017373][ C2] Workqueue: netns cleanup_net
[ 755.017382][ C2] RIP: 0010:kasan_check_range+0x84/0x1c0
[ 755.017391][ C2] Code: 89 fd 48 b8 00 00 00 00 00 fc ff df 4d 89 d1 48 c1 ed 03 49 c1 e9 03 48 01 c5 49 01 c1 48 89 e8 49 8d 59 01 48 89 da 48 29 ea <48> 83 fa 10 0f 8e c0 00 00 00 41 89 eb 41 83 e3 07 75 7d 48 85 d2
[ 755.017394][ C2] RSP: 0018:ffffc900000bf290 EFLAGS: 00000202
[ 755.017396][ C2] RAX: ffffed100701fa01 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 755.017398][ C2] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 755.017400][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 755.017401][ C2] R10: ffff8880380fd00b R11: 205d313154202020 R12: 0000000000000003
[ 755.017403][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 755.017404][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 755.017406][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 755.017410][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 755.017411][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 755.017413][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 755.017414][ C2] PKRU: 55555554
[ 755.017415][ C2] Call Trace:
[ 755.017417][ C2]
[ 755.017421][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 755.017427][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 755.017432][ C2] ? nmi_handle+0x153/0x420
[ 755.017437][ C2] ? default_do_nmi+0x41/0x100
[ 755.017443][ C2] ? exc_nmi+0xf3/0x120
[ 755.017445][ C2] ? end_repeat_nmi+0xf/0x60
[ 755.017451][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 755.017457][ C2] ? kasan_check_range+0x84/0x1c0
[ 755.017461][ C2] ? kasan_check_range+0x84/0x1c0
[ 755.017466][ C2] ? kasan_check_range+0x84/0x1c0
[ 755.017471][ C2]
[ 755.017472][ C2]
[ 755.017474][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 755.017480][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 755.017496][ C2] ? __pfx___schedule+0x10/0x10
[ 755.017502][ C2] do_raw_spin_lock+0x1ec/0x270
[ 755.017510][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 755.017513][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 755.017516][ C2] ? lock_acquire+0x1c1/0x220
[ 755.017519][ C2] ? __mutex_lock+0x33e/0xb10
[ 755.017524][ C2] ? __mutex_lock+0x811/0xb10
[ 755.017527][ C2] _raw_spin_lock+0x67/0x80
[ 755.017529][ C2] __mutex_lock+0x33e/0xb10
[ 755.017533][ C2] ? __lock_release+0x40f/0x880
[ 755.017536][ C2] ? __pfx___lock_release+0x10/0x10
[ 755.017538][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 755.017544][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 755.017548][ C2] ? __pfx___up_read+0x10/0x10
[ 755.017554][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 755.017558][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 755.017564][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 755.017572][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 755.017575][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 755.017579][ C2] __tcf_action_put+0x3d/0xf0
[ 755.017584][ C2] tcf_action_destroy+0x43/0x130
[ 755.017587][ C2] tcf_exts_destroy+0x3c/0xb0
[ 755.017590][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 755.017601][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 755.017609][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 755.017617][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 755.017626][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 755.017635][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 755.017643][ C2] ? __lock_release+0x40f/0x880
[ 755.017646][ C2] ? __mutex_lock+0x26e/0xb10
[ 755.017650][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 755.017659][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 755.017667][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 755.017672][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 755.017676][ C2] tcf_chain_flush+0x1e0/0x320
[ 755.017679][ C2] __tcf_block_put+0x113/0x270
[ 755.017683][ C2] tcf_block_put+0xaf/0xf0
[ 755.017686][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 755.017690][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 755.017697][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 755.017703][ C2] __qdisc_destroy+0xee/0x340
[ 755.017707][ C2] dev_shutdown+0x164/0x350
[ 755.017710][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 755.017715][ C2] ? mutex_is_locked+0x17/0x50
[ 755.017718][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 755.017721][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 755.017725][ C2] default_device_exit_batch+0x234/0x2d0
[ 755.017728][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 755.017732][ C2] ? ops_exit_list+0xb4/0x170
[ 755.017736][ C2] cleanup_net+0x4f3/0xb60
[ 755.017739][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 755.017742][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 755.017747][ C2] ? lock_acquire+0x1c1/0x220
[ 755.017750][ C2] ? process_one_work+0x714/0x1310
[ 755.017757][ C2] process_one_work+0x78c/0x1310
[ 755.017762][ C2] ? hlock_class+0x4e/0x130
[ 755.017766][ C2] ? __pfx_process_one_work+0x10/0x10
[ 755.017771][ C2] ? assign_work+0x16c/0x240
[ 755.017774][ C2] worker_thread+0x73d/0x1010
[ 755.017779][ C2] ? __pfx_worker_thread+0x10/0x10
[ 755.017782][ C2] kthread+0x28f/0x360
[ 755.017786][ C2] ? __pfx_kthread+0x10/0x10
[ 755.017788][ C2] ret_from_fork+0x31/0x70
[ 755.017792][ C2] ? __pfx_kthread+0x10/0x10
[ 755.017793][ C2] ret_from_fork_asm+0x1b/0x30
[ 755.017804][ C2]
[ 780.563631][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 607s! [kworker/u8:0:11]
[ 780.564296][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 780.564904][ C2] irq event stamp: 753065
[ 780.565229][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 780.565920][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 780.566612][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 780.567196][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 780.567669][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 780.568256][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 780.569095][ C2] Workqueue: netns cleanup_net
[ 780.569429][ C2] RIP: 0010:kasan_report+0x0/0xf0
[ 780.569806][ C2] Code: e8 f5 fd ff ff 48 83 c4 68 5b 5d 41 5c c3 cc cc cc cc 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <66> 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24
[ 780.570956][ C2] RSP: 0018:ffffc900000bf288 EFLAGS: 00000213
[ 780.571410][ C2] RAX: 0000000000000001 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 780.572001][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 780.572588][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 780.573172][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 780.573757][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 780.574345][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 780.575002][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 780.575492][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 780.576086][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 780.576671][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 780.577262][ C2] PKRU: 55555554
[ 780.577541][ C2] Call Trace:
[ 780.577792][ C2]
[ 780.578012][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 780.578399][ C2] ? __run_hrtimer+0x1c0/0x710
[ 780.578747][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 780.579158][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 780.579560][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 780.579983][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 780.580375][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 780.580819][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 780.581209][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 780.581666][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 780.582104][ C2]
[ 780.582325][ C2]
[ 780.582547][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 780.582993][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 780.583282][ C2] ? __pfx_kasan_report+0x10/0x10
[ 780.583540][ C2] kasan_check_range+0x39/0x1c0
[ 780.583792][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 780.584077][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 780.584388][ C2] ? __pfx___schedule+0x10/0x10
[ 780.584636][ C2] do_raw_spin_lock+0x1ec/0x270
[ 780.584890][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 780.585160][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 780.585442][ C2] ? lock_acquire+0x1c1/0x220
[ 780.585677][ C2] ? __mutex_lock+0x33e/0xb10
[ 780.585918][ C2] ? __mutex_lock+0x811/0xb10
[ 780.586156][ C2] _raw_spin_lock+0x67/0x80
[ 780.586381][ C2] __mutex_lock+0x33e/0xb10
[ 780.586611][ C2] ? __lock_release+0x40f/0x880
[ 780.586862][ C2] ? __pfx___lock_release+0x10/0x10
[ 780.587123][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 780.587431][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 780.587683][ C2] ? __pfx___up_read+0x10/0x10
[ 780.587928][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 780.588196][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 780.588461][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 780.588755][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 780.589049][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 780.589332][ C2] __tcf_action_put+0x3d/0xf0
[ 780.589571][ C2] tcf_action_destroy+0x43/0x130
[ 780.589827][ C2] tcf_exts_destroy+0x3c/0xb0
[ 780.590067][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 780.590384][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 780.590655][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 780.590956][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 780.591247][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 780.591530][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 780.591845][ C2] ? __lock_release+0x40f/0x880
[ 780.592091][ C2] ? __mutex_lock+0x26e/0xb10
[ 780.592331][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 780.592612][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 780.592925][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 780.593257][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 780.593599][ C2] tcf_chain_flush+0x1e0/0x320
[ 780.593950][ C2] __tcf_block_put+0x113/0x270
[ 780.594236][ C2] tcf_block_put+0xaf/0xf0
[ 780.594521][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 780.594855][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 780.595225][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 780.595631][ C2] __qdisc_destroy+0xee/0x340
[ 780.595986][ C2] dev_shutdown+0x164/0x350
[ 780.596329][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 780.596807][ C2] ? mutex_is_locked+0x17/0x50
[ 780.597165][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 780.597678][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 780.598145][ C2] default_device_exit_batch+0x234/0x2d0
[ 780.598563][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 780.599027][ C2] ? ops_exit_list+0xb4/0x170
[ 780.599381][ C2] cleanup_net+0x4f3/0xb60
[ 780.599713][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 780.600132][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 780.600503][ C2] ? lock_acquire+0x1c1/0x220
[ 780.600850][ C2] ? process_one_work+0x714/0x1310
[ 780.601237][ C2] process_one_work+0x78c/0x1310
[ 780.601611][ C2] ? hlock_class+0x4e/0x130
[ 780.601953][ C2] ? __pfx_process_one_work+0x10/0x10
[ 780.602355][ C2] ? assign_work+0x16c/0x240
[ 780.602702][ C2] worker_thread+0x73d/0x1010
[ 780.603062][ C2] ? __pfx_worker_thread+0x10/0x10
[ 780.603444][ C2] kthread+0x28f/0x360
[ 780.603751][ C2] ? __pfx_kthread+0x10/0x10
[ 780.604097][ C2] ret_from_fork+0x31/0x70
[ 780.604431][ C2] ? __pfx_kthread+0x10/0x10
[ 780.604776][ C2] ret_from_fork_asm+0x1b/0x30
[ 780.605142][ C2]
[ 782.041937][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 782.042311][ C2] rcu: 2-....: (649259 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=161916
[ 782.042849][ C2] rcu: (t=650289 jiffies g=119533 q=6108 ncpus=4)
[ 782.043201][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 782.043847][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 782.044645][ C2] Workqueue: netns cleanup_net
[ 782.044975][ C2] RIP: 0010:report_enabled+0x19/0x30
[ 782.045372][ C2] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 05 b9 a9 a4 05 48 d1 e8 83 e0 01 75 0d f0 48 0f ba 2d a7 a9 a4 05 00 <0f> 93 c0 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40
[ 782.046802][ C2] RSP: 0018:ffffc900000bf200 EFLAGS: 00000247
[ 782.047258][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb3f0c
[ 782.047855][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 782.048440][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 782.049025][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 782.049614][ C2] R13: ffffffffaeeb3f0c R14: 0000000000000004 R15: ffff888001c02640
[ 782.050200][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 782.050857][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 782.051345][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 782.051936][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 782.052526][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 782.053117][ C2] PKRU: 55555554
[ 782.053387][ C2] Call Trace:
[ 782.053636][ C2]
[ 782.053854][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 782.054255][ C2] ? print_cpu_stall+0x263/0x6a0
[ 782.054610][ C2] ? check_cpu_stall+0x284/0x500
[ 782.054859][ C2] ? rcu_pending+0x92/0x360
[ 782.055087][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 782.055354][ C2] ? update_process_times+0xb9/0x110
[ 782.055723][ C2] ? tick_sched_handle+0x67/0x130
[ 782.056091][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 782.056459][ C2] ? __run_hrtimer+0x1c0/0x710
[ 782.056781][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 782.057246][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 782.057604][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 782.057910][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 782.058262][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 782.058713][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 782.059101][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 782.059557][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 782.059993][ C2]
[ 782.060214][ C2]
[ 782.060435][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 782.060897][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 782.061332][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 782.061767][ C2] ? report_enabled+0x19/0x30
[ 782.062121][ C2] kasan_report+0x41/0xf0
[ 782.062446][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 782.062876][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 782.063295][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 782.063755][ C2] ? __pfx___schedule+0x10/0x10
[ 782.064123][ C2] do_raw_spin_lock+0x1ec/0x270
[ 782.064491][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 782.064889][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 782.065306][ C2] ? lock_acquire+0x1c1/0x220
[ 782.065659][ C2] ? __mutex_lock+0x33e/0xb10
[ 782.066015][ C2] ? __mutex_lock+0x811/0xb10
[ 782.066368][ C2] _raw_spin_lock+0x67/0x80
[ 782.066709][ C2] __mutex_lock+0x33e/0xb10
[ 782.067051][ C2] ? __lock_release+0x40f/0x880
[ 782.067431][ C2] ? __pfx___lock_release+0x10/0x10
[ 782.067818][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 782.068254][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 782.068631][ C2] ? __pfx___up_read+0x10/0x10
[ 782.068988][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 782.069385][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 782.069784][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 782.070188][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 782.070487][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 782.070775][ C2] __tcf_action_put+0x3d/0xf0
[ 782.071024][ C2] tcf_action_destroy+0x43/0x130
[ 782.071273][ C2] tcf_exts_destroy+0x3c/0xb0
[ 782.071510][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 782.071835][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 782.072106][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 782.072400][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 782.072694][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 782.072983][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 782.073292][ C2] ? __lock_release+0x40f/0x880
[ 782.073537][ C2] ? __mutex_lock+0x26e/0xb10
[ 782.073779][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 782.074058][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 782.074363][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 782.074664][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 782.074912][ C2] tcf_chain_flush+0x1e0/0x320
[ 782.075156][ C2] __tcf_block_put+0x113/0x270
[ 782.075397][ C2] tcf_block_put+0xaf/0xf0
[ 782.075623][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 782.075885][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 782.076154][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 782.076425][ C2] __qdisc_destroy+0xee/0x340
[ 782.076663][ C2] dev_shutdown+0x164/0x350
[ 782.076923][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 782.077242][ C2] ? mutex_is_locked+0x17/0x50
[ 782.077493][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 782.077837][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 782.078153][ C2] default_device_exit_batch+0x234/0x2d0
[ 782.078435][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 782.078752][ C2] ? ops_exit_list+0xb4/0x170
[ 782.078990][ C2] cleanup_net+0x4f3/0xb60
[ 782.079213][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 782.079495][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 782.079750][ C2] ? lock_acquire+0x1c1/0x220
[ 782.079988][ C2] ? process_one_work+0x714/0x1310
[ 782.080246][ C2] process_one_work+0x78c/0x1310
[ 782.080495][ C2] ? hlock_class+0x4e/0x130
[ 782.080732][ C2] ? __pfx_process_one_work+0x10/0x10
[ 782.081026][ C2] ? assign_work+0x16c/0x240
[ 782.081321][ C2] worker_thread+0x73d/0x1010
[ 782.081677][ C2] ? __pfx_worker_thread+0x10/0x10
[ 782.082015][ C2] kthread+0x28f/0x360
[ 782.082293][ C2] ? __pfx_kthread+0x10/0x10
[ 782.082598][ C2] ret_from_fork+0x31/0x70
[ 782.082930][ C2] ? __pfx_kthread+0x10/0x10
[ 782.083279][ C2] ret_from_fork_asm+0x1b/0x30
[ 782.083647][ C2]
[ 808.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 634s! [kworker/u8:0:11]
[ 808.564100][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 808.564597][ C2] irq event stamp: 753065
[ 808.564870][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 808.565381][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 808.565913][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 808.566492][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 808.567080][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 808.567684][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 808.568465][ C2] Workqueue: netns cleanup_net
[ 808.568780][ C2] RIP: 0010:kasan_report+0xda/0xf0
[ 808.569094][ C2] Code: 7c f5 ff ff 48 8d 7c 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd ff ff ff 34 24 9d 48 83 c4 70 44 89 e0 5b <5d> 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 45 31 e4 eb e1 0f 1f 00
[ 808.570322][ C2] RSP: 0018:ffffc900000bf280 EFLAGS: 00000286
[ 808.570702][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 808.571202][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 808.571708][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 808.572207][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000000
[ 808.572715][ C2] R13: ffffffffaeeb3f0c R14: 0000000000000004 R15: ffff888001c02640
[ 808.573164][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 808.573728][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 808.574149][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 808.574654][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 808.575123][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 808.575631][ C2] PKRU: 55555554
[ 808.575853][ C2] Call Trace:
[ 808.576059][ C2]
[ 808.576249][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 808.576588][ C2] ? __run_hrtimer+0x1c0/0x710
[ 808.576883][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 808.577245][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 808.577564][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 808.577942][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 808.578277][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 808.578632][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 808.578970][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 808.579349][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 808.579721][ C2]
[ 808.579907][ C2]
[ 808.580057][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 808.580368][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 808.580674][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 808.580968][ C2] ? kasan_report+0xda/0xf0
[ 808.581199][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 808.581496][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 808.581805][ C2] ? __pfx___schedule+0x10/0x10
[ 808.582053][ C2] do_raw_spin_lock+0x1ec/0x270
[ 808.582302][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 808.582570][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 808.582850][ C2] ? lock_acquire+0x1c1/0x220
[ 808.583088][ C2] ? __mutex_lock+0x33e/0xb10
[ 808.583327][ C2] ? __mutex_lock+0x811/0xb10
[ 808.583564][ C2] _raw_spin_lock+0x67/0x80
[ 808.583792][ C2] __mutex_lock+0x33e/0xb10
[ 808.584022][ C2] ? __lock_release+0x40f/0x880
[ 808.584268][ C2] ? __pfx___lock_release+0x10/0x10
[ 808.584527][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 808.584822][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 808.585076][ C2] ? __pfx___up_read+0x10/0x10
[ 808.585317][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 808.585584][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 808.585852][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 808.586141][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 808.586433][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 808.586714][ C2] __tcf_action_put+0x3d/0xf0
[ 808.586956][ C2] tcf_action_destroy+0x43/0x130
[ 808.587206][ C2] tcf_exts_destroy+0x3c/0xb0
[ 808.587456][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 808.587774][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 808.588048][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 808.588345][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 808.588641][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 808.588925][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 808.589269][ C2] ? __lock_release+0x40f/0x880
[ 808.589554][ C2] ? __mutex_lock+0x26e/0xb10
[ 808.589854][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 808.590211][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 808.590532][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 808.590879][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 808.591189][ C2] tcf_chain_flush+0x1e0/0x320
[ 808.591463][ C2] __tcf_block_put+0x113/0x270
[ 808.591771][ C2] tcf_block_put+0xaf/0xf0
[ 808.592045][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 808.592370][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 808.592724][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 808.593080][ C2] __qdisc_destroy+0xee/0x340
[ 808.593388][ C2] dev_shutdown+0x164/0x350
[ 808.593685][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 808.594093][ C2] ? mutex_is_locked+0x17/0x50
[ 808.594396][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 808.594828][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 808.595227][ C2] default_device_exit_batch+0x234/0x2d0
[ 808.595592][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 808.595992][ C2] ? ops_exit_list+0xb4/0x170
[ 808.596295][ C2] cleanup_net+0x4f3/0xb60
[ 808.596586][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 808.596955][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 808.597285][ C2] ? lock_acquire+0x1c1/0x220
[ 808.597539][ C2] ? process_one_work+0x714/0x1310
[ 808.597848][ C2] process_one_work+0x78c/0x1310
[ 808.598169][ C2] ? hlock_class+0x4e/0x130
[ 808.598464][ C2] ? __pfx_process_one_work+0x10/0x10
[ 808.598814][ C2] ? assign_work+0x16c/0x240
[ 808.599110][ C2] worker_thread+0x73d/0x1010
[ 808.599420][ C2] ? __pfx_worker_thread+0x10/0x10
[ 808.599739][ C2] kthread+0x28f/0x360
[ 808.600010][ C2] ? __pfx_kthread+0x10/0x10
[ 808.600309][ C2] ret_from_fork+0x31/0x70
[ 808.600591][ C2] ? __pfx_kthread+0x10/0x10
[ 808.600899][ C2] ret_from_fork_asm+0x1b/0x30
[ 808.601190][ C2]
[ 836.563631][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 660s! [kworker/u8:0:11]
[ 836.564320][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 836.564945][ C2] irq event stamp: 753065
[ 836.565286][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 836.566006][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 836.566722][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 836.567438][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 836.568108][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 836.568831][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 836.569727][ C2] Workqueue: netns cleanup_net
[ 836.570064][ C2] RIP: 0010:kasan_check_range+0x156/0x1c0
[ 836.570470][ C2] Code: d0 74 11 80 38 00 74 ef 4d 8d 1c 2c 48 89 c2 48 85 c0 75 b0 48 89 da 4c 89 d8 4c 29 da e9 49 ff ff ff 48 85 d2 74 b3 48 01 ea 09 48 83 c0 01 48 39 d0 74 a5 80 38 00 74 f2 e9 74 ff ff ff b8
[ 836.571823][ C2] RSP: 0018:ffffc900000bf290 EFLAGS: 00000282
[ 836.572266][ C2] RAX: ffffed100701fa01 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 836.572872][ C2] RDX: ffffed100701fa02 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 836.573464][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 836.574020][ C2] R10: ffff8880380fd00b R11: 205d313154202020 R12: 0000000000000003
[ 836.574578][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 836.575137][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 836.575766][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 836.576243][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 836.576800][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 836.577381][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 836.577932][ C2] PKRU: 55555554
[ 836.578196][ C2] Call Trace:
[ 836.578443][ C2]
[ 836.578664][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 836.579062][ C2] ? __run_hrtimer+0x1c0/0x710
[ 836.579411][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 836.579816][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 836.580220][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 836.580641][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 836.581029][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 836.581480][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 836.581865][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 836.582320][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 836.582757][ C2]
[ 836.582971][ C2]
[ 836.583198][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 836.583579][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 836.583867][ C2] ? kasan_check_range+0x156/0x1c0
[ 836.584141][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 836.584417][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 836.584725][ C2] ? __pfx___schedule+0x10/0x10
[ 836.584973][ C2] do_raw_spin_lock+0x1ec/0x270
[ 836.585231][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 836.585498][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 836.585779][ C2] ? lock_acquire+0x1c1/0x220
[ 836.586014][ C2] ? __mutex_lock+0x33e/0xb10
[ 836.586305][ C2] ? __mutex_lock+0x811/0xb10
[ 836.586542][ C2] _raw_spin_lock+0x67/0x80
[ 836.586768][ C2] __mutex_lock+0x33e/0xb10
[ 836.586999][ C2] ? __lock_release+0x40f/0x880
[ 836.587273][ C2] ? __pfx___lock_release+0x10/0x10
[ 836.587535][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 836.587830][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 836.588098][ C2] ? __pfx___up_read+0x10/0x10
[ 836.588338][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 836.588605][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 836.588871][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 836.589170][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 836.589463][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 836.589748][ C2] __tcf_action_put+0x3d/0xf0
[ 836.589987][ C2] tcf_action_destroy+0x43/0x130
[ 836.590246][ C2] tcf_exts_destroy+0x3c/0xb0
[ 836.590483][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 836.590798][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 836.591082][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 836.591389][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 836.591680][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 836.591963][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 836.592293][ C2] ? __lock_release+0x40f/0x880
[ 836.592539][ C2] ? __mutex_lock+0x26e/0xb10
[ 836.592777][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 836.593066][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 836.593463][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 836.593765][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 836.594011][ C2] tcf_chain_flush+0x1e0/0x320
[ 836.594262][ C2] __tcf_block_put+0x113/0x270
[ 836.594504][ C2] tcf_block_put+0xaf/0xf0
[ 836.594729][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 836.594988][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 836.595269][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 836.595541][ C2] __qdisc_destroy+0xee/0x340
[ 836.595779][ C2] dev_shutdown+0x164/0x350
[ 836.596008][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 836.596352][ C2] ? mutex_is_locked+0x17/0x50
[ 836.596596][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 836.596952][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 836.597389][ C2] default_device_exit_batch+0x234/0x2d0
[ 836.597768][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 836.598217][ C2] ? ops_exit_list+0xb4/0x170
[ 836.598569][ C2] cleanup_net+0x4f3/0xb60
[ 836.598881][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 836.599182][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 836.599432][ C2] ? lock_acquire+0x1c1/0x220
[ 836.599667][ C2] ? process_one_work+0x714/0x1310
[ 836.599926][ C2] process_one_work+0x78c/0x1310
[ 836.600201][ C2] ? hlock_class+0x4e/0x130
[ 836.600432][ C2] ? __pfx_process_one_work+0x10/0x10
[ 836.600704][ C2] ? assign_work+0x16c/0x240
[ 836.600938][ C2] worker_thread+0x73d/0x1010
[ 836.601204][ C2] ? __pfx_worker_thread+0x10/0x10
[ 836.601461][ C2] kthread+0x28f/0x360
[ 836.601668][ C2] ? __pfx_kthread+0x10/0x10
[ 836.601902][ C2] ret_from_fork+0x31/0x70
[ 836.602136][ C2] ? __pfx_kthread+0x10/0x10
[ 836.602369][ C2] ret_from_fork_asm+0x1b/0x30
[ 836.602616][ C2]
[ 853.319972][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 721261 jiffies s: 4309 root: 0x4/.
[ 853.320649][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 853.321039][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 853.321316][ C2] NMI backtrace for cpu 2
[ 853.321323][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 853.321327][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 853.321330][ C2] Workqueue: netns cleanup_net
[ 853.321338][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 853.321346][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 853.321348][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 853.321351][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 853.321352][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 853.321354][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 853.321355][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 853.321356][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 853.321358][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 853.321360][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 853.321364][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 853.321365][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 853.321366][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 853.321367][ C2] PKRU: 55555554
[ 853.321368][ C2] Call Trace:
[ 853.321371][ C2]
[ 853.321375][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 853.321380][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 853.321384][ C2] ? nmi_handle+0x153/0x420
[ 853.321389][ C2] ? default_do_nmi+0x41/0x100
[ 853.321393][ C2] ? exc_nmi+0xf3/0x120
[ 853.321395][ C2] ? end_repeat_nmi+0xf/0x60
[ 853.321400][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 853.321403][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 853.321406][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 853.321409][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 853.321413][ C2]
[ 853.321413][ C2]
[ 853.321414][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 853.321418][ C2] ? __pfx___schedule+0x10/0x10
[ 853.321423][ C2] do_raw_spin_lock+0x1ec/0x270
[ 853.321429][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 853.321432][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 853.321435][ C2] ? lock_acquire+0x1c1/0x220
[ 853.321437][ C2] ? __mutex_lock+0x33e/0xb10
[ 853.321441][ C2] ? __mutex_lock+0x811/0xb10
[ 853.321444][ C2] _raw_spin_lock+0x67/0x80
[ 853.321447][ C2] __mutex_lock+0x33e/0xb10
[ 853.321450][ C2] ? __lock_release+0x40f/0x880
[ 853.321453][ C2] ? __pfx___lock_release+0x10/0x10
[ 853.321455][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 853.321460][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 853.321463][ C2] ? __pfx___up_read+0x10/0x10
[ 853.321467][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 853.321470][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 853.321475][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 853.321481][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 853.321484][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 853.321488][ C2] __tcf_action_put+0x3d/0xf0
[ 853.321492][ C2] tcf_action_destroy+0x43/0x130
[ 853.321496][ C2] tcf_exts_destroy+0x3c/0xb0
[ 853.321499][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 853.321509][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 853.321517][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 853.321525][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 853.321534][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 853.321543][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 853.321550][ C2] ? __lock_release+0x40f/0x880
[ 853.321554][ C2] ? __mutex_lock+0x26e/0xb10
[ 853.321558][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 853.321567][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 853.321575][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 853.321579][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 853.321583][ C2] tcf_chain_flush+0x1e0/0x320
[ 853.321587][ C2] __tcf_block_put+0x113/0x270
[ 853.321591][ C2] tcf_block_put+0xaf/0xf0
[ 853.321594][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 853.321598][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 853.321604][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 853.321611][ C2] __qdisc_destroy+0xee/0x340
[ 853.321615][ C2] dev_shutdown+0x164/0x350
[ 853.321618][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 853.321623][ C2] ? mutex_is_locked+0x17/0x50
[ 853.321626][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 853.321628][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 853.321633][ C2] default_device_exit_batch+0x234/0x2d0
[ 853.321636][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 853.321639][ C2] ? ops_exit_list+0xb4/0x170
[ 853.321642][ C2] cleanup_net+0x4f3/0xb60
[ 853.321645][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 853.321647][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 853.321651][ C2] ? lock_acquire+0x1c1/0x220
[ 853.321653][ C2] ? process_one_work+0x714/0x1310
[ 853.321658][ C2] process_one_work+0x78c/0x1310
[ 853.321662][ C2] ? hlock_class+0x4e/0x130
[ 853.321665][ C2] ? __pfx_process_one_work+0x10/0x10
[ 853.321670][ C2] ? assign_work+0x16c/0x240
[ 853.321673][ C2] worker_thread+0x73d/0x1010
[ 853.321679][ C2] ? __pfx_worker_thread+0x10/0x10
[ 853.321681][ C2] kthread+0x28f/0x360
[ 853.321684][ C2] ? __pfx_kthread+0x10/0x10
[ 853.321687][ C2] ret_from_fork+0x31/0x70
[ 853.321690][ C2] ? __pfx_kthread+0x10/0x10
[ 853.321692][ C2] ret_from_fork_asm+0x1b/0x30
[ 853.321700][ C2]
[ 860.084937][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 860.085334][ C2] rcu: 2-....: (727158 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=181383
[ 860.085871][ C2] rcu: (t=728332 jiffies g=119533 q=6108 ncpus=4)
[ 860.086196][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 860.086661][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 860.087277][ C2] Workqueue: netns cleanup_net
[ 860.087522][ C2] RIP: 0010:kasan_report+0x19/0xf0
[ 860.087780][ C2] Code: 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca <65> 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 85 c0 0f 85 b7 00
[ 860.088736][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 860.089041][ C2] RAX: 0000000000000001 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 860.089434][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 860.089827][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 860.090220][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 860.090616][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 860.091009][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 860.091450][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 860.091779][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 860.092176][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 860.092571][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 860.092965][ C2] PKRU: 55555554
[ 860.093144][ C2] Call Trace:
[ 860.093313][ C2]
[ 860.093460][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 860.093730][ C2] ? print_cpu_stall+0x263/0x6a0
[ 860.093980][ C2] ? check_cpu_stall+0x284/0x500
[ 860.094230][ C2] ? rcu_pending+0x92/0x360
[ 860.094458][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 860.094725][ C2] ? update_process_times+0xb9/0x110
[ 860.094992][ C2] ? tick_sched_handle+0x67/0x130
[ 860.095246][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 860.095573][ C2] ? __run_hrtimer+0x1c0/0x710
[ 860.095849][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 860.096234][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 860.096572][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 860.096858][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 860.097172][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 860.097558][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 860.097869][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 860.098243][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 860.098625][ C2]
[ 860.098822][ C2]
[ 860.099018][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 860.099441][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 860.099818][ C2] ? kasan_report+0x19/0xf0
[ 860.100124][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 860.100515][ C2] kasan_check_range+0x39/0x1c0
[ 860.100837][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 860.101198][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 860.101605][ C2] ? __pfx___schedule+0x10/0x10
[ 860.101926][ C2] do_raw_spin_lock+0x1ec/0x270
[ 860.102250][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 860.102610][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 860.102980][ C2] ? lock_acquire+0x1c1/0x220
[ 860.103287][ C2] ? __mutex_lock+0x33e/0xb10
[ 860.103596][ C2] ? __mutex_lock+0x811/0xb10
[ 860.103906][ C2] _raw_spin_lock+0x67/0x80
[ 860.104207][ C2] __mutex_lock+0x33e/0xb10
[ 860.104514][ C2] ? __lock_release+0x40f/0x880
[ 860.104832][ C2] ? __pfx___lock_release+0x10/0x10
[ 860.105164][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 860.105545][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 860.105877][ C2] ? __pfx___up_read+0x10/0x10
[ 860.106188][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 860.106545][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 860.106871][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 860.107251][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 860.107602][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 860.107971][ C2] __tcf_action_put+0x3d/0xf0
[ 860.108284][ C2] tcf_action_destroy+0x43/0x130
[ 860.108584][ C2] tcf_exts_destroy+0x3c/0xb0
[ 860.108889][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 860.109250][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 860.109521][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 860.109821][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 860.110115][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 860.110432][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 860.110791][ C2] ? __lock_release+0x40f/0x880
[ 860.111038][ C2] ? __mutex_lock+0x26e/0xb10
[ 860.111276][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 860.111606][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 860.111985][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 860.112368][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 860.112615][ C2] tcf_chain_flush+0x1e0/0x320
[ 860.112912][ C2] __tcf_block_put+0x113/0x270
[ 860.113199][ C2] tcf_block_put+0xaf/0xf0
[ 860.113472][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 860.113811][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 860.114173][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 860.114539][ C2] __qdisc_destroy+0xee/0x340
[ 860.114855][ C2] dev_shutdown+0x164/0x350
[ 860.115158][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 860.115585][ C2] ? mutex_is_locked+0x17/0x50
[ 860.115908][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 860.116352][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 860.116764][ C2] default_device_exit_batch+0x234/0x2d0
[ 860.117150][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 860.117552][ C2] ? ops_exit_list+0xb4/0x170
[ 860.117865][ C2] cleanup_net+0x4f3/0xb60
[ 860.118168][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 860.118545][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 860.118874][ C2] ? lock_acquire+0x1c1/0x220
[ 860.119188][ C2] ? process_one_work+0x714/0x1310
[ 860.119533][ C2] process_one_work+0x78c/0x1310
[ 860.119865][ C2] ? hlock_class+0x4e/0x130
[ 860.120169][ C2] ? __pfx_process_one_work+0x10/0x10
[ 860.120532][ C2] ? assign_work+0x16c/0x240
[ 860.120832][ C2] worker_thread+0x73d/0x1010
[ 860.121156][ C2] ? __pfx_worker_thread+0x10/0x10
[ 860.121429][ C2] kthread+0x28f/0x360
[ 860.121697][ C2] ? __pfx_kthread+0x10/0x10
[ 860.122014][ C2] ret_from_fork+0x31/0x70
[ 860.122289][ C2] ? __pfx_kthread+0x10/0x10
[ 860.122602][ C2] ret_from_fork_asm+0x1b/0x30
[ 860.122920][ C2]
[ 884.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 704s! [kworker/u8:0:11]
[ 884.564106][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 884.564536][ C2] irq event stamp: 753065
[ 884.564759][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 884.565239][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 884.565714][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 884.566197][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 884.566677][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 884.567178][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 884.567811][ C2] Workqueue: netns cleanup_net
[ 884.568062][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 884.568401][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 884.569392][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 884.569711][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 884.570125][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 884.570527][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 884.570931][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 884.571340][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 884.571749][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 884.572215][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 884.572542][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 884.572944][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 884.573340][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 884.573736][ C2] PKRU: 55555554
[ 884.573924][ C2] Call Trace:
[ 884.574094][ C2]
[ 884.574240][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 884.574500][ C2] ? __run_hrtimer+0x1c0/0x710
[ 884.574743][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 884.575017][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 884.575287][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 884.575595][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 884.575862][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 884.576179][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 884.576442][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 884.576756][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 884.577074][ C2]
[ 884.577228][ C2]
[ 884.577385][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 884.577715][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 884.578022][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 884.578326][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 884.578649][ C2] ? __pfx___schedule+0x10/0x10
[ 884.578904][ C2] do_raw_spin_lock+0x1ec/0x270
[ 884.579159][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 884.579442][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 884.579731][ C2] ? lock_acquire+0x1c1/0x220
[ 884.579983][ C2] ? __mutex_lock+0x33e/0xb10
[ 884.580224][ C2] ? __mutex_lock+0x811/0xb10
[ 884.580473][ C2] _raw_spin_lock+0x67/0x80
[ 884.580710][ C2] __mutex_lock+0x33e/0xb10
[ 884.580946][ C2] ? __lock_release+0x40f/0x880
[ 884.581205][ C2] ? __pfx___lock_release+0x10/0x10
[ 884.581474][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 884.581782][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 884.582040][ C2] ? __pfx___up_read+0x10/0x10
[ 884.582299][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 884.582570][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 884.582853][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 884.583152][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 884.583457][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 884.583748][ C2] __tcf_action_put+0x3d/0xf0
[ 884.584003][ C2] tcf_action_destroy+0x43/0x130
[ 884.584262][ C2] tcf_exts_destroy+0x3c/0xb0
[ 884.584509][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 884.584837][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 884.585113][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 884.585436][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 884.585734][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 884.586032][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 884.586362][ C2] ? __lock_release+0x40f/0x880
[ 884.586618][ C2] ? __mutex_lock+0x26e/0xb10
[ 884.586886][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 884.587193][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 884.587511][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 884.587822][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 884.588072][ C2] tcf_chain_flush+0x1e0/0x320
[ 884.588334][ C2] __tcf_block_put+0x113/0x270
[ 884.588583][ C2] tcf_block_put+0xaf/0xf0
[ 884.588821][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 884.589096][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 884.589367][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 884.589648][ C2] __qdisc_destroy+0xee/0x340
[ 884.589887][ C2] dev_shutdown+0x164/0x350
[ 884.590116][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 884.590441][ C2] ? mutex_is_locked+0x17/0x50
[ 884.590695][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 884.591033][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 884.591347][ C2] default_device_exit_batch+0x234/0x2d0
[ 884.591629][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 884.591939][ C2] ? ops_exit_list+0xb4/0x170
[ 884.592187][ C2] cleanup_net+0x4f3/0xb60
[ 884.592424][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 884.592714][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 884.592981][ C2] ? lock_acquire+0x1c1/0x220
[ 884.593218][ C2] ? process_one_work+0x714/0x1310
[ 884.593488][ C2] process_one_work+0x78c/0x1310
[ 884.593751][ C2] ? hlock_class+0x4e/0x130
[ 884.593985][ C2] ? __pfx_process_one_work+0x10/0x10
[ 884.594273][ C2] ? assign_work+0x16c/0x240
[ 884.594514][ C2] worker_thread+0x73d/0x1010
[ 884.594785][ C2] ? __pfx_worker_thread+0x10/0x10
[ 884.595090][ C2] kthread+0x28f/0x360
[ 884.595305][ C2] ? __pfx_kthread+0x10/0x10
[ 884.595553][ C2] ret_from_fork+0x31/0x70
[ 884.595787][ C2] ? __pfx_kthread+0x10/0x10
[ 884.596031][ C2] ret_from_fork_asm+0x1b/0x30
[ 884.596286][ C2]
[ 912.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 730s! [kworker/u8:0:11]
[ 912.564091][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 912.564502][ C2] irq event stamp: 753065
[ 912.564722][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 912.565192][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 912.565657][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 912.566125][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 912.566584][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 912.567063][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 912.567673][ C2] Workqueue: netns cleanup_net
[ 912.567917][ C2] RIP: 0010:kasan_report+0xd2/0xf0
[ 912.568178][ C2] Code: 24 28 4c 89 6c 24 30 e8 7c f5 ff ff 48 8d 7c 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd ff ff ff 34 24 9d <48> 83 c4 70 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc
[ 912.569153][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 912.569457][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb35b0
[ 912.569852][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 912.570252][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 912.570649][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000000
[ 912.571062][ C2] R13: ffffffffaeeb35b0 R14: 0000000000000004 R15: ffff888001c02640
[ 912.571458][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 912.571901][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 912.572230][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 912.572624][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 912.573023][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 912.573417][ C2] PKRU: 55555554
[ 912.573597][ C2] Call Trace:
[ 912.573765][ C2]
[ 912.573913][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 912.574174][ C2] ? __run_hrtimer+0x1c0/0x710
[ 912.574415][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 912.574691][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 912.574960][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 912.575246][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 912.575508][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 912.575810][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 912.576070][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 912.576375][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 912.576669][ C2]
[ 912.576826][ C2]
[ 912.576976][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 912.577287][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 912.577572][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 912.577860][ C2] ? kasan_report+0xd2/0xf0
[ 912.578092][ C2] kasan_check_range+0x39/0x1c0
[ 912.578339][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 912.578618][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 912.578926][ C2] ? __pfx___schedule+0x10/0x10
[ 912.579173][ C2] do_raw_spin_lock+0x1ec/0x270
[ 912.579420][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 912.579689][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 912.579972][ C2] ? lock_acquire+0x1c1/0x220
[ 912.580209][ C2] ? __mutex_lock+0x33e/0xb10
[ 912.580443][ C2] ? __mutex_lock+0x811/0xb10
[ 912.580681][ C2] _raw_spin_lock+0x67/0x80
[ 912.580910][ C2] __mutex_lock+0x33e/0xb10
[ 912.581138][ C2] ? __lock_release+0x40f/0x880
[ 912.581383][ C2] ? __pfx___lock_release+0x10/0x10
[ 912.581643][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 912.581939][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 912.582193][ C2] ? __pfx___up_read+0x10/0x10
[ 912.582435][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 912.582700][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 912.582967][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 912.583257][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 912.583547][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 912.583830][ C2] __tcf_action_put+0x3d/0xf0
[ 912.584069][ C2] tcf_action_destroy+0x43/0x130
[ 912.584318][ C2] tcf_exts_destroy+0x3c/0xb0
[ 912.584554][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 912.584871][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 912.585142][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 912.585441][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 912.585730][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 912.586018][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 912.586326][ C2] ? __lock_release+0x40f/0x880
[ 912.586569][ C2] ? __mutex_lock+0x26e/0xb10
[ 912.586815][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 912.587097][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 912.587401][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 912.587703][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 912.587950][ C2] tcf_chain_flush+0x1e0/0x320
[ 912.588193][ C2] __tcf_block_put+0x113/0x270
[ 912.588433][ C2] tcf_block_put+0xaf/0xf0
[ 912.588657][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 912.588915][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 912.589184][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 912.589459][ C2] __qdisc_destroy+0xee/0x340
[ 912.589699][ C2] dev_shutdown+0x164/0x350
[ 912.589930][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 912.590249][ C2] ? mutex_is_locked+0x17/0x50
[ 912.590490][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 912.590825][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 912.591140][ C2] default_device_exit_batch+0x234/0x2d0
[ 912.591421][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 912.591728][ C2] ? ops_exit_list+0xb4/0x170
[ 912.591968][ C2] cleanup_net+0x4f3/0xb60
[ 912.592192][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 912.592471][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 912.592720][ C2] ? lock_acquire+0x1c1/0x220
[ 912.592957][ C2] ? process_one_work+0x714/0x1310
[ 912.593217][ C2] process_one_work+0x78c/0x1310
[ 912.593467][ C2] ? hlock_class+0x4e/0x130
[ 912.593694][ C2] ? __pfx_process_one_work+0x10/0x10
[ 912.593967][ C2] ? assign_work+0x16c/0x240
[ 912.594198][ C2] worker_thread+0x73d/0x1010
[ 912.594438][ C2] ? __pfx_worker_thread+0x10/0x10
[ 912.594697][ C2] kthread+0x28f/0x360
[ 912.594901][ C2] ? __pfx_kthread+0x10/0x10
[ 912.595136][ C2] ret_from_fork+0x31/0x70
[ 912.595361][ C2] ? __pfx_kthread+0x10/0x10
[ 912.595590][ C2] ret_from_fork_asm+0x1b/0x30
[ 912.595837][ C2]
[ 938.122938][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 938.123308][ C2] rcu: 2-....: (805095 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=200866
[ 938.123877][ C2] rcu: (t=806370 jiffies g=119533 q=6108 ncpus=4)
[ 938.124230][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 938.124748][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 938.125531][ C2] Workqueue: netns cleanup_net
[ 938.125846][ C2] RIP: 0010:report_enabled+0x19/0x30
[ 938.126118][ C2] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 05 b9 a9 a4 05 48 d1 e8 83 e0 01 75 0d f0 48 0f ba 2d a7 a9 a4 05 00 <0f> 93 c0 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40
[ 938.127095][ C2] RSP: 0018:ffffc900000bf1e0 EFLAGS: 00000247
[ 938.127406][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb35b0
[ 938.127812][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 938.128206][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 938.128600][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 938.129001][ C2] R13: ffffffffaeeb35b0 R14: 0000000000000004 R15: ffff888001c02640
[ 938.129398][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 938.129851][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 938.130182][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 938.130578][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 938.130985][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 938.131381][ C2] PKRU: 55555554
[ 938.131560][ C2] Call Trace:
[ 938.131735][ C2]
[ 938.131884][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 938.132157][ C2] ? print_cpu_stall+0x263/0x6a0
[ 938.132408][ C2] ? check_cpu_stall+0x284/0x500
[ 938.132659][ C2] ? rcu_pending+0x92/0x360
[ 938.132893][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 938.133163][ C2] ? update_process_times+0xb9/0x110
[ 938.133431][ C2] ? tick_sched_handle+0x67/0x130
[ 938.133684][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 938.133979][ C2] ? __run_hrtimer+0x1c0/0x710
[ 938.134223][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 938.134535][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 938.134815][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 938.135127][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 938.135391][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 938.135697][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 938.135965][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 938.136273][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 938.136568][ C2]
[ 938.136742][ C2]
[ 938.136893][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 938.137206][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 938.137503][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 938.137802][ C2] ? report_enabled+0x19/0x30
[ 938.138040][ C2] kasan_report+0x41/0xf0
[ 938.138262][ C2] ? kasan_report+0xe/0xf0
[ 938.138486][ C2] kasan_check_range+0x39/0x1c0
[ 938.138753][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 938.139033][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 938.139341][ C2] ? __pfx___schedule+0x10/0x10
[ 938.139588][ C2] do_raw_spin_lock+0x1ec/0x270
[ 938.139836][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 938.140112][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 938.140401][ C2] ? lock_acquire+0x1c1/0x220
[ 938.140637][ C2] ? __mutex_lock+0x33e/0xb10
[ 938.140873][ C2] ? __mutex_lock+0x811/0xb10
[ 938.141112][ C2] _raw_spin_lock+0x67/0x80
[ 938.141343][ C2] __mutex_lock+0x33e/0xb10
[ 938.141569][ C2] ? __lock_release+0x40f/0x880
[ 938.141837][ C2] ? __pfx___lock_release+0x10/0x10
[ 938.142097][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 938.142398][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 938.142651][ C2] ? __pfx___up_read+0x10/0x10
[ 938.142893][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 938.143161][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 938.143433][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 938.143723][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 938.144019][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 938.144303][ C2] __tcf_action_put+0x3d/0xf0
[ 938.144541][ C2] tcf_action_destroy+0x43/0x130
[ 938.144791][ C2] tcf_exts_destroy+0x3c/0xb0
[ 938.145028][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 938.145348][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 938.145624][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 938.145936][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 938.146232][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 938.146519][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 938.146840][ C2] ? __lock_release+0x40f/0x880
[ 938.147094][ C2] ? __mutex_lock+0x26e/0xb10
[ 938.147339][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 938.147621][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 938.147932][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 938.148236][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 938.148484][ C2] tcf_chain_flush+0x1e0/0x320
[ 938.148727][ C2] __tcf_block_put+0x113/0x270
[ 938.148974][ C2] tcf_block_put+0xaf/0xf0
[ 938.149199][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 938.149460][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 938.149744][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 938.150021][ C2] __qdisc_destroy+0xee/0x340
[ 938.150257][ C2] dev_shutdown+0x164/0x350
[ 938.150493][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 938.150814][ C2] ? mutex_is_locked+0x17/0x50
[ 938.151057][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 938.151399][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 938.151712][ C2] default_device_exit_batch+0x234/0x2d0
[ 938.152004][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 938.152311][ C2] ? ops_exit_list+0xb4/0x170
[ 938.152555][ C2] cleanup_net+0x4f3/0xb60
[ 938.152780][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 938.153068][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 938.153316][ C2] ? lock_acquire+0x1c1/0x220
[ 938.153553][ C2] ? process_one_work+0x714/0x1310
[ 938.153813][ C2] process_one_work+0x78c/0x1310
[ 938.154066][ C2] ? hlock_class+0x4e/0x130
[ 938.154307][ C2] ? __pfx_process_one_work+0x10/0x10
[ 938.154580][ C2] ? assign_work+0x16c/0x240
[ 938.154812][ C2] worker_thread+0x73d/0x1010
[ 938.155052][ C2] ? __pfx_worker_thread+0x10/0x10
[ 938.155307][ C2] kthread+0x28f/0x360
[ 938.155512][ C2] ? __pfx_kthread+0x10/0x10
[ 938.155760][ C2] ret_from_fork+0x31/0x70
[ 938.155987][ C2] ? __pfx_kthread+0x10/0x10
[ 938.156217][ C2] ret_from_fork_asm+0x1b/0x30
[ 938.156463][ C2]
[ 951.623962][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 819565 jiffies s: 4309 root: 0x4/.
