[ 6552.555809][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 5573s! [kworker/u8:1:71] [ 6552.556254][ C0] Modules linked in: act_gact cls_flower sch_ingress vxlan poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 6552.556959][ C0] irq event stamp: 164379 [ 6552.557179][ C0] hardirqs last enabled at (164379): [] irqentry_exit+0x3b/0x90 [ 6552.557654][ C0] hardirqs last disabled at (164378): [] __do_softirq+0x670/0x7ff [ 6552.558132][ C0] softirqs last enabled at (164328): [] __do_softirq+0x519/0x7ff [ 6552.558611][ C0] softirqs last disabled at (163773): [] irq_exit_rcu+0x98/0xc0 [ 6552.559077][ C0] CPU: 0 PID: 71 Comm: kworker/u8:1 Tainted: G B L 6.8.0-rc2-virtme #1 [ 6552.559561][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 6552.560180][ C0] Workqueue: netns cleanup_net [ 6552.560428][ C0] RIP: 0010:kasan_report+0xd2/0xf0 [ 6552.560693][ C0] 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 [ 6552.561678][ C0] RSP: 0018:ffffc9000051f318 EFLAGS: 00000286 [ 6552.561990][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff906b35b0 [ 6552.562392][ C0] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888008e4fa08 [ 6552.562798][ C0] RBP: ffff888008e4fa08 R08: 0000000000000000 R09: ffffed10011c9f41 [ 6552.563206][ C0] R10: 0000000000000003 R11: ffff8880353fc508 R12: 0000000000000000 [ 6552.563609][ C0] R13: ffffffff906b35b0 R14: 0000000000000004 R15: ffff888005b70040 [ 6552.564012][ C0] FS: 0000000000000000(0000) GS:ffff888035200000(0000) knlGS:0000000000000000 [ 6552.564465][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6552.564802][ C0] CR2: 00007fd3e64bd270 CR3: 000000001c334002 CR4: 0000000000770ef0 [ 6552.565209][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 6552.565612][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 6552.566014][ C0] PKRU: 55555554 [ 6552.566198][ C0] Call Trace: [ 6552.566371][ C0] [ 6552.566522][ C0] ? watchdog_timer_fn+0x2cf/0x3c0 [ 6552.566787][ C0] ? __run_hrtimer+0x1c0/0x710 [ 6552.567034][ C0] ? __pfx_watchdog_timer_fn+0x10/0x10 [ 6552.567316][ C0] ? __hrtimer_run_queues+0x197/0x270 [ 6552.567594][ C0] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 6552.567884][ C0] ? kvm_clock_get_cycles+0x18/0x30 [ 6552.568151][ C0] ? ktime_get_update_offsets_now+0xe1/0x2d0 [ 6552.568462][ C0] ? hrtimer_interrupt+0x2c3/0x770 [ 6552.568728][ C0] ? __sysvec_apic_timer_interrupt+0xbe/0x380 [ 6552.569040][ C0] ? sysvec_apic_timer_interrupt+0x70/0x80 [ 6552.569340][ C0] [ 6552.569490][ C0] [ 6552.569642][ C0] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 6552.569960][ C0] ? queued_spin_lock_slowpath+0xb0/0xb90 [ 6552.570254][ C0] ? queued_spin_lock_slowpath+0xb0/0xb90 [ 6552.570546][ C0] ? kasan_report+0xd2/0xf0 [ 6552.570784][ C0] ? queued_spin_lock_slowpath+0xb0/0xb90 [ 6552.571076][ C0] kasan_check_range+0x39/0x1c0 [ 6552.571328][ C0] queued_spin_lock_slowpath+0xb0/0xb90 [ 6552.571613][ C0] ? __pfx_queued_spin_lock_slowpath+0x10/0x10 [ 6552.571929][ C0] ? __pfx___schedule+0x10/0x10 [ 6552.572181][ C0] do_raw_spin_lock+0x1ec/0x270 [ 6552.572434][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 6552.572709][ C0] ? __pfx_do_raw_spin_trylock+0x10/0x10 [ 6552.572998][ C0] ? lock_acquire+0x1c1/0x220 [ 6552.573244][ C0] ? __mutex_lock+0x33e/0xb10 [ 6552.573486][ C0] ? __mutex_lock+0x811/0xb10 [ 6552.573729][ C0] _raw_spin_lock+0x67/0x80 [ 6552.573964][ C0] __mutex_lock+0x33e/0xb10 [ 6552.574196][ C0] ? __lock_release+0x40f/0x880 [ 6552.574447][ C0] ? __pfx___lock_release+0x10/0x10 [ 6552.574716][ C0] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6552.575017][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 6552.575276][ C0] ? __pfx___up_read+0x10/0x10 [ 6552.575524][ C0] ? refcount_dec_not_one+0x6b/0x180 [ 6552.575794][ C0] ? tc_setup_cb_destroy+0x22b/0x300 [ 6552.576065][ C0] ? __pfx_refcount_dec_not_one+0x10/0x10 [ 6552.576362][ C0] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6552.576658][ C0] refcount_dec_and_mutex_lock+0x35/0x90 [ 6552.576948][ C0] __tcf_action_put+0x3d/0xf0 [ 6552.577191][ C0] tcf_action_destroy+0x43/0x130 [ 6552.577445][ C0] tcf_exts_destroy+0x3c/0xb0 [ 6552.577687][ C0] __fl_destroy_filter+0x54/0x120 [cls_flower] [ 6552.578009][ C0] __fl_put+0x21a/0x290 [cls_flower] [ 6552.578285][ C0] ? __pfx___fl_put+0x10/0x10 [cls_flower] [ 6552.578590][ C0] ? __fl_delete+0x33f/0x750 [cls_flower] [ 6552.578887][ C0] __fl_delete+0x4e4/0x750 [cls_flower] [ 6552.579180][ C0] ? __pfx___fl_delete+0x10/0x10 [cls_flower] [ 6552.579494][ C0] ? __lock_release+0x40f/0x880 [ 6552.579745][ C0] ? __mutex_lock+0x26e/0xb10 [ 6552.579988][ C0] fl_destroy+0x1ae/0x300 [cls_flower] [ 6552.580273][ C0] ? __pfx_fl_destroy+0x10/0x10 [cls_flower] [ 6552.580585][ C0] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 6552.580894][ C0] tcf_proto_destroy+0x6e/0x2e0 [ 6552.581146][ C0] tcf_chain_flush+0x1e0/0x320 [ 6552.581397][ C0] __tcf_block_put+0x113/0x270 [ 6552.581644][ C0] clsact_destroy+0x226/0x800 [sch_ingress] [ 6552.581950][ C0] __qdisc_destroy+0xee/0x340 [ 6552.582193][ C0] dev_shutdown+0x129/0x350 [ 6552.582428][ C0] unregister_netdevice_many_notify+0x4fe/0x1180 [ 6552.582754][ C0] ? rtnl_is_locked+0x15/0x20 [ 6552.582995][ C0] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 6552.583318][ C0] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 6552.583665][ C0] ? mutex_is_locked+0x17/0x50 [ 6552.583908][ C0] ? nexthop_net_exit_batch_rtnl+0x83/0x210 [ 6552.584214][ C0] cleanup_net+0x4cf/0xb60 [ 6552.584444][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 6552.584731][ C0] ? __pfx_cleanup_net+0x10/0x10 [ 6552.584986][ C0] ? lock_acquire+0x1c1/0x220 [ 6552.585229][ C0] ? process_one_work+0x714/0x1310 [ 6552.585493][ C0] process_one_work+0x78c/0x1310 [ 6552.585749][ C0] ? hlock_class+0x4e/0x130 [ 6552.585981][ C0] ? __pfx_process_one_work+0x10/0x10 [ 6552.586261][ C0] ? assign_work+0x16c/0x240 [ 6552.586498][ C0] worker_thread+0x73d/0x1010 [ 6552.586740][ C0] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370 [ 6552.587077][ C0] ? __pfx_worker_thread+0x10/0x10 [ 6552.587339][ C0] ? __pfx_worker_thread+0x10/0x10 [ 6552.587601][ C0] kthread+0x28f/0x360 [ 6552.587814][ C0] ? __pfx_kthread+0x10/0x10 [ 6552.588050][ C0] ret_from_fork+0x31/0x70 [ 6552.588284][ C0] ? __pfx_kthread+0x10/0x10 [ 6552.588521][ C0] ret_from_fork_asm+0x1b/0x30 [ 6552.588771][ C0] [ 6580.555809][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 5599s! [kworker/u8:1:71] [ 6580.556253][ C0] Modules linked in: act_gact cls_flower sch_ingress vxlan poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 6580.556954][ C0] irq event stamp: 164379 [ 