[ 951.624616][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 951.624982][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 951.625258][ C2] NMI backtrace for cpu 2
[ 951.625274][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 951.625279][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 951.625281][ C2] Workqueue: netns cleanup_net
[ 951.625289][ C2] RIP: 0010:kasan_report+0x19/0xf0
[ 951.625295][ C2] Code: 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca <65> 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 85 c0 0f 85 b7 00
[ 951.625298][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 951.625301][ C2] RAX: 0000000000000001 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 951.625303][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 951.625304][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 951.625306][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 951.625307][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 951.625309][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 951.625311][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 951.625314][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 951.625316][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 951.625317][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 951.625319][ C2] PKRU: 55555554
[ 951.625320][ C2] Call Trace:
[ 951.625323][ C2]
[ 951.625326][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 951.625332][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 951.625336][ C2] ? nmi_handle+0x153/0x420
[ 951.625340][ C2] ? default_do_nmi+0x41/0x100
[ 951.625346][ C2] ? exc_nmi+0xf3/0x120
[ 951.625348][ C2] ? end_repeat_nmi+0xf/0x60
[ 951.625353][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 951.625358][ C2] ? kasan_report+0x19/0xf0
[ 951.625361][ C2] ? kasan_report+0x19/0xf0
[ 951.625364][ C2] ? kasan_report+0x19/0xf0
[ 951.625367][ C2]
[ 951.625368][ C2]
[ 951.625371][ C2] kasan_check_range+0x39/0x1c0
[ 951.625376][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 951.625380][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 951.625383][ C2] ? __pfx___schedule+0x10/0x10
[ 951.625388][ C2] do_raw_spin_lock+0x1ec/0x270
[ 951.625394][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 951.625396][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 951.625399][ C2] ? lock_acquire+0x1c1/0x220
[ 951.625402][ C2] ? __mutex_lock+0x33e/0xb10
[ 951.625406][ C2] ? __mutex_lock+0x811/0xb10
[ 951.625408][ C2] _raw_spin_lock+0x67/0x80
[ 951.625411][ C2] __mutex_lock+0x33e/0xb10
[ 951.625415][ C2] ? __lock_release+0x40f/0x880
[ 951.625418][ C2] ? __pfx___lock_release+0x10/0x10
[ 951.625420][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 951.625426][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 951.625429][ C2] ? __pfx___up_read+0x10/0x10
[ 951.625433][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 951.625436][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 951.625440][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 951.625446][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 951.625449][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 951.625453][ C2] __tcf_action_put+0x3d/0xf0
[ 951.625457][ C2] tcf_action_destroy+0x43/0x130
[ 951.625461][ C2] tcf_exts_destroy+0x3c/0xb0
[ 951.625464][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 951.625476][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 951.625484][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 951.625492][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 951.625501][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 951.625510][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 951.625518][ C2] ? __lock_release+0x40f/0x880
[ 951.625522][ C2] ? __mutex_lock+0x26e/0xb10
[ 951.625526][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 951.625535][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 951.625543][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 951.625548][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 951.625552][ C2] tcf_chain_flush+0x1e0/0x320
[ 951.625556][ C2] __tcf_block_put+0x113/0x270
[ 951.625560][ C2] tcf_block_put+0xaf/0xf0
[ 951.625562][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 951.625566][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 951.625573][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 951.625580][ C2] __qdisc_destroy+0xee/0x340
[ 951.625583][ C2] dev_shutdown+0x164/0x350
[ 951.625587][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 951.625591][ C2] ? mutex_is_locked+0x17/0x50
[ 951.625594][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 951.625597][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 951.625602][ C2] default_device_exit_batch+0x234/0x2d0
[ 951.625605][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 951.625608][ C2] ? ops_exit_list+0xb4/0x170
[ 951.625611][ C2] cleanup_net+0x4f3/0xb60
[ 951.625614][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 951.625616][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 951.625620][ C2] ? lock_acquire+0x1c1/0x220
[ 951.625622][ C2] ? process_one_work+0x714/0x1310
[ 951.625627][ C2] process_one_work+0x78c/0x1310
[ 951.625631][ C2] ? hlock_class+0x4e/0x130
[ 951.625634][ C2] ? __pfx_process_one_work+0x10/0x10
[ 951.625639][ C2] ? assign_work+0x16c/0x240
[ 951.625642][ C2] worker_thread+0x73d/0x1010
[ 951.625648][ C2] ? __pfx_worker_thread+0x10/0x10
[ 951.625650][ C2] kthread+0x28f/0x360
[ 951.625653][ C2] ? __pfx_kthread+0x10/0x10
[ 951.625655][ C2] ret_from_fork+0x31/0x70
[ 951.625658][ C2] ? __pfx_kthread+0x10/0x10
[ 951.625660][ C2] ret_from_fork_asm+0x1b/0x30
[ 951.625668][ C2]
[ 976.563631][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 790s! [kworker/u8:0:11]
[ 976.564300][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 976.564916][ C2] irq event stamp: 753065
[ 976.565241][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 976.565936][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 976.566636][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 976.567330][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 976.568020][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 976.568712][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 976.569578][ C2] Workqueue: netns cleanup_net
[ 976.569822][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 976.570145][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 976.571109][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 976.571435][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 976.571831][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 976.572226][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 976.572623][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 976.573015][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 976.573415][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 976.573854][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 976.574184][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 976.574585][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 976.574978][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 976.575380][ C2] PKRU: 55555554
[ 976.575558][ C2] Call Trace:
[ 976.575727][ C2]
[ 976.575874][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 976.576136][ C2] ? __run_hrtimer+0x1c0/0x710
[ 976.576404][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 976.576685][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 976.576956][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 976.577240][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 976.577513][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 976.577813][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 976.578072][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 976.578390][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 976.578683][ C2]
[ 976.578831][ C2]
[ 976.578981][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 976.579291][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 976.579594][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 976.579887][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 976.580197][ C2] ? __pfx___schedule+0x10/0x10
[ 976.580448][ C2] do_raw_spin_lock+0x1ec/0x270
[ 976.580696][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 976.580968][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 976.581250][ C2] ? lock_acquire+0x1c1/0x220
[ 976.581493][ C2] ? __mutex_lock+0x33e/0xb10
[ 976.581728][ C2] ? __mutex_lock+0x811/0xb10
[ 976.581964][ C2] _raw_spin_lock+0x67/0x80
[ 976.582201][ C2] __mutex_lock+0x33e/0xb10
[ 976.582531][ C2] ? __lock_release+0x40f/0x880
[ 976.582866][ C2] ? __pfx___lock_release+0x10/0x10
[ 976.583226][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 976.583663][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 976.584046][ C2] ? __pfx___up_read+0x10/0x10
[ 976.584403][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 976.584799][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 976.585195][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 976.585621][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 976.586048][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 976.586482][ C2] __tcf_action_put+0x3d/0xf0
[ 976.586841][ C2] tcf_action_destroy+0x43/0x130
[ 976.587214][ C2] tcf_exts_destroy+0x3c/0xb0
[ 976.587568][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 976.588043][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 976.588450][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 976.588897][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 976.589341][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 976.589767][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 976.590237][ C2] ? __lock_release+0x40f/0x880
[ 976.590603][ C2] ? __mutex_lock+0x26e/0xb10
[ 976.590961][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 976.591381][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 976.591838][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 976.592290][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 976.592660][ C2] tcf_chain_flush+0x1e0/0x320
[ 976.593023][ C2] __tcf_block_put+0x113/0x270
[ 976.593386][ C2] tcf_block_put+0xaf/0xf0
[ 976.593720][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 976.594109][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 976.594511][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 976.594918][ C2] __qdisc_destroy+0xee/0x340
[ 976.595273][ C2] dev_shutdown+0x164/0x350
[ 976.595611][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 976.596089][ C2] ? mutex_is_locked+0x17/0x50
[ 976.596457][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 976.596948][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 976.597417][ C2] default_device_exit_batch+0x234/0x2d0
[ 976.597728][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 976.598036][ C2] ? ops_exit_list+0xb4/0x170
[ 976.598275][ C2] cleanup_net+0x4f3/0xb60
[ 976.598522][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 976.598803][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 976.599053][ C2] ? lock_acquire+0x1c1/0x220
[ 976.599289][ C2] ? process_one_work+0x714/0x1310
[ 976.599552][ C2] process_one_work+0x78c/0x1310
[ 976.599802][ C2] ? hlock_class+0x4e/0x130
[ 976.600032][ C2] ? __pfx_process_one_work+0x10/0x10
[ 976.600303][ C2] ? assign_work+0x16c/0x240
[ 976.600539][ C2] worker_thread+0x73d/0x1010
[ 976.600781][ C2] ? __pfx_worker_thread+0x10/0x10
[ 976.601040][ C2] kthread+0x28f/0x360
[ 976.601245][ C2] ? __pfx_kthread+0x10/0x10
[ 976.601484][ C2] ret_from_fork+0x31/0x70
[ 976.601709][ C2] ? __pfx_kthread+0x10/0x10
[ 976.601938][ C2] ret_from_fork_asm+0x1b/0x30
[ 976.602184][ C2]
[ 1004.563632][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 816s! [kworker/u8:0:11]
[ 1004.564089][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1004.564505][ C2] irq event stamp: 753065
[ 1004.564720][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1004.565188][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1004.565655][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1004.566120][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1004.566587][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1004.567059][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1004.567664][ C2] Workqueue: netns cleanup_net
[ 1004.567908][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 1004.568230][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 1004.569189][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 1004.569493][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1004.569886][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1004.570284][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1004.570681][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1004.571073][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1004.571465][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1004.571904][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1004.572234][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1004.572631][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1004.573024][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1004.573418][ C2] PKRU: 55555554
[ 1004.573598][ C2] Call Trace:
[ 1004.573768][ C2]
[ 1004.573914][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1004.574173][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1004.574414][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1004.574687][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1004.574960][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1004.575243][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1004.575504][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1004.575806][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1004.576066][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1004.576384][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1004.576676][ C2]
[ 1004.576825][ C2]
[ 1004.576973][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1004.577284][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1004.577577][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1004.577867][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1004.578178][ C2] ? __pfx___schedule+0x10/0x10
[ 1004.578424][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1004.578672][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1004.578941][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1004.579225][ C2] ? lock_acquire+0x1c1/0x220
[ 1004.579460][ C2] ? __mutex_lock+0x33e/0xb10
[ 1004.579697][ C2] ? __mutex_lock+0x811/0xb10
[ 1004.579935][ C2] _raw_spin_lock+0x67/0x80
[ 1004.580164][ C2] __mutex_lock+0x33e/0xb10
[ 1004.580390][ C2] ? __lock_release+0x40f/0x880
[ 1004.580635][ C2] ? __pfx___lock_release+0x10/0x10
[ 1004.580894][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1004.581191][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1004.581444][ C2] ? __pfx___up_read+0x10/0x10
[ 1004.581684][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1004.581949][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1004.582219][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1004.582508][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1004.582799][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1004.583084][ C2] __tcf_action_put+0x3d/0xf0
[ 1004.583321][ C2] tcf_action_destroy+0x43/0x130
[ 1004.583569][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1004.583806][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1004.584124][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1004.584394][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1004.584692][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1004.584982][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1004.585267][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1004.585574][ C2] ? __lock_release+0x40f/0x880
[ 1004.585821][ C2] ? __mutex_lock+0x26e/0xb10
[ 1004.586060][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1004.586348][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1004.586654][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1004.586956][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1004.587204][ C2] tcf_chain_flush+0x1e0/0x320
[ 1004.587444][ C2] __tcf_block_put+0x113/0x270
[ 1004.587684][ C2] tcf_block_put+0xaf/0xf0
[ 1004.587910][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1004.588168][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1004.588436][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1004.588708][ C2] __qdisc_destroy+0xee/0x340
[ 1004.588950][ C2] dev_shutdown+0x164/0x350
[ 1004.589181][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1004.589500][ C2] ? mutex_is_locked+0x17/0x50
[ 1004.589740][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1004.590078][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1004.590394][ C2] default_device_exit_batch+0x234/0x2d0
[ 1004.590681][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1004.590991][ C2] ? ops_exit_list+0xb4/0x170
[ 1004.591229][ C2] cleanup_net+0x4f3/0xb60
[ 1004.591453][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1004.591736][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1004.591986][ C2] ? lock_acquire+0x1c1/0x220
[ 1004.592222][ C2] ? process_one_work+0x714/0x1310
[ 1004.592480][ C2] process_one_work+0x78c/0x1310
[ 1004.592731][ C2] ? hlock_class+0x4e/0x130
[ 1004.592961][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1004.593233][ C2] ? assign_work+0x16c/0x240
[ 1004.593466][ C2] worker_thread+0x73d/0x1010
[ 1004.593707][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1004.593968][ C2] kthread+0x28f/0x360
[ 1004.594176][ C2] ? __pfx_kthread+0x10/0x10
[ 1004.594412][ C2] ret_from_fork+0x31/0x70
[ 1004.594639][ C2] ? __pfx_kthread+0x10/0x10
[ 1004.594871][ C2] ret_from_fork_asm+0x1b/0x30
[ 1004.595118][ C2]
[ 1016.155937][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 1016.156338][ C2] rcu: 2-....: (883001 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=220335
[ 1016.156895][ C2] rcu: (t=884403 jiffies g=119533 q=6108 ncpus=4)
[ 1016.157234][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1016.157710][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1016.158321][ C2] Workqueue: netns cleanup_net
[ 1016.158567][ C2] RIP: 0010:report_enabled+0x19/0x30
[ 1016.158836][ C2] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 05 b9 a9 a4 05 48 d1 e8 83 e0 01 75 0d f0 48 0f ba 2d a7 a9 a4 05 00 <0f> 93 c0 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40
[ 1016.159806][ C2] RSP: 0018:ffffc900000bf1e0 EFLAGS: 00000247
[ 1016.160110][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb35b0
[ 1016.160504][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1016.160898][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1016.161294][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1016.161694][ C2] R13: ffffffffaeeb35b0 R14: 0000000000000004 R15: ffff888001c02640
[ 1016.162095][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1016.162537][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1016.162864][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1016.163270][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1016.163679][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1016.164074][ C2] PKRU: 55555554
[ 1016.164254][ C2] Call Trace:
[ 1016.164428][ C2]
[ 1016.164578][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 1016.164854][ C2] ? print_cpu_stall+0x263/0x6a0
[ 1016.165109][ C2] ? check_cpu_stall+0x284/0x500
[ 1016.165364][ C2] ? rcu_pending+0x92/0x360
[ 1016.165596][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 1016.165868][ C2] ? update_process_times+0xb9/0x110
[ 1016.166144][ C2] ? tick_sched_handle+0x67/0x130
[ 1016.166417][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 1016.166704][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1016.166950][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 1016.167268][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1016.167544][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1016.167834][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1016.168102][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1016.168412][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1016.168678][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1016.168992][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1016.169287][ C2]
[ 1016.169442][ C2]
[ 1016.169595][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1016.169905][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1016.170192][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1016.170484][ C2] ? report_enabled+0x19/0x30
[ 1016.170720][ C2] kasan_report+0x41/0xf0
[ 1016.170942][ C2] kasan_check_range+0x39/0x1c0
[ 1016.171195][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 1016.171473][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1016.171782][ C2] ? __pfx___schedule+0x10/0x10
[ 1016.172041][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1016.172292][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1016.172560][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1016.172845][ C2] ? lock_acquire+0x1c1/0x220
[ 1016.173083][ C2] ? __mutex_lock+0x33e/0xb10
[ 1016.173322][ C2] ? __mutex_lock+0x811/0xb10
[ 1016.173655][ C2] _raw_spin_lock+0x67/0x80
[ 1016.173995][ C2] __mutex_lock+0x33e/0xb10
[ 1016.174334][ C2] ? __lock_release+0x40f/0x880
[ 1016.174699][ C2] ? __pfx___lock_release+0x10/0x10
[ 1016.175081][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1016.175530][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1016.175915][ C2] ? __pfx___up_read+0x10/0x10
[ 1016.176296][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1016.176701][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1016.177071][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1016.177458][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1016.177869][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1016.178270][ C2] __tcf_action_put+0x3d/0xf0
[ 1016.178612][ C2] tcf_action_destroy+0x43/0x130
[ 1016.178971][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1016.179319][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1016.179793][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1016.180211][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1016.180671][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1016.181124][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1016.181564][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1016.182038][ C2] ? __lock_release+0x40f/0x880
[ 1016.182414][ C2] ? __mutex_lock+0x26e/0xb10
[ 1016.182778][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1016.183207][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1016.183677][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1016.184140][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1016.184514][ C2] tcf_chain_flush+0x1e0/0x320
[ 1016.184885][ C2] __tcf_block_put+0x113/0x270
[ 1016.185246][ C2] tcf_block_put+0xaf/0xf0
[ 1016.185586][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1016.185881][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1016.186152][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1016.186461][ C2] __qdisc_destroy+0xee/0x340
[ 1016.186699][ C2] dev_shutdown+0x164/0x350
[ 1016.186927][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1016.187245][ C2] ? mutex_is_locked+0x17/0x50
[ 1016.187494][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1016.187831][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1016.188143][ C2] default_device_exit_batch+0x234/0x2d0
[ 1016.188496][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1016.188854][ C2] ? ops_exit_list+0xb4/0x170
[ 1016.189092][ C2] cleanup_net+0x4f3/0xb60
[ 1016.189327][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1016.189609][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1016.189857][ C2] ? lock_acquire+0x1c1/0x220
[ 1016.190092][ C2] ? process_one_work+0x714/0x1310
[ 1016.190358][ C2] process_one_work+0x78c/0x1310
[ 1016.190609][ C2] ? hlock_class+0x4e/0x130
[ 1016.190839][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1016.191110][ C2] ? assign_work+0x16c/0x240
[ 1016.191353][ C2] worker_thread+0x73d/0x1010
[ 1016.191592][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1016.191848][ C2] kthread+0x28f/0x360
[ 1016.192053][ C2] ? __pfx_kthread+0x10/0x10
[ 1016.192285][ C2] ret_from_fork+0x31/0x70
[ 1016.192521][ C2] ? __pfx_kthread+0x10/0x10
[ 1016.192753][ C2] ret_from_fork_asm+0x1b/0x30
[ 1016.193001][ C2]
[ 1040.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 850s! [kworker/u8:0:11]
[ 1040.564084][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1040.564497][ C2] irq event stamp: 753065
[ 1040.564714][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1040.565180][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1040.565647][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1040.566120][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1040.566577][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1040.567045][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1040.567654][ C2] Workqueue: netns cleanup_net
[ 1040.567898][ C2] RIP: 0010:report_enabled+0x19/0x30
[ 1040.568167][ C2] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 05 b9 a9 a4 05 48 d1 e8 83 e0 01 75 0d f0 48 0f ba 2d a7 a9 a4 05 00 <0f> 93 c0 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40
[ 1040.569131][ C2] RSP: 0018:ffffc900000bf200 EFLAGS: 00000247
[ 1040.569436][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb3f0c
[ 1040.569830][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1040.570226][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1040.570626][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1040.571021][ C2] R13: ffffffffaeeb3f0c R14: 0000000000000004 R15: ffff888001c02640
[ 1040.571416][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1040.571861][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1040.572190][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1040.572589][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1040.572983][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1040.573378][ C2] PKRU: 55555554
[ 1040.573558][ C2] Call Trace:
[ 1040.573728][ C2]
[ 1040.573875][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1040.574136][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1040.574377][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1040.574651][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1040.574922][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1040.575208][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1040.575471][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1040.575775][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1040.576043][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1040.576350][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1040.576640][ C2]
[ 1040.576791][ C2]
[ 1040.576939][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1040.577250][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1040.577544][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1040.577834][ C2] ? report_enabled+0x19/0x30
[ 1040.578073][ C2] kasan_report+0x41/0xf0
[ 1040.578295][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 1040.578578][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1040.578889][ C2] ? __pfx___schedule+0x10/0x10
[ 1040.579136][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1040.579383][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1040.579653][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1040.579934][ C2] ? lock_acquire+0x1c1/0x220
[ 1040.580172][ C2] ? __mutex_lock+0x33e/0xb10
[ 1040.580410][ C2] ? __mutex_lock+0x811/0xb10
[ 1040.580645][ C2] _raw_spin_lock+0x67/0x80
[ 1040.580875][ C2] __mutex_lock+0x33e/0xb10
[ 1040.581106][ C2] ? __lock_release+0x40f/0x880
[ 1040.581350][ C2] ? __pfx___lock_release+0x10/0x10
[ 1040.581611][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1040.581903][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1040.582162][ C2] ? __pfx___up_read+0x10/0x10
[ 1040.582404][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1040.582669][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1040.582936][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1040.583225][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1040.583522][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1040.583804][ C2] __tcf_action_put+0x3d/0xf0
[ 1040.584045][ C2] tcf_action_destroy+0x43/0x130
[ 1040.584294][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1040.584530][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1040.584845][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1040.585117][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1040.585414][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1040.585708][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1040.585991][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1040.586308][ C2] ? __lock_release+0x40f/0x880
[ 1040.586554][ C2] ? __mutex_lock+0x26e/0xb10
[ 1040.586790][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1040.587072][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1040.587376][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1040.587676][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1040.587923][ C2] tcf_chain_flush+0x1e0/0x320
[ 1040.588166][ C2] __tcf_block_put+0x113/0x270
[ 1040.588408][ C2] tcf_block_put+0xaf/0xf0
[ 1040.588631][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1040.588888][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1040.589162][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1040.589435][ C2] __qdisc_destroy+0xee/0x340
[ 1040.589673][ C2] dev_shutdown+0x164/0x350
[ 1040.589901][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1040.590221][ C2] ? mutex_is_locked+0x17/0x50
[ 1040.590462][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1040.590798][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1040.591113][ C2] default_device_exit_batch+0x234/0x2d0
[ 1040.591400][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1040.591709][ C2] ? ops_exit_list+0xb4/0x170
[ 1040.591945][ C2] cleanup_net+0x4f3/0xb60
[ 1040.592170][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1040.592452][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1040.592704][ C2] ? lock_acquire+0x1c1/0x220
[ 1040.592944][ C2] ? process_one_work+0x714/0x1310
[ 1040.593206][ C2] process_one_work+0x78c/0x1310
[ 1040.593461][ C2] ? hlock_class+0x4e/0x130
[ 1040.593693][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1040.593967][ C2] ? assign_work+0x16c/0x240
[ 1040.594201][ C2] worker_thread+0x73d/0x1010
[ 1040.594438][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1040.594694][ C2] kthread+0x28f/0x360
[ 1040.594902][ C2] ? __pfx_kthread+0x10/0x10
[ 1040.595133][ C2] ret_from_fork+0x31/0x70
[ 1040.595357][ C2] ? __pfx_kthread+0x10/0x10
[ 1040.595589][ C2] ret_from_fork_asm+0x1b/0x30
[ 1040.595833][ C2]
[ 1049.927969][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 917869 jiffies s: 4309 root: 0x4/.
[ 1049.928887][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 1049.929379][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 1049.929675][ C2] NMI backtrace for cpu 2
[ 1049.929683][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1049.929687][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1049.929690][ C2] Workqueue: netns cleanup_net
[ 1049.929697][ C2] RIP: 0010:kasan_report+0x29/0xf0
[ 1049.929703][ C2] Code: 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca 65 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 <85> c0 0f 85 b7 00 00 00 48 89 fd 49 89 f6 89 d3 49 89 cd e8 0f f7
[ 1049.929706][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 1049.929708][ C2] RAX: 0000000000000000 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 1049.929710][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1049.929711][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 1049.929713][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1049.929715][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: ffff888001c02640
[ 1049.929716][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1049.929718][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1049.929722][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1049.929723][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1049.929724][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1049.929726][ C2] PKRU: 55555554
[ 1049.929727][ C2] Call Trace:
[ 1049.929729][ C2]
[ 1049.929732][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 1049.929738][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 1049.929743][ C2] ? nmi_handle+0x153/0x420
[ 1049.929748][ C2] ? default_do_nmi+0x41/0x100
[ 1049.929752][ C2] ? exc_nmi+0xf3/0x120
[ 1049.929754][ C2] ? end_repeat_nmi+0xf/0x60
[ 1049.929759][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1049.929763][ C2] ? kasan_report+0x29/0xf0
[ 1049.929766][ C2] ? kasan_report+0x29/0xf0
[ 1049.929769][ C2] ? kasan_report+0x29/0xf0
[ 1049.929772][ C2]
[ 1049.929773][ C2]
[ 1049.929776][ C2] kasan_check_range+0x39/0x1c0
[ 1049.929781][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 1049.929785][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1049.929789][ C2] ? __pfx___schedule+0x10/0x10
[ 1049.929794][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1049.929799][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1049.929802][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1049.929805][ C2] ? lock_acquire+0x1c1/0x220
[ 1049.929808][ C2] ? __mutex_lock+0x33e/0xb10
[ 1049.929811][ C2] ? __mutex_lock+0x811/0xb10
[ 1049.929814][ C2] _raw_spin_lock+0x67/0x80
[ 1049.929817][ C2] __mutex_lock+0x33e/0xb10
[ 1049.929820][ C2] ? __lock_release+0x40f/0x880
[ 1049.929823][ C2] ? __pfx___lock_release+0x10/0x10
[ 1049.929826][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1049.929831][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1049.929834][ C2] ? __pfx___up_read+0x10/0x10
[ 1049.929838][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1049.929840][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1049.929844][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1049.929851][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1049.929854][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1049.929858][ C2] __tcf_action_put+0x3d/0xf0
[ 1049.929862][ C2] tcf_action_destroy+0x43/0x130
[ 1049.929865][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1049.929868][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1049.929878][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1049.929887][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1049.929895][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1049.929904][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1049.929913][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1049.929921][ C2] ? __lock_release+0x40f/0x880
[ 1049.929924][ C2] ? __mutex_lock+0x26e/0xb10
[ 1049.929928][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1049.929939][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1049.929947][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1049.929951][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1049.929955][ C2] tcf_chain_flush+0x1e0/0x320
[ 1049.929959][ C2] __tcf_block_put+0x113/0x270
[ 1049.929963][ C2] tcf_block_put+0xaf/0xf0
[ 1049.929966][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1049.929970][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1049.929976][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1049.929982][ C2] __qdisc_destroy+0xee/0x340
[ 1049.929986][ C2] dev_shutdown+0x164/0x350
[ 1049.929990][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1049.929994][ C2] ? mutex_is_locked+0x17/0x50
[ 1049.929997][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1049.929999][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1049.930004][ C2] default_device_exit_batch+0x234/0x2d0
[ 1049.930007][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1049.930010][ C2] ? ops_exit_list+0xb4/0x170
[ 1049.930013][ C2] cleanup_net+0x4f3/0xb60
[ 1049.930016][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1049.930018][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1049.930022][ C2] ? lock_acquire+0x1c1/0x220
[ 1049.930024][ C2] ? process_one_work+0x714/0x1310
[ 1049.930028][ C2] process_one_work+0x78c/0x1310
[ 1049.930033][ C2] ? hlock_class+0x4e/0x130
[ 1049.930036][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1049.930040][ C2] ? assign_work+0x16c/0x240
[ 1049.930044][ C2] worker_thread+0x73d/0x1010
[ 1049.930049][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1049.930051][ C2] kthread+0x28f/0x360
[ 1049.930054][ C2] ? __pfx_kthread+0x10/0x10
[ 1049.930056][ C2] ret_from_fork+0x31/0x70
[ 1049.930059][ C2] ? __pfx_kthread+0x10/0x10
[ 1049.930061][ C2] ret_from_fork_asm+0x1b/0x30
[ 1049.930069][ C2]
[ 1076.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 883s! [kworker/u8:0:11]
[ 1076.564083][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1076.564499][ C2] irq event stamp: 753065
[ 1076.564715][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1076.565186][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1076.565654][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1076.566126][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1076.566584][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1076.567054][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1076.567659][ C2] Workqueue: netns cleanup_net
[ 1076.567903][ C2] RIP: 0010:kasan_report+0xd2/0xf0
[ 1076.568164][ C2] Code: 24 28 4c 89 6c 24 30 e8 7c f5 ff ff 48 8d 7c 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd ff ff ff 34 24 9d <48> 83 c4 70 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc
[ 1076.569123][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000282
[ 1076.569428][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb3f0c
[ 1076.569821][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1076.570217][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1076.570612][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000000
[ 1076.571008][ C2] R13: ffffffffaeeb3f0c R14: 0000000000000004 R15: ffff888001c02640
[ 1076.571400][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1076.571842][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1076.572173][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1076.572571][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1076.572965][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1076.573359][ C2] PKRU: 55555554
[ 1076.573539][ C2] Call Trace:
[ 1076.573710][ C2]
[ 1076.573856][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1076.574118][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1076.574360][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1076.574634][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1076.574905][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1076.575192][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1076.575454][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1076.575758][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1076.576027][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1076.576333][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1076.576625][ C2]
[ 1076.576775][ C2]
[ 1076.576923][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1076.577237][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1076.577531][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1076.577822][ C2] ? kasan_report+0xd2/0xf0
[ 1076.578055][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1076.578343][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 1076.578626][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1076.578937][ C2] ? __pfx___schedule+0x10/0x10
[ 1076.579185][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1076.579432][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1076.579702][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1076.579986][ C2] ? lock_acquire+0x1c1/0x220
[ 1076.580224][ C2] ? __mutex_lock+0x33e/0xb10
[ 1076.580464][ C2] ? __mutex_lock+0x811/0xb10
[ 1076.580700][ C2] _raw_spin_lock+0x67/0x80
[ 1076.580929][ C2] __mutex_lock+0x33e/0xb10
[ 1076.581174][ C2] ? __lock_release+0x40f/0x880
[ 1076.581420][ C2] ? __pfx___lock_release+0x10/0x10
[ 1076.581680][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1076.581973][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1076.582231][ C2] ? __pfx___up_read+0x10/0x10
[ 1076.582474][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1076.582738][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1076.583008][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1076.583295][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1076.583588][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1076.583870][ C2] __tcf_action_put+0x3d/0xf0
[ 1076.584112][ C2] tcf_action_destroy+0x43/0x130
[ 1076.584361][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1076.584601][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1076.584917][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1076.585190][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1076.585485][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1076.585779][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1076.586072][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1076.586382][ C2] ? __lock_release+0x40f/0x880
[ 1076.586628][ C2] ? __mutex_lock+0x26e/0xb10
[ 1076.586867][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1076.587148][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1076.587456][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1076.587756][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1076.588006][ C2] tcf_chain_flush+0x1e0/0x320
[ 1076.588252][ C2] __tcf_block_put+0x113/0x270
[ 1076.588497][ C2] tcf_block_put+0xaf/0xf0
[ 1076.588724][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1076.588985][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1076.589254][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1076.589526][ C2] __qdisc_destroy+0xee/0x340
[ 1076.589765][ C2] dev_shutdown+0x164/0x350
[ 1076.589993][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1076.590312][ C2] ? mutex_is_locked+0x17/0x50
[ 1076.590553][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1076.590889][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1076.591203][ C2] default_device_exit_batch+0x234/0x2d0
[ 1076.591487][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1076.591797][ C2] ? ops_exit_list+0xb4/0x170
[ 1076.592034][ C2] cleanup_net+0x4f3/0xb60
[ 1076.592258][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1076.592539][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1076.592787][ C2] ? lock_acquire+0x1c1/0x220
[ 1076.593025][ C2] ? process_one_work+0x714/0x1310
[ 1076.593284][ C2] process_one_work+0x78c/0x1310
[ 1076.593534][ C2] ? hlock_class+0x4e/0x130
[ 1076.593764][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1076.594036][ C2] ? assign_work+0x16c/0x240
[ 1076.594270][ C2] worker_thread+0x73d/0x1010
[ 1076.594508][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1076.594766][ C2] kthread+0x28f/0x360
[ 1076.594974][ C2] ? __pfx_kthread+0x10/0x10
[ 1076.595204][ C2] ret_from_fork+0x31/0x70
[ 1076.595430][ C2] ? __pfx_kthread+0x10/0x10
[ 1076.595665][ C2] ret_from_fork_asm+0x1b/0x30
[ 1076.595919][ C2]
[ 1094.193936][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 1094.194309][ C2] rcu: 2-....: (960913 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=239798
[ 1094.194848][ C2] rcu: (t=962441 jiffies g=119533 q=6111 ncpus=4)
[ 1094.195176][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1094.195643][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1094.196272][ C2] Workqueue: netns cleanup_net
[ 1094.196521][ C2] RIP: 0010:kasan_report+0x22/0xf0
[ 1094.196782][ C2] Code: 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca 65 4c 8b 3c 25 80 b8 1f 00 <41> 8b 87 e0 17 00 00 85 c0 0f 85 b7 00 00 00 48 89 fd 49 89 f6 89
[ 1094.197744][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 1094.198049][ C2] RAX: 0000000000000001 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 1094.198444][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1094.198837][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 1094.199234][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1094.199630][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: ffff888001c02640
[ 1094.200025][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1094.200468][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1094.200798][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1094.201195][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1094.201592][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1094.201985][ C2] PKRU: 55555554
[ 1094.202165][ C2] Call Trace:
[ 1094.202335][ C2]
[ 1094.202482][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 1094.202752][ C2] ? print_cpu_stall+0x263/0x6a0
[ 1094.203003][ C2] ? check_cpu_stall+0x284/0x500
[ 1094.203253][ C2] ? rcu_pending+0x92/0x360
[ 1094.203483][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 1094.203749][ C2] ? update_process_times+0xb9/0x110
[ 1094.204017][ C2] ? tick_sched_handle+0x67/0x130
[ 1094.204271][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 1094.204552][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1094.204792][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 1094.205101][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1094.205370][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1094.205657][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1094.205927][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1094.206230][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1094.206490][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1094.206797][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1094.207088][ C2]
[ 1094.207238][ C2]
[ 1094.207386][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1094.207698][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1094.207984][ C2] ? kasan_report+0x22/0xf0
[ 1094.208217][ C2] kasan_check_range+0x39/0x1c0
[ 1094.208465][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 1094.208742][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1094.209052][ C2] ? __pfx___schedule+0x10/0x10
[ 1094.209299][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1094.209547][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1094.209819][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1094.210102][ C2] ? lock_acquire+0x1c1/0x220
[ 1094.210336][ C2] ? __mutex_lock+0x33e/0xb10
[ 1094.210575][ C2] ? __mutex_lock+0x811/0xb10
[ 1094.210817][ C2] _raw_spin_lock+0x67/0x80
[ 1094.211049][ C2] __mutex_lock+0x33e/0xb10
[ 1094.211277][ C2] ? __lock_release+0x40f/0x880
[ 1094.211522][ C2] ? __pfx___lock_release+0x10/0x10
[ 1094.211783][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1094.212081][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1094.212339][ C2] ? __pfx___up_read+0x10/0x10
[ 1094.212588][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1094.212858][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1094.213125][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1094.213413][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1094.213710][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1094.213998][ C2] __tcf_action_put+0x3d/0xf0
[ 1094.214242][ C2] tcf_action_destroy+0x43/0x130
[ 1094.214496][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1094.214738][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1094.215059][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1094.215341][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1094.215648][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1094.215952][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1094.216246][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1094.216558][ C2] ? __lock_release+0x40f/0x880
[ 1094.216809][ C2] ? __mutex_lock+0x26e/0xb10
[ 1094.217053][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1094.217336][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1094.217651][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1094.217957][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1094.218206][ C2] tcf_chain_flush+0x1e0/0x320
[ 1094.218450][ C2] __tcf_block_put+0x113/0x270
[ 1094.218698][ C2] tcf_block_put+0xaf/0xf0
[ 1094.218929][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1094.219189][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1094.219467][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1094.219743][ C2] __qdisc_destroy+0xee/0x340
[ 1094.219981][ C2] dev_shutdown+0x164/0x350
[ 1094.220211][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1094.220529][ C2] ? mutex_is_locked+0x17/0x50
[ 1094.220768][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1094.221107][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1094.221421][ C2] default_device_exit_batch+0x234/0x2d0
[ 1094.221701][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1094.222009][ C2] ? ops_exit_list+0xb4/0x170
[ 1094.222247][ C2] cleanup_net+0x4f3/0xb60
[ 1094.222469][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1094.222753][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1094.223001][ C2] ? lock_acquire+0x1c1/0x220
[ 1094.223234][ C2] ? process_one_work+0x714/0x1310
[ 1094.223494][ C2] process_one_work+0x78c/0x1310
[ 1094.223742][ C2] ? hlock_class+0x4e/0x130
[ 1094.223973][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1094.224243][ C2] ? assign_work+0x16c/0x240
[ 1094.224478][ C2] worker_thread+0x73d/0x1010
[ 1094.224719][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1094.224979][ C2] kthread+0x28f/0x360
[ 1094.225183][ C2] ? __pfx_kthread+0x10/0x10
[ 1094.225415][ C2] ret_from_fork+0x31/0x70
[ 1094.225637][ C2] ? __pfx_kthread+0x10/0x10
[ 1094.225883][ C2] ret_from_fork_asm+0x1b/0x30
[ 1094.226129][ C2]
[ 1120.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 924s! [kworker/u8:0:11]
[ 1120.564081][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1120.564493][ C2] irq event stamp: 753065
[ 1120.564713][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1120.565180][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1120.565656][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1120.566124][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1120.566583][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1120.567053][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1120.567665][ C2] Workqueue: netns cleanup_net
[ 1120.567908][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 1120.568231][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 1120.569192][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 1120.569495][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1120.569890][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1120.570284][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1120.570678][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1120.571076][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1120.571471][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1120.571912][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1120.572242][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1120.572638][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1120.573036][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1120.573435][ C2] PKRU: 55555554
[ 1120.573615][ C2] Call Trace:
[ 1120.573784][ C2]
[ 1120.573933][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1120.574195][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1120.574437][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1120.574711][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1120.574983][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1120.575270][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1120.575533][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1120.575842][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1120.576104][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1120.576411][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1120.576703][ C2]
[ 1120.576853][ C2]
[ 1120.577004][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1120.577321][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1120.577611][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1120.577911][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1120.578223][ C2] ? __pfx___schedule+0x10/0x10
[ 1120.578472][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1120.578721][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1120.578992][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1120.579273][ C2] ? lock_acquire+0x1c1/0x220
[ 1120.579514][ C2] ? __mutex_lock+0x33e/0xb10
[ 1120.579753][ C2] ? __mutex_lock+0x811/0xb10
[ 1120.579992][ C2] _raw_spin_lock+0x67/0x80
[ 1120.580220][ C2] __mutex_lock+0x33e/0xb10
[ 1120.580450][ C2] ? __lock_release+0x40f/0x880
[ 1120.580697][ C2] ? __pfx___lock_release+0x10/0x10
[ 1120.580959][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1120.581253][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1120.581508][ C2] ? __pfx___up_read+0x10/0x10
[ 1120.581750][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1120.582018][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1120.582291][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1120.582579][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1120.582873][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1120.583158][ C2] __tcf_action_put+0x3d/0xf0
[ 1120.583398][ C2] tcf_action_destroy+0x43/0x130
[ 1120.583649][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1120.583887][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1120.584204][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1120.584478][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1120.584773][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1120.585068][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1120.585352][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1120.585667][ C2] ? __lock_release+0x40f/0x880
[ 1120.585914][ C2] ? __mutex_lock+0x26e/0xb10
[ 1120.586155][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1120.586434][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1120.586740][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1120.587043][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1120.587290][ C2] tcf_chain_flush+0x1e0/0x320
[ 1120.587533][ C2] __tcf_block_put+0x113/0x270
[ 1120.587776][ C2] tcf_block_put+0xaf/0xf0
[ 1120.588002][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1120.588262][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1120.588531][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1120.588805][ C2] __qdisc_destroy+0xee/0x340
[ 1120.589046][ C2] dev_shutdown+0x164/0x350
[ 1120.589274][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1120.589593][ C2] ? mutex_is_locked+0x17/0x50
[ 1120.589836][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1120.590174][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1120.590487][ C2] default_device_exit_batch+0x234/0x2d0
[ 1120.590773][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1120.591084][ C2] ? ops_exit_list+0xb4/0x170
[ 1120.591321][ C2] cleanup_net+0x4f3/0xb60
[ 1120.591549][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1120.591832][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1120.592082][ C2] ? lock_acquire+0x1c1/0x220
[ 1120.592319][ C2] ? process_one_work+0x714/0x1310
[ 1120.592579][ C2] process_one_work+0x78c/0x1310
[ 1120.592831][ C2] ? hlock_class+0x4e/0x130
[ 1120.593063][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1120.593336][ C2] ? assign_work+0x16c/0x240
[ 1120.593570][ C2] worker_thread+0x73d/0x1010
[ 1120.593811][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1120.594073][ C2] kthread+0x28f/0x360
[ 1120.594282][ C2] ? __pfx_kthread+0x10/0x10
[ 1120.594518][ C2] ret_from_fork+0x31/0x70
[ 1120.594746][ C2] ? __pfx_kthread+0x10/0x10
[ 1120.594985][ C2] ret_from_fork_asm+0x1b/0x30
[ 1120.595235][ C2]
[ 1148.231963][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 1016173 jiffies s: 4309 root: 0x4/.
[ 1148.232593][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 1148.232951][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 1148.233219][ C2] NMI backtrace for cpu 2
[ 1148.233224][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1148.233229][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1148.233232][ C2] Workqueue: netns cleanup_net
[ 1148.233239][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 1148.233246][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 1148.233249][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 1148.233251][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1148.233253][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1148.233255][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1148.233256][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1148.233258][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1148.233260][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1148.233262][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1148.233265][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1148.233267][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1148.233268][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1148.233270][ C2] PKRU: 55555554
[ 1148.233270][ C2] Call Trace:
[ 1148.233273][ C2]
[ 1148.233276][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 1148.233282][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 1148.233286][ C2] ? nmi_handle+0x153/0x420
[ 1148.233291][ C2] ? default_do_nmi+0x41/0x100
[ 1148.233295][ C2] ? exc_nmi+0xf3/0x120
[ 1148.233298][ C2] ? end_repeat_nmi+0xf/0x60
[ 1148.233302][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1148.233306][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1148.233309][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1148.233313][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1148.233316][ C2]
[ 1148.233317][ C2]
[ 1148.233318][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1148.233322][ C2] ? __pfx___schedule+0x10/0x10
[ 1148.233327][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1148.233333][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1148.233335][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1148.233339][ C2] ? lock_acquire+0x1c1/0x220
[ 1148.233341][ C2] ? __mutex_lock+0x33e/0xb10
[ 1148.233345][ C2] ? __mutex_lock+0x811/0xb10
[ 1148.233347][ C2] _raw_spin_lock+0x67/0x80
[ 1148.233350][ C2] __mutex_lock+0x33e/0xb10
[ 1148.233354][ C2] ? __lock_release+0x40f/0x880
[ 1148.233357][ C2] ? __pfx___lock_release+0x10/0x10
[ 1148.233359][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1148.233365][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1148.233368][ C2] ? __pfx___up_read+0x10/0x10
[ 1148.233372][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1148.233375][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1148.233379][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1148.233385][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1148.233388][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1148.233392][ C2] __tcf_action_put+0x3d/0xf0
[ 1148.233396][ C2] tcf_action_destroy+0x43/0x130
[ 1148.233400][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1148.233403][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1148.233414][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1148.233422][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1148.233431][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1148.233440][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1148.233449][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1148.233457][ C2] ? __lock_release+0x40f/0x880
[ 1148.233460][ C2] ? __mutex_lock+0x26e/0xb10
[ 1148.233464][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1148.233473][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1148.233482][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1148.233486][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1148.233490][ C2] tcf_chain_flush+0x1e0/0x320
[ 1148.233494][ C2] __tcf_block_put+0x113/0x270
[ 1148.233498][ C2] tcf_block_put+0xaf/0xf0
[ 1148.233501][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1148.233505][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1148.233512][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1148.233518][ C2] __qdisc_destroy+0xee/0x340
[ 1148.233522][ C2] dev_shutdown+0x164/0x350
[ 1148.233525][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1148.233530][ C2] ? mutex_is_locked+0x17/0x50
[ 1148.233533][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1148.233536][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1148.233540][ C2] default_device_exit_batch+0x234/0x2d0
[ 1148.233543][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1148.233546][ C2] ? ops_exit_list+0xb4/0x170
[ 1148.233549][ C2] cleanup_net+0x4f3/0xb60
[ 1148.233552][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1148.233555][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1148.233558][ C2] ? lock_acquire+0x1c1/0x220
[ 1148.233560][ C2] ? process_one_work+0x714/0x1310
[ 1148.233565][ C2] process_one_work+0x78c/0x1310
[ 1148.233569][ C2] ? hlock_class+0x4e/0x130
[ 1148.233573][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1148.233577][ C2] ? assign_work+0x16c/0x240
[ 1148.233580][ C2] worker_thread+0x73d/0x1010
[ 1148.233586][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1148.233588][ C2] kthread+0x28f/0x360
[ 1148.233591][ C2] ? __pfx_kthread+0x10/0x10
[ 1148.233594][ C2] ret_from_fork+0x31/0x70
[ 1148.233597][ C2] ? __pfx_kthread+0x10/0x10
[ 1148.233599][ C2] ret_from_fork_asm+0x1b/0x30
[ 1148.233607][ C2]
[ 1172.226936][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 1172.227312][ C2] rcu: 2-....: (1038858 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=259229
[ 1172.227857][ C2] rcu: (t=1040474 jiffies g=119533 q=6111 ncpus=4)
[ 1172.228188][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1172.228656][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1172.229265][ C2] Workqueue: netns cleanup_net
[ 1172.229518][ C2] RIP: 0010:kasan_check_range+0x16/0x1c0
[ 1172.229802][ C2] Code: 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 85 f6 0f 84 5e 01 00 00 48 89 f8 41 54 44 0f b6 c2 <48> 01 f0 55 53 72 14 eb 26 cc cc cc 48 b8 ff ff ff ff ff ff ff fe
[ 1172.230762][ C2] RSP: 0018:ffffc900000bf2a0 EFLAGS: 00000202
[ 1172.231069][ C2] RAX: ffff8880380fd008 RBX: 000000000000000b RCX: ffffffffaeeb35b0
[ 1172.231463][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1172.231860][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1172.232259][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1172.232653][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1172.233048][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1172.233490][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1172.233822][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1172.234221][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1172.234615][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1172.235010][ C2] PKRU: 55555554
[ 1172.235189][ C2] Call Trace:
[ 1172.235365][ C2]
[ 1172.235511][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 1172.235784][ C2] ? print_cpu_stall+0x263/0x6a0
[ 1172.236034][ C2] ? check_cpu_stall+0x284/0x500
[ 1172.236282][ C2] ? rcu_pending+0x92/0x360
[ 1172.236512][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 1172.236778][ C2] ? update_process_times+0xb9/0x110
[ 1172.237045][ C2] ? tick_sched_handle+0x67/0x130
[ 1172.237300][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 1172.237584][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1172.237825][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 1172.238133][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1172.238404][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1172.238688][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1172.238951][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1172.239254][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1172.239513][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1172.239818][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1172.240114][ C2]
[ 1172.240263][ C2]
[ 1172.240411][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1172.240726][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1172.241017][ C2] ? kasan_check_range+0x16/0x1c0
[ 1172.241272][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 1172.241550][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1172.241860][ C2] ? __pfx___schedule+0x10/0x10
[ 1172.242109][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1172.242358][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1172.242627][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1172.242909][ C2] ? lock_acquire+0x1c1/0x220
[ 1172.243147][ C2] ? __mutex_lock+0x33e/0xb10
[ 1172.243386][ C2] ? __mutex_lock+0x811/0xb10
[ 1172.243624][ C2] _raw_spin_lock+0x67/0x80
[ 1172.243853][ C2] __mutex_lock+0x33e/0xb10
[ 1172.244084][ C2] ? __lock_release+0x40f/0x880
[ 1172.244331][ C2] ? __pfx___lock_release+0x10/0x10
[ 1172.244593][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1172.244889][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1172.245147][ C2] ? __pfx___up_read+0x10/0x10
[ 1172.245401][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1172.245672][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1172.245943][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1172.246238][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1172.246541][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1172.246833][ C2] __tcf_action_put+0x3d/0xf0
[ 1172.247079][ C2] tcf_action_destroy+0x43/0x130
[ 1172.247334][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1172.247574][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1172.247892][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1172.248164][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1172.248463][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1172.248757][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1172.249042][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1172.249351][ C2] ? __lock_release+0x40f/0x880
[ 1172.249599][ C2] ? __mutex_lock+0x26e/0xb10
[ 1172.249839][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1172.250120][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1172.250429][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1172.250738][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1172.250993][ C2] tcf_chain_flush+0x1e0/0x320
[ 1172.251235][ C2] __tcf_block_put+0x113/0x270
[ 1172.251479][ C2] tcf_block_put+0xaf/0xf0
[ 1172.251705][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1172.251964][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1172.252233][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1172.252506][ C2] __qdisc_destroy+0xee/0x340
[ 1172.252744][ C2] dev_shutdown+0x164/0x350
[ 1172.252974][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1172.253294][ C2] ? mutex_is_locked+0x17/0x50
[ 1172.253533][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1172.253872][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1172.254186][ C2] default_device_exit_batch+0x234/0x2d0
[ 1172.254468][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1172.254778][ C2] ? ops_exit_list+0xb4/0x170
[ 1172.255017][ C2] cleanup_net+0x4f3/0xb60
[ 1172.255241][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1172.255529][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1172.255778][ C2] ? lock_acquire+0x1c1/0x220
[ 1172.256013][ C2] ? process_one_work+0x714/0x1310
[ 1172.256272][ C2] process_one_work+0x78c/0x1310
[ 1172.256522][ C2] ? hlock_class+0x4e/0x130
[ 1172.256753][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1172.257024][ C2] ? assign_work+0x16c/0x240
[ 1172.257258][ C2] worker_thread+0x73d/0x1010
[ 1172.257498][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1172.257755][ C2] kthread+0x28f/0x360
[ 1172.257961][ C2] ? __pfx_kthread+0x10/0x10
[ 1172.258195][ C2] ret_from_fork+0x31/0x70
[ 1172.258418][ C2] ? __pfx_kthread+0x10/0x10
[ 1172.258651][ C2] ret_from_fork_asm+0x1b/0x30
[ 1172.258900][ C2]
[ 1196.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 995s! [kworker/u8:0:11]
[ 1196.564086][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1196.564497][ C2] irq event stamp: 753065
[ 1196.564716][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1196.565182][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1196.565659][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1196.566126][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1196.566583][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1196.567055][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1196.567666][ C2] Workqueue: netns cleanup_net
[ 1196.567910][ C2] RIP: 0010:report_enabled+0x19/0x30
[ 1196.568179][ C2] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 05 b9 a9 a4 05 48 d1 e8 83 e0 01 75 0d f0 48 0f ba 2d a7 a9 a4 05 00 <0f> 93 c0 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40
[ 1196.569141][ C2] RSP: 0018:ffffc900000bf200 EFLAGS: 00000247
[ 1196.569447][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb3f0c
[ 1196.569841][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1196.570236][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1196.570636][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1196.571031][ C2] R13: ffffffffaeeb3f0c R14: 0000000000000004 R15: ffff888001c02640
[ 1196.571425][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1196.571868][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1196.572196][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1196.572595][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1196.572991][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1196.573385][ C2] PKRU: 55555554
[ 1196.573565][ C2] Call Trace:
[ 1196.573735][ C2]
[ 1196.573881][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1196.574147][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1196.574388][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1196.574665][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1196.574935][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1196.575229][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1196.575491][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1196.575794][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1196.576055][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1196.576362][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1196.576652][ C2]
[ 1196.576803][ C2]
[ 1196.576951][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1196.577263][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1196.577556][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1196.577848][ C2] ? report_enabled+0x19/0x30
[ 1196.578086][ C2] kasan_report+0x41/0xf0
[ 1196.578303][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1196.578597][ C2] ? kasan_report+0xd6/0xf0
[ 1196.578828][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 1196.579115][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1196.579425][ C2] ? __pfx___schedule+0x10/0x10
[ 1196.579674][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1196.579922][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1196.580192][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1196.580474][ C2] ? lock_acquire+0x1c1/0x220
[ 1196.580711][ C2] ? __mutex_lock+0x33e/0xb10
[ 1196.580949][ C2] ? __mutex_lock+0x811/0xb10
[ 1196.581187][ C2] _raw_spin_lock+0x67/0x80
[ 1196.581414][ C2] __mutex_lock+0x33e/0xb10
[ 1196.581644][ C2] ? __lock_release+0x40f/0x880
[ 1196.581889][ C2] ? __pfx___lock_release+0x10/0x10
[ 1196.582155][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1196.582449][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1196.582702][ C2] ? __pfx___up_read+0x10/0x10
[ 1196.582942][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1196.583210][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1196.583478][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1196.583766][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1196.584061][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1196.584342][ C2] __tcf_action_put+0x3d/0xf0
[ 1196.584581][ C2] tcf_action_destroy+0x43/0x130
[ 1196.584831][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1196.585068][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1196.585395][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1196.585668][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1196.585964][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1196.586260][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1196.586543][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1196.586851][ C2] ? __lock_release+0x40f/0x880
[ 1196.587098][ C2] ? __mutex_lock+0x26e/0xb10
[ 1196.587337][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1196.587616][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1196.587922][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1196.588223][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1196.588474][ C2] tcf_chain_flush+0x1e0/0x320
[ 1196.588719][ C2] __tcf_block_put+0x113/0x270
[ 1196.588962][ C2] tcf_block_put+0xaf/0xf0
[ 1196.589188][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1196.589446][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1196.589715][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1196.589988][ C2] __qdisc_destroy+0xee/0x340
[ 1196.590226][ C2] dev_shutdown+0x164/0x350
[ 1196.590455][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1196.590774][ C2] ? mutex_is_locked+0x17/0x50
[ 1196.591015][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1196.591353][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1196.591668][ C2] default_device_exit_batch+0x234/0x2d0
[ 1196.591949][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1196.592259][ C2] ? ops_exit_list+0xb4/0x170
[ 1196.592495][ C2] cleanup_net+0x4f3/0xb60
[ 1196.592718][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1196.593002][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1196.593250][ C2] ? lock_acquire+0x1c1/0x220
[ 1196.593485][ C2] ? process_one_work+0x714/0x1310
[ 1196.593744][ C2] process_one_work+0x78c/0x1310
[ 1196.593994][ C2] ? hlock_class+0x4e/0x130
[ 1196.594225][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1196.594496][ C2] ? assign_work+0x16c/0x240
[ 1196.594730][ C2] worker_thread+0x73d/0x1010
[ 1196.594970][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1196.595236][ C2] kthread+0x28f/0x360
[ 1196.595442][ C2] ? __pfx_kthread+0x10/0x10
[ 1196.595674][ C2] ret_from_fork+0x31/0x70
[ 1196.595897][ C2] ? __pfx_kthread+0x10/0x10
[ 1196.596134][ C2] ret_from_fork_asm+0x1b/0x30
[ 1196.596383][ C2]
[ 1224.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1021s! [kworker/u8:0:11]
[ 1224.564089][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1224.564501][ C2] irq event stamp: 753065
[ 1224.564718][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1224.565189][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1224.565653][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1224.566119][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1224.566575][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1224.567040][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1224.567647][ C2] Workqueue: netns cleanup_net
[ 1224.567890][ C2] RIP: 0010:queued_spin_lock_slowpath+0xa3/0xb90
[ 1224.568207][ C2] Code: 0f 1f 44 00 00 49 89 fd 49 89 fc 41 be 01 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 c1 ed 03 41 83 e4 07 49 01 c5 41 83 c4 03 04 00 00 00 48 89 ef e8 d0 79 e9 fd 41 0f b6 45 00 41 38 c4 7c
[ 1224.569165][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 1224.569469][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1224.569861][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1224.570254][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1224.570646][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1224.571042][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1224.571434][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1224.571874][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1224.572202][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1224.572595][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1224.572992][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1224.573385][ C2] PKRU: 55555554
[ 1224.573565][ C2] Call Trace:
[ 1224.573733][ C2]
[ 1224.573881][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1224.574140][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1224.574383][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1224.574656][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1224.574924][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1224.575220][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1224.575482][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1224.575784][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1224.576043][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1224.576348][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1224.576639][ C2]
[ 1224.576788][ C2]
[ 1224.576937][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1224.577249][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1224.577538][ C2] ? queued_spin_lock_slowpath+0xa3/0xb90
[ 1224.577827][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1224.578136][ C2] ? __pfx___schedule+0x10/0x10
[ 1224.578383][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1224.578630][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1224.578900][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1224.579182][ C2] ? lock_acquire+0x1c1/0x220
[ 1224.579420][ C2] ? __mutex_lock+0x33e/0xb10
[ 1224.579657][ C2] ? __mutex_lock+0x811/0xb10
[ 1224.579891][ C2] _raw_spin_lock+0x67/0x80
[ 1224.580121][ C2] __mutex_lock+0x33e/0xb10
[ 1224.580349][ C2] ? __lock_release+0x40f/0x880
[ 1224.580593][ C2] ? __pfx___lock_release+0x10/0x10
[ 1224.580853][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1224.581144][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1224.581396][ C2] ? __pfx___up_read+0x10/0x10
[ 1224.581637][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1224.581900][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1224.582172][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1224.582463][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1224.582755][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1224.583037][ C2] __tcf_action_put+0x3d/0xf0
[ 1224.583277][ C2] tcf_action_destroy+0x43/0x130
[ 1224.583526][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1224.583762][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1224.584077][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1224.584351][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1224.584647][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1224.584939][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1224.585232][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1224.585540][ C2] ? __lock_release+0x40f/0x880
[ 1224.585786][ C2] ? __mutex_lock+0x26e/0xb10
[ 1224.586023][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1224.586304][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1224.586608][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1224.586907][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1224.587154][ C2] tcf_chain_flush+0x1e0/0x320
[ 1224.587396][ C2] __tcf_block_put+0x113/0x270
[ 1224.587639][ C2] tcf_block_put+0xaf/0xf0
[ 1224.587861][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1224.588121][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1224.588391][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1224.588664][ C2] __qdisc_destroy+0xee/0x340
[ 1224.588902][ C2] dev_shutdown+0x164/0x350
[ 1224.589130][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1224.589449][ C2] ? mutex_is_locked+0x17/0x50
[ 1224.589691][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1224.590025][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1224.590340][ C2] default_device_exit_batch+0x234/0x2d0
[ 1224.590623][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1224.590933][ C2] ? ops_exit_list+0xb4/0x170
[ 1224.591169][ C2] cleanup_net+0x4f3/0xb60
[ 1224.591395][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1224.591676][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1224.591924][ C2] ? lock_acquire+0x1c1/0x220
[ 1224.592161][ C2] ? process_one_work+0x714/0x1310
[ 1224.592419][ C2] process_one_work+0x78c/0x1310
[ 1224.592669][ C2] ? hlock_class+0x4e/0x130
[ 1224.592899][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1224.593169][ C2] ? assign_work+0x16c/0x240
[ 1224.593403][ C2] worker_thread+0x73d/0x1010
[ 1224.593639][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1224.593897][ C2] kthread+0x28f/0x360
[ 1224.594105][ C2] ? __pfx_kthread+0x10/0x10
[ 1224.594335][ C2] ret_from_fork+0x31/0x70
[ 1224.594564][ C2] ? __pfx_kthread+0x10/0x10
[ 1224.594796][ C2] ret_from_fork_asm+0x1b/0x30
[ 1224.595048][ C2]
[ 1246.535959][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 1114477 jiffies s: 4309 root: 0x4/.
[ 1246.536590][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 1246.536970][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 1246.537251][ C2] NMI backtrace for cpu 2
[ 1246.537257][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1246.537261][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1246.537264][ C2] Workqueue: netns cleanup_net
[ 1246.537271][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 1246.537278][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 1246.537281][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 1246.537283][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1246.537285][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1246.537287][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1246.537288][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1246.537289][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1246.537291][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1246.537293][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1246.537296][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1246.537298][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1246.537299][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1246.537300][ C2] PKRU: 55555554
[ 1246.537301][ C2] Call Trace:
[ 1246.537305][ C2]
[ 1246.537308][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 1246.537313][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 1246.537317][ C2] ? nmi_handle+0x153/0x420
[ 1246.537322][ C2] ? default_do_nmi+0x41/0x100
[ 1246.537326][ C2] ? exc_nmi+0xf3/0x120
[ 1246.537329][ C2] ? end_repeat_nmi+0xf/0x60
[ 1246.537333][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1246.537336][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1246.537339][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1246.537343][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1246.537346][ C2]
[ 1246.537347][ C2]
[ 1246.537348][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1246.537352][ C2] ? __pfx___schedule+0x10/0x10
[ 1246.537357][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1246.537363][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1246.537365][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1246.537368][ C2] ? lock_acquire+0x1c1/0x220
[ 1246.537371][ C2] ? __mutex_lock+0x33e/0xb10
[ 1246.537375][ C2] ? __mutex_lock+0x811/0xb10
[ 1246.537377][ C2] _raw_spin_lock+0x67/0x80
[ 1246.537380][ C2] __mutex_lock+0x33e/0xb10
[ 1246.537383][ C2] ? __lock_release+0x40f/0x880
[ 1246.537386][ C2] ? __pfx___lock_release+0x10/0x10
[ 1246.537389][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1246.537394][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1246.537397][ C2] ? __pfx___up_read+0x10/0x10
[ 1246.537401][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1246.537404][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1246.537408][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1246.537415][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1246.537418][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1246.537422][ C2] __tcf_action_put+0x3d/0xf0
[ 1246.537426][ C2] tcf_action_destroy+0x43/0x130
[ 1246.537429][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1246.537432][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1246.537443][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1246.537452][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1246.537460][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1246.537469][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1246.537478][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1246.537485][ C2] ? __lock_release+0x40f/0x880
[ 1246.537489][ C2] ? __mutex_lock+0x26e/0xb10
[ 1246.537493][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1246.537502][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1246.537510][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1246.537515][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1246.537519][ C2] tcf_chain_flush+0x1e0/0x320
[ 1246.537523][ C2] __tcf_block_put+0x113/0x270
[ 1246.537527][ C2] tcf_block_put+0xaf/0xf0
[ 1246.537529][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1246.537533][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1246.537540][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1246.537546][ C2] __qdisc_destroy+0xee/0x340
[ 1246.537550][ C2] dev_shutdown+0x164/0x350
[ 1246.537554][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1246.537558][ C2] ? mutex_is_locked+0x17/0x50
[ 1246.537561][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1246.537564][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1246.537568][ C2] default_device_exit_batch+0x234/0x2d0
[ 1246.537571][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1246.537574][ C2] ? ops_exit_list+0xb4/0x170
[ 1246.537577][ C2] cleanup_net+0x4f3/0xb60
[ 1246.537580][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1246.537583][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1246.537586][ C2] ? lock_acquire+0x1c1/0x220
[ 1246.537588][ C2] ? process_one_work+0x714/0x1310
[ 1246.537593][ C2] process_one_work+0x78c/0x1310
[ 1246.537597][ C2] ? hlock_class+0x4e/0x130
[ 1246.537600][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1246.537605][ C2] ? assign_work+0x16c/0x240
[ 1246.537608][ C2] worker_thread+0x73d/0x1010
[ 1246.537613][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1246.537616][ C2] kthread+0x28f/0x360
[ 1246.537619][ C2] ? __pfx_kthread+0x10/0x10
[ 1246.537621][ C2] ret_from_fork+0x31/0x70
[ 1246.537624][ C2] ? __pfx_kthread+0x10/0x10
[ 1246.537626][ C2] ret_from_fork_asm+0x1b/0x30
[ 1246.537634][ C2]
[ 1250.259935][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 1250.260298][ C2] rcu: 2-....: (1116771 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=278681
[ 1250.260837][ C2] rcu: (t=1118507 jiffies g=119533 q=6114 ncpus=4)
[ 1250.261170][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1250.261641][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1250.262252][ C2] Workqueue: netns cleanup_net
[ 1250.262501][ C2] RIP: 0010:kasan_report+0x29/0xf0
[ 1250.262761][ C2] Code: 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca 65 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 <85> c0 0f 85 b7 00 00 00 48 89 fd 49 89 f6 89 d3 49 89 cd e8 0f f7
[ 1250.263728][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 1250.264033][ C2] RAX: 0000000000000000 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 1250.264433][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1250.264827][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 1250.265236][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1250.265632][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: ffff888001c02640
[ 1250.266028][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1250.266470][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1250.266801][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1250.267199][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1250.267594][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1250.267992][ C2] PKRU: 55555554
[ 1250.268171][ C2] Call Trace:
[ 1250.268339][ C2]
[ 1250.268488][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 1250.268761][ C2] ? print_cpu_stall+0x263/0x6a0
[ 1250.269012][ C2] ? check_cpu_stall+0x284/0x500
[ 1250.269262][ C2] ? rcu_pending+0x92/0x360
[ 1250.269490][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 1250.269756][ C2] ? update_process_times+0xb9/0x110
[ 1250.270026][ C2] ? tick_sched_handle+0x67/0x130
[ 1250.270282][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 1250.270565][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1250.270809][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 1250.271121][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1250.271392][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1250.271680][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1250.271947][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1250.272251][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1250.272511][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1250.272819][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1250.273115][ C2]
[ 1250.273263][ C2]
[ 1250.273415][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1250.273731][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1250.274021][ C2] ? kasan_report+0x29/0xf0
[ 1250.274257][ C2] kasan_check_range+0x39/0x1c0
[ 1250.274505][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 1250.274787][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1250.275108][ C2] ? __pfx___schedule+0x10/0x10
[ 1250.275358][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1250.275607][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1250.275879][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1250.276162][ C2] ? lock_acquire+0x1c1/0x220
[ 1250.276401][ C2] ? __mutex_lock+0x33e/0xb10
[ 1250.276642][ C2] ? __mutex_lock+0x811/0xb10
[ 1250.276878][ C2] _raw_spin_lock+0x67/0x80
[ 1250.277111][ C2] __mutex_lock+0x33e/0xb10
[ 1250.277343][ C2] ? __lock_release+0x40f/0x880
[ 1250.277589][ C2] ? __pfx___lock_release+0x10/0x10
[ 1250.277853][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1250.278149][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1250.278404][ C2] ? __pfx___up_read+0x10/0x10
[ 1250.278649][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1250.278917][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1250.279186][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1250.279479][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1250.279774][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1250.280057][ C2] __tcf_action_put+0x3d/0xf0
[ 1250.280299][ C2] tcf_action_destroy+0x43/0x130
[ 1250.280552][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1250.280789][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1250.281106][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1250.281383][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1250.281684][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1250.281980][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1250.282267][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1250.282580][ C2] ? __lock_release+0x40f/0x880
[ 1250.282829][ C2] ? __mutex_lock+0x26e/0xb10
[ 1250.283068][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1250.283350][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1250.283655][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1250.283959][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1250.284206][ C2] tcf_chain_flush+0x1e0/0x320
[ 1250.284449][ C2] __tcf_block_put+0x113/0x270
[ 1250.284693][ C2] tcf_block_put+0xaf/0xf0
[ 1250.284930][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1250.285188][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1250.285461][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1250.285734][ C2] __qdisc_destroy+0xee/0x340
[ 1250.285972][ C2] dev_shutdown+0x164/0x350
[ 1250.286200][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1250.286519][ C2] ? mutex_is_locked+0x17/0x50
[ 1250.286759][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1250.287096][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1250.287412][ C2] default_device_exit_batch+0x234/0x2d0
[ 1250.287695][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1250.288004][ C2] ? ops_exit_list+0xb4/0x170
[ 1250.288239][ C2] cleanup_net+0x4f3/0xb60
[ 1250.288466][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1250.288746][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1250.288995][ C2] ? lock_acquire+0x1c1/0x220
[ 1250.289231][ C2] ? process_one_work+0x714/0x1310
[ 1250.289490][ C2] process_one_work+0x78c/0x1310
[ 1250.289740][ C2] ? hlock_class+0x4e/0x130
[ 1250.289971][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1250.290242][ C2] ? assign_work+0x16c/0x240
[ 1250.290474][ C2] worker_thread+0x73d/0x1010
[ 1250.290711][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1250.290967][ C2] kthread+0x28f/0x360
[ 1250.291176][ C2] ? __pfx_kthread+0x10/0x10
[ 1250.291407][ C2] ret_from_fork+0x31/0x70
[ 1250.291633][ C2] ? __pfx_kthread+0x10/0x10
[ 1250.291866][ C2] ret_from_fork_asm+0x1b/0x30
[ 1250.292109][ C2]
[ 1276.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1069s! [kworker/u8:0:11]
[ 1276.564081][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1276.564494][ C2] irq event stamp: 753065
[ 1276.564712][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1276.565187][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1276.565654][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1276.566122][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1276.566580][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1276.567049][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1276.567658][ C2] Workqueue: netns cleanup_net
[ 1276.567903][ C2] RIP: 0010:__asan_report_load4_noabort+0x0/0x20
[ 1276.568223][ C2] Code: 0c 24 31 d2 be 02 00 00 00 e9 4c e0 ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 8b 0c 24 31 d2 be 04 00 00 00 e9 1c e0 ff ff 66 66
[ 1276.569193][ C2] RSP: 0018:ffffc900000bf2a8 EFLAGS: 00000282
[ 1276.569498][ C2] RAX: 00000000000000fb RBX: 000000000000000b RCX: ffffffffaeeb35b0
[ 1276.569897][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1276.570293][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1276.570689][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1276.571087][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1276.571483][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1276.571927][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1276.572256][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1276.572654][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1276.573053][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1276.573449][ C2] PKRU: 55555554
[ 1276.573630][ C2] Call Trace:
[ 1276.573799][ C2]
[ 1276.573948][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1276.574210][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1276.574452][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1276.574728][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1276.575010][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1276.575300][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1276.575563][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1276.575867][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1276.576132][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1276.576439][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1276.576732][ C2]
[ 1276.576882][ C2]
[ 1276.577032][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1276.577344][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1276.577631][ C2] ? __pfx___asan_report_load4_noabort+0x10/0x10
[ 1276.577951][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 1276.578236][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1276.578547][ C2] ? __pfx___schedule+0x10/0x10
[ 1276.578795][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1276.579044][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1276.579317][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1276.579601][ C2] ? lock_acquire+0x1c1/0x220
[ 1276.579840][ C2] ? __mutex_lock+0x33e/0xb10
[ 1276.580080][ C2] ? __mutex_lock+0x811/0xb10
[ 1276.580317][ C2] _raw_spin_lock+0x67/0x80
[ 1276.580548][ C2] __mutex_lock+0x33e/0xb10
[ 1276.580778][ C2] ? __lock_release+0x40f/0x880
[ 1276.581023][ C2] ? __pfx___lock_release+0x10/0x10
[ 1276.581286][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1276.581582][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1276.581837][ C2] ? __pfx___up_read+0x10/0x10
[ 1276.582087][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1276.582353][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1276.582621][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1276.582912][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1276.583206][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1276.583490][ C2] __tcf_action_put+0x3d/0xf0
[ 1276.583732][ C2] tcf_action_destroy+0x43/0x130
[ 1276.583983][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1276.584219][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1276.584536][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1276.584815][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1276.585118][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1276.585411][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1276.585697][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1276.586008][ C2] ? __lock_release+0x40f/0x880
[ 1276.586255][ C2] ? __mutex_lock+0x26e/0xb10
[ 1276.586492][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1276.586775][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1276.587082][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1276.587388][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1276.587635][ C2] tcf_chain_flush+0x1e0/0x320
[ 1276.587878][ C2] __tcf_block_put+0x113/0x270
[ 1276.588121][ C2] tcf_block_put+0xaf/0xf0
[ 1276.588346][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1276.588606][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1276.588879][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1276.589155][ C2] __qdisc_destroy+0xee/0x340
[ 1276.589396][ C2] dev_shutdown+0x164/0x350
[ 1276.589629][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1276.589952][ C2] ? mutex_is_locked+0x17/0x50
[ 1276.590197][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1276.590538][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1276.590856][ C2] default_device_exit_batch+0x234/0x2d0
[ 1276.591143][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1276.591455][ C2] ? ops_exit_list+0xb4/0x170
[ 1276.591694][ C2] cleanup_net+0x4f3/0xb60
[ 1276.591924][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1276.592209][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1276.592462][ C2] ? lock_acquire+0x1c1/0x220
[ 1276.592702][ C2] ? process_one_work+0x714/0x1310
[ 1276.592965][ C2] process_one_work+0x78c/0x1310
[ 1276.593219][ C2] ? hlock_class+0x4e/0x130
[ 1276.593450][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1276.593724][ C2] ? assign_work+0x16c/0x240
[ 1276.593960][ C2] worker_thread+0x73d/0x1010
[ 1276.594202][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1276.594462][ C2] kthread+0x28f/0x360
[ 1276.594672][ C2] ? __pfx_kthread+0x10/0x10
[ 1276.594912][ C2] ret_from_fork+0x31/0x70
[ 1276.595140][ C2] ? __pfx_kthread+0x10/0x10
[ 1276.595372][ C2] ret_from_fork_asm+0x1b/0x30
[ 1276.595620][ C2]
[ 1304.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1095s! [kworker/u8:0:11]
[ 1304.564101][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1304.564516][ C2] irq event stamp: 753065
[ 1304.564739][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1304.565207][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1304.565674][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1304.566139][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1304.566597][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1304.567072][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1304.567678][ C2] Workqueue: netns cleanup_net
[ 1304.567923][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 1304.568244][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 1304.569203][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 1304.569508][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1304.569901][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1304.570297][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1304.570691][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1304.571090][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1304.571484][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1304.571927][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1304.572256][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1304.572654][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1304.573049][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1304.573442][ C2] PKRU: 55555554
[ 1304.573623][ C2] Call Trace:
[ 1304.573793][ C2]
[ 1304.573940][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1304.574201][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1304.574443][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1304.574724][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1304.574997][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1304.575282][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1304.575544][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1304.575847][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1304.576108][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1304.576414][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1304.576706][ C2]
[ 1304.576856][ C2]
[ 1304.577005][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1304.577317][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1304.577612][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1304.577908][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1304.578222][ C2] ? __pfx___schedule+0x10/0x10
[ 1304.578471][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1304.578722][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1304.578995][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1304.579280][ C2] ? lock_acquire+0x1c1/0x220
[ 1304.579516][ C2] ? __mutex_lock+0x33e/0xb10
[ 1304.579756][ C2] ? __mutex_lock+0x811/0xb10
[ 1304.579997][ C2] _raw_spin_lock+0x67/0x80
[ 1304.580228][ C2] __mutex_lock+0x33e/0xb10
[ 1304.580457][ C2] ? __lock_release+0x40f/0x880
[ 1304.580705][ C2] ? __pfx___lock_release+0x10/0x10
[ 1304.580969][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1304.581266][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1304.581520][ C2] ? __pfx___up_read+0x10/0x10
[ 1304.581763][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1304.582029][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1304.582299][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1304.582589][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1304.582881][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1304.583166][ C2] __tcf_action_put+0x3d/0xf0
[ 1304.583404][ C2] tcf_action_destroy+0x43/0x130
[ 1304.583653][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1304.583892][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1304.584209][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1304.584481][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1304.584784][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1304.585076][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1304.585362][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1304.585672][ C2] ? __lock_release+0x40f/0x880
[ 1304.585918][ C2] ? __mutex_lock+0x26e/0xb10
[ 1304.586159][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1304.586439][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1304.586747][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1304.587054][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1304.587302][ C2] tcf_chain_flush+0x1e0/0x320
[ 1304.587545][ C2] __tcf_block_put+0x113/0x270
[ 1304.587789][ C2] tcf_block_put+0xaf/0xf0
[ 1304.588018][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1304.588278][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1304.588548][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1304.588822][ C2] __qdisc_destroy+0xee/0x340
[ 1304.589062][ C2] dev_shutdown+0x164/0x350
[ 1304.589294][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1304.589616][ C2] ? mutex_is_locked+0x17/0x50
[ 1304.589858][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1304.590195][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1304.590510][ C2] default_device_exit_batch+0x234/0x2d0
[ 1304.590790][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1304.591101][ C2] ? ops_exit_list+0xb4/0x170
[ 1304.591339][ C2] cleanup_net+0x4f3/0xb60
[ 1304.591561][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1304.591844][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1304.592094][ C2] ? lock_acquire+0x1c1/0x220
[ 1304.592331][ C2] ? process_one_work+0x714/0x1310
[ 1304.592590][ C2] process_one_work+0x78c/0x1310
[ 1304.592839][ C2] ? hlock_class+0x4e/0x130
[ 1304.593067][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1304.593337][ C2] ? assign_work+0x16c/0x240
[ 1304.593571][ C2] worker_thread+0x73d/0x1010
[ 1304.593811][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1304.594068][ C2] kthread+0x28f/0x360
[ 1304.594274][ C2] ? __pfx_kthread+0x10/0x10
[ 1304.594508][ C2] ret_from_fork+0x31/0x70
[ 1304.594739][ C2] ? __pfx_kthread+0x10/0x10
[ 1304.594972][ C2] ret_from_fork_asm+0x1b/0x30
[ 1304.595221][ C2]
[ 1317.005767][ T74] kmemleak: 1229 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
[ 1328.292937][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 1328.293321][ C2] rcu: 2-....: (1194711 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=298110
[ 1328.293865][ C2] rcu: (t=1196540 jiffies g=119533 q=6114 ncpus=4)
[ 1328.294209][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1328.294685][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1328.295357][ C2] Workqueue: netns cleanup_net
[ 1328.295676][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 1328.296140][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 1328.297549][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 1328.298007][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1328.298597][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1328.299188][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1328.299780][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1328.300371][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1328.300964][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1328.301627][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1328.302120][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1328.302715][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1328.303301][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1328.303895][ C2] PKRU: 55555554
[ 1328.304165][ C2] Call Trace:
[ 1328.304419][ C2]
[ 1328.304647][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 1328.305051][ C2] ? print_cpu_stall+0x263/0x6a0
[ 1328.305428][ C2] ? check_cpu_stall+0x284/0x500
[ 1328.305802][ C2] ? rcu_pending+0x92/0x360
[ 1328.306144][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 1328.306544][ C2] ? update_process_times+0xb9/0x110
[ 1328.306941][ C2] ? tick_sched_handle+0x67/0x130
[ 1328.307311][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 1328.307718][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1328.308047][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 1328.308489][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1328.308890][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1328.309185][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1328.309449][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1328.309770][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1328.310149][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1328.310575][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1328.310868][ C2]
[ 1328.311033][ C2]
[ 1328.311232][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1328.311681][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1328.312120][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1328.312556][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1328.313016][ C2] ? __pfx___schedule+0x10/0x10
[ 1328.313385][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1328.313754][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1328.314155][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1328.314580][ C2] ? lock_acquire+0x1c1/0x220
[ 1328.314815][ C2] ? __mutex_lock+0x33e/0xb10
[ 1328.315055][ C2] ? __mutex_lock+0x811/0xb10
[ 1328.315291][ C2] _raw_spin_lock+0x67/0x80
[ 1328.315518][ C2] __mutex_lock+0x33e/0xb10
[ 1328.315748][ C2] ? __lock_release+0x40f/0x880
[ 1328.315994][ C2] ? __pfx___lock_release+0x10/0x10
[ 1328.316254][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1328.316549][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1328.316802][ C2] ? __pfx___up_read+0x10/0x10
[ 1328.317044][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1328.317310][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1328.317575][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1328.317862][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1328.318157][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1328.318438][ C2] __tcf_action_put+0x3d/0xf0
[ 1328.318676][ C2] tcf_action_destroy+0x43/0x130
[ 1328.318926][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1328.319165][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1328.319482][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1328.319753][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1328.320050][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1328.320342][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1328.320626][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1328.320934][ C2] ? __lock_release+0x40f/0x880
[ 1328.321181][ C2] ? __mutex_lock+0x26e/0xb10
[ 1328.321419][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1328.321697][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1328.322003][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1328.322305][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1328.322550][ C2] tcf_chain_flush+0x1e0/0x320
[ 1328.322790][ C2] __tcf_block_put+0x113/0x270
[ 1328.323033][ C2] tcf_block_put+0xaf/0xf0
[ 1328.323258][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1328.323519][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1328.323788][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1328.324061][ C2] __qdisc_destroy+0xee/0x340
[ 1328.324301][ C2] dev_shutdown+0x164/0x350
[ 1328.324544][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1328.324863][ C2] ? mutex_is_locked+0x17/0x50
[ 1328.325102][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1328.325440][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1328.325753][ C2] default_device_exit_batch+0x234/0x2d0
[ 1328.326035][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1328.326344][ C2] ? ops_exit_list+0xb4/0x170
[ 1328.326582][ C2] cleanup_net+0x4f3/0xb60
[ 1328.326805][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1328.327089][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1328.327338][ C2] ? lock_acquire+0x1c1/0x220
[ 1328.327572][ C2] ? process_one_work+0x714/0x1310
[ 1328.327833][ C2] process_one_work+0x78c/0x1310
[ 1328.328084][ C2] ? hlock_class+0x4e/0x130
[ 1328.328314][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1328.328583][ C2] ? assign_work+0x16c/0x240
[ 1328.328817][ C2] worker_thread+0x73d/0x1010
[ 1328.329058][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1328.329315][ C2] kthread+0x28f/0x360
[ 1328.329521][ C2] ? __pfx_kthread+0x10/0x10
[ 1328.329754][ C2] ret_from_fork+0x31/0x70
[ 1328.329977][ C2] ? __pfx_kthread+0x10/0x10
[ 1328.330213][ C2] ret_from_fork_asm+0x1b/0x30
[ 1328.330460][ C2]
[ 1344.839960][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 1212781 jiffies s: 4309 root: 0x4/.
[ 1344.840631][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 1344.841016][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 1344.841302][ C2] NMI backtrace for cpu 2
[ 1344.841310][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1344.841314][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1344.841317][ C2] Workqueue: netns cleanup_net
[ 1344.841325][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 1344.841332][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 1344.841335][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 1344.841338][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1344.841340][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1344.841341][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1344.841343][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1344.841344][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1344.841346][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1344.841348][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1344.841352][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1344.841354][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1344.841355][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1344.841356][ C2] PKRU: 55555554
[ 1344.841357][ C2] Call Trace:
[ 1344.841361][ C2]
[ 1344.841364][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 1344.841370][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 1344.841374][ C2] ? nmi_handle+0x153/0x420
[ 1344.841379][ C2] ? default_do_nmi+0x41/0x100
[ 1344.841383][ C2] ? exc_nmi+0xf3/0x120
[ 1344.841385][ C2] ? end_repeat_nmi+0xf/0x60
[ 1344.841390][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1344.841393][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1344.841396][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1344.841400][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1344.841403][ C2]
[ 1344.841404][ C2]
[ 1344.841405][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1344.841409][ C2] ? __pfx___schedule+0x10/0x10
[ 1344.841414][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1344.841419][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1344.841422][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1344.841425][ C2] ? lock_acquire+0x1c1/0x220
[ 1344.841428][ C2] ? __mutex_lock+0x33e/0xb10
[ 1344.841432][ C2] ? __mutex_lock+0x811/0xb10
[ 1344.841435][ C2] _raw_spin_lock+0x67/0x80
[ 1344.841438][ C2] __mutex_lock+0x33e/0xb10
[ 1344.841441][ C2] ? __lock_release+0x40f/0x880
[ 1344.841443][ C2] ? __pfx___lock_release+0x10/0x10
[ 1344.841446][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1344.841451][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1344.841454][ C2] ? __pfx___up_read+0x10/0x10
[ 1344.841458][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1344.841461][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1344.841465][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1344.841471][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1344.841475][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1344.841479][ C2] __tcf_action_put+0x3d/0xf0
[ 1344.841483][ C2] tcf_action_destroy+0x43/0x130
[ 1344.841487][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1344.841490][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1344.841501][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1344.841509][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1344.841517][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1344.841526][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1344.841535][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1344.841543][ C2] ? __lock_release+0x40f/0x880
[ 1344.841546][ C2] ? __mutex_lock+0x26e/0xb10
[ 1344.841550][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1344.841559][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1344.841567][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1344.841572][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1344.841576][ C2] tcf_chain_flush+0x1e0/0x320
[ 1344.841580][ C2] __tcf_block_put+0x113/0x270
[ 1344.841584][ C2] tcf_block_put+0xaf/0xf0
[ 1344.841587][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1344.841590][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1344.841598][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1344.841604][ C2] __qdisc_destroy+0xee/0x340
[ 1344.841607][ C2] dev_shutdown+0x164/0x350
[ 1344.841611][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1344.841616][ C2] ? mutex_is_locked+0x17/0x50
[ 1344.841619][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1344.841621][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1344.841626][ C2] default_device_exit_batch+0x234/0x2d0
[ 1344.841629][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1344.841632][ C2] ? ops_exit_list+0xb4/0x170
[ 1344.841635][ C2] cleanup_net+0x4f3/0xb60
[ 1344.841638][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1344.841641][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1344.841644][ C2] ? lock_acquire+0x1c1/0x220
[ 1344.841646][ C2] ? process_one_work+0x714/0x1310
[ 1344.841650][ C2] process_one_work+0x78c/0x1310
[ 1344.841655][ C2] ? hlock_class+0x4e/0x130
[ 1344.841658][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1344.841662][ C2] ? assign_work+0x16c/0x240
[ 1344.841666][ C2] worker_thread+0x73d/0x1010
[ 1344.841671][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1344.841673][ C2] kthread+0x28f/0x360
[ 1344.841677][ C2] ? __pfx_kthread+0x10/0x10
[ 1344.841679][ C2] ret_from_fork+0x31/0x70
[ 1344.841682][ C2] ? __pfx_kthread+0x10/0x10
[ 1344.841684][ C2] ret_from_fork_asm+0x1b/0x30
[ 1344.841692][ C2]
[ 1372.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1159s! [kworker/u8:0:11]
[ 1372.564086][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1372.564508][ C2] irq event stamp: 753065
[ 1372.564724][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1372.565192][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1372.565658][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1372.566121][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1372.566580][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1372.567049][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1372.567654][ C2] Workqueue: netns cleanup_net
[ 1372.567899][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 1372.568224][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 1372.569187][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 1372.569493][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1372.569888][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1372.570286][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1372.570681][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1372.571077][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1372.571472][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1372.571915][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1372.572247][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1372.572648][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1372.573044][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1372.573441][ C2] PKRU: 55555554
[ 1372.573620][ C2] Call Trace:
[ 1372.573791][ C2]
[ 1372.573938][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1372.574201][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1372.574450][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1372.574728][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1372.574999][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1372.575282][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1372.575549][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1372.575850][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1372.576111][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1372.576418][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1372.576712][ C2]
[ 1372.576860][ C2]
[ 1372.577010][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1372.577324][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1372.577619][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1372.577913][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1372.578225][ C2] ? __pfx___schedule+0x10/0x10
[ 1372.578471][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1372.578719][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1372.578991][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1372.579274][ C2] ? lock_acquire+0x1c1/0x220
[ 1372.579511][ C2] ? __mutex_lock+0x33e/0xb10
[ 1372.579748][ C2] ? __mutex_lock+0x811/0xb10
[ 1372.579986][ C2] _raw_spin_lock+0x67/0x80
[ 1372.580217][ C2] __mutex_lock+0x33e/0xb10
[ 1372.580445][ C2] ? __lock_release+0x40f/0x880
[ 1372.580690][ C2] ? __pfx___lock_release+0x10/0x10
[ 1372.580954][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1372.581250][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1372.581504][ C2] ? __pfx___up_read+0x10/0x10
[ 1372.581747][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1372.582013][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1372.582282][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1372.582572][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1372.582863][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1372.583149][ C2] __tcf_action_put+0x3d/0xf0
[ 1372.583388][ C2] tcf_action_destroy+0x43/0x130
[ 1372.583638][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1372.583874][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1372.584194][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1372.584475][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1372.584774][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1372.585067][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1372.585352][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1372.585662][ C2] ? __lock_release+0x40f/0x880
[ 1372.585907][ C2] ? __mutex_lock+0x26e/0xb10
[ 1372.586145][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1372.586427][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1372.586731][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1372.587035][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1372.587282][ C2] tcf_chain_flush+0x1e0/0x320
[ 1372.587524][ C2] __tcf_block_put+0x113/0x270
[ 1372.587767][ C2] tcf_block_put+0xaf/0xf0
[ 1372.587991][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1372.588249][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1372.588519][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1372.588796][ C2] __qdisc_destroy+0xee/0x340
[ 1372.589032][ C2] dev_shutdown+0x164/0x350
[ 1372.589266][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1372.589587][ C2] ? mutex_is_locked+0x17/0x50
[ 1372.589829][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1372.590166][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1372.590482][ C2] default_device_exit_batch+0x234/0x2d0
[ 1372.590765][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1372.591073][ C2] ? ops_exit_list+0xb4/0x170
[ 1372.591312][ C2] cleanup_net+0x4f3/0xb60
[ 1372.591538][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1372.591819][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1372.592071][ C2] ? lock_acquire+0x1c1/0x220
[ 1372.592310][ C2] ? process_one_work+0x714/0x1310
[ 1372.592570][ C2] process_one_work+0x78c/0x1310
[ 1372.592822][ C2] ? hlock_class+0x4e/0x130
[ 1372.593054][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1372.593329][ C2] ? assign_work+0x16c/0x240
[ 1372.593564][ C2] worker_thread+0x73d/0x1010
[ 1372.593808][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1372.594070][ C2] kthread+0x28f/0x360
[ 1372.594280][ C2] ? __pfx_kthread+0x10/0x10
[ 1372.594524][ C2] ret_from_fork+0x31/0x70
[ 1372.594754][ C2] ? __pfx_kthread+0x10/0x10
[ 1372.594989][ C2] ret_from_fork_asm+0x1b/0x30
[ 1372.595235][ C2]
[ 1400.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1185s! [kworker/u8:0:11]
[ 1400.564088][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1400.564507][ C2] irq event stamp: 753065
[ 1400.564725][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1400.565191][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1400.565655][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1400.566121][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1400.566578][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1400.567046][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1400.567653][ C2] Workqueue: netns cleanup_net
[ 1400.567896][ C2] RIP: 0010:queued_spin_lock_slowpath+0xb0/0xb90
[ 1400.568215][ C2] Code: 01 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 c1 ed 03 41 83 e4 07 49 01 c5 41 83 c4 03 be 04 00 00 00 48 89 ef e8 d0 79 e9 fd <41> 0f b6 45 00 41 38 c4 7c 08 84 c0 0f 85 42 09 00 00 8b 5d 00 85
[ 1400.569175][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 1400.569478][ C2] RAX: 0000000000000001 RBX: 000000000000000b RCX: ffffffffaeeb35b0
[ 1400.569873][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1400.570267][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1400.570660][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1400.571056][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1400.571450][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1400.571892][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1400.572221][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1400.572615][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1400.573012][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1400.573406][ C2] PKRU: 55555554
[ 1400.573585][ C2] Call Trace:
[ 1400.573753][ C2]
[ 1400.573902][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1400.574172][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1400.574413][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1400.574688][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1400.574957][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1400.575243][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1400.575506][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1400.575808][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1400.576070][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1400.576374][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1400.576668][ C2]
[ 1400.576815][ C2]
[ 1400.576966][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1400.577278][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1400.577563][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1400.577851][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1400.578160][ C2] ? __pfx___schedule+0x10/0x10
[ 1400.578406][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1400.578655][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1400.578924][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1400.579207][ C2] ? lock_acquire+0x1c1/0x220
[ 1400.579444][ C2] ? __mutex_lock+0x33e/0xb10
[ 1400.579681][ C2] ? __mutex_lock+0x811/0xb10
[ 1400.579919][ C2] _raw_spin_lock+0x67/0x80
[ 1400.580150][ C2] __mutex_lock+0x33e/0xb10
[ 1400.580380][ C2] ? __lock_release+0x40f/0x880
[ 1400.580629][ C2] ? __pfx___lock_release+0x10/0x10
[ 1400.580894][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1400.581193][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1400.581449][ C2] ? __pfx___up_read+0x10/0x10
[ 1400.581694][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1400.581959][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1400.582226][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1400.582515][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1400.582809][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1400.583101][ C2] __tcf_action_put+0x3d/0xf0
[ 1400.583343][ C2] tcf_action_destroy+0x43/0x130
[ 1400.583598][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1400.583837][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1400.584167][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1400.584443][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1400.584747][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1400.585043][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1400.585332][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1400.585647][ C2] ? __lock_release+0x40f/0x880
[ 1400.585895][ C2] ? __mutex_lock+0x26e/0xb10
[ 1400.586136][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1400.586422][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1400.586730][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1400.587038][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1400.587289][ C2] tcf_chain_flush+0x1e0/0x320
[ 1400.587535][ C2] __tcf_block_put+0x113/0x270
[ 1400.587786][ C2] tcf_block_put+0xaf/0xf0
[ 1400.588014][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1400.588276][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1400.588546][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1400.588823][ C2] __qdisc_destroy+0xee/0x340
[ 1400.589060][ C2] dev_shutdown+0x164/0x350
[ 1400.589292][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1400.589613][ C2] ? mutex_is_locked+0x17/0x50
[ 1400.589855][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1400.590195][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1400.590512][ C2] default_device_exit_batch+0x234/0x2d0
[ 1400.590795][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1400.591103][ C2] ? ops_exit_list+0xb4/0x170
[ 1400.591344][ C2] cleanup_net+0x4f3/0xb60
[ 1400.591569][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1400.591851][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1400.592102][ C2] ? lock_acquire+0x1c1/0x220
[ 1400.592344][ C2] ? process_one_work+0x714/0x1310
[ 1400.592608][ C2] process_one_work+0x78c/0x1310
[ 1400.592862][ C2] ? hlock_class+0x4e/0x130
[ 1400.593096][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1400.593373][ C2] ? assign_work+0x16c/0x240
[ 1400.593608][ C2] worker_thread+0x73d/0x1010
[ 1400.593852][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1400.594113][ C2] kthread+0x28f/0x360
[ 1400.594328][ C2] ? __pfx_kthread+0x10/0x10
[ 1400.594565][ C2] ret_from_fork+0x31/0x70
[ 1400.594795][ C2] ? __pfx_kthread+0x10/0x10
[ 1400.595029][ C2] ret_from_fork_asm+0x1b/0x30
[ 1400.595281][ C2]
[ 1406.330936][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 1406.331296][ C2] rcu: 2-....: (1272625 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=317482
[ 1406.331838][ C2] rcu: (t=1274578 jiffies g=119533 q=6114 ncpus=4)
[ 1406.332174][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1406.332641][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1406.333249][ C2] Workqueue: netns cleanup_net
[ 1406.333493][ C2] RIP: 0010:kasan_report+0xd2/0xf0
[ 1406.333753][ C2] Code: 24 28 4c 89 6c 24 30 e8 7c f5 ff ff 48 8d 7c 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd ff ff ff 34 24 9d <48> 83 c4 70 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc
[ 1406.334723][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 1406.335027][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb35b0
[ 1406.335423][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1406.335817][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1406.336214][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000000
[ 1406.336611][ C2] R13: ffffffffaeeb35b0 R14: 0000000000000004 R15: ffff888001c02640
[ 1406.337008][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1406.337450][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1406.337778][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1406.338176][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1406.338572][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1406.338968][ C2] PKRU: 55555554
[ 1406.339148][ C2] Call Trace:
[ 1406.339315][ C2]
[ 1406.339463][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 1406.339734][ C2] ? print_cpu_stall+0x263/0x6a0
[ 1406.339985][ C2] ? check_cpu_stall+0x284/0x500
[ 1406.340235][ C2] ? rcu_pending+0x92/0x360
[ 1406.340462][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 1406.340731][ C2] ? update_process_times+0xb9/0x110
[ 1406.340999][ C2] ? tick_sched_handle+0x67/0x130
[ 1406.341254][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 1406.341535][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1406.341776][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 1406.342087][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1406.342356][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1406.342642][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1406.342905][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1406.343207][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1406.343468][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1406.343772][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1406.344068][ C2]
[ 1406.344221][ C2]
[ 1406.344374][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1406.344686][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1406.344975][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1406.345265][ C2] ? kasan_report+0xd2/0xf0
[ 1406.345496][ C2] kasan_check_range+0x39/0x1c0
[ 1406.345745][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 1406.346026][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1406.346342][ C2] ? __pfx___schedule+0x10/0x10
[ 1406.346594][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1406.346846][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1406.347120][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1406.347409][ C2] ? lock_acquire+0x1c1/0x220
[ 1406.347650][ C2] ? __mutex_lock+0x33e/0xb10
[ 1406.347891][ C2] ? __mutex_lock+0x811/0xb10
[ 1406.348133][ C2] _raw_spin_lock+0x67/0x80
[ 1406.348368][ C2] __mutex_lock+0x33e/0xb10
[ 1406.348599][ C2] ? __lock_release+0x40f/0x880
[ 1406.348849][ C2] ? __pfx___lock_release+0x10/0x10
[ 1406.349115][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1406.349417][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1406.349678][ C2] ? __pfx___up_read+0x10/0x10
[ 1406.349925][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1406.350196][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1406.350466][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1406.350759][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1406.351056][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1406.351345][ C2] __tcf_action_put+0x3d/0xf0
[ 1406.351585][ C2] tcf_action_destroy+0x43/0x130
[ 1406.351838][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1406.352082][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1406.352404][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1406.352679][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1406.352985][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1406.353281][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1406.353571][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1406.353883][ C2] ? __lock_release+0x40f/0x880
[ 1406.354139][ C2] ? __mutex_lock+0x26e/0xb10
[ 1406.354381][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1406.354665][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1406.354978][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1406.355285][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1406.355533][ C2] tcf_chain_flush+0x1e0/0x320
[ 1406.355776][ C2] __tcf_block_put+0x113/0x270
[ 1406.356019][ C2] tcf_block_put+0xaf/0xf0
[ 1406.356245][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1406.356503][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1406.356772][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1406.357045][ C2] __qdisc_destroy+0xee/0x340
[ 1406.357283][ C2] dev_shutdown+0x164/0x350
[ 1406.357514][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1406.357832][ C2] ? mutex_is_locked+0x17/0x50
[ 1406.358074][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1406.358410][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1406.358724][ C2] default_device_exit_batch+0x234/0x2d0
[ 1406.359005][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1406.359314][ C2] ? ops_exit_list+0xb4/0x170
[ 1406.359551][ C2] cleanup_net+0x4f3/0xb60
[ 1406.359776][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1406.360058][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1406.360309][ C2] ? lock_acquire+0x1c1/0x220
[ 1406.360545][ C2] ? process_one_work+0x714/0x1310
[ 1406.360804][ C2] process_one_work+0x78c/0x1310
[ 1406.361055][ C2] ? hlock_class+0x4e/0x130
[ 1406.361282][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1406.361553][ C2] ? assign_work+0x16c/0x240
[ 1406.361786][ C2] worker_thread+0x73d/0x1010
[ 1406.362025][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1406.362282][ C2] kthread+0x28f/0x360
[ 1406.362486][ C2] ? __pfx_kthread+0x10/0x10
[ 1406.362720][ C2] ret_from_fork+0x31/0x70
[ 1406.362945][ C2] ? __pfx_kthread+0x10/0x10
[ 1406.363176][ C2] ret_from_fork_asm+0x1b/0x30
[ 1406.363421][ C2]
[ 1432.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1215s! [kworker/u8:0:11]
[ 1432.564095][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1432.564507][ C2] irq event stamp: 753065
[ 1432.564720][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1432.565184][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1432.565650][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1432.566112][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1432.566567][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1432.567035][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1432.567638][ C2] Workqueue: netns cleanup_net
[ 1432.567880][ C2] RIP: 0010:__kasan_check_read+0x8/0x20
[ 1432.568164][ C2] Code: 5d 41 5c e9 9a b3 9b ff 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 0c 24 <89> f6 31 d2 e9 af ef ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f
[ 1432.569118][ C2] RSP: 0018:ffffc900000bf2a8 EFLAGS: 00000202
[ 1432.569423][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb35b0
[ 1432.569817][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1432.570212][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1432.570605][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1432.570999][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1432.571393][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1432.571835][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1432.572165][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1432.572561][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1432.572954][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1432.573350][ C2] PKRU: 55555554
[ 1432.573529][ C2] Call Trace:
[ 1432.573699][ C2]
[ 1432.573844][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1432.574119][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1432.574358][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1432.574632][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1432.574901][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1432.575183][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1432.575445][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1432.575746][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1432.576005][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1432.576310][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1432.576602][ C2]
[ 1432.576749][ C2]
[ 1432.576897][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1432.577208][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1432.577495][ C2] ? __kasan_check_read+0x8/0x20
[ 1432.577743][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 1432.578019][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1432.578327][ C2] ? __pfx___schedule+0x10/0x10
[ 1432.578573][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1432.578820][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1432.579088][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1432.579368][ C2] ? lock_acquire+0x1c1/0x220
[ 1432.579602][ C2] ? __mutex_lock+0x33e/0xb10
[ 1432.579840][ C2] ? __mutex_lock+0x811/0xb10
[ 1432.580077][ C2] _raw_spin_lock+0x67/0x80
[ 1432.580303][ C2] __mutex_lock+0x33e/0xb10
[ 1432.580531][ C2] ? __lock_release+0x40f/0x880
[ 1432.580776][ C2] ? __pfx___lock_release+0x10/0x10
[ 1432.581035][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1432.581329][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1432.581581][ C2] ? __pfx___up_read+0x10/0x10
[ 1432.581819][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1432.582091][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1432.582356][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1432.582642][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1432.582934][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1432.583216][ C2] __tcf_action_put+0x3d/0xf0
[ 1432.583453][ C2] tcf_action_destroy+0x43/0x130
[ 1432.583702][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1432.583938][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1432.584265][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1432.584534][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1432.584829][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1432.585121][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1432.585402][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1432.585710][ C2] ? __lock_release+0x40f/0x880
[ 1432.585955][ C2] ? __mutex_lock+0x26e/0xb10
[ 1432.586192][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1432.586471][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1432.586775][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1432.587077][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1432.587321][ C2] tcf_chain_flush+0x1e0/0x320
[ 1432.587561][ C2] __tcf_block_put+0x113/0x270
[ 1432.587802][ C2] tcf_block_put+0xaf/0xf0
[ 1432.588026][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1432.588284][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1432.588552][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1432.588823][ C2] __qdisc_destroy+0xee/0x340
[ 1432.589062][ C2] dev_shutdown+0x164/0x350
[ 1432.589290][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1432.589608][ C2] ? mutex_is_locked+0x17/0x50
[ 1432.589847][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1432.590184][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1432.590496][ C2] default_device_exit_batch+0x234/0x2d0
[ 1432.590776][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1432.591084][ C2] ? ops_exit_list+0xb4/0x170
[ 1432.591323][ C2] cleanup_net+0x4f3/0xb60
[ 1432.591545][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1432.591827][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1432.592076][ C2] ? lock_acquire+0x1c1/0x220
[ 1432.592312][ C2] ? process_one_work+0x714/0x1310
[ 1432.592570][ C2] process_one_work+0x78c/0x1310
[ 1432.592821][ C2] ? hlock_class+0x4e/0x130
[ 1432.593053][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1432.593324][ C2] ? assign_work+0x16c/0x240
[ 1432.593558][ C2] worker_thread+0x73d/0x1010
[ 1432.593799][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1432.594070][ C2] kthread+0x28f/0x360
[ 1432.594275][ C2] ? __pfx_kthread+0x10/0x10
[ 1432.594510][ C2] ret_from_fork+0x31/0x70
[ 1432.594733][ C2] ? __pfx_kthread+0x10/0x10
[ 1432.594965][ C2] ret_from_fork_asm+0x1b/0x30
[ 1432.595215][ C2]
[ 1443.143973][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 1311085 jiffies s: 4309 root: 0x4/.
[ 1443.144626][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 1443.145022][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 1443.145370][ C2] NMI backtrace for cpu 2
[ 1443.145378][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1443.145383][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1443.145386][ C2] Workqueue: netns cleanup_net
[ 1443.145397][ C2] RIP: 0010:__kasan_check_read+0x0/0x20
[ 1443.145405][ C2] Code: 48 c7 c7 b0 c2 be af 5b 5d 41 5c e9 9a b3 9b ff 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 8b 0c 24 89 f6 31 d2 e9 af ef ff ff 66 66 2e 0f 1f
[ 1443.145407][ C2] RSP: 0018:ffffc900000bf2a8 EFLAGS: 00000202
[ 1443.145410][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1443.145412][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1443.145414][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1443.145417][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1443.145419][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1443.145422][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1443.145425][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1443.145429][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1443.145431][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1443.145432][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1443.145434][ C2] PKRU: 55555554
[ 1443.145435][ C2] Call Trace:
[ 1443.145439][ C2]
[ 1443.145443][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 1443.145450][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 1443.145456][ C2] ? nmi_handle+0x153/0x420
[ 1443.145462][ C2] ? default_do_nmi+0x41/0x100
[ 1443.145468][ C2] ? exc_nmi+0xf3/0x120
[ 1443.145470][ C2] ? end_repeat_nmi+0xf/0x60
[ 1443.145476][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1443.145482][ C2] ? __pfx___kasan_check_read+0x10/0x10
[ 1443.145485][ C2] ? __pfx___kasan_check_read+0x10/0x10
[ 1443.145487][ C2] ? __pfx___kasan_check_read+0x10/0x10
[ 1443.145490][ C2]
[ 1443.145491][ C2]
[ 1443.145492][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 1443.145496][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1443.145500][ C2] ? __pfx___schedule+0x10/0x10
[ 1443.145506][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1443.145513][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1443.145516][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1443.145520][ C2] ? lock_acquire+0x1c1/0x220
[ 1443.145524][ C2] ? __mutex_lock+0x33e/0xb10
[ 1443.145530][ C2] ? __mutex_lock+0x811/0xb10
[ 1443.145534][ C2] _raw_spin_lock+0x67/0x80
[ 1443.145538][ C2] __mutex_lock+0x33e/0xb10
[ 1443.145542][ C2] ? __lock_release+0x40f/0x880
[ 1443.145545][ C2] ? __pfx___lock_release+0x10/0x10
[ 1443.145548][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1443.145554][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1443.145557][ C2] ? __pfx___up_read+0x10/0x10
[ 1443.145562][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1443.145565][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1443.145571][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1443.145577][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1443.145581][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1443.145585][ C2] __tcf_action_put+0x3d/0xf0
[ 1443.145590][ C2] tcf_action_destroy+0x43/0x130
[ 1443.145594][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1443.145598][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1443.145610][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1443.145619][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1443.145627][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1443.145636][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1443.145646][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1443.145653][ C2] ? __lock_release+0x40f/0x880
[ 1443.145657][ C2] ? __mutex_lock+0x26e/0xb10
[ 1443.145661][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1443.145671][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1443.145679][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1443.145683][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1443.145688][ C2] tcf_chain_flush+0x1e0/0x320
[ 1443.145691][ C2] __tcf_block_put+0x113/0x270
[ 1443.145695][ C2] tcf_block_put+0xaf/0xf0
[ 1443.145698][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1443.145702][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1443.145710][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1443.145716][ C2] __qdisc_destroy+0xee/0x340
[ 1443.145720][ C2] dev_shutdown+0x164/0x350
[ 1443.145724][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1443.145729][ C2] ? mutex_is_locked+0x17/0x50
[ 1443.145734][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1443.145738][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1443.145745][ C2] default_device_exit_batch+0x234/0x2d0
[ 1443.145749][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1443.145753][ C2] ? ops_exit_list+0xb4/0x170
[ 1443.145756][ C2] cleanup_net+0x4f3/0xb60
[ 1443.145760][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1443.145763][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1443.145766][ C2] ? lock_acquire+0x1c1/0x220
[ 1443.145769][ C2] ? process_one_work+0x714/0x1310
[ 1443.145775][ C2] process_one_work+0x78c/0x1310
[ 1443.145779][ C2] ? hlock_class+0x4e/0x130
[ 1443.145784][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1443.145788][ C2] ? assign_work+0x16c/0x240
[ 1443.145792][ C2] worker_thread+0x73d/0x1010
[ 1443.145797][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1443.145800][ C2] kthread+0x28f/0x360
[ 1443.145803][ C2] ? __pfx_kthread+0x10/0x10
[ 1443.145806][ C2] ret_from_fork+0x31/0x70
[ 1443.145809][ C2] ? __pfx_kthread+0x10/0x10
[ 1443.145811][ C2] ret_from_fork_asm+0x1b/0x30
[ 1443.145821][ C2]
[ 1468.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1248s! [kworker/u8:0:11]
[ 1468.564121][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1468.564547][ C2] irq event stamp: 753065
[ 1468.564764][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1468.565242][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1468.565715][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1468.566195][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1468.566660][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1468.567134][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1468.567760][ C2] Workqueue: netns cleanup_net
[ 1468.568018][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 1468.568357][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 1468.569347][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 1468.569659][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1468.570060][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1468.570466][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1468.570866][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1468.571265][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1468.571662][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1468.572115][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1468.572447][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1468.572852][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1468.573264][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1468.573672][ C2] PKRU: 55555554
[ 1468.573865][ C2] Call Trace:
[ 1468.574037][ C2]
[ 1468.574186][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1468.574453][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1468.574704][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1468.574983][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1468.575262][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1468.575562][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1468.575829][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1468.576139][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1468.576406][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1468.576721][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1468.577019][ C2]
[ 1468.577176][ C2]
[ 1468.577326][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1468.577646][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1468.577944][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1468.578242][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1468.578559][ C2] ? __pfx___schedule+0x10/0x10
[ 1468.578812][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1468.579071][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1468.579346][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1468.579637][ C2] ? lock_acquire+0x1c1/0x220
[ 1468.579885][ C2] ? __mutex_lock+0x33e/0xb10
[ 1468.580131][ C2] ? __mutex_lock+0x811/0xb10
[ 1468.580373][ C2] _raw_spin_lock+0x67/0x80
[ 1468.580611][ C2] __mutex_lock+0x33e/0xb10
[ 1468.580851][ C2] ? __lock_release+0x40f/0x880
[ 1468.581106][ C2] ? __pfx___lock_release+0x10/0x10
[ 1468.581372][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1468.581679][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1468.581944][ C2] ? __pfx___up_read+0x10/0x10
[ 1468.582195][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1468.582467][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1468.582741][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1468.583038][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1468.583338][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1468.583623][ C2] __tcf_action_put+0x3d/0xf0
[ 1468.583878][ C2] tcf_action_destroy+0x43/0x130
[ 1468.584136][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1468.584382][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1468.584709][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1468.584988][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1468.585291][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1468.585587][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1468.585873][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1468.586191][ C2] ? __lock_release+0x40f/0x880
[ 1468.586437][ C2] ? __mutex_lock+0x26e/0xb10
[ 1468.586677][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1468.586956][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1468.587261][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1468.587568][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1468.587812][ C2] tcf_chain_flush+0x1e0/0x320
[ 1468.588055][ C2] __tcf_block_put+0x113/0x270
[ 1468.588303][ C2] tcf_block_put+0xaf/0xf0
[ 1468.588532][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1468.588797][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1468.589067][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1468.589343][ C2] __qdisc_destroy+0xee/0x340
[ 1468.589584][ C2] dev_shutdown+0x164/0x350
[ 1468.589813][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1468.590133][ C2] ? mutex_is_locked+0x17/0x50
[ 1468.590382][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1468.590723][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1468.591043][ C2] default_device_exit_batch+0x234/0x2d0
[ 1468.591326][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1468.591638][ C2] ? ops_exit_list+0xb4/0x170
[ 1468.591881][ C2] cleanup_net+0x4f3/0xb60
[ 1468.592109][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1468.592395][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1468.592648][ C2] ? lock_acquire+0x1c1/0x220
[ 1468.592892][ C2] ? process_one_work+0x714/0x1310
[ 1468.593157][ C2] process_one_work+0x78c/0x1310
[ 1468.593413][ C2] ? hlock_class+0x4e/0x130
[ 1468.593646][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1468.593935][ C2] ? assign_work+0x16c/0x240
[ 1468.594176][ C2] worker_thread+0x73d/0x1010
[ 1468.594420][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1468.594685][ C2] kthread+0x28f/0x360
[ 1468.594896][ C2] ? __pfx_kthread+0x10/0x10
[ 1468.595135][ C2] ret_from_fork+0x31/0x70
[ 1468.595359][ C2] ? __pfx_kthread+0x10/0x10
[ 1468.595597][ C2] ret_from_fork_asm+0x1b/0x30
[ 1468.595846][ C2]
[ 1484.363939][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 1484.364455][ C2] rcu: 2-....: (1350538 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=336920
[ 1484.365167][ C2] rcu: (t=1352611 jiffies g=119533 q=6114 ncpus=4)
[ 1484.365628][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1484.366111][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1484.366816][ C2] Workqueue: netns cleanup_net
[ 1484.367067][ C2] RIP: 0010:kasan_report+0x22/0xf0
[ 1484.367427][ C2] Code: 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca 65 4c 8b 3c 25 80 b8 1f 00 <41> 8b 87 e0 17 00 00 85 c0 0f 85 b7 00 00 00 48 89 fd 49 89 f6 89
[ 1484.368471][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000282
[ 1484.368864][ C2] RAX: 00000000000000fb RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1484.369283][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1484.369733][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1484.370214][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1484.370726][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: ffff888001c02640
[ 1484.371232][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1484.371808][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1484.372230][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1484.372731][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1484.373236][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1484.373745][ C2] PKRU: 55555554
[ 1484.373960][ C2] Call Trace:
[ 1484.374177][ C2]
[ 1484.374372][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 1484.374710][ C2] ? print_cpu_stall+0x263/0x6a0
[ 1484.375039][ C2] ? check_cpu_stall+0x284/0x500
[ 1484.375368][ C2] ? rcu_pending+0x92/0x360
[ 1484.375655][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 1484.376004][ C2] ? update_process_times+0xb9/0x110
[ 1484.376352][ C2] ? tick_sched_handle+0x67/0x130
[ 1484.376681][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 1484.377047][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1484.377354][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 1484.377753][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1484.378110][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1484.378446][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1484.378773][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1484.379152][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1484.379484][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1484.379865][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1484.380254][ C2]
[ 1484.380439][ C2]
[ 1484.380605][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1484.381011][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1484.381376][ C2] ? kasan_report+0x22/0xf0
[ 1484.381647][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1484.382019][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 1484.382368][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1484.382769][ C2] ? __pfx___schedule+0x10/0x10
[ 1484.383031][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1484.383280][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1484.383565][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1484.383868][ C2] ? lock_acquire+0x1c1/0x220
[ 1484.384110][ C2] ? __mutex_lock+0x33e/0xb10
[ 1484.384410][ C2] ? __mutex_lock+0x811/0xb10
[ 1484.384683][ C2] _raw_spin_lock+0x67/0x80
[ 1484.384913][ C2] __mutex_lock+0x33e/0xb10
[ 1484.385141][ C2] ? __lock_release+0x40f/0x880
[ 1484.385417][ C2] ? __pfx___lock_release+0x10/0x10
[ 1484.385725][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1484.386115][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1484.386393][ C2] ? __pfx___up_read+0x10/0x10
[ 1484.386636][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1484.386954][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1484.387278][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1484.387650][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1484.388035][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1484.388409][ C2] __tcf_action_put+0x3d/0xf0
[ 1484.388718][ C2] tcf_action_destroy+0x43/0x130
[ 1484.389053][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1484.389380][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1484.389805][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1484.390174][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1484.390570][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1484.390965][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1484.391347][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1484.391759][ C2] ? __lock_release+0x40f/0x880
[ 1484.392090][ C2] ? __mutex_lock+0x26e/0xb10
[ 1484.392411][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1484.392781][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1484.393193][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1484.393595][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1484.393945][ C2] tcf_chain_flush+0x1e0/0x320
[ 1484.394272][ C2] __tcf_block_put+0x113/0x270
[ 1484.394590][ C2] tcf_block_put+0xaf/0xf0
[ 1484.394870][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1484.395221][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1484.395552][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1484.395916][ C2] __qdisc_destroy+0xee/0x340
[ 1484.396224][ C2] dev_shutdown+0x164/0x350
[ 1484.396536][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1484.396934][ C2] ? mutex_is_locked+0x17/0x50
[ 1484.397251][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1484.397646][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1484.398059][ C2] default_device_exit_batch+0x234/0x2d0
[ 1484.398405][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1484.398808][ C2] ? ops_exit_list+0xb4/0x170
[ 1484.399047][ C2] cleanup_net+0x4f3/0xb60
[ 1484.399274][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1484.399570][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1484.399820][ C2] ? lock_acquire+0x1c1/0x220
[ 1484.400126][ C2] ? process_one_work+0x714/0x1310
[ 1484.400405][ C2] process_one_work+0x78c/0x1310
[ 1484.400656][ C2] ? hlock_class+0x4e/0x130
[ 1484.400884][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1484.401196][ C2] ? assign_work+0x16c/0x240
[ 1484.401494][ C2] worker_thread+0x73d/0x1010
[ 1484.401779][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1484.402061][ C2] kthread+0x28f/0x360
[ 1484.402313][ C2] ? __pfx_kthread+0x10/0x10
[ 1484.402611][ C2] ret_from_fork+0x31/0x70
[ 1484.402907][ C2] ? __pfx_kthread+0x10/0x10
[ 1484.403139][ C2] ret_from_fork_asm+0x1b/0x30
[ 1484.403424][ C2]
[ 1508.563632][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1285s! [kworker/u8:0:11]
[ 1508.564096][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1508.564508][ C2] irq event stamp: 753065
[ 1508.564724][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1508.565193][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1508.565655][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1508.566126][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1508.566583][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1508.567052][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1508.567667][ C2] Workqueue: netns cleanup_net
[ 1508.567912][ C2] RIP: 0010:kasan_report+0xd2/0xf0
[ 1508.568182][ C2] Code: 24 28 4c 89 6c 24 30 e8 7c f5 ff ff 48 8d 7c 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd ff ff ff 34 24 9d <48> 83 c4 70 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc
[ 1508.569144][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000282
[ 1508.569454][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb3f0c
[ 1508.569861][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1508.570257][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1508.570649][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000000
[ 1508.571046][ C2] R13: ffffffffaeeb3f0c R14: 0000000000000004 R15: ffff888001c02640
[ 1508.571448][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1508.571891][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1508.572224][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1508.572619][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1508.573018][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1508.573414][ C2] PKRU: 55555554
[ 1508.573613][ C2] Call Trace:
[ 1508.573797][ C2]
[ 1508.573947][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1508.574216][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1508.574460][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1508.574735][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1508.575015][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1508.575309][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1508.575572][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1508.575877][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1508.576139][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1508.576448][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1508.576742][ C2]
[ 1508.576891][ C2]
[ 1508.577042][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1508.577360][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1508.577657][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1508.577952][ C2] ? kasan_report+0xd2/0xf0
[ 1508.578188][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1508.578484][ C2] ? kasan_report+0x8/0xf0
[ 1508.578713][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 1508.578999][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1508.579311][ C2] ? __pfx___schedule+0x10/0x10
[ 1508.579560][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1508.579809][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1508.580079][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1508.580361][ C2] ? lock_acquire+0x1c1/0x220
[ 1508.580599][ C2] ? __mutex_lock+0x33e/0xb10
[ 1508.580842][ C2] ? __mutex_lock+0x811/0xb10
[ 1508.581079][ C2] _raw_spin_lock+0x67/0x80
[ 1508.581306][ C2] __mutex_lock+0x33e/0xb10
[ 1508.581593][ C2] ? __lock_release+0x40f/0x880
[ 1508.581899][ C2] ? __pfx___lock_release+0x10/0x10
[ 1508.582166][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1508.582469][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1508.582729][ C2] ? __pfx___up_read+0x10/0x10
[ 1508.583024][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1508.583382][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1508.583716][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1508.584016][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1508.584400][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1508.584776][ C2] __tcf_action_put+0x3d/0xf0
[ 1508.585107][ C2] tcf_action_destroy+0x43/0x130
[ 1508.585438][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1508.585762][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1508.586202][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1508.586576][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1508.586995][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1508.587402][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1508.587792][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1508.588206][ C2] ? __lock_release+0x40f/0x880
[ 1508.588547][ C2] ? __mutex_lock+0x26e/0xb10
[ 1508.588880][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1508.589281][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1508.589710][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1508.590125][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1508.590395][ C2] tcf_chain_flush+0x1e0/0x320
[ 1508.590731][ C2] __tcf_block_put+0x113/0x270
[ 1508.591064][ C2] tcf_block_put+0xaf/0xf0
[ 1508.591346][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1508.591681][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1508.592036][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1508.592420][ C2] __qdisc_destroy+0xee/0x340
[ 1508.592752][ C2] dev_shutdown+0x164/0x350
[ 1508.593074][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1508.593535][ C2] ? mutex_is_locked+0x17/0x50
[ 1508.593860][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1508.594331][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1508.594777][ C2] default_device_exit_batch+0x234/0x2d0
[ 1508.595081][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1508.595406][ C2] ? ops_exit_list+0xb4/0x170
[ 1508.595719][ C2] cleanup_net+0x4f3/0xb60
[ 1508.595961][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1508.596314][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1508.596624][ C2] ? lock_acquire+0x1c1/0x220
[ 1508.596868][ C2] ? process_one_work+0x714/0x1310
[ 1508.597169][ C2] process_one_work+0x78c/0x1310
[ 1508.597487][ C2] ? hlock_class+0x4e/0x130
[ 1508.597797][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1508.598071][ C2] ? assign_work+0x16c/0x240
[ 1508.598367][ C2] worker_thread+0x73d/0x1010
[ 1508.598679][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1508.599039][ C2] kthread+0x28f/0x360
[ 1508.599326][ C2] ? __pfx_kthread+0x10/0x10
[ 1508.599648][ C2] ret_from_fork+0x31/0x70
[ 1508.599954][ C2] ? __pfx_kthread+0x10/0x10
[ 1508.600279][ C2] ret_from_fork_asm+0x1b/0x30
[ 1508.600625][ C2]
[ 1536.563631][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1312s! [kworker/u8:0:11]
[ 1536.564095][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1536.564509][ C2] irq event stamp: 753065
[ 1536.564728][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1536.565199][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1536.565665][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1536.566131][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1536.566593][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1536.567064][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1536.567674][ C2] Workqueue: netns cleanup_net
[ 1536.567917][ C2] RIP: 0010:queued_spin_lock_slowpath+0xb0/0xb90
[ 1536.568239][ C2] Code: 01 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 c1 ed 03 41 83 e4 07 49 01 c5 41 83 c4 03 be 04 00 00 00 48 89 ef e8 d0 79 e9 fd <41> 0f b6 45 00 41 38 c4 7c 08 84 c0 0f 85 42 09 00 00 8b 5d 00 85
[ 1536.569202][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 1536.569506][ C2] RAX: 0000000000000001 RBX: 000000000000000b RCX: ffffffffaeeb35b0
[ 1536.569909][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1536.570305][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1536.570701][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1536.571096][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1536.571498][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1536.571940][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1536.572271][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1536.572666][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1536.573062][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1536.573466][ C2] PKRU: 55555554
[ 1536.573646][ C2] Call Trace:
[ 1536.573816][ C2]
[ 1536.573966][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1536.574229][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1536.574469][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1536.574747][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1536.575018][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1536.575308][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1536.575574][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1536.575876][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1536.576136][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1536.576445][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1536.576739][ C2]
[ 1536.576887][ C2]
[ 1536.577039][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1536.577354][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1536.577642][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1536.577929][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1536.578240][ C2] ? __pfx___schedule+0x10/0x10
[ 1536.578489][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1536.578739][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1536.579009][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1536.579293][ C2] ? lock_acquire+0x1c1/0x220
[ 1536.579530][ C2] ? __mutex_lock+0x33e/0xb10
[ 1536.579768][ C2] ? __mutex_lock+0x811/0xb10
[ 1536.580007][ C2] _raw_spin_lock+0x67/0x80
[ 1536.580238][ C2] __mutex_lock+0x33e/0xb10
[ 1536.580466][ C2] ? __lock_release+0x40f/0x880
[ 1536.580716][ C2] ? __pfx___lock_release+0x10/0x10
[ 1536.580979][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1536.581275][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1536.581530][ C2] ? __pfx___up_read+0x10/0x10
[ 1536.581774][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1536.582040][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1536.582312][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1536.582602][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1536.582892][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1536.583178][ C2] __tcf_action_put+0x3d/0xf0
[ 1536.583415][ C2] tcf_action_destroy+0x43/0x130
[ 1536.583670][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1536.583908][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1536.584228][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1536.584499][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1536.584796][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1536.585088][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1536.585374][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1536.585681][ C2] ? __lock_release+0x40f/0x880
[ 1536.585926][ C2] ? __mutex_lock+0x26e/0xb10
[ 1536.586165][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1536.586445][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1536.586752][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1536.587055][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1536.587302][ C2] tcf_chain_flush+0x1e0/0x320
[ 1536.587543][ C2] __tcf_block_put+0x113/0x270
[ 1536.587784][ C2] tcf_block_put+0xaf/0xf0
[ 1536.588017][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1536.588276][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1536.588547][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1536.588820][ C2] __qdisc_destroy+0xee/0x340
[ 1536.589063][ C2] dev_shutdown+0x164/0x350
[ 1536.589295][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1536.589618][ C2] ? mutex_is_locked+0x17/0x50
[ 1536.589860][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1536.590202][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1536.590518][ C2] default_device_exit_batch+0x234/0x2d0
[ 1536.590801][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1536.591117][ C2] ? ops_exit_list+0xb4/0x170
[ 1536.591357][ C2] cleanup_net+0x4f3/0xb60
[ 1536.591585][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1536.591869][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1536.592122][ C2] ? lock_acquire+0x1c1/0x220
[ 1536.592359][ C2] ? process_one_work+0x714/0x1310
[ 1536.592618][ C2] process_one_work+0x78c/0x1310
[ 1536.592869][ C2] ? hlock_class+0x4e/0x130
[ 1536.593099][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1536.593371][ C2] ? assign_work+0x16c/0x240
[ 1536.593616][ C2] worker_thread+0x73d/0x1010
[ 1536.593858][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1536.594117][ C2] kthread+0x28f/0x360
[ 1536.594324][ C2] ? __pfx_kthread+0x10/0x10
[ 1536.594558][ C2] ret_from_fork+0x31/0x70
[ 1536.594785][ C2] ? __pfx_kthread+0x10/0x10
[ 1536.595019][ C2] ret_from_fork_asm+0x1b/0x30
[ 1536.595269][ C2]
[ 1541.447955][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 1409389 jiffies s: 4309 root: 0x4/.
[ 1541.448611][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 1541.448974][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 1541.449250][ C2] NMI backtrace for cpu 2
[ 1541.449255][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1541.449260][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1541.449264][ C2] Workqueue: netns cleanup_net
[ 1541.449272][ C2] RIP: 0010:kasan_report+0xce/0xf0
[ 1541.449280][ C2] Code: 24 20 88 5c 24 28 4c 89 6c 24 30 e8 7c f5 ff ff 48 8d 7c 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd ff ff 34 24 9d 48 83 c4 70 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3
[ 1541.449283][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000246
[ 1541.449286][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb3f0c
[ 1541.449287][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1541.449289][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1541.449291][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000000
[ 1541.449293][ C2] R13: ffffffffaeeb3f0c R14: 0000000000000004 R15: ffff888001c02640
[ 1541.449295][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1541.449297][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1541.449301][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1541.449303][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1541.449304][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1541.449305][ C2] PKRU: 55555554
[ 1541.449306][ C2] Call Trace:
[ 1541.449310][ C2]
[ 1541.449313][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 1541.449320][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 1541.449326][ C2] ? nmi_handle+0x153/0x420
[ 1541.449332][ C2] ? default_do_nmi+0x41/0x100
[ 1541.449337][ C2] ? exc_nmi+0xf3/0x120
[ 1541.449340][ C2] ? end_repeat_nmi+0xf/0x60
[ 1541.449344][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1541.449350][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1541.449354][ C2] ? kasan_report+0xce/0xf0
[ 1541.449357][ C2] ? kasan_report+0xce/0xf0
[ 1541.449360][ C2] ? kasan_report+0xce/0xf0
[ 1541.449363][ C2]
[ 1541.449364][ C2]
[ 1541.449368][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 1541.449372][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1541.449376][ C2] ? __pfx___schedule+0x10/0x10
[ 1541.449383][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1541.449390][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1541.449392][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1541.449396][ C2] ? lock_acquire+0x1c1/0x220
[ 1541.449398][ C2] ? __mutex_lock+0x33e/0xb10
[ 1541.449403][ C2] ? __mutex_lock+0x811/0xb10
[ 1541.449406][ C2] _raw_spin_lock+0x67/0x80
[ 1541.449409][ C2] __mutex_lock+0x33e/0xb10
[ 1541.449413][ C2] ? __lock_release+0x40f/0x880
[ 1541.449416][ C2] ? __pfx___lock_release+0x10/0x10
[ 1541.449419][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1541.449425][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1541.449429][ C2] ? __pfx___up_read+0x10/0x10
[ 1541.449433][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1541.449437][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1541.449442][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1541.449449][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1541.449452][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1541.449456][ C2] __tcf_action_put+0x3d/0xf0
[ 1541.449461][ C2] tcf_action_destroy+0x43/0x130
[ 1541.449465][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1541.449469][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1541.449481][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1541.449490][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1541.449498][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1541.449507][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1541.449516][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1541.449524][ C2] ? __lock_release+0x40f/0x880
[ 1541.449528][ C2] ? __mutex_lock+0x26e/0xb10
[ 1541.449532][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1541.449541][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1541.449549][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1541.449554][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1541.449558][ C2] tcf_chain_flush+0x1e0/0x320
[ 1541.449562][ C2] __tcf_block_put+0x113/0x270
[ 1541.449566][ C2] tcf_block_put+0xaf/0xf0
[ 1541.449569][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1541.449574][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1541.449581][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1541.449588][ C2] __qdisc_destroy+0xee/0x340
[ 1541.449592][ C2] dev_shutdown+0x164/0x350
[ 1541.449596][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1541.449602][ C2] ? mutex_is_locked+0x17/0x50
[ 1541.449605][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1541.449608][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1541.449612][ C2] default_device_exit_batch+0x234/0x2d0
[ 1541.449615][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1541.449619][ C2] ? ops_exit_list+0xb4/0x170
[ 1541.449622][ C2] cleanup_net+0x4f3/0xb60
[ 1541.449625][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1541.449628][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1541.449631][ C2] ? lock_acquire+0x1c1/0x220
[ 1541.449634][ C2] ? process_one_work+0x714/0x1310
[ 1541.449639][ C2] process_one_work+0x78c/0x1310
[ 1541.449644][ C2] ? hlock_class+0x4e/0x130
[ 1541.449647][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1541.449652][ C2] ? assign_work+0x16c/0x240
[ 1541.449656][ C2] worker_thread+0x73d/0x1010
[ 1541.449661][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1541.449664][ C2] kthread+0x28f/0x360
[ 1541.449667][ C2] ? __pfx_kthread+0x10/0x10
[ 1541.449670][ C2] ret_from_fork+0x31/0x70
[ 1541.449673][ C2] ? __pfx_kthread+0x10/0x10
[ 1541.449675][ C2] ret_from_fork_asm+0x1b/0x30
[ 1541.449685][ C2]
[ 1562.401937][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 1562.402315][ C2] rcu: 2-....: (1428445 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=356361
[ 1562.402861][ C2] rcu: (t=1430649 jiffies g=119533 q=6114 ncpus=4)
[ 1562.403198][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1562.403671][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1562.404291][ C2] Workqueue: netns cleanup_net
[ 1562.404540][ C2] RIP: 0010:kasan_report+0xd2/0xf0
[ 1562.404804][ C2] Code: 24 28 4c 89 6c 24 30 e8 7c f5 ff ff 48 8d 7c 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd ff ff ff 34 24 9d <48> 83 c4 70 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc
[ 1562.405761][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 1562.406067][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb35b0
[ 1562.406460][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1562.406853][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1562.407249][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000000
[ 1562.407645][ C2] R13: ffffffffaeeb35b0 R14: 0000000000000004 R15: ffff888001c02640
[ 1562.408039][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1562.408479][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1562.408807][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1562.409201][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1562.409597][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1562.409991][ C2] PKRU: 55555554
[ 1562.410171][ C2] Call Trace:
[ 1562.410340][ C2]
[ 1562.410489][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 1562.410761][ C2] ? print_cpu_stall+0x263/0x6a0
[ 1562.411012][ C2] ? check_cpu_stall+0x284/0x500
[ 1562.411262][ C2] ? rcu_pending+0x92/0x360
[ 1562.411490][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 1562.411758][ C2] ? update_process_times+0xb9/0x110
[ 1562.412034][ C2] ? tick_sched_handle+0x67/0x130
[ 1562.412289][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 1562.412570][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1562.412811][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 1562.413120][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1562.413400][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1562.413689][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1562.413960][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1562.414265][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1562.414524][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1562.414830][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1562.415125][ C2]
[ 1562.415275][ C2]
[ 1562.415424][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1562.415738][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1562.416027][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1562.416323][ C2] ? kasan_report+0xd2/0xf0
[ 1562.416556][ C2] kasan_check_range+0x39/0x1c0
[ 1562.416813][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 1562.417098][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1562.417407][ C2] ? __pfx___schedule+0x10/0x10
[ 1562.417653][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1562.417907][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1562.418179][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1562.418461][ C2] ? lock_acquire+0x1c1/0x220
[ 1562.418698][ C2] ? __mutex_lock+0x33e/0xb10
[ 1562.418943][ C2] ? __mutex_lock+0x811/0xb10
[ 1562.419180][ C2] _raw_spin_lock+0x67/0x80
[ 1562.419411][ C2] __mutex_lock+0x33e/0xb10
[ 1562.419638][ C2] ? __lock_release+0x40f/0x880
[ 1562.419882][ C2] ? __pfx___lock_release+0x10/0x10
[ 1562.420152][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1562.420449][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1562.420701][ C2] ? __pfx___up_read+0x10/0x10
[ 1562.420945][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1562.421210][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1562.421476][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1562.421767][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1562.422058][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1562.422344][ C2] __tcf_action_put+0x3d/0xf0
[ 1562.422585][ C2] tcf_action_destroy+0x43/0x130
[ 1562.422835][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1562.423074][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1562.423405][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1562.423676][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1562.423977][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1562.424271][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1562.424558][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1562.424869][ C2] ? __lock_release+0x40f/0x880
[ 1562.425116][ C2] ? __mutex_lock+0x26e/0xb10
[ 1562.425355][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1562.425646][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1562.425949][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1562.426252][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1562.426499][ C2] tcf_chain_flush+0x1e0/0x320
[ 1562.426745][ C2] __tcf_block_put+0x113/0x270
[ 1562.426990][ C2] tcf_block_put+0xaf/0xf0
[ 1562.427215][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1562.427473][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1562.427742][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1562.428019][ C2] __qdisc_destroy+0xee/0x340
[ 1562.428262][ C2] dev_shutdown+0x164/0x350
[ 1562.428493][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1562.428817][ C2] ? mutex_is_locked+0x17/0x50
[ 1562.429065][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1562.429402][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1562.429723][ C2] default_device_exit_batch+0x234/0x2d0
[ 1562.430007][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1562.430314][ C2] ? ops_exit_list+0xb4/0x170
[ 1562.430557][ C2] cleanup_net+0x4f3/0xb60
[ 1562.430784][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1562.431066][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1562.431316][ C2] ? lock_acquire+0x1c1/0x220
[ 1562.431568][ C2] ? process_one_work+0x714/0x1310
[ 1562.431827][ C2] process_one_work+0x78c/0x1310
[ 1562.432082][ C2] ? hlock_class+0x4e/0x130
[ 1562.432312][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1562.432586][ C2] ? assign_work+0x16c/0x240
[ 1562.432817][ C2] worker_thread+0x73d/0x1010
[ 1562.433059][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1562.433334][ C2] kthread+0x28f/0x360
[ 1562.433542][ C2] ? __pfx_kthread+0x10/0x10
[ 1562.433774][ C2] ret_from_fork+0x31/0x70
[ 1562.434008][ C2] ? __pfx_kthread+0x10/0x10
[ 1562.434238][ C2] ret_from_fork_asm+0x1b/0x30
[ 1562.434492][ C2]
[ 1588.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1360s! [kworker/u8:0:11]
[ 1588.564082][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1588.564498][ C2] irq event stamp: 753065
[ 1588.564717][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1588.565187][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1588.565654][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1588.566123][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1588.566580][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1588.567049][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1588.567658][ C2] Workqueue: netns cleanup_net
[ 1588.567901][ C2] RIP: 0010:kasan_report+0x19/0xf0
[ 1588.568167][ C2] Code: 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca <65> 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 85 c0 0f 85 b7 00
[ 1588.569123][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 1588.569425][ C2] RAX: 0000000000000001 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 1588.569819][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1588.570212][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 1588.570603][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1588.570997][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1588.571390][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1588.571830][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1588.572159][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1588.572553][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1588.572948][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1588.573352][ C2] PKRU: 55555554
[ 1588.573532][ C2] Call Trace:
[ 1588.573700][ C2]
[ 1588.573851][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1588.574113][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1588.574354][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1588.574628][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1588.574896][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1588.575183][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1588.575445][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1588.575748][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1588.576007][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1588.576311][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1588.576606][ C2]
[ 1588.576753][ C2]
[ 1588.576904][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1588.577219][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1588.577504][ C2] ? kasan_report+0x19/0xf0
[ 1588.577736][ C2] kasan_check_range+0x39/0x1c0
[ 1588.577987][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 1588.578266][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1588.578574][ C2] ? __pfx___schedule+0x10/0x10
[ 1588.578823][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1588.579073][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1588.579342][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1588.579626][ C2] ? lock_acquire+0x1c1/0x220
[ 1588.579863][ C2] ? __mutex_lock+0x33e/0xb10
[ 1588.580103][ C2] ? __mutex_lock+0x811/0xb10
[ 1588.580346][ C2] _raw_spin_lock+0x67/0x80
[ 1588.580578][ C2] __mutex_lock+0x33e/0xb10
[ 1588.580808][ C2] ? __lock_release+0x40f/0x880
[ 1588.581054][ C2] ? __pfx___lock_release+0x10/0x10
[ 1588.581314][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1588.581613][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1588.581866][ C2] ? __pfx___up_read+0x10/0x10
[ 1588.582113][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1588.582379][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1588.582653][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1588.582941][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1588.583243][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1588.583525][ C2] __tcf_action_put+0x3d/0xf0
[ 1588.583764][ C2] tcf_action_destroy+0x43/0x130
[ 1588.584017][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1588.584254][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1588.584579][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1588.584861][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1588.585158][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1588.585452][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1588.585735][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1588.586045][ C2] ? __lock_release+0x40f/0x880
[ 1588.586292][ C2] ? __mutex_lock+0x26e/0xb10
[ 1588.586531][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1588.586810][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1588.587117][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1588.587419][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1588.587665][ C2] tcf_chain_flush+0x1e0/0x320
[ 1588.587909][ C2] __tcf_block_put+0x113/0x270
[ 1588.588153][ C2] tcf_block_put+0xaf/0xf0
[ 1588.588378][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1588.588638][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1588.588909][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1588.589183][ C2] __qdisc_destroy+0xee/0x340
[ 1588.589423][ C2] dev_shutdown+0x164/0x350
[ 1588.589651][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1588.589973][ C2] ? mutex_is_locked+0x17/0x50
[ 1588.590215][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1588.590553][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1588.590867][ C2] default_device_exit_batch+0x234/0x2d0
[ 1588.591151][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1588.591460][ C2] ? ops_exit_list+0xb4/0x170
[ 1588.591698][ C2] cleanup_net+0x4f3/0xb60
[ 1588.591922][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1588.592208][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1588.592456][ C2] ? lock_acquire+0x1c1/0x220
[ 1588.592692][ C2] ? process_one_work+0x714/0x1310
[ 1588.592949][ C2] process_one_work+0x78c/0x1310
[ 1588.593212][ C2] ? hlock_class+0x4e/0x130
[ 1588.593443][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1588.593713][ C2] ? assign_work+0x16c/0x240
[ 1588.593947][ C2] worker_thread+0x73d/0x1010
[ 1588.594187][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1588.594445][ C2] kthread+0x28f/0x360
[ 1588.594652][ C2] ? __pfx_kthread+0x10/0x10
[ 1588.594884][ C2] ret_from_fork+0x31/0x70
[ 1588.595109][ C2] ? __pfx_kthread+0x10/0x10
[ 1588.595342][ C2] ret_from_fork_asm+0x1b/0x30
[ 1588.595591][ C2]
[ 1616.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1386s! [kworker/u8:0:11]
[ 1616.564088][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1616.564501][ C2] irq event stamp: 753065
[ 1616.564720][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1616.565189][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1616.565657][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1616.566125][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1616.566585][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1616.567053][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1616.567662][ C2] Workqueue: netns cleanup_net
[ 1616.567908][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 1616.568237][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 1616.569202][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 1616.569508][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1616.569905][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1616.570300][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1616.570696][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1616.571094][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1616.571491][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1616.571936][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1616.572270][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1616.572666][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1616.573075][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1616.573471][ C2] PKRU: 55555554
[ 1616.573652][ C2] Call Trace:
[ 1616.573821][ C2]
[ 1616.573970][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1616.574234][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1616.574476][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1616.574751][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1616.575021][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1616.575308][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1616.575573][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1616.575877][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1616.576138][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1616.576447][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1616.576740][ C2]
[ 1616.576889][ C2]
[ 1616.577040][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1616.577359][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1616.577650][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1616.577946][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1616.578257][ C2] ? __pfx___schedule+0x10/0x10
[ 1616.578506][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1616.578757][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1616.579031][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1616.579312][ C2] ? lock_acquire+0x1c1/0x220
[ 1616.579549][ C2] ? __mutex_lock+0x33e/0xb10
[ 1616.579789][ C2] ? __mutex_lock+0x811/0xb10
[ 1616.580027][ C2] _raw_spin_lock+0x67/0x80
[ 1616.580256][ C2] __mutex_lock+0x33e/0xb10
[ 1616.580487][ C2] ? __lock_release+0x40f/0x880
[ 1616.580733][ C2] ? __pfx___lock_release+0x10/0x10
[ 1616.580999][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1616.581295][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1616.581549][ C2] ? __pfx___up_read+0x10/0x10
[ 1616.581794][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1616.582061][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1616.582337][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1616.582627][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1616.582922][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1616.583212][ C2] __tcf_action_put+0x3d/0xf0
[ 1616.583453][ C2] tcf_action_destroy+0x43/0x130
[ 1616.583704][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1616.583945][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1616.584264][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1616.584537][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1616.584833][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1616.585128][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1616.585411][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1616.585721][ C2] ? __lock_release+0x40f/0x880
[ 1616.585968][ C2] ? __mutex_lock+0x26e/0xb10
[ 1616.586206][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1616.586487][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1616.586795][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1616.587098][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1616.587347][ C2] tcf_chain_flush+0x1e0/0x320
[ 1616.587591][ C2] __tcf_block_put+0x113/0x270
[ 1616.587835][ C2] tcf_block_put+0xaf/0xf0
[ 1616.588061][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1616.588321][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1616.588593][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1616.588867][ C2] __qdisc_destroy+0xee/0x340
[ 1616.589110][ C2] dev_shutdown+0x164/0x350
[ 1616.589340][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1616.589664][ C2] ? mutex_is_locked+0x17/0x50
[ 1616.589907][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1616.590247][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1616.590562][ C2] default_device_exit_batch+0x234/0x2d0
[ 1616.590850][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1616.591162][ C2] ? ops_exit_list+0xb4/0x170
[ 1616.591400][ C2] cleanup_net+0x4f3/0xb60
[ 1616.591628][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1616.591910][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1616.592160][ C2] ? lock_acquire+0x1c1/0x220
[ 1616.592400][ C2] ? process_one_work+0x714/0x1310
[ 1616.592660][ C2] process_one_work+0x78c/0x1310
[ 1616.592912][ C2] ? hlock_class+0x4e/0x130
[ 1616.593151][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1616.593423][ C2] ? assign_work+0x16c/0x240
[ 1616.593658][ C2] worker_thread+0x73d/0x1010
[ 1616.593897][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1616.594156][ C2] kthread+0x28f/0x360
[ 1616.594370][ C2] ? __pfx_kthread+0x10/0x10
[ 1616.594602][ C2] ret_from_fork+0x31/0x70
[ 1616.594829][ C2] ? __pfx_kthread+0x10/0x10
[ 1616.595063][ C2] ret_from_fork_asm+0x1b/0x30
[ 1616.595312][ C2]
[ 1639.751974][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 1507693 jiffies s: 4309 root: 0x4/.
[ 1639.752925][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 1639.753475][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 1639.753893][ C2] NMI backtrace for cpu 2
[ 1639.753900][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1639.753904][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1639.753907][ C2] Workqueue: netns cleanup_net
[ 1639.753915][ C2] RIP: 0010:report_enabled+0x19/0x30
[ 1639.753922][ C2] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 05 b9 a9 a4 05 48 d1 e8 83 e0 01 75 0d f0 48 0f ba 2d a7 a9 a4 05 00 <0f> 93 c0 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40
[ 1639.753925][ C2] RSP: 0018:ffffc900000bf200 EFLAGS: 00000247
[ 1639.753928][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb3f0c
[ 1639.753930][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1639.753931][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1639.753934][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1639.753935][ C2] R13: ffffffffaeeb3f0c R14: 0000000000000004 R15: ffff888001c02640
[ 1639.753937][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1639.753939][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1639.753943][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1639.753945][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1639.753946][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1639.753948][ C2] PKRU: 55555554
[ 1639.753949][ C2] Call Trace:
[ 1639.753952][ C2]
[ 1639.753955][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 1639.753962][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 1639.753967][ C2] ? nmi_handle+0x153/0x420
[ 1639.753973][ C2] ? default_do_nmi+0x41/0x100
[ 1639.753978][ C2] ? exc_nmi+0xf3/0x120
[ 1639.753981][ C2] ? end_repeat_nmi+0xf/0x60
[ 1639.753985][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1639.753990][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1639.753993][ C2] ? report_enabled+0x19/0x30
[ 1639.753997][ C2] ? report_enabled+0x19/0x30
[ 1639.754000][ C2] ? report_enabled+0x19/0x30
[ 1639.754003][ C2]
[ 1639.754004][ C2]
[ 1639.754004][ C2] kasan_report+0x41/0xf0
[ 1639.754008][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1639.754013][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 1639.754016][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1639.754020][ C2] ? __pfx___schedule+0x10/0x10
[ 1639.754025][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1639.754031][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1639.754034][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1639.754037][ C2] ? lock_acquire+0x1c1/0x220
[ 1639.754040][ C2] ? __mutex_lock+0x33e/0xb10
[ 1639.754043][ C2] ? __mutex_lock+0x811/0xb10
[ 1639.754046][ C2] _raw_spin_lock+0x67/0x80
[ 1639.754050][ C2] __mutex_lock+0x33e/0xb10
[ 1639.754053][ C2] ? __lock_release+0x40f/0x880
[ 1639.754056][ C2] ? __pfx___lock_release+0x10/0x10
[ 1639.754058][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1639.754064][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1639.754067][ C2] ? __pfx___up_read+0x10/0x10
[ 1639.754071][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1639.754074][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1639.754078][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1639.754085][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1639.754088][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1639.754093][ C2] __tcf_action_put+0x3d/0xf0
[ 1639.754097][ C2] tcf_action_destroy+0x43/0x130
[ 1639.754100][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1639.754104][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1639.754115][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1639.754123][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1639.754131][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1639.754140][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1639.754150][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1639.754157][ C2] ? __lock_release+0x40f/0x880
[ 1639.754161][ C2] ? __mutex_lock+0x26e/0xb10
[ 1639.754165][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1639.754174][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1639.754182][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1639.754186][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1639.754191][ C2] tcf_chain_flush+0x1e0/0x320
[ 1639.754195][ C2] __tcf_block_put+0x113/0x270
[ 1639.754199][ C2] tcf_block_put+0xaf/0xf0
[ 1639.754202][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1639.754206][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1639.754213][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1639.754219][ C2] __qdisc_destroy+0xee/0x340
[ 1639.754223][ C2] dev_shutdown+0x164/0x350
[ 1639.754226][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1639.754231][ C2] ? mutex_is_locked+0x17/0x50
[ 1639.754234][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1639.754237][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1639.754242][ C2] default_device_exit_batch+0x234/0x2d0
[ 1639.754245][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1639.754248][ C2] ? ops_exit_list+0xb4/0x170
[ 1639.754251][ C2] cleanup_net+0x4f3/0xb60
[ 1639.754254][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1639.754257][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1639.754260][ C2] ? lock_acquire+0x1c1/0x220
[ 1639.754262][ C2] ? process_one_work+0x714/0x1310
[ 1639.754267][ C2] process_one_work+0x78c/0x1310
[ 1639.754272][ C2] ? hlock_class+0x4e/0x130
[ 1639.754275][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1639.754280][ C2] ? assign_work+0x16c/0x240
[ 1639.754283][ C2] worker_thread+0x73d/0x1010
[ 1639.754288][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1639.754291][ C2] kthread+0x28f/0x360
[ 1639.754294][ C2] ? __pfx_kthread+0x10/0x10
[ 1639.754296][ C2] ret_from_fork+0x31/0x70
[ 1639.754299][ C2] ? __pfx_kthread+0x10/0x10
[ 1639.754301][ C2] ret_from_fork_asm+0x1b/0x30
[ 1639.754309][ C2]
[ 1640.434936][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 1640.435289][ C2] rcu: 2-....: (1506358 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=375685
[ 1640.435826][ C2] rcu: (t=1508682 jiffies g=119533 q=6114 ncpus=4)
[ 1640.436156][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1640.436622][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1640.437226][ C2] Workqueue: netns cleanup_net
[ 1640.437470][ C2] RIP: 0010:kasan_report+0x29/0xf0
[ 1640.437729][ C2] Code: 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca 65 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 <85> c0 0f 85 b7 00 00 00 48 89 fd 49 89 f6 89 d3 49 89 cd e8 0f f7
[ 1640.438684][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000282
[ 1640.438988][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1640.439383][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1640.439776][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1640.440169][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1640.440561][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: ffff888001c02640
[ 1640.440955][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1640.441395][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1640.441724][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1640.442119][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1640.442510][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1640.442912][ C2] PKRU: 55555554
[ 1640.443091][ C2] Call Trace:
[ 1640.443259][ C2]
[ 1640.443406][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 1640.443680][ C2] ? print_cpu_stall+0x263/0x6a0
[ 1640.443929][ C2] ? check_cpu_stall+0x284/0x500
[ 1640.444178][ C2] ? rcu_pending+0x92/0x360
[ 1640.444405][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 1640.444672][ C2] ? update_process_times+0xb9/0x110
[ 1640.444941][ C2] ? tick_sched_handle+0x67/0x130
[ 1640.445197][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 1640.445480][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1640.445721][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 1640.446031][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1640.446300][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1640.446588][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1640.446854][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1640.447157][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1640.447418][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1640.447726][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1640.448023][ C2]
[ 1640.448171][ C2]
[ 1640.448322][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1640.448636][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1640.448933][ C2] ? kasan_report+0x29/0xf0
[ 1640.449169][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 1640.449453][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1640.449765][ C2] ? __pfx___schedule+0x10/0x10
[ 1640.450015][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1640.450264][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1640.450534][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1640.450817][ C2] ? lock_acquire+0x1c1/0x220
[ 1640.451057][ C2] ? __mutex_lock+0x33e/0xb10
[ 1640.451298][ C2] ? __mutex_lock+0x811/0xb10
[ 1640.451536][ C2] _raw_spin_lock+0x67/0x80
[ 1640.451765][ C2] __mutex_lock+0x33e/0xb10
[ 1640.451996][ C2] ? __lock_release+0x40f/0x880
[ 1640.452244][ C2] ? __pfx___lock_release+0x10/0x10
[ 1640.452506][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1640.452802][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1640.453064][ C2] ? __pfx___up_read+0x10/0x10
[ 1640.453305][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1640.453577][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1640.453845][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1640.454133][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1640.454426][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1640.454709][ C2] __tcf_action_put+0x3d/0xf0
[ 1640.454949][ C2] tcf_action_destroy+0x43/0x130
[ 1640.455201][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1640.455438][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1640.455755][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1640.456028][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1640.456324][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1640.456620][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1640.456904][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1640.457217][ C2] ? __lock_release+0x40f/0x880
[ 1640.457463][ C2] ? __mutex_lock+0x26e/0xb10
[ 1640.457703][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1640.457982][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1640.458290][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1640.458592][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1640.458839][ C2] tcf_chain_flush+0x1e0/0x320
[ 1640.459084][ C2] __tcf_block_put+0x113/0x270
[ 1640.459331][ C2] tcf_block_put+0xaf/0xf0
[ 1640.459558][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1640.459816][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1640.460087][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1640.460360][ C2] __qdisc_destroy+0xee/0x340
[ 1640.460599][ C2] dev_shutdown+0x164/0x350
[ 1640.460828][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1640.461149][ C2] ? mutex_is_locked+0x17/0x50
[ 1640.461390][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1640.461729][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1640.462045][ C2] default_device_exit_batch+0x234/0x2d0
[ 1640.462328][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1640.462637][ C2] ? ops_exit_list+0xb4/0x170
[ 1640.462874][ C2] cleanup_net+0x4f3/0xb60
[ 1640.463107][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1640.463391][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1640.463641][ C2] ? lock_acquire+0x1c1/0x220
[ 1640.463876][ C2] ? process_one_work+0x714/0x1310
[ 1640.464135][ C2] process_one_work+0x78c/0x1310
[ 1640.464384][ C2] ? hlock_class+0x4e/0x130
[ 1640.464615][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1640.464886][ C2] ? assign_work+0x16c/0x240
[ 1640.465122][ C2] worker_thread+0x73d/0x1010
[ 1640.465362][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1640.465618][ C2] kthread+0x28f/0x360
[ 1640.465824][ C2] ? __pfx_kthread+0x10/0x10
[ 1640.466057][ C2] ret_from_fork+0x31/0x70
[ 1640.466279][ C2] ? __pfx_kthread+0x10/0x10
[ 1640.466512][ C2] ret_from_fork_asm+0x1b/0x30
[ 1640.466758][ C2]
[ 1664.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1431s! [kworker/u8:0:11]
[ 1664.564085][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1664.564504][ C2] irq event stamp: 753065
[ 1664.564720][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1664.565185][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1664.565661][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1664.566131][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1664.566597][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1664.567069][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1664.567682][ C2] Workqueue: netns cleanup_net
[ 1664.567929][ C2] RIP: 0010:kasan_report+0xd2/0xf0
[ 1664.568192][ C2] Code: 24 28 4c 89 6c 24 30 e8 7c f5 ff ff 48 8d 7c 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd ff ff ff 34 24 9d <48> 83 c4 70 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc
[ 1664.569159][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 1664.569473][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb35b0
[ 1664.569870][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1664.570270][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1664.570672][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000000
[ 1664.571072][ C2] R13: ffffffffaeeb35b0 R14: 0000000000000004 R15: ffff888001c02640
[ 1664.571476][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1664.571919][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1664.572251][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1664.572658][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1664.573064][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1664.573461][ C2] PKRU: 55555554
[ 1664.573640][ C2] Call Trace:
[ 1664.573812][ C2]
[ 1664.573960][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1664.574222][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1664.574471][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1664.574751][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1664.575027][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1664.575316][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1664.575585][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1664.575893][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1664.576157][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1664.576472][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1664.576769][ C2]
[ 1664.576923][ C2]
[ 1664.577074][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1664.577395][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1664.577684][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1664.577975][ C2] ? kasan_report+0xd2/0xf0
[ 1664.578210][ C2] kasan_check_range+0x39/0x1c0
[ 1664.578465][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 1664.578747][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1664.579060][ C2] ? __pfx___schedule+0x10/0x10
[ 1664.579308][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1664.579558][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1664.579829][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1664.580111][ C2] ? lock_acquire+0x1c1/0x220
[ 1664.580357][ C2] ? __mutex_lock+0x33e/0xb10
[ 1664.580594][ C2] ? __mutex_lock+0x811/0xb10
[ 1664.580829][ C2] _raw_spin_lock+0x67/0x80
[ 1664.581060][ C2] __mutex_lock+0x33e/0xb10
[ 1664.581290][ C2] ? __lock_release+0x40f/0x880
[ 1664.581539][ C2] ? __pfx___lock_release+0x10/0x10
[ 1664.581801][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1664.582105][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1664.582365][ C2] ? __pfx___up_read+0x10/0x10
[ 1664.582607][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1664.582882][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1664.583153][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1664.583451][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1664.583747][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1664.584033][ C2] __tcf_action_put+0x3d/0xf0
[ 1664.584276][ C2] tcf_action_destroy+0x43/0x130
[ 1664.584534][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1664.584773][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1664.585094][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1664.585378][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1664.585679][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1664.585975][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1664.586262][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1664.586578][ C2] ? __lock_release+0x40f/0x880
[ 1664.586827][ C2] ? __mutex_lock+0x26e/0xb10
[ 1664.587071][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1664.587360][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1664.587671][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1664.587977][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1664.588227][ C2] tcf_chain_flush+0x1e0/0x320
[ 1664.588478][ C2] __tcf_block_put+0x113/0x270
[ 1664.588724][ C2] tcf_block_put+0xaf/0xf0
[ 1664.588950][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1664.589210][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1664.589489][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1664.589766][ C2] __qdisc_destroy+0xee/0x340
[ 1664.590008][ C2] dev_shutdown+0x164/0x350
[ 1664.590240][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1664.590565][ C2] ? mutex_is_locked+0x17/0x50
[ 1664.590808][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1664.591146][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1664.591467][ C2] default_device_exit_batch+0x234/0x2d0
[ 1664.591752][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1664.592063][ C2] ? ops_exit_list+0xb4/0x170
[ 1664.592301][ C2] cleanup_net+0x4f3/0xb60
[ 1664.592532][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1664.592821][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1664.593074][ C2] ? lock_acquire+0x1c1/0x220
[ 1664.593313][ C2] ? process_one_work+0x714/0x1310
[ 1664.593577][ C2] process_one_work+0x78c/0x1310
[ 1664.593829][ C2] ? hlock_class+0x4e/0x130
[ 1664.594065][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1664.594345][ C2] ? assign_work+0x16c/0x240
[ 1664.594580][ C2] worker_thread+0x73d/0x1010
[ 1664.594822][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1664.595082][ C2] kthread+0x28f/0x360
[ 1664.595292][ C2] ? __pfx_kthread+0x10/0x10
[ 1664.595529][ C2] ret_from_fork+0x31/0x70
[ 1664.595758][ C2] ? __pfx_kthread+0x10/0x10
[ 1664.595993][ C2] ret_from_fork_asm+0x1b/0x30
[ 1664.596238][ C2]
[ 1692.563631][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1457s! [kworker/u8:0:11]
[ 1692.564089][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1692.564499][ C2] irq event stamp: 753065
[ 1692.564716][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1692.565182][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1692.565646][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1692.566109][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1692.566566][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1692.567032][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1692.567638][ C2] Workqueue: netns cleanup_net
[ 1692.567878][ C2] RIP: 0010:report_enabled+0x19/0x30
[ 1692.568149][ C2] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 05 b9 a9 a4 05 48 d1 e8 83 e0 01 75 0d f0 48 0f ba 2d a7 a9 a4 05 00 <0f> 93 c0 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40
[ 1692.569110][ C2] RSP: 0018:ffffc900000bf1e0 EFLAGS: 00000247
[ 1692.569412][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb35b0
[ 1692.569806][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1692.570200][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1692.570592][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1692.570987][ C2] R13: ffffffffaeeb35b0 R14: 0000000000000004 R15: ffff888001c02640
[ 1692.571381][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1692.571821][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1692.572149][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1692.572542][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1692.572948][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1692.573343][ C2] PKRU: 55555554
[ 1692.573523][ C2] Call Trace:
[ 1692.573691][ C2]
[ 1692.573840][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1692.574100][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1692.574343][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1692.574617][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1692.574886][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1692.575173][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1692.575435][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1692.575738][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1692.575998][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1692.576302][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1692.576595][ C2]
[ 1692.576744][ C2]
[ 1692.576894][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1692.577206][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1692.577491][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1692.577779][ C2] ? report_enabled+0x19/0x30
[ 1692.578017][ C2] kasan_report+0x41/0xf0
[ 1692.578238][ C2] kasan_check_range+0x39/0x1c0
[ 1692.578486][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 1692.578762][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1692.579073][ C2] ? __pfx___schedule+0x10/0x10
[ 1692.579321][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1692.579569][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1692.579838][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1692.580120][ C2] ? lock_acquire+0x1c1/0x220
[ 1692.580356][ C2] ? __mutex_lock+0x33e/0xb10
[ 1692.580614][ C2] ? __mutex_lock+0x811/0xb10
[ 1692.580852][ C2] _raw_spin_lock+0x67/0x80
[ 1692.581080][ C2] __mutex_lock+0x33e/0xb10
[ 1692.581310][ C2] ? __lock_release+0x40f/0x880
[ 1692.581555][ C2] ? __pfx___lock_release+0x10/0x10
[ 1692.581815][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1692.582117][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1692.582371][ C2] ? __pfx___up_read+0x10/0x10
[ 1692.582609][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1692.582882][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1692.583149][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1692.583435][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1692.583728][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1692.584010][ C2] __tcf_action_put+0x3d/0xf0
[ 1692.584251][ C2] tcf_action_destroy+0x43/0x130
[ 1692.584502][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1692.584739][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1692.585058][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1692.585329][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1692.585627][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1692.585921][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1692.586205][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1692.586514][ C2] ? __lock_release+0x40f/0x880
[ 1692.586760][ C2] ? __mutex_lock+0x26e/0xb10
[ 1692.587001][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1692.587281][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1692.587588][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1692.587895][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1692.588145][ C2] tcf_chain_flush+0x1e0/0x320
[ 1692.588389][ C2] __tcf_block_put+0x113/0x270
[ 1692.588635][ C2] tcf_block_put+0xaf/0xf0
[ 1692.588863][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1692.589125][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1692.589398][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1692.589673][ C2] __qdisc_destroy+0xee/0x340
[ 1692.589914][ C2] dev_shutdown+0x164/0x350
[ 1692.590147][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1692.590470][ C2] ? mutex_is_locked+0x17/0x50
[ 1692.590713][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1692.591057][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1692.591375][ C2] default_device_exit_batch+0x234/0x2d0
[ 1692.591659][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1692.591972][ C2] ? ops_exit_list+0xb4/0x170
[ 1692.592212][ C2] cleanup_net+0x4f3/0xb60
[ 1692.592438][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1692.592733][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1692.592987][ C2] ? lock_acquire+0x1c1/0x220
[ 1692.593224][ C2] ? process_one_work+0x714/0x1310
[ 1692.593486][ C2] process_one_work+0x78c/0x1310
[ 1692.593741][ C2] ? hlock_class+0x4e/0x130
[ 1692.593975][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1692.594248][ C2] ? assign_work+0x16c/0x240
[ 1692.594485][ C2] worker_thread+0x73d/0x1010
[ 1692.594727][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1692.594990][ C2] kthread+0x28f/0x360
[ 1692.595199][ C2] ? __pfx_kthread+0x10/0x10
[ 1692.595435][ C2] ret_from_fork+0x31/0x70
[ 1692.595661][ C2] ? __pfx_kthread+0x10/0x10
[ 1692.595896][ C2] ret_from_fork_asm+0x1b/0x30
[ 1692.596148][ C2]
[ 1718.467937][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 1718.468310][ C2] rcu: 2-....: (1584297 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=394986
[ 1718.468848][ C2] rcu: (t=1586715 jiffies g=119533 q=6114 ncpus=4)
[ 1718.469178][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1718.469645][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1718.470247][ C2] Workqueue: netns cleanup_net
[ 1718.470494][ C2] RIP: 0010:kasan_report+0x19/0xf0
[ 1718.470753][ C2] Code: 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca <65> 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 85 c0 0f 85 b7 00
[ 1718.471710][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000282
[ 1718.472015][ C2] RAX: 00000000000000fb RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1718.472409][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1718.472812][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1718.473207][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1718.473599][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1718.473994][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1718.474434][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1718.474764][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1718.475160][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1718.475552][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1718.475947][ C2] PKRU: 55555554
[ 1718.476124][ C2] Call Trace:
[ 1718.476294][ C2]
[ 1718.476439][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 1718.476711][ C2] ? print_cpu_stall+0x263/0x6a0
[ 1718.476960][ C2] ? check_cpu_stall+0x284/0x500
[ 1718.477208][ C2] ? rcu_pending+0x92/0x360
[ 1718.477435][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 1718.477703][ C2] ? update_process_times+0xb9/0x110
[ 1718.477971][ C2] ? tick_sched_handle+0x67/0x130
[ 1718.478224][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 1718.478506][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1718.478747][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 1718.479056][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1718.479326][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1718.479608][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1718.479871][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1718.480173][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1718.480434][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1718.480744][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1718.481041][ C2]
[ 1718.481190][ C2]
[ 1718.481342][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1718.481655][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1718.481951][ C2] ? kasan_report+0x19/0xf0
[ 1718.482184][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1718.482478][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 1718.482770][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1718.483084][ C2] ? __pfx___schedule+0x10/0x10
[ 1718.483330][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1718.483581][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1718.483853][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1718.484138][ C2] ? lock_acquire+0x1c1/0x220
[ 1718.484377][ C2] ? __mutex_lock+0x33e/0xb10
[ 1718.484616][ C2] ? __mutex_lock+0x811/0xb10
[ 1718.484853][ C2] _raw_spin_lock+0x67/0x80
[ 1718.485085][ C2] __mutex_lock+0x33e/0xb10
[ 1718.485316][ C2] ? __lock_release+0x40f/0x880
[ 1718.485562][ C2] ? __pfx___lock_release+0x10/0x10
[ 1718.485825][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1718.486121][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1718.486376][ C2] ? __pfx___up_read+0x10/0x10
[ 1718.486619][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1718.486887][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1718.487155][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1718.487448][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1718.487738][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1718.488022][ C2] __tcf_action_put+0x3d/0xf0
[ 1718.488261][ C2] tcf_action_destroy+0x43/0x130
[ 1718.488510][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1718.488747][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1718.489068][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1718.489342][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1718.489642][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1718.489937][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1718.490224][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1718.490536][ C2] ? __lock_release+0x40f/0x880
[ 1718.490782][ C2] ? __mutex_lock+0x26e/0xb10
[ 1718.491021][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1718.491304][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1718.491610][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1718.491915][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1718.492162][ C2] tcf_chain_flush+0x1e0/0x320
[ 1718.492408][ C2] __tcf_block_put+0x113/0x270
[ 1718.492659][ C2] tcf_block_put+0xaf/0xf0
[ 1718.492885][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1718.493147][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1718.493422][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1718.493701][ C2] __qdisc_destroy+0xee/0x340
[ 1718.493940][ C2] dev_shutdown+0x164/0x350
[ 1718.494172][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1718.494492][ C2] ? mutex_is_locked+0x17/0x50
[ 1718.494733][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1718.495072][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1718.495386][ C2] default_device_exit_batch+0x234/0x2d0
[ 1718.495669][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1718.495977][ C2] ? ops_exit_list+0xb4/0x170
[ 1718.496216][ C2] cleanup_net+0x4f3/0xb60
[ 1718.496441][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1718.496721][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1718.496971][ C2] ? lock_acquire+0x1c1/0x220
[ 1718.497209][ C2] ? process_one_work+0x714/0x1310
[ 1718.497468][ C2] process_one_work+0x78c/0x1310
[ 1718.497722][ C2] ? hlock_class+0x4e/0x130
[ 1718.497959][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1718.498236][ C2] ? assign_work+0x16c/0x240
[ 1718.498470][ C2] worker_thread+0x73d/0x1010
[ 1718.498714][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1718.498974][ C2] kthread+0x28f/0x360
[ 1718.499183][ C2] ? __pfx_kthread+0x10/0x10
[ 1718.499418][ C2] ret_from_fork+0x31/0x70
[ 1718.499645][ C2] ? __pfx_kthread+0x10/0x10
[ 1718.499879][ C2] ret_from_fork_asm+0x1b/0x30
[ 1718.500128][ C2]
[ 1738.055968][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 1605997 jiffies s: 4309 root: 0x4/.
[ 1738.056639][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 1738.057002][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 1738.057276][ C2] NMI backtrace for cpu 2
[ 1738.057282][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1738.057286][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1738.057289][ C2] Workqueue: netns cleanup_net
[ 1738.057296][ C2] RIP: 0010:kasan_report+0xd2/0xf0
[ 1738.057303][ C2] Code: 24 28 4c 89 6c 24 30 e8 7c f5 ff ff 48 8d 7c 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd ff ff ff 34 24 9d <48> 83 c4 70 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc
[ 1738.057306][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 1738.057308][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb35b0
[ 1738.057310][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1738.057311][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1738.057313][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000000
[ 1738.057315][ C2] R13: ffffffffaeeb35b0 R14: 0000000000000004 R15: ffff888001c02640
[ 1738.057317][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1738.057319][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1738.057322][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1738.057324][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1738.057326][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1738.057327][ C2] PKRU: 55555554
[ 1738.057328][ C2] Call Trace:
[ 1738.057331][ C2]
[ 1738.057335][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 1738.057340][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 1738.057345][ C2] ? nmi_handle+0x153/0x420
[ 1738.057349][ C2] ? default_do_nmi+0x41/0x100
[ 1738.057354][ C2] ? exc_nmi+0xf3/0x120
[ 1738.057356][ C2] ? end_repeat_nmi+0xf/0x60
[ 1738.057359][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1738.057365][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1738.057368][ C2] ? kasan_report+0xd2/0xf0
[ 1738.057371][ C2] ? kasan_report+0xd2/0xf0
[ 1738.057374][ C2] ? kasan_report+0xd2/0xf0
[ 1738.057377][ C2]
[ 1738.057378][ C2]
[ 1738.057381][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1738.057385][ C2] kasan_check_range+0x39/0x1c0
[ 1738.057390][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 1738.057393][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1738.057398][ C2] ? __pfx___schedule+0x10/0x10
[ 1738.057403][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1738.057408][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1738.057411][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1738.057414][ C2] ? lock_acquire+0x1c1/0x220
[ 1738.057417][ C2] ? __mutex_lock+0x33e/0xb10
[ 1738.057421][ C2] ? __mutex_lock+0x811/0xb10
[ 1738.057424][ C2] _raw_spin_lock+0x67/0x80
[ 1738.057427][ C2] __mutex_lock+0x33e/0xb10
[ 1738.057430][ C2] ? __lock_release+0x40f/0x880
[ 1738.057433][ C2] ? __pfx___lock_release+0x10/0x10
[ 1738.057436][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1738.057441][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1738.057444][ C2] ? __pfx___up_read+0x10/0x10
[ 1738.057448][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1738.057451][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1738.057456][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1738.057462][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1738.057465][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1738.057469][ C2] __tcf_action_put+0x3d/0xf0
[ 1738.057473][ C2] tcf_action_destroy+0x43/0x130
[ 1738.057477][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1738.057480][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1738.057491][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1738.057500][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1738.057508][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1738.057517][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1738.057527][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1738.057534][ C2] ? __lock_release+0x40f/0x880
[ 1738.057537][ C2] ? __mutex_lock+0x26e/0xb10
[ 1738.057542][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1738.057551][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1738.057559][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1738.057563][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1738.057567][ C2] tcf_chain_flush+0x1e0/0x320
[ 1738.057571][ C2] __tcf_block_put+0x113/0x270
[ 1738.057575][ C2] tcf_block_put+0xaf/0xf0
[ 1738.057578][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1738.057582][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1738.057589][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1738.057595][ C2] __qdisc_destroy+0xee/0x340
[ 1738.057599][ C2] dev_shutdown+0x164/0x350
[ 1738.057602][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1738.057608][ C2] ? mutex_is_locked+0x17/0x50
[ 1738.057611][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1738.057613][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1738.057618][ C2] default_device_exit_batch+0x234/0x2d0
[ 1738.057621][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1738.057624][ C2] ? ops_exit_list+0xb4/0x170
[ 1738.057628][ C2] cleanup_net+0x4f3/0xb60
[ 1738.057631][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1738.057634][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1738.057637][ C2] ? lock_acquire+0x1c1/0x220
[ 1738.057639][ C2] ? process_one_work+0x714/0x1310
[ 1738.057644][ C2] process_one_work+0x78c/0x1310
[ 1738.057649][ C2] ? hlock_class+0x4e/0x130
[ 1738.057652][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1738.057656][ C2] ? assign_work+0x16c/0x240
[ 1738.057660][ C2] worker_thread+0x73d/0x1010
[ 1738.057665][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1738.057667][ C2] kthread+0x28f/0x360
[ 1738.057671][ C2] ? __pfx_kthread+0x10/0x10
[ 1738.057673][ C2] ret_from_fork+0x31/0x70
[ 1738.057676][ C2] ? __pfx_kthread+0x10/0x10
[ 1738.057678][ C2] ret_from_fork_asm+0x1b/0x30
[ 1738.057686][ C2]
[ 1764.563631][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1524s! [kworker/u8:0:11]
[ 1764.564085][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1764.564500][ C2] irq event stamp: 753065
[ 1764.564715][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1764.565189][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1764.565659][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1764.566124][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1764.566581][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1764.567051][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1764.567656][ C2] Workqueue: netns cleanup_net
[ 1764.567900][ C2] RIP: 0010:kasan_report+0x19/0xf0
[ 1764.568162][ C2] Code: 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca <65> 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 85 c0 0f 85 b7 00
[ 1764.569122][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000282
[ 1764.569431][ C2] RAX: 00000000000000fb RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1764.569825][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1764.570222][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1764.570616][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1764.571012][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1764.571405][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1764.571847][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1764.572177][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1764.572580][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1764.572976][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1764.573372][ C2] PKRU: 55555554
[ 1764.573555][ C2] Call Trace:
[ 1764.573726][ C2]
[ 1764.573874][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1764.574139][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1764.574383][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1764.574663][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1764.574937][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1764.575224][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1764.575489][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1764.575797][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1764.576059][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1764.576369][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1764.576664][ C2]
[ 1764.576813][ C2]
[ 1764.576963][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1764.577280][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1764.577574][ C2] ? kasan_report+0x19/0xf0
[ 1764.577803][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 1764.578090][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1764.578402][ C2] ? __pfx___schedule+0x10/0x10
[ 1764.578652][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1764.578904][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1764.579178][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1764.579461][ C2] ? lock_acquire+0x1c1/0x220
[ 1764.579700][ C2] ? __mutex_lock+0x33e/0xb10
[ 1764.579942][ C2] ? __mutex_lock+0x811/0xb10
[ 1764.580179][ C2] _raw_spin_lock+0x67/0x80
[ 1764.580412][ C2] __mutex_lock+0x33e/0xb10
[ 1764.580645][ C2] ? __lock_release+0x40f/0x880
[ 1764.580892][ C2] ? __pfx___lock_release+0x10/0x10
[ 1764.581157][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1764.581454][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1764.581709][ C2] ? __pfx___up_read+0x10/0x10
[ 1764.581954][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1764.582222][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1764.582499][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1764.582791][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1764.583091][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1764.583377][ C2] __tcf_action_put+0x3d/0xf0
[ 1764.583619][ C2] tcf_action_destroy+0x43/0x130
[ 1764.583869][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1764.584112][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1764.584429][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1764.584701][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1764.585000][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1764.585294][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1764.585578][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1764.585888][ C2] ? __lock_release+0x40f/0x880
[ 1764.586136][ C2] ? __mutex_lock+0x26e/0xb10
[ 1764.586374][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1764.586656][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1764.586963][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1764.587264][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1764.587513][ C2] tcf_chain_flush+0x1e0/0x320
[ 1764.587757][ C2] __tcf_block_put+0x113/0x270
[ 1764.588005][ C2] tcf_block_put+0xaf/0xf0
[ 1764.588230][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1764.588490][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1764.588765][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1764.589042][ C2] __qdisc_destroy+0xee/0x340
[ 1764.589283][ C2] dev_shutdown+0x164/0x350
[ 1764.589513][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1764.589836][ C2] ? mutex_is_locked+0x17/0x50
[ 1764.590082][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1764.590419][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1764.590736][ C2] default_device_exit_batch+0x234/0x2d0
[ 1764.591024][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1764.591335][ C2] ? ops_exit_list+0xb4/0x170
[ 1764.591573][ C2] cleanup_net+0x4f3/0xb60
[ 1764.591802][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1764.592086][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1764.592345][ C2] ? lock_acquire+0x1c1/0x220
[ 1764.592583][ C2] ? process_one_work+0x714/0x1310
[ 1764.592844][ C2] process_one_work+0x78c/0x1310
[ 1764.593098][ C2] ? hlock_class+0x4e/0x130
[ 1764.593333][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1764.593605][ C2] ? assign_work+0x16c/0x240
[ 1764.593842][ C2] worker_thread+0x73d/0x1010
[ 1764.594086][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1764.594345][ C2] kthread+0x28f/0x360
[ 1764.594555][ C2] ? __pfx_kthread+0x10/0x10
[ 1764.594787][ C2] ret_from_fork+0x31/0x70
[ 1764.595016][ C2] ? __pfx_kthread+0x10/0x10
[ 1764.595251][ C2] ret_from_fork_asm+0x1b/0x30
[ 1764.595496][ C2]
[ 1792.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1550s! [kworker/u8:0:11]
[ 1792.564082][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1792.564493][ C2] irq event stamp: 753065
[ 1792.564712][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1792.565181][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1792.565646][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1792.566112][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1792.566572][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1792.567039][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1792.567645][ C2] Workqueue: netns cleanup_net
[ 1792.567889][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 1792.568213][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 1792.569176][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 1792.569479][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1792.569874][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1792.570269][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1792.570664][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1792.571060][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1792.571456][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1792.571899][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1792.572232][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1792.572628][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1792.573026][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1792.573422][ C2] PKRU: 55555554
[ 1792.573602][ C2] Call Trace:
[ 1792.573770][ C2]
[ 1792.573920][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1792.574184][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1792.574427][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1792.574702][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1792.574972][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1792.575258][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1792.575523][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1792.575826][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1792.576088][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1792.576393][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1792.576687][ C2]
[ 1792.576834][ C2]
[ 1792.576986][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1792.577300][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1792.577591][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1792.577885][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1792.578196][ C2] ? __pfx___schedule+0x10/0x10
[ 1792.578444][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1792.578692][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1792.578963][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1792.579244][ C2] ? lock_acquire+0x1c1/0x220
[ 1792.579482][ C2] ? __mutex_lock+0x33e/0xb10
[ 1792.579721][ C2] ? __mutex_lock+0x811/0xb10
[ 1792.579958][ C2] _raw_spin_lock+0x67/0x80
[ 1792.580187][ C2] __mutex_lock+0x33e/0xb10
[ 1792.580418][ C2] ? __lock_release+0x40f/0x880
[ 1792.580663][ C2] ? __pfx___lock_release+0x10/0x10
[ 1792.580924][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1792.581219][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1792.581473][ C2] ? __pfx___up_read+0x10/0x10
[ 1792.581716][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1792.581983][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1792.582262][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1792.582552][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1792.582851][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1792.583135][ C2] __tcf_action_put+0x3d/0xf0
[ 1792.583374][ C2] tcf_action_destroy+0x43/0x130
[ 1792.583625][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1792.583863][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1792.584183][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1792.584458][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1792.584755][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1792.585051][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1792.585335][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1792.585646][ C2] ? __lock_release+0x40f/0x880
[ 1792.585892][ C2] ? __mutex_lock+0x26e/0xb10
[ 1792.586132][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1792.586413][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1792.586720][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1792.587023][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1792.587272][ C2] tcf_chain_flush+0x1e0/0x320
[ 1792.587514][ C2] __tcf_block_put+0x113/0x270
[ 1792.587758][ C2] tcf_block_put+0xaf/0xf0
[ 1792.587984][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1792.588246][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1792.588517][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1792.588792][ C2] __qdisc_destroy+0xee/0x340
[ 1792.589032][ C2] dev_shutdown+0x164/0x350
[ 1792.589263][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1792.589585][ C2] ? mutex_is_locked+0x17/0x50
[ 1792.589827][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1792.590165][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1792.590480][ C2] default_device_exit_batch+0x234/0x2d0
[ 1792.590764][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1792.591075][ C2] ? ops_exit_list+0xb4/0x170
[ 1792.591311][ C2] cleanup_net+0x4f3/0xb60
[ 1792.591538][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1792.591819][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1792.592071][ C2] ? lock_acquire+0x1c1/0x220
[ 1792.592314][ C2] ? process_one_work+0x714/0x1310
[ 1792.592574][ C2] process_one_work+0x78c/0x1310
[ 1792.592825][ C2] ? hlock_class+0x4e/0x130
[ 1792.593057][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1792.593329][ C2] ? assign_work+0x16c/0x240
[ 1792.593565][ C2] worker_thread+0x73d/0x1010
[ 1792.593803][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1792.594064][ C2] kthread+0x28f/0x360
[ 1792.594273][ C2] ? __pfx_kthread+0x10/0x10
[ 1792.594504][ C2] ret_from_fork+0x31/0x70
[ 1792.594732][ C2] ? __pfx_kthread+0x10/0x10
[ 1792.594967][ C2] ret_from_fork_asm+0x1b/0x30
[ 1792.595215][ C2]
[ 1796.500937][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 1796.501298][ C2] rcu: 2-....: (1662210 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=414367
[ 1796.501837][ C2] rcu: (t=1664748 jiffies g=119533 q=6114 ncpus=4)
[ 1796.502180][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1796.502648][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1796.503252][ C2] Workqueue: netns cleanup_net
[ 1796.503500][ C2] RIP: 0010:kasan_report+0x29/0xf0
[ 1796.503761][ C2] Code: 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca 65 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 <85> c0 0f 85 b7 00 00 00 48 89 fd 49 89 f6 89 d3 49 89 cd e8 0f f7
[ 1796.504719][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000282
[ 1796.505024][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1796.505418][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1796.505815][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1796.506212][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1796.506608][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: ffff888001c02640
[ 1796.507007][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1796.507453][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1796.507783][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1796.508180][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1796.508576][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1796.508974][ C2] PKRU: 55555554
[ 1796.509154][ C2] Call Trace:
[ 1796.509325][ C2]
[ 1796.509472][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 1796.509750][ C2] ? print_cpu_stall+0x263/0x6a0
[ 1796.510001][ C2] ? check_cpu_stall+0x284/0x500
[ 1796.510252][ C2] ? rcu_pending+0x92/0x360
[ 1796.510481][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 1796.510750][ C2] ? update_process_times+0xb9/0x110
[ 1796.511019][ C2] ? tick_sched_handle+0x67/0x130
[ 1796.511274][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 1796.511560][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1796.511801][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 1796.512121][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1796.512392][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1796.512678][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1796.512942][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1796.513251][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1796.513511][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1796.513820][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1796.514117][ C2]
[ 1796.514265][ C2]
[ 1796.514414][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1796.514726][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1796.515023][ C2] ? kasan_report+0x29/0xf0
[ 1796.515257][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 1796.515540][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1796.515850][ C2] ? __pfx___schedule+0x10/0x10
[ 1796.516099][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1796.516348][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1796.516619][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1796.516900][ C2] ? lock_acquire+0x1c1/0x220
[ 1796.517137][ C2] ? __mutex_lock+0x33e/0xb10
[ 1796.517377][ C2] ? __mutex_lock+0x811/0xb10
[ 1796.517615][ C2] _raw_spin_lock+0x67/0x80
[ 1796.517845][ C2] __mutex_lock+0x33e/0xb10
[ 1796.518076][ C2] ? __lock_release+0x40f/0x880
[ 1796.518326][ C2] ? __pfx___lock_release+0x10/0x10
[ 1796.518595][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1796.518892][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1796.519147][ C2] ? __pfx___up_read+0x10/0x10
[ 1796.519389][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1796.519655][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1796.519924][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1796.520213][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1796.520509][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1796.520791][ C2] __tcf_action_put+0x3d/0xf0
[ 1796.521032][ C2] tcf_action_destroy+0x43/0x130
[ 1796.521283][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1796.521520][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1796.521841][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1796.522124][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1796.522420][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1796.522716][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1796.523000][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1796.523310][ C2] ? __lock_release+0x40f/0x880
[ 1796.523558][ C2] ? __mutex_lock+0x26e/0xb10
[ 1796.523799][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1796.524079][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1796.524387][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1796.524689][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1796.524935][ C2] tcf_chain_flush+0x1e0/0x320
[ 1796.525178][ C2] __tcf_block_put+0x113/0x270
[ 1796.525422][ C2] tcf_block_put+0xaf/0xf0
[ 1796.525648][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1796.525908][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1796.526180][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1796.526454][ C2] __qdisc_destroy+0xee/0x340
[ 1796.526694][ C2] dev_shutdown+0x164/0x350
[ 1796.526922][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1796.527243][ C2] ? mutex_is_locked+0x17/0x50
[ 1796.527485][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1796.527823][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1796.528138][ C2] default_device_exit_batch+0x234/0x2d0
[ 1796.528421][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1796.528732][ C2] ? ops_exit_list+0xb4/0x170
[ 1796.528970][ C2] cleanup_net+0x4f3/0xb60
[ 1796.529196][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1796.529479][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1796.529728][ C2] ? lock_acquire+0x1c1/0x220
[ 1796.529966][ C2] ? process_one_work+0x714/0x1310
[ 1796.530225][ C2] process_one_work+0x78c/0x1310
[ 1796.530476][ C2] ? hlock_class+0x4e/0x130
[ 1796.530707][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1796.530977][ C2] ? assign_work+0x16c/0x240
[ 1796.531212][ C2] worker_thread+0x73d/0x1010
[ 1796.531451][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1796.531709][ C2] kthread+0x28f/0x360
[ 1796.531916][ C2] ? __pfx_kthread+0x10/0x10
[ 1796.532160][ C2] ret_from_fork+0x31/0x70
[ 1796.532386][ C2] ? __pfx_kthread+0x10/0x10
[ 1796.532619][ C2] ret_from_fork_asm+0x1b/0x30
[ 1796.532867][ C2]
[ 1820.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1576s! [kworker/u8:0:11]
[ 1820.564082][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1820.564498][ C2] irq event stamp: 753065
[ 1820.564714][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1820.565187][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1820.565654][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1820.566119][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1820.566578][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1820.567052][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1820.567660][ C2] Workqueue: netns cleanup_net
[ 1820.567904][ C2] RIP: 0010:kasan_check_range+0x69/0x1c0
[ 1820.568194][ C2] Code: 5c c3 cc cc cc cc 48 b8 ff ff ff ff ff 7f ff ff 48 39 c7 76 dd 4c 8d 54 37 ff 48 89 fd 48 b8 00 00 00 00 00 fc ff df 4d 89 d1 <48> c1 ed 03 49 c1 e9 03 48 01 c5 49 01 c1 48 89 e8 49 8d 59 01 48
[ 1820.569158][ C2] RSP: 0018:ffffc900000bf290 EFLAGS: 00000216
[ 1820.569461][ C2] RAX: dffffc0000000000 RBX: 000000000000000b RCX: ffffffffaeeb35b0
[ 1820.569861][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1820.570262][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffff8880380fd00b
[ 1820.570661][ C2] R10: ffff8880380fd00b R11: 205d313154202020 R12: 0000000000000003
[ 1820.571058][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1820.571457][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1820.571901][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1820.572242][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1820.572641][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1820.573039][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1820.573437][ C2] PKRU: 55555554
[ 1820.573618][ C2] Call Trace:
[ 1820.573786][ C2]
[ 1820.573936][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1820.574200][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1820.574443][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1820.574721][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1820.574993][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1820.575281][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1820.575547][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1820.575850][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1820.576115][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1820.576423][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1820.576720][ C2]
[ 1820.576868][ C2]
[ 1820.577021][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1820.577336][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1820.577624][ C2] ? kasan_check_range+0x69/0x1c0
[ 1820.577880][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 1820.578162][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1820.578473][ C2] ? __pfx___schedule+0x10/0x10
[ 1820.578722][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1820.578973][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1820.579244][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1820.579529][ C2] ? lock_acquire+0x1c1/0x220
[ 1820.579767][ C2] ? __mutex_lock+0x33e/0xb10
[ 1820.580007][ C2] ? __mutex_lock+0x811/0xb10
[ 1820.580246][ C2] _raw_spin_lock+0x67/0x80
[ 1820.580477][ C2] __mutex_lock+0x33e/0xb10
[ 1820.580707][ C2] ? __lock_release+0x40f/0x880
[ 1820.580955][ C2] ? __pfx___lock_release+0x10/0x10
[ 1820.581218][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1820.581516][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1820.581772][ C2] ? __pfx___up_read+0x10/0x10
[ 1820.582028][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1820.582296][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1820.582567][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1820.582857][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1820.583151][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1820.583435][ C2] __tcf_action_put+0x3d/0xf0
[ 1820.583675][ C2] tcf_action_destroy+0x43/0x130
[ 1820.583925][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1820.584166][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1820.584485][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1820.584758][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1820.585058][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1820.585351][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1820.585639][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1820.585949][ C2] ? __lock_release+0x40f/0x880
[ 1820.586198][ C2] ? __mutex_lock+0x26e/0xb10
[ 1820.586439][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1820.586721][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1820.587029][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1820.587335][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1820.587584][ C2] tcf_chain_flush+0x1e0/0x320
[ 1820.587827][ C2] __tcf_block_put+0x113/0x270
[ 1820.588071][ C2] tcf_block_put+0xaf/0xf0
[ 1820.588299][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1820.588560][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1820.588833][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1820.589107][ C2] __qdisc_destroy+0xee/0x340
[ 1820.589349][ C2] dev_shutdown+0x164/0x350
[ 1820.589582][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1820.589905][ C2] ? mutex_is_locked+0x17/0x50
[ 1820.590150][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1820.590490][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1820.590808][ C2] default_device_exit_batch+0x234/0x2d0
[ 1820.591091][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1820.591403][ C2] ? ops_exit_list+0xb4/0x170
[ 1820.591643][ C2] cleanup_net+0x4f3/0xb60
[ 1820.591868][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1820.592167][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1820.592420][ C2] ? lock_acquire+0x1c1/0x220
[ 1820.592660][ C2] ? process_one_work+0x714/0x1310
[ 1820.592923][ C2] process_one_work+0x78c/0x1310
[ 1820.593177][ C2] ? hlock_class+0x4e/0x130
[ 1820.593409][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1820.593684][ C2] ? assign_work+0x16c/0x240
[ 1820.593920][ C2] worker_thread+0x73d/0x1010
[ 1820.594163][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1820.594424][ C2] kthread+0x28f/0x360
[ 1820.594633][ C2] ? __pfx_kthread+0x10/0x10
[ 1820.594868][ C2] ret_from_fork+0x31/0x70
[ 1820.595094][ C2] ? __pfx_kthread+0x10/0x10
[ 1820.595328][ C2] ret_from_fork_asm+0x1b/0x30
[ 1820.595579][ C2]
[ 1836.359975][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 1704301 jiffies s: 4309 root: 0x4/.
[ 1836.360896][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 1836.361437][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 1836.361853][ C2] NMI backtrace for cpu 2
[ 1836.361868][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1836.361874][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1836.361877][ C2] Workqueue: netns cleanup_net
[ 1836.361888][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 1836.361897][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 1836.361900][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 1836.361903][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1836.361905][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1836.361907][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1836.361908][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1836.361911][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1836.361913][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1836.361915][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1836.361918][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1836.361920][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1836.361922][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1836.361923][ C2] PKRU: 55555554
[ 1836.361924][ C2] Call Trace:
[ 1836.361928][ C2]
[ 1836.361932][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 1836.361940][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 1836.361945][ C2] ? nmi_handle+0x153/0x420
[ 1836.361951][ C2] ? default_do_nmi+0x41/0x100
[ 1836.361957][ C2] ? exc_nmi+0xf3/0x120
[ 1836.361959][ C2] ? end_repeat_nmi+0xf/0x60
[ 1836.361964][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1836.361968][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1836.361971][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1836.361975][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1836.361978][ C2]
[ 1836.361979][ C2]
[ 1836.361981][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1836.361985][ C2] ? __pfx___schedule+0x10/0x10
[ 1836.361991][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1836.361999][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1836.362002][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1836.362005][ C2] ? lock_acquire+0x1c1/0x220
[ 1836.362008][ C2] ? __mutex_lock+0x33e/0xb10
[ 1836.362012][ C2] ? __mutex_lock+0x811/0xb10
[ 1836.362015][ C2] _raw_spin_lock+0x67/0x80
[ 1836.362018][ C2] __mutex_lock+0x33e/0xb10
[ 1836.362021][ C2] ? __lock_release+0x40f/0x880
[ 1836.362025][ C2] ? __pfx___lock_release+0x10/0x10
[ 1836.362027][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1836.362034][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1836.362038][ C2] ? __pfx___up_read+0x10/0x10
[ 1836.362042][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1836.362046][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1836.362052][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1836.362060][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1836.362063][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1836.362067][ C2] __tcf_action_put+0x3d/0xf0
[ 1836.362072][ C2] tcf_action_destroy+0x43/0x130
[ 1836.362076][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1836.362080][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1836.362092][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1836.362101][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1836.362110][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1836.362119][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1836.362128][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1836.362136][ C2] ? __lock_release+0x40f/0x880
[ 1836.362140][ C2] ? __mutex_lock+0x26e/0xb10
[ 1836.362144][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1836.362154][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1836.362162][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1836.362167][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1836.362171][ C2] tcf_chain_flush+0x1e0/0x320
[ 1836.362175][ C2] __tcf_block_put+0x113/0x270
[ 1836.362180][ C2] tcf_block_put+0xaf/0xf0
[ 1836.362183][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1836.362187][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1836.362194][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1836.362201][ C2] __qdisc_destroy+0xee/0x340
[ 1836.362206][ C2] dev_shutdown+0x164/0x350
[ 1836.362210][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1836.362216][ C2] ? mutex_is_locked+0x17/0x50
[ 1836.362219][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1836.362222][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1836.362226][ C2] default_device_exit_batch+0x234/0x2d0
[ 1836.362229][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1836.362233][ C2] ? ops_exit_list+0xb4/0x170
[ 1836.362236][ C2] cleanup_net+0x4f3/0xb60
[ 1836.362240][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1836.362242][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1836.362246][ C2] ? lock_acquire+0x1c1/0x220
[ 1836.362248][ C2] ? process_one_work+0x714/0x1310
[ 1836.362254][ C2] process_one_work+0x78c/0x1310
[ 1836.362259][ C2] ? hlock_class+0x4e/0x130
[ 1836.362262][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1836.362267][ C2] ? assign_work+0x16c/0x240
[ 1836.362270][ C2] worker_thread+0x73d/0x1010
[ 1836.362276][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1836.362278][ C2] kthread+0x28f/0x360
[ 1836.362282][ C2] ? __pfx_kthread+0x10/0x10
[ 1836.362285][ C2] ret_from_fork+0x31/0x70
[ 1836.362289][ C2] ? __pfx_kthread+0x10/0x10
[ 1836.362291][ C2] ret_from_fork_asm+0x1b/0x30
[ 1836.362300][ C2]
[ 1860.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1613s! [kworker/u8:0:11]
[ 1860.564078][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1860.564494][ C2] irq event stamp: 753065
[ 1860.564710][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1860.565175][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1860.565643][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1860.566107][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1860.566565][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1860.567034][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1860.567636][ C2] Workqueue: netns cleanup_net
[ 1860.567880][ C2] RIP: 0010:kasan_report+0xd2/0xf0
[ 1860.568142][ C2] Code: 24 28 4c 89 6c 24 30 e8 7c f5 ff ff 48 8d 7c 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd ff ff ff 34 24 9d <48> 83 c4 70 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc
[ 1860.569099][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 1860.569403][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb35b0
[ 1860.569794][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1860.570191][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1860.570586][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000000
[ 1860.570981][ C2] R13: ffffffffaeeb35b0 R14: 0000000000000004 R15: ffff888001c02640
[ 1860.571374][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1860.571822][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1860.572149][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1860.572546][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1860.572939][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1860.573331][ C2] PKRU: 55555554
[ 1860.573510][ C2] Call Trace:
[ 1860.573681][ C2]
[ 1860.573828][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1860.574090][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1860.574332][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1860.574605][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1860.574877][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1860.575162][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1860.575424][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1860.575725][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1860.575986][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1860.576293][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1860.576584][ C2]
[ 1860.576734][ C2]
[ 1860.576882][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1860.577197][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1860.577484][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1860.577769][ C2] ? kasan_report+0xd2/0xf0
[ 1860.578005][ C2] kasan_check_range+0x39/0x1c0
[ 1860.578253][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 1860.578531][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1860.578840][ C2] ? __pfx___schedule+0x10/0x10
[ 1860.579089][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1860.579338][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1860.579608][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1860.579889][ C2] ? lock_acquire+0x1c1/0x220
[ 1860.580127][ C2] ? __mutex_lock+0x33e/0xb10
[ 1860.580365][ C2] ? __mutex_lock+0x811/0xb10
[ 1860.580600][ C2] _raw_spin_lock+0x67/0x80
[ 1860.580829][ C2] __mutex_lock+0x33e/0xb10
[ 1860.581061][ C2] ? __lock_release+0x40f/0x880
[ 1860.581305][ C2] ? __pfx___lock_release+0x10/0x10
[ 1860.581565][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1860.581869][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1860.582124][ C2] ? __pfx___up_read+0x10/0x10
[ 1860.582365][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1860.582632][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1860.582901][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1860.583191][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1860.583486][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1860.583767][ C2] __tcf_action_put+0x3d/0xf0
[ 1860.584007][ C2] tcf_action_destroy+0x43/0x130
[ 1860.584257][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1860.584496][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1860.584812][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1860.585085][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1860.585381][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1860.585674][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1860.585959][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1860.586268][ C2] ? __lock_release+0x40f/0x880
[ 1860.586514][ C2] ? __mutex_lock+0x26e/0xb10
[ 1860.586752][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1860.587035][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1860.587342][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1860.587643][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1860.587891][ C2] tcf_chain_flush+0x1e0/0x320
[ 1860.588136][ C2] __tcf_block_put+0x113/0x270
[ 1860.588380][ C2] tcf_block_put+0xaf/0xf0
[ 1860.588604][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1860.588862][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1860.589134][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1860.589407][ C2] __qdisc_destroy+0xee/0x340
[ 1860.589651][ C2] dev_shutdown+0x164/0x350
[ 1860.589879][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1860.590200][ C2] ? mutex_is_locked+0x17/0x50
[ 1860.590441][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1860.590777][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1860.591091][ C2] default_device_exit_batch+0x234/0x2d0
[ 1860.591374][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1860.591685][ C2] ? ops_exit_list+0xb4/0x170
[ 1860.591930][ C2] cleanup_net+0x4f3/0xb60
[ 1860.592156][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1860.592438][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1860.592687][ C2] ? lock_acquire+0x1c1/0x220
[ 1860.592922][ C2] ? process_one_work+0x714/0x1310
[ 1860.593184][ C2] process_one_work+0x78c/0x1310
[ 1860.593435][ C2] ? hlock_class+0x4e/0x130
[ 1860.593665][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1860.593935][ C2] ? assign_work+0x16c/0x240
[ 1860.594169][ C2] worker_thread+0x73d/0x1010
[ 1860.594408][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1860.594665][ C2] kthread+0x28f/0x360
[ 1860.594871][ C2] ? __pfx_kthread+0x10/0x10
[ 1860.595104][ C2] ret_from_fork+0x31/0x70
[ 1860.595329][ C2] ? __pfx_kthread+0x10/0x10
[ 1860.595561][ C2] ret_from_fork_asm+0x1b/0x30
[ 1860.595809][ C2]
[ 1874.533936][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 1874.534290][ C2] rcu: 2-....: (1740123 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=433780
[ 1874.534831][ C2] rcu: (t=1742781 jiffies g=119533 q=6114 ncpus=4)
[ 1874.535161][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1874.535627][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1874.536233][ C2] Workqueue: netns cleanup_net
[ 1874.536480][ C2] RIP: 0010:kasan_report+0x22/0xf0
[ 1874.536740][ C2] Code: 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca 65 4c 8b 3c 25 80 b8 1f 00 <41> 8b 87 e0 17 00 00 85 c0 0f 85 b7 00 00 00 48 89 fd 49 89 f6 89
[ 1874.537698][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 1874.538002][ C2] RAX: 0000000000000001 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 1874.538396][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1874.538789][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 1874.539181][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1874.539578][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: ffff888001c02640
[ 1874.539972][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1874.540413][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1874.540742][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1874.541137][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1874.541533][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1874.541935][ C2] PKRU: 55555554
[ 1874.542115][ C2] Call Trace:
[ 1874.542283][ C2]
[ 1874.542430][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 1874.542701][ C2] ? print_cpu_stall+0x263/0x6a0
[ 1874.542950][ C2] ? check_cpu_stall+0x284/0x500
[ 1874.543199][ C2] ? rcu_pending+0x92/0x360
[ 1874.543427][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 1874.543695][ C2] ? update_process_times+0xb9/0x110
[ 1874.543962][ C2] ? tick_sched_handle+0x67/0x130
[ 1874.544216][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 1874.544498][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1874.544738][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 1874.545046][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1874.545316][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1874.545602][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1874.545865][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1874.546169][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1874.546428][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1874.546735][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1874.547029][ C2]
[ 1874.547178][ C2]
[ 1874.547327][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1874.547641][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1874.547928][ C2] ? kasan_report+0x22/0xf0
[ 1874.548159][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1874.548445][ C2] ? kasan_report+0x8/0xf0
[ 1874.548671][ C2] kasan_check_range+0x39/0x1c0
[ 1874.548923][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 1874.549200][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1874.549508][ C2] ? __pfx___schedule+0x10/0x10
[ 1874.549756][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1874.550005][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1874.550272][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1874.550554][ C2] ? lock_acquire+0x1c1/0x220
[ 1874.550789][ C2] ? __mutex_lock+0x33e/0xb10
[ 1874.551026][ C2] ? __mutex_lock+0x811/0xb10
[ 1874.551264][ C2] _raw_spin_lock+0x67/0x80
[ 1874.551493][ C2] __mutex_lock+0x33e/0xb10
[ 1874.551732][ C2] ? __lock_release+0x40f/0x880
[ 1874.551978][ C2] ? __pfx___lock_release+0x10/0x10
[ 1874.552239][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1874.552539][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1874.552792][ C2] ? __pfx___up_read+0x10/0x10
[ 1874.553034][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1874.553300][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1874.553567][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1874.553856][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1874.554149][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1874.554431][ C2] __tcf_action_put+0x3d/0xf0
[ 1874.554670][ C2] tcf_action_destroy+0x43/0x130
[ 1874.554920][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1874.555158][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1874.555475][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1874.555745][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1874.556042][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1874.556332][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1874.556615][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1874.556925][ C2] ? __lock_release+0x40f/0x880
[ 1874.557170][ C2] ? __mutex_lock+0x26e/0xb10
[ 1874.557414][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1874.557693][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1874.557999][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1874.558301][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1874.558547][ C2] tcf_chain_flush+0x1e0/0x320
[ 1874.558787][ C2] __tcf_block_put+0x113/0x270
[ 1874.559031][ C2] tcf_block_put+0xaf/0xf0
[ 1874.559257][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1874.559515][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1874.559784][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1874.560058][ C2] __qdisc_destroy+0xee/0x340
[ 1874.560298][ C2] dev_shutdown+0x164/0x350
[ 1874.560528][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1874.560847][ C2] ? mutex_is_locked+0x17/0x50
[ 1874.561086][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1874.561425][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1874.561748][ C2] default_device_exit_batch+0x234/0x2d0
[ 1874.562029][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1874.562338][ C2] ? ops_exit_list+0xb4/0x170
[ 1874.562577][ C2] cleanup_net+0x4f3/0xb60
[ 1874.562799][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1874.563082][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1874.563332][ C2] ? lock_acquire+0x1c1/0x220
[ 1874.563567][ C2] ? process_one_work+0x714/0x1310
[ 1874.563828][ C2] process_one_work+0x78c/0x1310
[ 1874.564078][ C2] ? hlock_class+0x4e/0x130
[ 1874.564309][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1874.564579][ C2] ? assign_work+0x16c/0x240
[ 1874.564815][ C2] worker_thread+0x73d/0x1010
[ 1874.565058][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1874.565315][ C2] kthread+0x28f/0x360
[ 1874.565520][ C2] ? __pfx_kthread+0x10/0x10
[ 1874.565753][ C2] ret_from_fork+0x31/0x70
[ 1874.565976][ C2] ? __pfx_kthread+0x10/0x10
[ 1874.566209][ C2] ret_from_fork_asm+0x1b/0x30
[ 1874.566456][ C2]
[ 1900.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1651s! [kworker/u8:0:11]
[ 1900.564081][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1900.564495][ C2] irq event stamp: 753065
[ 1900.564711][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1900.565181][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1900.565648][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1900.566113][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1900.566570][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1900.567043][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1900.567653][ C2] Workqueue: netns cleanup_net
[ 1900.567898][ C2] RIP: 0010:__kasan_check_read+0x0/0x20
[ 1900.568180][ C2] Code: 48 c7 c7 b0 c2 be af 5b 5d 41 5c e9 9a b3 9b ff 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 8b 0c 24 89 f6 31 d2 e9 af ef ff ff 66 66 2e 0f 1f
[ 1900.569142][ C2] RSP: 0018:ffffc900000bf2a8 EFLAGS: 00000202
[ 1900.569445][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1900.569841][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1900.570236][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1900.570630][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1900.571026][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1900.571421][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1900.571872][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1900.572201][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1900.572600][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1900.572996][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1900.573390][ C2] PKRU: 55555554
[ 1900.573570][ C2] Call Trace:
[ 1900.573737][ C2]
[ 1900.573891][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1900.574153][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1900.574394][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1900.574668][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1900.574940][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1900.575227][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1900.575493][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1900.575797][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1900.576057][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1900.576365][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1900.576660][ C2]
[ 1900.576808][ C2]
[ 1900.576961][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1900.577276][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1900.577568][ C2] ? __pfx___kasan_check_read+0x10/0x10
[ 1900.577848][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 1900.578127][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1900.578438][ C2] ? __pfx___schedule+0x10/0x10
[ 1900.578692][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1900.578941][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1900.579210][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1900.579491][ C2] ? lock_acquire+0x1c1/0x220
[ 1900.579728][ C2] ? __mutex_lock+0x33e/0xb10
[ 1900.579968][ C2] ? __mutex_lock+0x811/0xb10
[ 1900.580205][ C2] _raw_spin_lock+0x67/0x80
[ 1900.580433][ C2] __mutex_lock+0x33e/0xb10
[ 1900.580663][ C2] ? __lock_release+0x40f/0x880
[ 1900.580908][ C2] ? __pfx___lock_release+0x10/0x10
[ 1900.581171][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1900.581465][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1900.581729][ C2] ? __pfx___up_read+0x10/0x10
[ 1900.581974][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1900.582242][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1900.582513][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1900.582801][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1900.583096][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1900.583379][ C2] __tcf_action_put+0x3d/0xf0
[ 1900.583620][ C2] tcf_action_destroy+0x43/0x130
[ 1900.583872][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1900.584111][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1900.584426][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1900.584699][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1900.584996][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1900.585289][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1900.585572][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1900.585880][ C2] ? __lock_release+0x40f/0x880
[ 1900.586127][ C2] ? __mutex_lock+0x26e/0xb10
[ 1900.586365][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1900.586644][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1900.586951][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1900.587251][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1900.587498][ C2] tcf_chain_flush+0x1e0/0x320
[ 1900.587741][ C2] __tcf_block_put+0x113/0x270
[ 1900.587985][ C2] tcf_block_put+0xaf/0xf0
[ 1900.588210][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1900.588474][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1900.588746][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1900.589021][ C2] __qdisc_destroy+0xee/0x340
[ 1900.589260][ C2] dev_shutdown+0x164/0x350
[ 1900.589488][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1900.589808][ C2] ? mutex_is_locked+0x17/0x50
[ 1900.590050][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1900.590388][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1900.590701][ C2] default_device_exit_batch+0x234/0x2d0
[ 1900.590992][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1900.591302][ C2] ? ops_exit_list+0xb4/0x170
[ 1900.591547][ C2] cleanup_net+0x4f3/0xb60
[ 1900.591773][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1900.592055][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1900.592304][ C2] ? lock_acquire+0x1c1/0x220
[ 1900.592541][ C2] ? process_one_work+0x714/0x1310
[ 1900.592800][ C2] process_one_work+0x78c/0x1310
[ 1900.593051][ C2] ? hlock_class+0x4e/0x130
[ 1900.593283][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1900.593555][ C2] ? assign_work+0x16c/0x240
[ 1900.593792][ C2] worker_thread+0x73d/0x1010
[ 1900.594032][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1900.594292][ C2] kthread+0x28f/0x360
[ 1900.594500][ C2] ? __pfx_kthread+0x10/0x10
[ 1900.594734][ C2] ret_from_fork+0x31/0x70
[ 1900.594961][ C2] ? __pfx_kthread+0x10/0x10
[ 1900.595195][ C2] ret_from_fork_asm+0x1b/0x30
[ 1900.595443][ C2]
[ 1928.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1677s! [kworker/u8:0:11]
[ 1928.564076][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1928.564489][ C2] irq event stamp: 753065
[ 1928.564704][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1928.565169][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1928.565635][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1928.566098][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1928.566553][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1928.567024][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1928.567627][ C2] Workqueue: netns cleanup_net
[ 1928.567871][ C2] RIP: 0010:report_enabled+0x19/0x30
[ 1928.568139][ C2] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 05 b9 a9 a4 05 48 d1 e8 83 e0 01 75 0d f0 48 0f ba 2d a7 a9 a4 05 00 <0f> 93 c0 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40
[ 1928.569098][ C2] RSP: 0018:ffffc900000bf200 EFLAGS: 00000247
[ 1928.569402][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb3f0c
[ 1928.569795][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1928.570190][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1928.570583][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1928.570976][ C2] R13: ffffffffaeeb3f0c R14: 0000000000000004 R15: ffff888001c02640
[ 1928.571368][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1928.571821][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1928.572150][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1928.572543][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1928.572935][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1928.573331][ C2] PKRU: 55555554
[ 1928.573510][ C2] Call Trace:
[ 1928.573679][ C2]
[ 1928.573827][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1928.574088][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1928.574328][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1928.574604][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1928.574873][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1928.575163][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1928.575431][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1928.575734][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1928.575994][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1928.576302][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1928.576596][ C2]
[ 1928.576744][ C2]
[ 1928.576893][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1928.577206][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1928.577500][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1928.577793][ C2] ? report_enabled+0x19/0x30
[ 1928.578029][ C2] kasan_report+0x41/0xf0
[ 1928.578252][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 1928.578533][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1928.578847][ C2] ? __pfx___schedule+0x10/0x10
[ 1928.579096][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1928.579346][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1928.579615][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1928.579899][ C2] ? lock_acquire+0x1c1/0x220
[ 1928.580134][ C2] ? __mutex_lock+0x33e/0xb10
[ 1928.580372][ C2] ? __mutex_lock+0x811/0xb10
[ 1928.580613][ C2] _raw_spin_lock+0x67/0x80
[ 1928.580842][ C2] __mutex_lock+0x33e/0xb10
[ 1928.581071][ C2] ? __lock_release+0x40f/0x880
[ 1928.581317][ C2] ? __pfx___lock_release+0x10/0x10
[ 1928.581586][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1928.581884][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1928.582139][ C2] ? __pfx___up_read+0x10/0x10
[ 1928.582387][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1928.582657][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1928.582925][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1928.583214][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1928.583510][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1928.583795][ C2] __tcf_action_put+0x3d/0xf0
[ 1928.584035][ C2] tcf_action_destroy+0x43/0x130
[ 1928.584288][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1928.584529][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1928.584848][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1928.585122][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1928.585422][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1928.585715][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1928.586002][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1928.586312][ C2] ? __lock_release+0x40f/0x880
[ 1928.586558][ C2] ? __mutex_lock+0x26e/0xb10
[ 1928.586803][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1928.587084][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1928.587389][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1928.587692][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1928.587940][ C2] tcf_chain_flush+0x1e0/0x320
[ 1928.588182][ C2] __tcf_block_put+0x113/0x270
[ 1928.588429][ C2] tcf_block_put+0xaf/0xf0
[ 1928.588656][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1928.588916][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1928.589188][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1928.589462][ C2] __qdisc_destroy+0xee/0x340
[ 1928.589703][ C2] dev_shutdown+0x164/0x350
[ 1928.589935][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1928.590257][ C2] ? mutex_is_locked+0x17/0x50
[ 1928.590498][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1928.590839][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1928.591158][ C2] default_device_exit_batch+0x234/0x2d0
[ 1928.591448][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1928.591760][ C2] ? ops_exit_list+0xb4/0x170
[ 1928.592002][ C2] cleanup_net+0x4f3/0xb60
[ 1928.592228][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1928.592514][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1928.592769][ C2] ? lock_acquire+0x1c1/0x220
[ 1928.593005][ C2] ? process_one_work+0x714/0x1310
[ 1928.593268][ C2] process_one_work+0x78c/0x1310
[ 1928.593519][ C2] ? hlock_class+0x4e/0x130
[ 1928.593749][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1928.594020][ C2] ? assign_work+0x16c/0x240
[ 1928.594254][ C2] worker_thread+0x73d/0x1010
[ 1928.594500][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1928.594756][ C2] kthread+0x28f/0x360
[ 1928.594962][ C2] ? __pfx_kthread+0x10/0x10
[ 1928.595196][ C2] ret_from_fork+0x31/0x70
[ 1928.595420][ C2] ? __pfx_kthread+0x10/0x10
[ 1928.595653][ C2] ret_from_fork_asm+0x1b/0x30
[ 1928.595901][ C2]
[ 1934.663957][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 1802605 jiffies s: 4309 root: 0x4/.
[ 1934.664596][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 1934.664970][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 1934.665249][ C2] NMI backtrace for cpu 2
[ 1934.665253][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1934.665257][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1934.665260][ C2] Workqueue: netns cleanup_net
[ 1934.665265][ C2] RIP: 0010:kasan_report+0xd2/0xf0
[ 1934.665270][ C2] Code: 24 28 4c 89 6c 24 30 e8 7c f5 ff ff 48 8d 7c 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd ff ff ff 34 24 9d <48> 83 c4 70 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc
[ 1934.665273][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 1934.665275][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb35b0
[ 1934.665277][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1934.665279][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1934.665281][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000000
[ 1934.665283][ C2] R13: ffffffffaeeb35b0 R14: 0000000000000004 R15: ffff888001c02640
[ 1934.665284][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1934.665286][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1934.665290][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1934.665291][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1934.665293][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1934.665294][ C2] PKRU: 55555554
[ 1934.665295][ C2] Call Trace:
[ 1934.665298][ C2]
[ 1934.665300][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 1934.665306][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 1934.665311][ C2] ? nmi_handle+0x153/0x420
[ 1934.665317][ C2] ? default_do_nmi+0x41/0x100
[ 1934.665322][ C2] ? exc_nmi+0xf3/0x120
[ 1934.665324][ C2] ? end_repeat_nmi+0xf/0x60
[ 1934.665328][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1934.665333][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1934.665337][ C2] ? kasan_report+0xd2/0xf0
[ 1934.665340][ C2] ? kasan_report+0xd2/0xf0
[ 1934.665343][ C2] ? kasan_report+0xd2/0xf0
[ 1934.665346][ C2]
[ 1934.665347][ C2]
[ 1934.665350][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1934.665353][ C2] kasan_check_range+0x39/0x1c0
[ 1934.665359][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 1934.665363][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1934.665367][ C2] ? __pfx___schedule+0x10/0x10
[ 1934.665372][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1934.665378][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1934.665380][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1934.665383][ C2] ? lock_acquire+0x1c1/0x220
[ 1934.665386][ C2] ? __mutex_lock+0x33e/0xb10
[ 1934.665390][ C2] ? __mutex_lock+0x811/0xb10
[ 1934.665393][ C2] _raw_spin_lock+0x67/0x80
[ 1934.665396][ C2] __mutex_lock+0x33e/0xb10
[ 1934.665399][ C2] ? __lock_release+0x40f/0x880
[ 1934.665403][ C2] ? __pfx___lock_release+0x10/0x10
[ 1934.665405][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1934.665411][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1934.665415][ C2] ? __pfx___up_read+0x10/0x10
[ 1934.665418][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1934.665421][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1934.665425][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1934.665430][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1934.665434][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1934.665439][ C2] __tcf_action_put+0x3d/0xf0
[ 1934.665444][ C2] tcf_action_destroy+0x43/0x130
[ 1934.665448][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1934.665451][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1934.665461][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1934.665470][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1934.665478][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1934.665487][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1934.665497][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1934.665504][ C2] ? __lock_release+0x40f/0x880
[ 1934.665508][ C2] ? __mutex_lock+0x26e/0xb10
[ 1934.665512][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1934.665522][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1934.665530][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1934.665534][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1934.665538][ C2] tcf_chain_flush+0x1e0/0x320
[ 1934.665542][ C2] __tcf_block_put+0x113/0x270
[ 1934.665546][ C2] tcf_block_put+0xaf/0xf0
[ 1934.665549][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1934.665553][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1934.665560][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1934.665566][ C2] __qdisc_destroy+0xee/0x340
[ 1934.665570][ C2] dev_shutdown+0x164/0x350
[ 1934.665573][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1934.665578][ C2] ? mutex_is_locked+0x17/0x50
[ 1934.665580][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1934.665583][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1934.665587][ C2] default_device_exit_batch+0x234/0x2d0
[ 1934.665590][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1934.665593][ C2] ? ops_exit_list+0xb4/0x170
[ 1934.665596][ C2] cleanup_net+0x4f3/0xb60
[ 1934.665599][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1934.665602][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1934.665605][ C2] ? lock_acquire+0x1c1/0x220
[ 1934.665607][ C2] ? process_one_work+0x714/0x1310
[ 1934.665611][ C2] process_one_work+0x78c/0x1310
[ 1934.665615][ C2] ? hlock_class+0x4e/0x130
[ 1934.665618][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1934.665622][ C2] ? assign_work+0x16c/0x240
[ 1934.665625][ C2] worker_thread+0x73d/0x1010
[ 1934.665630][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1934.665633][ C2] kthread+0x28f/0x360
[ 1934.665635][ C2] ? __pfx_kthread+0x10/0x10
[ 1934.665637][ C2] ret_from_fork+0x31/0x70
[ 1934.665639][ C2] ? __pfx_kthread+0x10/0x10
[ 1934.665641][ C2] ret_from_fork_asm+0x1b/0x30
[ 1934.665649][ C2]
[ 1952.566936][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 1952.567301][ C2] rcu: 2-....: (1818035 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=453224
[ 1952.567842][ C2] rcu: (t=1820814 jiffies g=119533 q=6117 ncpus=4)
[ 1952.568174][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1952.568642][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1952.569256][ C2] Workqueue: netns cleanup_net
[ 1952.569504][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 1952.569832][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 1952.570793][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 1952.571097][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 1952.571502][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1952.571897][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1952.572293][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1952.572688][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1952.573083][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1952.573526][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1952.573854][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1952.574250][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1952.574645][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1952.575040][ C2] PKRU: 55555554
[ 1952.575220][ C2] Call Trace:
[ 1952.575388][ C2]
[ 1952.575537][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 1952.575809][ C2] ? print_cpu_stall+0x263/0x6a0
[ 1952.576065][ C2] ? check_cpu_stall+0x284/0x500
[ 1952.576315][ C2] ? rcu_pending+0x92/0x360
[ 1952.576541][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 1952.576811][ C2] ? update_process_times+0xb9/0x110
[ 1952.577079][ C2] ? tick_sched_handle+0x67/0x130
[ 1952.577335][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 1952.577615][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1952.577856][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 1952.578165][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1952.578434][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1952.578720][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1952.578985][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1952.579288][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1952.579547][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1952.579853][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1952.580150][ C2]
[ 1952.580298][ C2]
[ 1952.580449][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1952.580762][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 1952.581053][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 1952.581354][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1952.581663][ C2] ? __pfx___schedule+0x10/0x10
[ 1952.581912][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1952.582161][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1952.582432][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1952.582713][ C2] ? lock_acquire+0x1c1/0x220
[ 1952.582951][ C2] ? __mutex_lock+0x33e/0xb10
[ 1952.583190][ C2] ? __mutex_lock+0x811/0xb10
[ 1952.583425][ C2] _raw_spin_lock+0x67/0x80
[ 1952.583655][ C2] __mutex_lock+0x33e/0xb10
[ 1952.583885][ C2] ? __lock_release+0x40f/0x880
[ 1952.584131][ C2] ? __pfx___lock_release+0x10/0x10
[ 1952.584393][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1952.584690][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1952.584943][ C2] ? __pfx___up_read+0x10/0x10
[ 1952.585186][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1952.585453][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1952.585721][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1952.586011][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1952.586302][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1952.586584][ C2] __tcf_action_put+0x3d/0xf0
[ 1952.586824][ C2] tcf_action_destroy+0x43/0x130
[ 1952.587073][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1952.587309][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1952.587626][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1952.587898][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1952.588196][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1952.588488][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1952.588770][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1952.589079][ C2] ? __lock_release+0x40f/0x880
[ 1952.589325][ C2] ? __mutex_lock+0x26e/0xb10
[ 1952.589561][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1952.589841][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1952.590146][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1952.590445][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1952.590691][ C2] tcf_chain_flush+0x1e0/0x320
[ 1952.590933][ C2] __tcf_block_put+0x113/0x270
[ 1952.591176][ C2] tcf_block_put+0xaf/0xf0
[ 1952.591407][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1952.591671][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1952.591942][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1952.592215][ C2] __qdisc_destroy+0xee/0x340
[ 1952.592453][ C2] dev_shutdown+0x164/0x350
[ 1952.592681][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1952.593000][ C2] ? mutex_is_locked+0x17/0x50
[ 1952.593240][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1952.593574][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1952.593888][ C2] default_device_exit_batch+0x234/0x2d0
[ 1952.594172][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1952.594484][ C2] ? ops_exit_list+0xb4/0x170
[ 1952.594719][ C2] cleanup_net+0x4f3/0xb60
[ 1952.594949][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1952.595229][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1952.595477][ C2] ? lock_acquire+0x1c1/0x220
[ 1952.595713][ C2] ? process_one_work+0x714/0x1310
[ 1952.595974][ C2] process_one_work+0x78c/0x1310
[ 1952.596224][ C2] ? hlock_class+0x4e/0x130
[ 1952.596455][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1952.596724][ C2] ? assign_work+0x16c/0x240
[ 1952.596958][ C2] worker_thread+0x73d/0x1010
[ 1952.597195][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1952.597454][ C2] kthread+0x28f/0x360
[ 1952.597662][ C2] ? __pfx_kthread+0x10/0x10
[ 1952.597892][ C2] ret_from_fork+0x31/0x70
[ 1952.598118][ C2] ? __pfx_kthread+0x10/0x10
[ 1952.598350][ C2] ret_from_fork_asm+0x1b/0x30
[ 1952.598595][ C2]
[ 1980.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1725s! [kworker/u8:0:11]
[ 1980.564068][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 1980.564481][ C2] irq event stamp: 753065
[ 1980.564696][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 1980.565159][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 1980.565624][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 1980.566087][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 1980.566543][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 1980.567007][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1980.567613][ C2] Workqueue: netns cleanup_net
[ 1980.567858][ C2] RIP: 0010:kasan_check_range+0x1b/0x1c0
[ 1980.568140][ C2] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 85 f6 0f 84 5e 01 00 00 48 89 f8 41 54 44 0f b6 c2 48 01 f0 55 53 <72> 14 eb 26 cc cc cc 48 b8 ff ff ff ff ff ff ff fe 48 39 c7 77 23
[ 1980.569096][ C2] RSP: 0018:ffffc900000bf290 EFLAGS: 00000286
[ 1980.569400][ C2] RAX: ffff8880380fd00c RBX: 000000000000000b RCX: ffffffffaeeb35b0
[ 1980.569792][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 1980.570187][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 1980.570579][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 1980.570971][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 1980.571370][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 1980.571810][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1980.572141][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 1980.572535][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1980.572927][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1980.573319][ C2] PKRU: 55555554
[ 1980.573497][ C2] Call Trace:
[ 1980.573667][ C2]
[ 1980.573813][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 1980.574073][ C2] ? __run_hrtimer+0x1c0/0x710
[ 1980.574315][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 1980.574589][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 1980.574857][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 1980.575145][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 1980.575406][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 1980.575710][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 1980.575969][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 1980.576276][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 1980.576568][ C2]
[ 1980.576716][ C2]
[ 1980.576864][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1980.577177][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 1980.577464][ C2] ? kasan_check_range+0x1b/0x1c0
[ 1980.577718][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 1980.577995][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1980.578303][ C2] ? __pfx___schedule+0x10/0x10
[ 1980.578549][ C2] do_raw_spin_lock+0x1ec/0x270
[ 1980.578798][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1980.579066][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 1980.579348][ C2] ? lock_acquire+0x1c1/0x220
[ 1980.579583][ C2] ? __mutex_lock+0x33e/0xb10
[ 1980.579821][ C2] ? __mutex_lock+0x811/0xb10
[ 1980.580058][ C2] _raw_spin_lock+0x67/0x80
[ 1980.580285][ C2] __mutex_lock+0x33e/0xb10
[ 1980.580515][ C2] ? __lock_release+0x40f/0x880
[ 1980.580760][ C2] ? __pfx___lock_release+0x10/0x10
[ 1980.581020][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1980.581326][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 1980.581579][ C2] ? __pfx___up_read+0x10/0x10
[ 1980.581821][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 1980.582091][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 1980.582358][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 1980.582645][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 1980.582938][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 1980.583220][ C2] __tcf_action_put+0x3d/0xf0
[ 1980.583459][ C2] tcf_action_destroy+0x43/0x130
[ 1980.583710][ C2] tcf_exts_destroy+0x3c/0xb0
[ 1980.583948][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 1980.584266][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 1980.584538][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 1980.584835][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 1980.585128][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 1980.585412][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 1980.585721][ C2] ? __lock_release+0x40f/0x880
[ 1980.585968][ C2] ? __mutex_lock+0x26e/0xb10
[ 1980.586207][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 1980.586487][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 1980.586794][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 1980.587096][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 1980.587341][ C2] tcf_chain_flush+0x1e0/0x320
[ 1980.587582][ C2] __tcf_block_put+0x113/0x270
[ 1980.587825][ C2] tcf_block_put+0xaf/0xf0
[ 1980.588051][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 1980.588310][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 1980.588579][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 1980.588852][ C2] __qdisc_destroy+0xee/0x340
[ 1980.589091][ C2] dev_shutdown+0x164/0x350
[ 1980.589320][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 1980.589642][ C2] ? mutex_is_locked+0x17/0x50
[ 1980.589882][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1980.590222][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1980.590536][ C2] default_device_exit_batch+0x234/0x2d0
[ 1980.590818][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1980.591135][ C2] ? ops_exit_list+0xb4/0x170
[ 1980.591374][ C2] cleanup_net+0x4f3/0xb60
[ 1980.591597][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1980.591881][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 1980.592131][ C2] ? lock_acquire+0x1c1/0x220
[ 1980.592366][ C2] ? process_one_work+0x714/0x1310
[ 1980.592629][ C2] process_one_work+0x78c/0x1310
[ 1980.592880][ C2] ? hlock_class+0x4e/0x130
[ 1980.593111][ C2] ? __pfx_process_one_work+0x10/0x10
[ 1980.593380][ C2] ? assign_work+0x16c/0x240
[ 1980.593614][ C2] worker_thread+0x73d/0x1010
[ 1980.593854][ C2] ? __pfx_worker_thread+0x10/0x10
[ 1980.594112][ C2] kthread+0x28f/0x360
[ 1980.594316][ C2] ? __pfx_kthread+0x10/0x10
[ 1980.594549][ C2] ret_from_fork+0x31/0x70
[ 1980.594772][ C2] ? __pfx_kthread+0x10/0x10
[ 1980.595005][ C2] ret_from_fork_asm+0x1b/0x30
[ 1980.595253][ C2]
[ 2008.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1751s! [kworker/u8:0:11]
[ 2008.564078][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 2008.564489][ C2] irq event stamp: 753065
[ 2008.564703][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 2008.565170][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 2008.565633][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 2008.566094][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 2008.566549][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 2008.567023][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 2008.567626][ C2] Workqueue: netns cleanup_net
[ 2008.567869][ C2] RIP: 0010:kasan_check_range+0x1b/0x1c0
[ 2008.568155][ C2] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 85 f6 0f 84 5e 01 00 00 48 89 f8 41 54 44 0f b6 c2 48 01 f0 55 53 <72> 14 eb 26 cc cc cc 48 b8 ff ff ff ff ff ff ff fe 48 39 c7 77 23
[ 2008.569109][ C2] RSP: 0018:ffffc900000bf290 EFLAGS: 00000286
[ 2008.569410][ C2] RAX: ffff8880380fd00c RBX: 000000000000000b RCX: ffffffffaeeb35b0
[ 2008.569803][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 2008.570195][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 2008.570585][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 2008.570988][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 2008.571383][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 2008.571823][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2008.572152][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 2008.572546][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2008.572940][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2008.573336][ C2] PKRU: 55555554
[ 2008.573515][ C2] Call Trace:
[ 2008.573681][ C2]
[ 2008.573829][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 2008.574091][ C2] ? __run_hrtimer+0x1c0/0x710
[ 2008.574331][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 2008.574605][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 2008.574873][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 2008.575161][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 2008.575427][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 2008.575728][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 2008.575990][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 2008.576295][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 2008.576588][ C2]
[ 2008.576736][ C2]
[ 2008.576886][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 2008.577200][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 2008.577486][ C2] ? kasan_check_range+0x1b/0x1c0
[ 2008.577739][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 2008.578019][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 2008.578328][ C2] ? __pfx___schedule+0x10/0x10
[ 2008.578576][ C2] do_raw_spin_lock+0x1ec/0x270
[ 2008.578824][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 2008.579098][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 2008.579386][ C2] ? lock_acquire+0x1c1/0x220
[ 2008.579621][ C2] ? __mutex_lock+0x33e/0xb10
[ 2008.579858][ C2] ? __mutex_lock+0x811/0xb10
[ 2008.580095][ C2] _raw_spin_lock+0x67/0x80
[ 2008.580324][ C2] __mutex_lock+0x33e/0xb10
[ 2008.580550][ C2] ? __lock_release+0x40f/0x880
[ 2008.580794][ C2] ? __pfx___lock_release+0x10/0x10
[ 2008.581064][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2008.581361][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 2008.581614][ C2] ? __pfx___up_read+0x10/0x10
[ 2008.581856][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 2008.582122][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 2008.582387][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 2008.582675][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2008.582966][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 2008.583251][ C2] __tcf_action_put+0x3d/0xf0
[ 2008.583487][ C2] tcf_action_destroy+0x43/0x130
[ 2008.583736][ C2] tcf_exts_destroy+0x3c/0xb0
[ 2008.583976][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 2008.584293][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 2008.584562][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 2008.584861][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 2008.585151][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 2008.585438][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 2008.585746][ C2] ? __lock_release+0x40f/0x880
[ 2008.585992][ C2] ? __mutex_lock+0x26e/0xb10
[ 2008.586230][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 2008.586512][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 2008.586824][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 2008.587127][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 2008.587375][ C2] tcf_chain_flush+0x1e0/0x320
[ 2008.587617][ C2] __tcf_block_put+0x113/0x270
[ 2008.587857][ C2] tcf_block_put+0xaf/0xf0
[ 2008.588085][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 2008.588344][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 2008.588613][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 2008.588886][ C2] __qdisc_destroy+0xee/0x340
[ 2008.589125][ C2] dev_shutdown+0x164/0x350
[ 2008.589355][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 2008.589675][ C2] ? mutex_is_locked+0x17/0x50
[ 2008.589916][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 2008.590253][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 2008.590568][ C2] default_device_exit_batch+0x234/0x2d0
[ 2008.590849][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 2008.591166][ C2] ? ops_exit_list+0xb4/0x170
[ 2008.591403][ C2] cleanup_net+0x4f3/0xb60
[ 2008.591628][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 2008.591910][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 2008.592160][ C2] ? lock_acquire+0x1c1/0x220
[ 2008.592397][ C2] ? process_one_work+0x714/0x1310
[ 2008.592656][ C2] process_one_work+0x78c/0x1310
[ 2008.592906][ C2] ? hlock_class+0x4e/0x130
[ 2008.593135][ C2] ? __pfx_process_one_work+0x10/0x10
[ 2008.593406][ C2] ? assign_work+0x16c/0x240
[ 2008.593638][ C2] worker_thread+0x73d/0x1010
[ 2008.593878][ C2] ? __pfx_worker_thread+0x10/0x10
[ 2008.594136][ C2] kthread+0x28f/0x360
[ 2008.594340][ C2] ? __pfx_kthread+0x10/0x10
[ 2008.594574][ C2] ret_from_fork+0x31/0x70
[ 2008.594800][ C2] ? __pfx_kthread+0x10/0x10
[ 2008.595031][ C2] ret_from_fork_asm+0x1b/0x30
[ 2008.595280][ C2]
[ 2030.599937][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 2030.600297][ C2] rcu: 2-....: (1895976 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=472615
[ 2030.600833][ C2] rcu: (t=1898847 jiffies g=119533 q=6117 ncpus=4)
[ 2030.601177][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 2030.601643][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 2030.602262][ C2] Workqueue: netns cleanup_net
[ 2030.602508][ C2] RIP: 0010:kasan_report+0x16/0xf0
[ 2030.602769][ C2] Code: 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 <0f> 01 ca 65 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 85 c0 0f
[ 2030.603725][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000282
[ 2030.604028][ C2] RAX: 00000000000000fb RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 2030.604424][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 2030.604817][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 2030.605213][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 2030.605607][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 2030.606002][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 2030.606442][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2030.606771][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 2030.607166][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2030.607558][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2030.607954][ C2] PKRU: 55555554
[ 2030.608133][ C2] Call Trace:
[ 2030.608301][ C2]
[ 2030.608447][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 2030.608720][ C2] ? print_cpu_stall+0x263/0x6a0
[ 2030.608970][ C2] ? check_cpu_stall+0x284/0x500
[ 2030.609220][ C2] ? rcu_pending+0x92/0x360
[ 2030.609447][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 2030.609713][ C2] ? update_process_times+0xb9/0x110
[ 2030.609982][ C2] ? tick_sched_handle+0x67/0x130
[ 2030.610237][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 2030.610517][ C2] ? __run_hrtimer+0x1c0/0x710
[ 2030.610757][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 2030.611073][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 2030.611342][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 2030.611626][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 2030.611891][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 2030.612194][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 2030.612453][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 2030.612761][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 2030.613059][ C2]
[ 2030.613206][ C2]
[ 2030.613356][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 2030.613670][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 2030.613964][ C2] ? kasan_report+0x16/0xf0
[ 2030.614196][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 2030.614477][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 2030.614786][ C2] ? __pfx___schedule+0x10/0x10
[ 2030.615034][ C2] do_raw_spin_lock+0x1ec/0x270
[ 2030.615284][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 2030.615553][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 2030.615834][ C2] ? lock_acquire+0x1c1/0x220
[ 2030.616070][ C2] ? __mutex_lock+0x33e/0xb10
[ 2030.616309][ C2] ? __mutex_lock+0x811/0xb10
[ 2030.616545][ C2] _raw_spin_lock+0x67/0x80
[ 2030.616777][ C2] __mutex_lock+0x33e/0xb10
[ 2030.617007][ C2] ? __lock_release+0x40f/0x880
[ 2030.617253][ C2] ? __pfx___lock_release+0x10/0x10
[ 2030.617513][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2030.617810][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 2030.618064][ C2] ? __pfx___up_read+0x10/0x10
[ 2030.618305][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 2030.618573][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 2030.618841][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 2030.619130][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2030.619424][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 2030.619706][ C2] __tcf_action_put+0x3d/0xf0
[ 2030.619946][ C2] tcf_action_destroy+0x43/0x130
[ 2030.620196][ C2] tcf_exts_destroy+0x3c/0xb0
[ 2030.620434][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 2030.620751][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 2030.621032][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 2030.621330][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 2030.621621][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 2030.621905][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 2030.622215][ C2] ? __lock_release+0x40f/0x880
[ 2030.622460][ C2] ? __mutex_lock+0x26e/0xb10
[ 2030.622698][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 2030.622977][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 2030.623282][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 2030.623584][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 2030.623829][ C2] tcf_chain_flush+0x1e0/0x320
[ 2030.624071][ C2] __tcf_block_put+0x113/0x270
[ 2030.624313][ C2] tcf_block_put+0xaf/0xf0
[ 2030.624538][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 2030.624801][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 2030.625070][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 2030.625341][ C2] __qdisc_destroy+0xee/0x340
[ 2030.625581][ C2] dev_shutdown+0x164/0x350
[ 2030.625811][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 2030.626131][ C2] ? mutex_is_locked+0x17/0x50
[ 2030.626371][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 2030.626710][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 2030.627024][ C2] default_device_exit_batch+0x234/0x2d0
[ 2030.627305][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 2030.627614][ C2] ? ops_exit_list+0xb4/0x170
[ 2030.627853][ C2] cleanup_net+0x4f3/0xb60
[ 2030.628077][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 2030.628360][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 2030.628610][ C2] ? lock_acquire+0x1c1/0x220
[ 2030.628844][ C2] ? process_one_work+0x714/0x1310
[ 2030.629104][ C2] process_one_work+0x78c/0x1310
[ 2030.629354][ C2] ? hlock_class+0x4e/0x130
[ 2030.629585][ C2] ? __pfx_process_one_work+0x10/0x10
[ 2030.629855][ C2] ? assign_work+0x16c/0x240
[ 2030.630089][ C2] worker_thread+0x73d/0x1010
[ 2030.630329][ C2] ? __pfx_worker_thread+0x10/0x10
[ 2030.630586][ C2] kthread+0x28f/0x360
[ 2030.630791][ C2] ? __pfx_kthread+0x10/0x10
[ 2030.631034][ C2] ret_from_fork+0x31/0x70
[ 2030.631258][ C2] ? __pfx_kthread+0x10/0x10
[ 2030.631490][ C2] ret_from_fork_asm+0x1b/0x30
[ 2030.631739][ C2]
[ 2032.967965][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 1900909 jiffies s: 4309 root: 0x4/.
[ 2032.968655][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 2032.969029][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 2032.969307][ C2] NMI backtrace for cpu 2
[ 2032.969311][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 2032.969315][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 2032.969318][ C2] Workqueue: netns cleanup_net
[ 2032.969322][ C2] RIP: 0010:kasan_check_range+0x1a/0x1c0
[ 2032.969329][ C2] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 85 f6 0f 84 5e 01 00 00 48 89 f8 41 54 44 0f b6 c2 48 01 f0 55 <53> 72 14 eb 26 cc cc cc 48 b8 ff ff ff ff ff ff ff fe 48 39 c7 77
[ 2032.969332][ C2] RSP: 0018:ffffc900000bf298 EFLAGS: 00000286
[ 2032.969334][ C2] RAX: ffff8880380fd00c RBX: 000000000000000b RCX: ffffffffaeeb35b0
[ 2032.969336][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 2032.969338][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 2032.969339][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 2032.969341][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 2032.969343][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 2032.969345][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2032.969348][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 2032.969350][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2032.969351][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2032.969353][ C2] PKRU: 55555554
[ 2032.969354][ C2] Call Trace:
[ 2032.969356][ C2]
[ 2032.969359][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 2032.969365][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 2032.969369][ C2] ? nmi_handle+0x153/0x420
[ 2032.969375][ C2] ? default_do_nmi+0x41/0x100
[ 2032.969380][ C2] ? exc_nmi+0xf3/0x120
[ 2032.969382][ C2] ? end_repeat_nmi+0xf/0x60
[ 2032.969387][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 2032.969392][ C2] ? kasan_check_range+0x1a/0x1c0
[ 2032.969395][ C2] ? kasan_check_range+0x1a/0x1c0
[ 2032.969399][ C2] ? kasan_check_range+0x1a/0x1c0
[ 2032.969402][ C2]
[ 2032.969404][ C2]
[ 2032.969405][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 2032.969408][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 2032.969412][ C2] ? __pfx___schedule+0x10/0x10
[ 2032.969416][ C2] do_raw_spin_lock+0x1ec/0x270
[ 2032.969421][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 2032.969424][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 2032.969427][ C2] ? lock_acquire+0x1c1/0x220
[ 2032.969429][ C2] ? __mutex_lock+0x33e/0xb10
[ 2032.969433][ C2] ? __mutex_lock+0x811/0xb10
[ 2032.969436][ C2] _raw_spin_lock+0x67/0x80
[ 2032.969439][ C2] __mutex_lock+0x33e/0xb10
[ 2032.969442][ C2] ? __lock_release+0x40f/0x880
[ 2032.969445][ C2] ? __pfx___lock_release+0x10/0x10
[ 2032.969447][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2032.969452][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 2032.969455][ C2] ? __pfx___up_read+0x10/0x10
[ 2032.969458][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 2032.969462][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 2032.969465][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 2032.969470][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2032.969473][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 2032.969477][ C2] __tcf_action_put+0x3d/0xf0
[ 2032.969481][ C2] tcf_action_destroy+0x43/0x130
[ 2032.969485][ C2] tcf_exts_destroy+0x3c/0xb0
[ 2032.969488][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 2032.969497][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 2032.969506][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 2032.969514][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 2032.969523][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 2032.969532][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 2032.969540][ C2] ? __lock_release+0x40f/0x880
[ 2032.969543][ C2] ? __mutex_lock+0x26e/0xb10
[ 2032.969548][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 2032.969557][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 2032.969565][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 2032.969570][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 2032.969574][ C2] tcf_chain_flush+0x1e0/0x320
[ 2032.969578][ C2] __tcf_block_put+0x113/0x270
[ 2032.969582][ C2] tcf_block_put+0xaf/0xf0
[ 2032.969585][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 2032.969589][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 2032.969596][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 2032.969602][ C2] __qdisc_destroy+0xee/0x340
[ 2032.969605][ C2] dev_shutdown+0x164/0x350
[ 2032.969608][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 2032.969612][ C2] ? mutex_is_locked+0x17/0x50
[ 2032.969615][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 2032.969617][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 2032.969622][ C2] default_device_exit_batch+0x234/0x2d0
[ 2032.969624][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 2032.969628][ C2] ? ops_exit_list+0xb4/0x170
[ 2032.969631][ C2] cleanup_net+0x4f3/0xb60
[ 2032.969633][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 2032.969636][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 2032.969639][ C2] ? lock_acquire+0x1c1/0x220
[ 2032.969641][ C2] ? process_one_work+0x714/0x1310
[ 2032.969645][ C2] process_one_work+0x78c/0x1310
[ 2032.969650][ C2] ? hlock_class+0x4e/0x130
[ 2032.969652][ C2] ? __pfx_process_one_work+0x10/0x10
[ 2032.969657][ C2] ? assign_work+0x16c/0x240
[ 2032.969660][ C2] worker_thread+0x73d/0x1010
[ 2032.969665][ C2] ? __pfx_worker_thread+0x10/0x10
[ 2032.969667][ C2] kthread+0x28f/0x360
[ 2032.969669][ C2] ? __pfx_kthread+0x10/0x10
[ 2032.969672][ C2] ret_from_fork+0x31/0x70
[ 2032.969674][ C2] ? __pfx_kthread+0x10/0x10
[ 2032.969676][ C2] ret_from_fork_asm+0x1b/0x30
[ 2032.969682][ C2]
[ 2060.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1800s! [kworker/u8:0:11]
[ 2060.564081][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 2060.564491][ C2] irq event stamp: 753065
[ 2060.564710][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 2060.565176][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 2060.565642][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 2060.566114][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 2060.566571][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 2060.567039][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 2060.567646][ C2] Workqueue: netns cleanup_net
[ 2060.567890][ C2] RIP: 0010:kasan_report+0x16/0xf0
[ 2060.568151][ C2] Code: 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 <0f> 01 ca 65 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 85 c0 0f
[ 2060.569109][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000282
[ 2060.569414][ C2] RAX: 00000000000000fb RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 2060.569807][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 2060.570201][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 2060.570593][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 2060.570998][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 2060.571393][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 2060.571842][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2060.572170][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 2060.572563][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2060.572959][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2060.573353][ C2] PKRU: 55555554
[ 2060.573533][ C2] Call Trace:
[ 2060.573702][ C2]
[ 2060.573850][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 2060.574111][ C2] ? __run_hrtimer+0x1c0/0x710
[ 2060.574352][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 2060.574630][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 2060.574898][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 2060.575185][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 2060.575448][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 2060.575751][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 2060.576012][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 2060.576317][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 2060.576609][ C2]
[ 2060.576758][ C2]
[ 2060.576907][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 2060.577221][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 2060.577512][ C2] ? kasan_report+0x16/0xf0
[ 2060.577745][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 2060.578028][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 2060.578337][ C2] ? __pfx___schedule+0x10/0x10
[ 2060.578584][ C2] do_raw_spin_lock+0x1ec/0x270
[ 2060.578833][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 2060.579102][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 2060.579384][ C2] ? lock_acquire+0x1c1/0x220
[ 2060.579619][ C2] ? __mutex_lock+0x33e/0xb10
[ 2060.579855][ C2] ? __mutex_lock+0x811/0xb10
[ 2060.580096][ C2] _raw_spin_lock+0x67/0x80
[ 2060.580326][ C2] __mutex_lock+0x33e/0xb10
[ 2060.580553][ C2] ? __lock_release+0x40f/0x880
[ 2060.580808][ C2] ? __pfx___lock_release+0x10/0x10
[ 2060.581068][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2060.581364][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 2060.581617][ C2] ? __pfx___up_read+0x10/0x10
[ 2060.581860][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 2060.582125][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 2060.582392][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 2060.582681][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2060.582972][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 2060.583257][ C2] __tcf_action_put+0x3d/0xf0
[ 2060.583493][ C2] tcf_action_destroy+0x43/0x130
[ 2060.583743][ C2] tcf_exts_destroy+0x3c/0xb0
[ 2060.583981][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 2060.584299][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 2060.584569][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 2060.584866][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 2060.585158][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 2060.585444][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 2060.585753][ C2] ? __lock_release+0x40f/0x880
[ 2060.585998][ C2] ? __mutex_lock+0x26e/0xb10
[ 2060.586237][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 2060.586515][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 2060.586822][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 2060.587126][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 2060.587374][ C2] tcf_chain_flush+0x1e0/0x320
[ 2060.587617][ C2] __tcf_block_put+0x113/0x270
[ 2060.587856][ C2] tcf_block_put+0xaf/0xf0
[ 2060.588083][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 2060.588341][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 2060.588612][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 2060.588885][ C2] __qdisc_destroy+0xee/0x340
[ 2060.589125][ C2] dev_shutdown+0x164/0x350
[ 2060.589357][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 2060.589677][ C2] ? mutex_is_locked+0x17/0x50
[ 2060.589918][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 2060.590260][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 2060.590575][ C2] default_device_exit_batch+0x234/0x2d0
[ 2060.590865][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 2060.591176][ C2] ? ops_exit_list+0xb4/0x170
[ 2060.591415][ C2] cleanup_net+0x4f3/0xb60
[ 2060.591640][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 2060.591922][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 2060.592173][ C2] ? lock_acquire+0x1c1/0x220
[ 2060.592410][ C2] ? process_one_work+0x714/0x1310
[ 2060.592670][ C2] process_one_work+0x78c/0x1310
[ 2060.592921][ C2] ? hlock_class+0x4e/0x130
[ 2060.593150][ C2] ? __pfx_process_one_work+0x10/0x10
[ 2060.593421][ C2] ? assign_work+0x16c/0x240
[ 2060.593653][ C2] worker_thread+0x73d/0x1010
[ 2060.593893][ C2] ? __pfx_worker_thread+0x10/0x10
[ 2060.594150][ C2] kthread+0x28f/0x360
[ 2060.594357][ C2] ? __pfx_kthread+0x10/0x10
[ 2060.594590][ C2] ret_from_fork+0x31/0x70
[ 2060.594815][ C2] ? __pfx_kthread+0x10/0x10
[ 2060.595047][ C2] ret_from_fork_asm+0x1b/0x30
[ 2060.595294][ C2]
[ 2088.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1826s! [kworker/u8:0:11]
[ 2088.564082][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 2088.564495][ C2] irq event stamp: 753065
[ 2088.564710][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 2088.565174][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 2088.565640][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 2088.566103][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 2088.566561][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 2088.567027][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 2088.567631][ C2] Workqueue: netns cleanup_net
[ 2088.567877][ C2] RIP: 0010:kasan_check_range+0x34/0x1c0
[ 2088.568163][ C2] Code: 01 00 00 48 89 f8 41 54 44 0f b6 c2 48 01 f0 55 53 72 14 eb 26 cc cc cc 48 b8 ff ff ff ff ff ff ff fe 48 39 c7 77 23 44 89 c2 57 e8 ff ff 83 f0 01 5b 5d 41 5c c3 cc cc cc cc 48 b8 ff ff ff
[ 2088.569120][ C2] RSP: 0018:ffffc900000bf290 EFLAGS: 00000213
[ 2088.569425][ C2] RAX: 0000000000000001 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 2088.569819][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 2088.570213][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 2088.570615][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 2088.571009][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 2088.571402][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 2088.571842][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2088.572171][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 2088.572566][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2088.572959][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2088.573353][ C2] PKRU: 55555554
[ 2088.573532][ C2] Call Trace:
[ 2088.573702][ C2]
[ 2088.573848][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 2088.574111][ C2] ? __run_hrtimer+0x1c0/0x710
[ 2088.574351][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 2088.574628][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 2088.574897][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 2088.575181][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 2088.575444][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 2088.575746][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 2088.576006][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 2088.576315][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 2088.576609][ C2]
[ 2088.576757][ C2]
[ 2088.576907][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 2088.577221][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 2088.577511][ C2] ? kasan_check_range+0x34/0x1c0
[ 2088.577767][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 2088.578051][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 2088.578360][ C2] ? __pfx___schedule+0x10/0x10
[ 2088.578609][ C2] do_raw_spin_lock+0x1ec/0x270
[ 2088.578860][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 2088.579128][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 2088.579411][ C2] ? lock_acquire+0x1c1/0x220
[ 2088.579647][ C2] ? __mutex_lock+0x33e/0xb10
[ 2088.579887][ C2] ? __mutex_lock+0x811/0xb10
[ 2088.580125][ C2] _raw_spin_lock+0x67/0x80
[ 2088.580353][ C2] __mutex_lock+0x33e/0xb10
[ 2088.580592][ C2] ? __lock_release+0x40f/0x880
[ 2088.580838][ C2] ? __pfx___lock_release+0x10/0x10
[ 2088.581100][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2088.581396][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 2088.581652][ C2] ? __pfx___up_read+0x10/0x10
[ 2088.581894][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 2088.582161][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 2088.582429][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 2088.582717][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2088.583011][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 2088.583294][ C2] __tcf_action_put+0x3d/0xf0
[ 2088.583536][ C2] tcf_action_destroy+0x43/0x130
[ 2088.583787][ C2] tcf_exts_destroy+0x3c/0xb0
[ 2088.584026][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 2088.584344][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 2088.584616][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 2088.584914][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 2088.585206][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 2088.585490][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 2088.585799][ C2] ? __lock_release+0x40f/0x880
[ 2088.586046][ C2] ? __mutex_lock+0x26e/0xb10
[ 2088.586285][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 2088.586565][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 2088.586871][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 2088.587173][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 2088.587419][ C2] tcf_chain_flush+0x1e0/0x320
[ 2088.587660][ C2] __tcf_block_put+0x113/0x270
[ 2088.587902][ C2] tcf_block_put+0xaf/0xf0
[ 2088.588127][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 2088.588390][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 2088.588660][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 2088.588932][ C2] __qdisc_destroy+0xee/0x340
[ 2088.589171][ C2] dev_shutdown+0x164/0x350
[ 2088.589400][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 2088.589720][ C2] ? mutex_is_locked+0x17/0x50
[ 2088.589959][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 2088.590297][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 2088.590621][ C2] default_device_exit_batch+0x234/0x2d0
[ 2088.590902][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 2088.591211][ C2] ? ops_exit_list+0xb4/0x170
[ 2088.591449][ C2] cleanup_net+0x4f3/0xb60
[ 2088.591673][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 2088.591956][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 2088.592211][ C2] ? lock_acquire+0x1c1/0x220
[ 2088.592446][ C2] ? process_one_work+0x714/0x1310
[ 2088.592707][ C2] process_one_work+0x78c/0x1310
[ 2088.592958][ C2] ? hlock_class+0x4e/0x130
[ 2088.593187][ C2] ? __pfx_process_one_work+0x10/0x10
[ 2088.593458][ C2] ? assign_work+0x16c/0x240
[ 2088.593692][ C2] worker_thread+0x73d/0x1010
[ 2088.593933][ C2] ? __pfx_worker_thread+0x10/0x10
[ 2088.594191][ C2] kthread+0x28f/0x360
[ 2088.594396][ C2] ? __pfx_kthread+0x10/0x10
[ 2088.594630][ C2] ret_from_fork+0x31/0x70
[ 2088.594854][ C2] ? __pfx_kthread+0x10/0x10
[ 2088.595088][ C2] ret_from_fork_asm+0x1b/0x30
[ 2088.595336][ C2]
[ 2108.632936][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 2108.633293][ C2] rcu: 2-....: (1973891 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=492046
[ 2108.633832][ C2] rcu: (t=1976880 jiffies g=119533 q=6117 ncpus=4)
[ 2108.634160][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 2108.634626][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 2108.635230][ C2] Workqueue: netns cleanup_net
[ 2108.635475][ C2] RIP: 0010:kasan_report+0xe1/0xf0
[ 2108.635735][ C2] Code: 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd ff ff ff 34 24 9d 48 83 c4 70 44 89 e0 5b 5d 41 5c 41 5d 41 5e <41> 5f c3 cc cc cc cc 45 31 e4 eb e1 0f 1f 00 90 90 90 90 90 90 90
[ 2108.636690][ C2] RSP: 0018:ffffc900000bf280 EFLAGS: 00000282
[ 2108.636995][ C2] RAX: 0000000000000000 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 2108.637387][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 2108.637778][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 2108.638177][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 2108.638570][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: ffff888001c02640
[ 2108.638963][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 2108.639405][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2108.639732][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 2108.640130][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2108.640531][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2108.640924][ C2] PKRU: 55555554
[ 2108.641103][ C2] Call Trace:
[ 2108.641273][ C2]
[ 2108.641419][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 2108.641690][ C2] ? print_cpu_stall+0x263/0x6a0
[ 2108.641940][ C2] ? check_cpu_stall+0x284/0x500
[ 2108.642188][ C2] ? rcu_pending+0x92/0x360
[ 2108.642418][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 2108.642685][ C2] ? update_process_times+0xb9/0x110
[ 2108.642951][ C2] ? tick_sched_handle+0x67/0x130
[ 2108.643210][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 2108.643493][ C2] ? __run_hrtimer+0x1c0/0x710
[ 2108.643730][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 2108.644039][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 2108.644310][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 2108.644594][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 2108.644856][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 2108.645160][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 2108.645419][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 2108.645725][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 2108.646017][ C2]
[ 2108.646168][ C2]
[ 2108.646315][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 2108.646631][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 2108.646920][ C2] ? kasan_report+0xe1/0xf0
[ 2108.647148][ C2] kasan_check_range+0x39/0x1c0
[ 2108.647397][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 2108.647675][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 2108.647984][ C2] ? __pfx___schedule+0x10/0x10
[ 2108.648230][ C2] do_raw_spin_lock+0x1ec/0x270
[ 2108.648480][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 2108.648747][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 2108.649030][ C2] ? lock_acquire+0x1c1/0x220
[ 2108.649265][ C2] ? __mutex_lock+0x33e/0xb10
[ 2108.649503][ C2] ? __mutex_lock+0x811/0xb10
[ 2108.649740][ C2] _raw_spin_lock+0x67/0x80
[ 2108.649970][ C2] __mutex_lock+0x33e/0xb10
[ 2108.650197][ C2] ? __lock_release+0x40f/0x880
[ 2108.650449][ C2] ? __pfx___lock_release+0x10/0x10
[ 2108.650709][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2108.651005][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 2108.651258][ C2] ? __pfx___up_read+0x10/0x10
[ 2108.651505][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 2108.651771][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 2108.652039][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 2108.652328][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2108.652624][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 2108.652908][ C2] __tcf_action_put+0x3d/0xf0
[ 2108.653146][ C2] tcf_action_destroy+0x43/0x130
[ 2108.653396][ C2] tcf_exts_destroy+0x3c/0xb0
[ 2108.653638][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 2108.653957][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 2108.654227][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 2108.654526][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 2108.654816][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 2108.655101][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 2108.655409][ C2] ? __lock_release+0x40f/0x880
[ 2108.655655][ C2] ? __mutex_lock+0x26e/0xb10
[ 2108.655893][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 2108.656173][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 2108.656480][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 2108.656781][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 2108.657028][ C2] tcf_chain_flush+0x1e0/0x320
[ 2108.657270][ C2] __tcf_block_put+0x113/0x270
[ 2108.657510][ C2] tcf_block_put+0xaf/0xf0
[ 2108.657736][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 2108.657995][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 2108.658265][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 2108.658537][ C2] __qdisc_destroy+0xee/0x340
[ 2108.658777][ C2] dev_shutdown+0x164/0x350
[ 2108.659008][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 2108.659329][ C2] ? mutex_is_locked+0x17/0x50
[ 2108.659570][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 2108.659907][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 2108.660222][ C2] default_device_exit_batch+0x234/0x2d0
[ 2108.660512][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 2108.660822][ C2] ? ops_exit_list+0xb4/0x170
[ 2108.661060][ C2] cleanup_net+0x4f3/0xb60
[ 2108.661285][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 2108.661567][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 2108.661818][ C2] ? lock_acquire+0x1c1/0x220
[ 2108.662054][ C2] ? process_one_work+0x714/0x1310
[ 2108.662314][ C2] process_one_work+0x78c/0x1310
[ 2108.662566][ C2] ? hlock_class+0x4e/0x130
[ 2108.662794][ C2] ? __pfx_process_one_work+0x10/0x10
[ 2108.663066][ C2] ? assign_work+0x16c/0x240
[ 2108.663298][ C2] worker_thread+0x73d/0x1010
[ 2108.663545][ C2] ? __pfx_worker_thread+0x10/0x10
[ 2108.663802][ C2] kthread+0x28f/0x360
[ 2108.664008][ C2] ? __pfx_kthread+0x10/0x10
[ 2108.664241][ C2] ret_from_fork+0x31/0x70
[ 2108.664466][ C2] ? __pfx_kthread+0x10/0x10
[ 2108.664698][ C2] ret_from_fork_asm+0x1b/0x30
[ 2108.664947][ C2]
[ 2131.271967][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 1999213 jiffies s: 4309 root: 0x4/.
[ 2131.272607][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 2131.272972][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 2131.273244][ C2] NMI backtrace for cpu 2
[ 2131.273252][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 2131.273256][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 2131.273260][ C2] Workqueue: netns cleanup_net
[ 2131.273268][ C2] RIP: 0010:kasan_report+0x16/0xf0
[ 2131.273275][ C2] Code: 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 <0f> 01 ca 65 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 85 c0 0f
[ 2131.273279][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000282
[ 2131.273281][ C2] RAX: 00000000000000fb RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 2131.273283][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 2131.273285][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 2131.273287][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 2131.273289][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 2131.273291][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 2131.273293][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2131.273296][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 2131.273298][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2131.273300][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2131.273302][ C2] PKRU: 55555554
[ 2131.273303][ C2] Call Trace:
[ 2131.273307][ C2]
[ 2131.273310][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 2131.273316][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 2131.273321][ C2] ? nmi_handle+0x153/0x420
[ 2131.273328][ C2] ? default_do_nmi+0x41/0x100
[ 2131.273333][ C2] ? exc_nmi+0xf3/0x120
[ 2131.273336][ C2] ? end_repeat_nmi+0xf/0x60
[ 2131.273341][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 2131.273347][ C2] ? kasan_report+0x16/0xf0
[ 2131.273350][ C2] ? kasan_report+0x16/0xf0
[ 2131.273353][ C2] ? kasan_report+0x16/0xf0
[ 2131.273356][ C2]
[ 2131.273357][ C2]
[ 2131.273361][ C2] queued_spin_lock_slowpath+0xa0c/0xb90
[ 2131.273365][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 2131.273370][ C2] ? __pfx___schedule+0x10/0x10
[ 2131.273375][ C2] do_raw_spin_lock+0x1ec/0x270
[ 2131.273382][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 2131.273385][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 2131.273389][ C2] ? lock_acquire+0x1c1/0x220
[ 2131.273391][ C2] ? __mutex_lock+0x33e/0xb10
[ 2131.273396][ C2] ? __mutex_lock+0x811/0xb10
[ 2131.273398][ C2] _raw_spin_lock+0x67/0x80
[ 2131.273402][ C2] __mutex_lock+0x33e/0xb10
[ 2131.273405][ C2] ? __lock_release+0x40f/0x880
[ 2131.273408][ C2] ? __pfx___lock_release+0x10/0x10
[ 2131.273411][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2131.273418][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 2131.273421][ C2] ? __pfx___up_read+0x10/0x10
[ 2131.273425][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 2131.273428][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 2131.273433][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 2131.273439][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2131.273442][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 2131.273447][ C2] __tcf_action_put+0x3d/0xf0
[ 2131.273451][ C2] tcf_action_destroy+0x43/0x130
[ 2131.273455][ C2] tcf_exts_destroy+0x3c/0xb0
[ 2131.273458][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 2131.273469][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 2131.273479][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 2131.273487][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 2131.273496][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 2131.273505][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 2131.273512][ C2] ? __lock_release+0x40f/0x880
[ 2131.273516][ C2] ? __mutex_lock+0x26e/0xb10
[ 2131.273520][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 2131.273529][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 2131.273537][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 2131.273541][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 2131.273546][ C2] tcf_chain_flush+0x1e0/0x320
[ 2131.273550][ C2] __tcf_block_put+0x113/0x270
[ 2131.273554][ C2] tcf_block_put+0xaf/0xf0
[ 2131.273557][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 2131.273560][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 2131.273567][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 2131.273574][ C2] __qdisc_destroy+0xee/0x340
[ 2131.273578][ C2] dev_shutdown+0x164/0x350
[ 2131.273582][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 2131.273588][ C2] ? mutex_is_locked+0x17/0x50
[ 2131.273591][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 2131.273593][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 2131.273598][ C2] default_device_exit_batch+0x234/0x2d0
[ 2131.273601][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 2131.273604][ C2] ? ops_exit_list+0xb4/0x170
[ 2131.273607][ C2] cleanup_net+0x4f3/0xb60
[ 2131.273610][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 2131.273612][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 2131.273616][ C2] ? lock_acquire+0x1c1/0x220
[ 2131.273618][ C2] ? process_one_work+0x714/0x1310
[ 2131.273622][ C2] process_one_work+0x78c/0x1310
[ 2131.273627][ C2] ? hlock_class+0x4e/0x130
[ 2131.273630][ C2] ? __pfx_process_one_work+0x10/0x10
[ 2131.273634][ C2] ? assign_work+0x16c/0x240
[ 2131.273637][ C2] worker_thread+0x73d/0x1010
[ 2131.273642][ C2] ? __pfx_worker_thread+0x10/0x10
[ 2131.273645][ C2] kthread+0x28f/0x360
[ 2131.273648][ C2] ? __pfx_kthread+0x10/0x10
[ 2131.273650][ C2] ret_from_fork+0x31/0x70
[ 2131.273653][ C2] ? __pfx_kthread+0x10/0x10
[ 2131.273656][ C2] ret_from_fork_asm+0x1b/0x30
[ 2131.273665][ C2]
[ 2156.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1889s! [kworker/u8:0:11]
[ 2156.564083][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 2156.564498][ C2] irq event stamp: 753065
[ 2156.564713][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 2156.565181][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 2156.565648][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 2156.566110][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 2156.566568][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 2156.567039][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 2156.567646][ C2] Workqueue: netns cleanup_net
[ 2156.567890][ C2] RIP: 0010:kasan_check_range+0xf4/0x1c0
[ 2156.568176][ C2] Code: ed 48 8d 50 08 eb 09 48 83 c0 01 48 39 c2 74 2c 80 38 00 74 f2 48 89 c2 b8 01 00 00 00 48 85 d2 0f 84 4c ff ff ff 41 83 e2 07 <49> 39 d1 0f 85 34 ff ff ff 45 3a 11 0f 8d 2b ff ff ff 5b b8 01 00
[ 2156.569134][ C2] RSP: 0018:ffffc900000bf290 EFLAGS: 00000206
[ 2156.569437][ C2] RAX: 0000000000000001 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 2156.569831][ C2] RDX: ffffed100701fa01 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 2156.570235][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 2156.570632][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 2156.571026][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 2156.571420][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 2156.571860][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2156.572189][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 2156.572584][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2156.572977][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2156.573373][ C2] PKRU: 55555554
[ 2156.573551][ C2] Call Trace:
[ 2156.573720][ C2]
[ 2156.573868][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 2156.574131][ C2] ? __run_hrtimer+0x1c0/0x710
[ 2156.574371][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 2156.574648][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 2156.574918][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 2156.575202][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 2156.575468][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 2156.575770][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 2156.576030][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 2156.576344][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 2156.576637][ C2]
[ 2156.576785][ C2]
[ 2156.576934][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 2156.577247][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 2156.577536][ C2] ? kasan_check_range+0xf4/0x1c0
[ 2156.577790][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 2156.578069][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 2156.578380][ C2] ? __pfx___schedule+0x10/0x10
[ 2156.578628][ C2] do_raw_spin_lock+0x1ec/0x270
[ 2156.578877][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 2156.579147][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 2156.579429][ C2] ? lock_acquire+0x1c1/0x220
[ 2156.579664][ C2] ? __mutex_lock+0x33e/0xb10
[ 2156.579902][ C2] ? __mutex_lock+0x811/0xb10
[ 2156.580140][ C2] _raw_spin_lock+0x67/0x80
[ 2156.580378][ C2] __mutex_lock+0x33e/0xb10
[ 2156.580607][ C2] ? __lock_release+0x40f/0x880
[ 2156.580853][ C2] ? __pfx___lock_release+0x10/0x10
[ 2156.581115][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2156.581410][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 2156.581664][ C2] ? __pfx___up_read+0x10/0x10
[ 2156.581909][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 2156.582180][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 2156.582449][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 2156.582738][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2156.583034][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 2156.583319][ C2] __tcf_action_put+0x3d/0xf0
[ 2156.583560][ C2] tcf_action_destroy+0x43/0x130
[ 2156.583811][ C2] tcf_exts_destroy+0x3c/0xb0
[ 2156.584052][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 2156.584371][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 2156.584646][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 2156.584945][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 2156.585238][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 2156.585523][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 2156.585833][ C2] ? __lock_release+0x40f/0x880
[ 2156.586080][ C2] ? __mutex_lock+0x26e/0xb10
[ 2156.586320][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 2156.586600][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 2156.586906][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 2156.587211][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 2156.587461][ C2] tcf_chain_flush+0x1e0/0x320
[ 2156.587701][ C2] __tcf_block_put+0x113/0x270
[ 2156.587944][ C2] tcf_block_put+0xaf/0xf0
[ 2156.588171][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 2156.588432][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 2156.588701][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 2156.588975][ C2] __qdisc_destroy+0xee/0x340
[ 2156.589215][ C2] dev_shutdown+0x164/0x350
[ 2156.589445][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 2156.589764][ C2] ? mutex_is_locked+0x17/0x50
[ 2156.590005][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 2156.590350][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 2156.590665][ C2] default_device_exit_batch+0x234/0x2d0
[ 2156.590947][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 2156.591257][ C2] ? ops_exit_list+0xb4/0x170
[ 2156.591496][ C2] cleanup_net+0x4f3/0xb60
[ 2156.591719][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 2156.592006][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 2156.592257][ C2] ? lock_acquire+0x1c1/0x220
[ 2156.592495][ C2] ? process_one_work+0x714/0x1310
[ 2156.592756][ C2] process_one_work+0x78c/0x1310
[ 2156.593008][ C2] ? hlock_class+0x4e/0x130
[ 2156.593238][ C2] ? __pfx_process_one_work+0x10/0x10
[ 2156.593508][ C2] ? assign_work+0x16c/0x240
[ 2156.593743][ C2] worker_thread+0x73d/0x1010
[ 2156.593985][ C2] ? __pfx_worker_thread+0x10/0x10
[ 2156.594247][ C2] kthread+0x28f/0x360
[ 2156.594454][ C2] ? __pfx_kthread+0x10/0x10
[ 2156.594688][ C2] ret_from_fork+0x31/0x70
[ 2156.594911][ C2] ? __pfx_kthread+0x10/0x10
[ 2156.595151][ C2] ret_from_fork_asm+0x1b/0x30
[ 2156.595399][ C2]
[ 2184.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1915s! [kworker/u8:0:11]
[ 2184.564083][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 2184.564501][ C2] irq event stamp: 753065
[ 2184.564716][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 2184.565185][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 2184.565651][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 2184.566120][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 2184.566578][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 2184.567052][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 2184.567660][ C2] Workqueue: netns cleanup_net
[ 2184.567906][ C2] RIP: 0010:kasan_report+0x19/0xf0
[ 2184.568169][ C2] Code: 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca <65> 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 85 c0 0f 85 b7 00
[ 2184.569134][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 2184.569439][ C2] RAX: 0000000000000001 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 2184.569833][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 2184.570241][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 2184.570637][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 2184.571034][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 2184.571429][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 2184.571872][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2184.572204][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 2184.572603][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2184.572999][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2184.573392][ C2] PKRU: 55555554
[ 2184.573573][ C2] Call Trace:
[ 2184.573744][ C2]
[ 2184.573891][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 2184.574153][ C2] ? __run_hrtimer+0x1c0/0x710
[ 2184.574397][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 2184.574672][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 2184.574944][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 2184.575230][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 2184.575494][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 2184.575799][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 2184.576060][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 2184.576367][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 2184.576661][ C2]
[ 2184.576810][ C2]
[ 2184.576960][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 2184.577274][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 2184.577562][ C2] ? kasan_report+0x19/0xf0
[ 2184.577793][ C2] kasan_check_range+0x39/0x1c0
[ 2184.578043][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 2184.578323][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 2184.578632][ C2] ? __pfx___schedule+0x10/0x10
[ 2184.578880][ C2] do_raw_spin_lock+0x1ec/0x270
[ 2184.579130][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 2184.579400][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 2184.579683][ C2] ? lock_acquire+0x1c1/0x220
[ 2184.579922][ C2] ? __mutex_lock+0x33e/0xb10
[ 2184.580167][ C2] ? __mutex_lock+0x811/0xb10
[ 2184.580405][ C2] _raw_spin_lock+0x67/0x80
[ 2184.580636][ C2] __mutex_lock+0x33e/0xb10
[ 2184.580864][ C2] ? __lock_release+0x40f/0x880
[ 2184.581112][ C2] ? __pfx___lock_release+0x10/0x10
[ 2184.581372][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2184.581670][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 2184.581924][ C2] ? __pfx___up_read+0x10/0x10
[ 2184.582175][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 2184.582441][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 2184.582710][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 2184.583003][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2184.583294][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 2184.583581][ C2] __tcf_action_put+0x3d/0xf0
[ 2184.583822][ C2] tcf_action_destroy+0x43/0x130
[ 2184.584075][ C2] tcf_exts_destroy+0x3c/0xb0
[ 2184.584313][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 2184.584632][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 2184.584904][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 2184.585205][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 2184.585497][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 2184.585789][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 2184.586106][ C2] ? __lock_release+0x40f/0x880
[ 2184.586352][ C2] ? __mutex_lock+0x26e/0xb10
[ 2184.586590][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 2184.586872][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 2184.587178][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 2184.587482][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 2184.587731][ C2] tcf_chain_flush+0x1e0/0x320
[ 2184.587976][ C2] __tcf_block_put+0x113/0x270
[ 2184.588219][ C2] tcf_block_put+0xaf/0xf0
[ 2184.588445][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 2184.588709][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 2184.588983][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 2184.589261][ C2] __qdisc_destroy+0xee/0x340
[ 2184.589499][ C2] dev_shutdown+0x164/0x350
[ 2184.589733][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 2184.590065][ C2] ? mutex_is_locked+0x17/0x50
[ 2184.590311][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 2184.590651][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 2184.590970][ C2] default_device_exit_batch+0x234/0x2d0
[ 2184.591257][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 2184.591568][ C2] ? ops_exit_list+0xb4/0x170
[ 2184.591808][ C2] cleanup_net+0x4f3/0xb60
[ 2184.592038][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 2184.592322][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 2184.592574][ C2] ? lock_acquire+0x1c1/0x220
[ 2184.592815][ C2] ? process_one_work+0x714/0x1310
[ 2184.593080][ C2] process_one_work+0x78c/0x1310
[ 2184.593334][ C2] ? hlock_class+0x4e/0x130
[ 2184.593564][ C2] ? __pfx_process_one_work+0x10/0x10
[ 2184.593839][ C2] ? assign_work+0x16c/0x240
[ 2184.594073][ C2] worker_thread+0x73d/0x1010
[ 2184.594315][ C2] ? __pfx_worker_thread+0x10/0x10
[ 2184.594574][ C2] kthread+0x28f/0x360
[ 2184.594780][ C2] ? __pfx_kthread+0x10/0x10
[ 2184.595016][ C2] ret_from_fork+0x31/0x70
[ 2184.595242][ C2] ? __pfx_kthread+0x10/0x10
[ 2184.595474][ C2] ret_from_fork_asm+0x1b/0x30
[ 2184.595723][ C2]
[ 2186.665937][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 2186.666286][ C2] rcu: 2-....: (2051805 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=511405
[ 2186.666827][ C2] rcu: (t=2054913 jiffies g=119533 q=6117 ncpus=4)
[ 2186.667157][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 2186.667627][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 2186.668232][ C2] Workqueue: netns cleanup_net
[ 2186.668475][ C2] RIP: 0010:kasan_report+0x22/0xf0
[ 2186.668733][ C2] Code: 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca 65 4c 8b 3c 25 80 b8 1f 00 <41> 8b 87 e0 17 00 00 85 c0 0f 85 b7 00 00 00 48 89 fd 49 89 f6 89
[ 2186.669690][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 2186.669996][ C2] RAX: 0000000000000001 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 2186.670394][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 2186.670795][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 2186.671192][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 2186.671587][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: ffff888001c02640
[ 2186.671982][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 2186.672426][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2186.672759][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 2186.673160][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2186.673555][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2186.673952][ C2] PKRU: 55555554
[ 2186.674131][ C2] Call Trace:
[ 2186.674302][ C2]
[ 2186.674449][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 2186.674723][ C2] ? print_cpu_stall+0x263/0x6a0
[ 2186.674976][ C2] ? check_cpu_stall+0x284/0x500
[ 2186.675228][ C2] ? rcu_pending+0x92/0x360
[ 2186.675461][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 2186.675731][ C2] ? update_process_times+0xb9/0x110
[ 2186.675999][ C2] ? tick_sched_handle+0x67/0x130
[ 2186.676254][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 2186.676540][ C2] ? __run_hrtimer+0x1c0/0x710
[ 2186.676784][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 2186.677096][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 2186.677369][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 2186.677656][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 2186.677921][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 2186.678229][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 2186.678489][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 2186.678798][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 2186.679095][ C2]
[ 2186.679246][ C2]
[ 2186.679395][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 2186.679710][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 2186.680003][ C2] ? kasan_report+0x22/0xf0
[ 2186.680243][ C2] kasan_check_range+0x39/0x1c0
[ 2186.680494][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 2186.680776][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 2186.681090][ C2] ? __pfx___schedule+0x10/0x10
[ 2186.681339][ C2] do_raw_spin_lock+0x1ec/0x270
[ 2186.681589][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 2186.681862][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 2186.682147][ C2] ? lock_acquire+0x1c1/0x220
[ 2186.682386][ C2] ? __mutex_lock+0x33e/0xb10
[ 2186.682623][ C2] ? __mutex_lock+0x811/0xb10
[ 2186.682861][ C2] _raw_spin_lock+0x67/0x80
[ 2186.683092][ C2] __mutex_lock+0x33e/0xb10
[ 2186.683322][ C2] ? __lock_release+0x40f/0x880
[ 2186.683567][ C2] ? __pfx___lock_release+0x10/0x10
[ 2186.683830][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2186.684126][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 2186.684380][ C2] ? __pfx___up_read+0x10/0x10
[ 2186.684623][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 2186.684889][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 2186.685157][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 2186.685449][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2186.685741][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 2186.686028][ C2] __tcf_action_put+0x3d/0xf0
[ 2186.686269][ C2] tcf_action_destroy+0x43/0x130
[ 2186.686521][ C2] tcf_exts_destroy+0x3c/0xb0
[ 2186.686760][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 2186.687081][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 2186.687352][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 2186.687653][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 2186.687950][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 2186.688238][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 2186.688550][ C2] ? __lock_release+0x40f/0x880
[ 2186.688797][ C2] ? __mutex_lock+0x26e/0xb10
[ 2186.689042][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 2186.689326][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 2186.689631][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 2186.689937][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 2186.690194][ C2] tcf_chain_flush+0x1e0/0x320
[ 2186.690440][ C2] __tcf_block_put+0x113/0x270
[ 2186.690686][ C2] tcf_block_put+0xaf/0xf0
[ 2186.690912][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 2186.691174][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 2186.691445][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 2186.691723][ C2] __qdisc_destroy+0xee/0x340
[ 2186.691963][ C2] dev_shutdown+0x164/0x350
[ 2186.692197][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 2186.692519][ C2] ? mutex_is_locked+0x17/0x50
[ 2186.692763][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 2186.693103][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 2186.693421][ C2] default_device_exit_batch+0x234/0x2d0
[ 2186.693706][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 2186.694018][ C2] ? ops_exit_list+0xb4/0x170
[ 2186.694259][ C2] cleanup_net+0x4f3/0xb60
[ 2186.694486][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 2186.694770][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 2186.695022][ C2] ? lock_acquire+0x1c1/0x220
[ 2186.695261][ C2] ? process_one_work+0x714/0x1310
[ 2186.695521][ C2] process_one_work+0x78c/0x1310
[ 2186.695774][ C2] ? hlock_class+0x4e/0x130
[ 2186.696009][ C2] ? __pfx_process_one_work+0x10/0x10
[ 2186.696284][ C2] ? assign_work+0x16c/0x240
[ 2186.696517][ C2] worker_thread+0x73d/0x1010
[ 2186.696760][ C2] ? __pfx_worker_thread+0x10/0x10
[ 2186.697019][ C2] kthread+0x28f/0x360
[ 2186.697227][ C2] ? __pfx_kthread+0x10/0x10
[ 2186.697462][ C2] ret_from_fork+0x31/0x70
[ 2186.697689][ C2] ? __pfx_kthread+0x10/0x10
[ 2186.697921][ C2] ret_from_fork_asm+0x1b/0x30
[ 2186.698171][ C2]
[ 2212.563631][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1941s! [kworker/u8:0:11]
[ 2212.564086][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 2212.564499][ C2] irq event stamp: 753065
[ 2212.564715][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 2212.565187][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 2212.565653][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 2212.566118][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 2212.566578][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 2212.567047][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 2212.567650][ C2] Workqueue: netns cleanup_net
[ 2212.567894][ C2] RIP: 0010:kasan_report+0x19/0xf0
[ 2212.568155][ C2] Code: 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca <65> 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00 85 c0 0f 85 b7 00
[ 2212.569112][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286
[ 2212.569416][ C2] RAX: 0000000000000001 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 2212.569808][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 2212.570208][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 2212.570604][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 2212.570998][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 2212.571391][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 2212.571830][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2212.572158][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 2212.572555][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2212.572949][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2212.573342][ C2] PKRU: 55555554
[ 2212.573526][ C2] Call Trace:
[ 2212.573696][ C2]
[ 2212.573842][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 2212.574103][ C2] ? __run_hrtimer+0x1c0/0x710
[ 2212.574345][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 2212.574617][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 2212.574887][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 2212.575173][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 2212.575435][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 2212.575738][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 2212.575998][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 2212.576306][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 2212.576595][ C2]
[ 2212.576746][ C2]
[ 2212.576894][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 2212.577210][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 2212.577496][ C2] ? kasan_report+0x19/0xf0
[ 2212.577725][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 2212.578019][ C2] ? kasan_report+0xd6/0xf0
[ 2212.578246][ C2] kasan_check_range+0x39/0x1c0
[ 2212.578494][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 2212.578773][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 2212.579082][ C2] ? __pfx___schedule+0x10/0x10
[ 2212.579328][ C2] do_raw_spin_lock+0x1ec/0x270
[ 2212.579577][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 2212.579847][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 2212.580139][ C2] ? lock_acquire+0x1c1/0x220
[ 2212.580376][ C2] ? __mutex_lock+0x33e/0xb10
[ 2212.580614][ C2] ? __mutex_lock+0x811/0xb10
[ 2212.580851][ C2] _raw_spin_lock+0x67/0x80
[ 2212.581082][ C2] __mutex_lock+0x33e/0xb10
[ 2212.581312][ C2] ? __lock_release+0x40f/0x880
[ 2212.581559][ C2] ? __pfx___lock_release+0x10/0x10
[ 2212.581822][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2212.582124][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 2212.582377][ C2] ? __pfx___up_read+0x10/0x10
[ 2212.582622][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 2212.582891][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 2212.583161][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 2212.583452][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2212.583743][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 2212.584031][ C2] __tcf_action_put+0x3d/0xf0
[ 2212.584271][ C2] tcf_action_destroy+0x43/0x130
[ 2212.584521][ C2] tcf_exts_destroy+0x3c/0xb0
[ 2212.584760][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 2212.585080][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 2212.585351][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 2212.585649][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 2212.585940][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 2212.586225][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 2212.586539][ C2] ? __lock_release+0x40f/0x880
[ 2212.586786][ C2] ? __mutex_lock+0x26e/0xb10
[ 2212.587024][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 2212.587304][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 2212.587612][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 2212.587914][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 2212.588161][ C2] tcf_chain_flush+0x1e0/0x320
[ 2212.588404][ C2] __tcf_block_put+0x113/0x270
[ 2212.588647][ C2] tcf_block_put+0xaf/0xf0
[ 2212.588870][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 2212.589128][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 2212.589398][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 2212.589675][ C2] __qdisc_destroy+0xee/0x340
[ 2212.589919][ C2] dev_shutdown+0x164/0x350
[ 2212.590155][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 2212.590477][ C2] ? mutex_is_locked+0x17/0x50
[ 2212.590719][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 2212.591057][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 2212.591373][ C2] default_device_exit_batch+0x234/0x2d0
[ 2212.591658][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 2212.591967][ C2] ? ops_exit_list+0xb4/0x170
[ 2212.592208][ C2] cleanup_net+0x4f3/0xb60
[ 2212.592435][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 2212.592717][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 2212.592971][ C2] ? lock_acquire+0x1c1/0x220
[ 2212.593207][ C2] ? process_one_work+0x714/0x1310
[ 2212.593467][ C2] process_one_work+0x78c/0x1310
[ 2212.593720][ C2] ? hlock_class+0x4e/0x130
[ 2212.593951][ C2] ? __pfx_process_one_work+0x10/0x10
[ 2212.594226][ C2] ? assign_work+0x16c/0x240
[ 2212.594457][ C2] worker_thread+0x73d/0x1010
[ 2212.594700][ C2] ? __pfx_worker_thread+0x10/0x10
[ 2212.594958][ C2] kthread+0x28f/0x360
[ 2212.595167][ C2] ? __pfx_kthread+0x10/0x10
[ 2212.595399][ C2] ret_from_fork+0x31/0x70
[ 2212.595626][ C2] ? __pfx_kthread+0x10/0x10
[ 2212.595858][ C2] ret_from_fork_asm+0x1b/0x30
[ 2212.596111][ C2]
[ 2229.575969][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 2097517 jiffies s: 4309 root: 0x4/.
[ 2229.576605][ T8] rcu: blocking rcu_node structures (internal RCU debug):
[ 2229.576971][ T8] Sending NMI from CPU 0 to CPUs 2:
[ 2229.577243][ C2] NMI backtrace for cpu 2
[ 2229.577250][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 2229.577255][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 2229.577258][ C2] Workqueue: netns cleanup_net
[ 2229.577266][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 2229.577273][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 2229.577276][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 2229.577279][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 2229.577281][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 2229.577282][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 2229.577284][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 2229.577286][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 2229.577288][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 2229.577290][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2229.577294][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 2229.577297][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2229.577298][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2229.577300][ C2] PKRU: 55555554
[ 2229.577301][ C2] Call Trace:
[ 2229.577304][ C2]
[ 2229.577307][ C2] ? nmi_cpu_backtrace+0x112/0x220
[ 2229.577313][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20
[ 2229.577318][ C2] ? nmi_handle+0x153/0x420
[ 2229.577325][ C2] ? default_do_nmi+0x41/0x100
[ 2229.577329][ C2] ? exc_nmi+0xf3/0x120
[ 2229.577332][ C2] ? end_repeat_nmi+0xf/0x60
[ 2229.577337][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 2229.577341][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 2229.577344][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 2229.577348][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 2229.577351][ C2]
[ 2229.577352][ C2]
[ 2229.577353][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 2229.577357][ C2] ? __pfx___schedule+0x10/0x10
[ 2229.577363][ C2] do_raw_spin_lock+0x1ec/0x270
[ 2229.577369][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 2229.577372][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 2229.577375][ C2] ? lock_acquire+0x1c1/0x220
[ 2229.577378][ C2] ? __mutex_lock+0x33e/0xb10
[ 2229.577382][ C2] ? __mutex_lock+0x811/0xb10
[ 2229.577385][ C2] _raw_spin_lock+0x67/0x80
[ 2229.577388][ C2] __mutex_lock+0x33e/0xb10
[ 2229.577392][ C2] ? __lock_release+0x40f/0x880
[ 2229.577395][ C2] ? __pfx___lock_release+0x10/0x10
[ 2229.577397][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2229.577403][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 2229.577406][ C2] ? __pfx___up_read+0x10/0x10
[ 2229.577411][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 2229.577414][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 2229.577419][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 2229.577425][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2229.577428][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 2229.577433][ C2] __tcf_action_put+0x3d/0xf0
[ 2229.577437][ C2] tcf_action_destroy+0x43/0x130
[ 2229.577441][ C2] tcf_exts_destroy+0x3c/0xb0
[ 2229.577445][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 2229.577457][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 2229.577465][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 2229.577474][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 2229.577483][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 2229.577493][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 2229.577500][ C2] ? __lock_release+0x40f/0x880
[ 2229.577504][ C2] ? __mutex_lock+0x26e/0xb10
[ 2229.577509][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 2229.577518][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 2229.577526][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 2229.577531][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 2229.577536][ C2] tcf_chain_flush+0x1e0/0x320
[ 2229.577540][ C2] __tcf_block_put+0x113/0x270
[ 2229.577544][ C2] tcf_block_put+0xaf/0xf0
[ 2229.577547][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 2229.577551][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 2229.577558][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 2229.577565][ C2] __qdisc_destroy+0xee/0x340
[ 2229.577569][ C2] dev_shutdown+0x164/0x350
[ 2229.577572][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 2229.577577][ C2] ? mutex_is_locked+0x17/0x50
[ 2229.577580][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 2229.577583][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 2229.577587][ C2] default_device_exit_batch+0x234/0x2d0
[ 2229.577591][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 2229.577594][ C2] ? ops_exit_list+0xb4/0x170
[ 2229.577597][ C2] cleanup_net+0x4f3/0xb60
[ 2229.577600][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 2229.577603][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 2229.577606][ C2] ? lock_acquire+0x1c1/0x220
[ 2229.577608][ C2] ? process_one_work+0x714/0x1310
[ 2229.577613][ C2] process_one_work+0x78c/0x1310
[ 2229.577617][ C2] ? hlock_class+0x4e/0x130
[ 2229.577620][ C2] ? __pfx_process_one_work+0x10/0x10
[ 2229.577625][ C2] ? assign_work+0x16c/0x240
[ 2229.577628][ C2] worker_thread+0x73d/0x1010
[ 2229.577633][ C2] ? __pfx_worker_thread+0x10/0x10
[ 2229.577636][ C2] kthread+0x28f/0x360
[ 2229.577638][ C2] ? __pfx_kthread+0x10/0x10
[ 2229.577641][ C2] ret_from_fork+0x31/0x70
[ 2229.577645][ C2] ? __pfx_kthread+0x10/0x10
[ 2229.577647][ C2] ret_from_fork_asm+0x1b/0x30
[ 2229.577655][ C2]
[ 2256.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 1982s! [kworker/u8:0:11]
[ 2256.564081][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 2256.564493][ C2] irq event stamp: 753065
[ 2256.564713][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 2256.565180][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 2256.565645][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 2256.566111][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 2256.566572][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 2256.567040][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 2256.567647][ C2] Workqueue: netns cleanup_net
[ 2256.567892][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 2256.568215][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 2256.569175][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 2256.569479][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 2256.569882][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 2256.570278][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 2256.570671][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 2256.571075][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 2256.571469][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 2256.571911][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2256.572241][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 2256.572635][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2256.573034][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2256.573426][ C2] PKRU: 55555554
[ 2256.573607][ C2] Call Trace:
[ 2256.573781][ C2]
[ 2256.573930][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 2256.574193][ C2] ? __run_hrtimer+0x1c0/0x710
[ 2256.574436][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 2256.574710][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 2256.574980][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 2256.575267][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 2256.575531][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 2256.575835][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 2256.576096][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 2256.576402][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 2256.576694][ C2]
[ 2256.576842][ C2]
[ 2256.576993][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 2256.577307][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 2256.577598][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 2256.577892][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 2256.578204][ C2] ? __pfx___schedule+0x10/0x10
[ 2256.578451][ C2] do_raw_spin_lock+0x1ec/0x270
[ 2256.578700][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 2256.578969][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 2256.579249][ C2] ? lock_acquire+0x1c1/0x220
[ 2256.579488][ C2] ? __mutex_lock+0x33e/0xb10
[ 2256.579735][ C2] ? __mutex_lock+0x811/0xb10
[ 2256.579973][ C2] _raw_spin_lock+0x67/0x80
[ 2256.580201][ C2] __mutex_lock+0x33e/0xb10
[ 2256.580431][ C2] ? __lock_release+0x40f/0x880
[ 2256.580677][ C2] ? __pfx___lock_release+0x10/0x10
[ 2256.580939][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2256.581233][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 2256.581486][ C2] ? __pfx___up_read+0x10/0x10
[ 2256.581728][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 2256.581993][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 2256.582266][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 2256.582554][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2256.582846][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 2256.583129][ C2] __tcf_action_put+0x3d/0xf0
[ 2256.583370][ C2] tcf_action_destroy+0x43/0x130
[ 2256.583619][ C2] tcf_exts_destroy+0x3c/0xb0
[ 2256.583857][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 2256.584174][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 2256.584446][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 2256.584741][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 2256.585035][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 2256.585316][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 2256.585624][ C2] ? __lock_release+0x40f/0x880
[ 2256.585870][ C2] ? __mutex_lock+0x26e/0xb10
[ 2256.586109][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 2256.586394][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 2256.586699][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 2256.587000][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 2256.587247][ C2] tcf_chain_flush+0x1e0/0x320
[ 2256.587489][ C2] __tcf_block_put+0x113/0x270
[ 2256.587737][ C2] tcf_block_put+0xaf/0xf0
[ 2256.587964][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 2256.588224][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 2256.588496][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 2256.588770][ C2] __qdisc_destroy+0xee/0x340
[ 2256.589012][ C2] dev_shutdown+0x164/0x350
[ 2256.589241][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 2256.589562][ C2] ? mutex_is_locked+0x17/0x50
[ 2256.589813][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 2256.590152][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 2256.590467][ C2] default_device_exit_batch+0x234/0x2d0
[ 2256.590753][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 2256.591066][ C2] ? ops_exit_list+0xb4/0x170
[ 2256.591304][ C2] cleanup_net+0x4f3/0xb60
[ 2256.591530][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 2256.591814][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 2256.592065][ C2] ? lock_acquire+0x1c1/0x220
[ 2256.592302][ C2] ? process_one_work+0x714/0x1310
[ 2256.592564][ C2] process_one_work+0x78c/0x1310
[ 2256.592816][ C2] ? hlock_class+0x4e/0x130
[ 2256.593048][ C2] ? __pfx_process_one_work+0x10/0x10
[ 2256.593320][ C2] ? assign_work+0x16c/0x240
[ 2256.593554][ C2] worker_thread+0x73d/0x1010
[ 2256.593793][ C2] ? __pfx_worker_thread+0x10/0x10
[ 2256.594053][ C2] kthread+0x28f/0x360
[ 2256.594262][ C2] ? __pfx_kthread+0x10/0x10
[ 2256.594496][ C2] ret_from_fork+0x31/0x70
[ 2256.594723][ C2] ? __pfx_kthread+0x10/0x10
[ 2256.594958][ C2] ret_from_fork_asm+0x1b/0x30
[ 2256.595205][ C2]
[ 2264.698937][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 2264.699306][ C2] rcu: 2-....: (2129718 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=530694
[ 2264.699854][ C2] rcu: (t=2132946 jiffies g=119533 q=6117 ncpus=4)
[ 2264.700186][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 2264.700652][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 2264.701260][ C2] Workqueue: netns cleanup_net
[ 2264.701508][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90
[ 2264.701833][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00
[ 2264.702790][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202
[ 2264.703095][ C2] RAX: 0000000000000000 RBX: 000000000000000b RCX: ffffffffaeeb3f0c
[ 2264.703494][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 2264.703886][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01
[ 2264.704279][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 2264.704674][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 2264.705068][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 2264.705509][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2264.705838][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 2264.706233][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2264.706629][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2264.707023][ C2] PKRU: 55555554
[ 2264.707204][ C2] Call Trace:
[ 2264.707372][ C2]
[ 2264.707521][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0
[ 2264.707793][ C2] ? print_cpu_stall+0x263/0x6a0
[ 2264.708044][ C2] ? check_cpu_stall+0x284/0x500
[ 2264.708293][ C2] ? rcu_pending+0x92/0x360
[ 2264.708521][ C2] ? rcu_sched_clock_irq+0x107/0x3f0
[ 2264.708789][ C2] ? update_process_times+0xb9/0x110
[ 2264.709059][ C2] ? tick_sched_handle+0x67/0x130
[ 2264.709314][ C2] ? tick_nohz_highres_handler+0xa7/0xd0
[ 2264.709594][ C2] ? __run_hrtimer+0x1c0/0x710
[ 2264.709841][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10
[ 2264.710151][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 2264.710420][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 2264.710707][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 2264.710971][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 2264.711274][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 2264.711539][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 2264.711842][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 2264.712137][ C2]
[ 2264.712286][ C2]
[ 2264.712436][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 2264.712749][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90
[ 2264.713040][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90
[ 2264.713334][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 2264.713643][ C2] ? __pfx___schedule+0x10/0x10
[ 2264.713891][ C2] do_raw_spin_lock+0x1ec/0x270
[ 2264.714140][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 2264.714410][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 2264.714690][ C2] ? lock_acquire+0x1c1/0x220
[ 2264.714926][ C2] ? __mutex_lock+0x33e/0xb10
[ 2264.715167][ C2] ? __mutex_lock+0x811/0xb10
[ 2264.715403][ C2] _raw_spin_lock+0x67/0x80
[ 2264.715631][ C2] __mutex_lock+0x33e/0xb10
[ 2264.715860][ C2] ? __lock_release+0x40f/0x880
[ 2264.716106][ C2] ? __pfx___lock_release+0x10/0x10
[ 2264.716370][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2264.716663][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 2264.716916][ C2] ? __pfx___up_read+0x10/0x10
[ 2264.717159][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 2264.717427][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 2264.717698][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 2264.717986][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2264.718279][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 2264.718562][ C2] __tcf_action_put+0x3d/0xf0
[ 2264.718803][ C2] tcf_action_destroy+0x43/0x130
[ 2264.719055][ C2] tcf_exts_destroy+0x3c/0xb0
[ 2264.719293][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 2264.719609][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 2264.719889][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 2264.720187][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 2264.720486][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 2264.720771][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 2264.721082][ C2] ? __lock_release+0x40f/0x880
[ 2264.721329][ C2] ? __mutex_lock+0x26e/0xb10
[ 2264.721567][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 2264.721847][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 2264.722154][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 2264.722455][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 2264.722703][ C2] tcf_chain_flush+0x1e0/0x320
[ 2264.722946][ C2] __tcf_block_put+0x113/0x270
[ 2264.723190][ C2] tcf_block_put+0xaf/0xf0
[ 2264.723415][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 2264.723674][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 2264.723946][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 2264.724219][ C2] __qdisc_destroy+0xee/0x340
[ 2264.724458][ C2] dev_shutdown+0x164/0x350
[ 2264.724685][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 2264.725011][ C2] ? mutex_is_locked+0x17/0x50
[ 2264.725253][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 2264.725591][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 2264.725907][ C2] default_device_exit_batch+0x234/0x2d0
[ 2264.726193][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 2264.726504][ C2] ? ops_exit_list+0xb4/0x170
[ 2264.726741][ C2] cleanup_net+0x4f3/0xb60
[ 2264.726970][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 2264.727253][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 2264.727502][ C2] ? lock_acquire+0x1c1/0x220
[ 2264.727740][ C2] ? process_one_work+0x714/0x1310
[ 2264.728002][ C2] process_one_work+0x78c/0x1310
[ 2264.728254][ C2] ? hlock_class+0x4e/0x130
[ 2264.728486][ C2] ? __pfx_process_one_work+0x10/0x10
[ 2264.728757][ C2] ? assign_work+0x16c/0x240
[ 2264.728996][ C2] worker_thread+0x73d/0x1010
[ 2264.729236][ C2] ? __pfx_worker_thread+0x10/0x10
[ 2264.729493][ C2] kthread+0x28f/0x360
[ 2264.729709][ C2] ? __pfx_kthread+0x10/0x10
[ 2264.729943][ C2] ret_from_fork+0x31/0x70
[ 2264.730170][ C2] ? __pfx_kthread+0x10/0x10
[ 2264.730403][ C2] ret_from_fork_asm+0x1b/0x30
[ 2264.730652][ C2]
[ 2292.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 2016s! [kworker/u8:0:11]
[ 2292.564081][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 2292.564490][ C2] irq event stamp: 753065
[ 2292.564705][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 2292.565177][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff
[ 2292.565639][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff
[ 2292.566109][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0
[ 2292.566569][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1
[ 2292.567039][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 2292.567644][ C2] Workqueue: netns cleanup_net
[ 2292.567890][ C2] RIP: 0010:kasan_report+0x13/0xf0
[ 2292.568151][ C2] Code: 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c <8f> 04 24 0f 01 ca 65 4c 8b 3c 25 80 b8 1f 00 41 8b 87 e0 17 00 00
[ 2292.569113][ C2] RSP: 0018:ffffc900000bf1e0 EFLAGS: 00000286
[ 2292.569417][ C2] RAX: 0000000000000001 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0
[ 2292.569820][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008
[ 2292.570217][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01
[ 2292.570612][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003
[ 2292.571007][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57
[ 2292.571402][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000
[ 2292.571844][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2292.572175][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0
[ 2292.572571][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2292.572966][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2292.573362][ C2] PKRU: 55555554
[ 2292.573541][ C2] Call Trace:
[ 2292.573711][ C2]
[ 2292.573858][ C2] ? watchdog_timer_fn+0x2cf/0x3c0
[ 2292.574121][ C2] ? __run_hrtimer+0x1c0/0x710
[ 2292.574362][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10
[ 2292.574638][ C2] ? __hrtimer_run_queues+0x197/0x270
[ 2292.574908][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10
[ 2292.575193][ C2] ? kvm_clock_get_cycles+0x18/0x30
[ 2292.575457][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0
[ 2292.575760][ C2] ? hrtimer_interrupt+0x2c3/0x770
[ 2292.576021][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380
[ 2292.576328][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80
[ 2292.576622][ C2]
[ 2292.576770][ C2]
[ 2292.576919][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 2292.577234][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90
[ 2292.577522][ C2] ? kasan_report+0x13/0xf0
[ 2292.577754][ C2] kasan_check_range+0x39/0x1c0
[ 2292.578003][ C2] queued_spin_lock_slowpath+0xb0/0xb90
[ 2292.578283][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 2292.578593][ C2] ? __pfx___schedule+0x10/0x10
[ 2292.578840][ C2] do_raw_spin_lock+0x1ec/0x270
[ 2292.579091][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 2292.579361][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 2292.579650][ C2] ? lock_acquire+0x1c1/0x220
[ 2292.579888][ C2] ? __mutex_lock+0x33e/0xb10
[ 2292.580127][ C2] ? __mutex_lock+0x811/0xb10
[ 2292.580363][ C2] _raw_spin_lock+0x67/0x80
[ 2292.580594][ C2] __mutex_lock+0x33e/0xb10
[ 2292.580823][ C2] ? __lock_release+0x40f/0x880
[ 2292.581068][ C2] ? __pfx___lock_release+0x10/0x10
[ 2292.581332][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2292.581627][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 2292.581880][ C2] ? __pfx___up_read+0x10/0x10
[ 2292.582129][ C2] ? refcount_dec_not_one+0x6b/0x180
[ 2292.582394][ C2] ? tc_setup_cb_destroy+0x22b/0x300
[ 2292.582661][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10
[ 2292.582953][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90
[ 2292.583244][ C2] refcount_dec_and_mutex_lock+0x35/0x90
[ 2292.583527][ C2] __tcf_action_put+0x3d/0xf0
[ 2292.583768][ C2] tcf_action_destroy+0x43/0x130
[ 2292.584019][ C2] tcf_exts_destroy+0x3c/0xb0
[ 2292.584255][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower]
[ 2292.584573][ C2] __fl_put+0x21a/0x290 [cls_flower]
[ 2292.584843][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower]
[ 2292.585142][ C2] ? __fl_delete+0x33f/0x750 [cls_flower]
[ 2292.585434][ C2] __fl_delete+0x4e4/0x750 [cls_flower]
[ 2292.585717][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower]
[ 2292.586027][ C2] ? __lock_release+0x40f/0x880
[ 2292.586272][ C2] ? __mutex_lock+0x26e/0xb10
[ 2292.586508][ C2] fl_destroy+0x1ae/0x300 [cls_flower]
[ 2292.586790][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower]
[ 2292.587095][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 2292.587398][ C2] tcf_proto_destroy+0x6e/0x2e0
[ 2292.587644][ C2] tcf_chain_flush+0x1e0/0x320
[ 2292.587887][ C2] __tcf_block_put+0x113/0x270
[ 2292.588132][ C2] tcf_block_put+0xaf/0xf0
[ 2292.588355][ C2] ? __pfx_tcf_block_put+0x10/0x10
[ 2292.588614][ C2] ? prio_reset+0x88/0xe0 [sch_prio]
[ 2292.588886][ C2] prio_destroy+0x4d/0x120 [sch_prio]
[ 2292.589166][ C2] __qdisc_destroy+0xee/0x340
[ 2292.589405][ C2] dev_shutdown+0x164/0x350
[ 2292.589644][ C2] unregister_netdevice_many_notify+0x4fe/0x1180
[ 2292.589967][ C2] ? mutex_is_locked+0x17/0x50
[ 2292.590210][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 2292.590549][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 2292.590865][ C2] default_device_exit_batch+0x234/0x2d0
[ 2292.591153][ C2] ? __pfx_default_device_exit_batch+0x10/0x10
[ 2292.591468][ C2] ? ops_exit_list+0xb4/0x170
[ 2292.591706][ C2] cleanup_net+0x4f3/0xb60
[ 2292.591933][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 2292.592215][ C2] ? __pfx_cleanup_net+0x10/0x10
[ 2292.592467][ C2] ? lock_acquire+0x1c1/0x220
[ 2292.592704][ C2] ? process_one_work+0x714/0x1310
[ 2292.592966][ C2] process_one_work+0x78c/0x1310
[ 2292.593218][ C2] ? hlock_class+0x4e/0x130
[ 2292.593448][ C2] ? __pfx_process_one_work+0x10/0x10
[ 2292.593721][ C2] ? assign_work+0x16c/0x240
[ 2292.593956][ C2] worker_thread+0x73d/0x1010
[ 2292.594196][ C2] ? __pfx_worker_thread+0x10/0x10
[ 2292.594454][ C2] kthread+0x28f/0x360
[ 2292.594661][ C2] ? __pfx_kthread+0x10/0x10
[ 2292.594895][ C2] ret_from_fork+0x31/0x70
[ 2292.595122][ C2] ? __pfx_kthread+0x10/0x10
[ 2292.595356][ C2] ret_from_fork_asm+0x1b/0x30
[ 2292.595605][ C2]
[ 2320.563631][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 2042s! [kworker/u8:0:11]
[ 2320.564086][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio
[ 2320.564497][ C2] irq event stamp: 753065
[ 2320.564715][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90
[ 2320.565184][ C2] hardirqs last disabled at (753064): [