6580.557177][ C0] hardirqs last enabled at (164379): [] irqentry_exit+0x3b/0x90 [ 6580.557652][ C0] hardirqs last disabled at (164378): [] __do_softirq+0x670/0x7ff [ 6580.558128][ C0] softirqs last enabled at (164328): [] __do_softirq+0x519/0x7ff [ 6580.558602][ C0] softirqs last disabled at (163773): [] irq_exit_rcu+0x98/0xc0 [ 6580.559072][ C0] CPU: 0 PID: 71 Comm: kworker/u8:1 Tainted: G B L 6.8.0-rc2-virtme #1 [ 6580.559550][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 6580.560170][ C0] Workqueue: netns cleanup_net [ 6580.560418][ C0] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90 [ 6580.560749][ C0] 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 [ 6580.561736][ C0] RSP: 0018:ffffc9000051f3e0 EFLAGS: 00000202 [ 6580.562046][ C0] RAX: 0000000000000000 RBX: 000000006b6b6b6b RCX: ffffffff906b3f0c [ 6580.562453][ C0] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888008e4fa08 [ 6580.562856][ C0] RBP: ffff888008e4fa08 R08: 0000000000000000 R09: ffffed10011c9f41 [ 6580.563263][ C0] R10: 0000000000000003 R11: ffff8880353fc508 R12: 0000000000000003 [ 6580.563667][ C0] R13: ffffed10011c9f41 R14: 0000000000000001 R15: 1ffff920000a3e7d [ 6580.564072][ C0] FS: 0000000000000000(0000) GS:ffff888035200000(0000) knlGS:0000000000000000 [ 6580.564524][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6580.564859][ C0] CR2: 00007fd3e64bd270 CR3: 000000001c334002 CR4: 0000000000770ef0 [ 6580.565263][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 6580.565667][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 6580.566072][ C0] PKRU: 55555554 [ 6580.566257][ C0] Call Trace: [ 6580.566426][ C0] [ 6580.566577][ C0] ? watchdog_timer_fn+0x2cf/0x3c0 [ 6580.566844][ C0] ? __run_hrtimer+0x1c0/0x710 [ 6580.567091][ C0] ? __pfx_watchdog_timer_fn+0x10/0x10 [ 6580.567374][ C0] ? __hrtimer_run_queues+0x197/0x270 [ 6580.567651][ C0] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 6580.567946][ C0] ? kvm_clock_get_cycles+0x18/0x30 [ 6580.568217][ C0] ? ktime_get_update_offsets_now+0xe1/0x2d0 [ 6580.568527][ C0] ? hrtimer_interrupt+0x2c3/0x770 [ 6580.568794][ C0] ? __sysvec_apic_timer_interrupt+0xbe/0x380 [ 6580.569106][ C0] ? sysvec_apic_timer_interrupt+0x70/0x80 [ 6580.569407][ C0] [ 6580.569558][ C0] [ 6580.569713][ C0] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 6580.570033][ C0] ? queued_spin_lock_slowpath+0xa0c/0xb90 [ 6580.570332][ C0] ? queued_spin_lock_slowpath+0x12d/0xb90 [ 6580.570633][ C0] ? __pfx_queued_spin_lock_slowpath+0x10/0x10 [ 6580.570951][ C0] ? __pfx___schedule+0x10/0x10 [ 6580.571205][ C0] do_raw_spin_lock+0x1ec/0x270 [ 6580.571457][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 6580.571735][ C0] ? __pfx_do_raw_spin_trylock+0x10/0x10 [ 6580.572022][ C0] ? lock_acquire+0x1c1/0x220 [ 6580.572264][ C0] ? __mutex_lock+0x33e/0xb10 [ 6580.572509][ C0] ? __mutex_lock+0x811/0xb10 [ 6580.572749][ C0] _raw_spin_lock+0x67/0x80 [ 6580.572996][ C0] __mutex_lock+0x33e/0xb10 [ 6580.573233][ C0] ? __lock_release+0x40f/0x880 [ 6580.573484][ C0] ? __pfx___lock_release+0x10/0x10 [ 6580.573752][ C0] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6580.574052][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 6580.574312][ C0] ? __pfx___up_read+0x10/0x10 [ 6580.574561][ C0] ? refcount_dec_not_one+0x6b/0x180 [ 6580.574831][ C0] ? tc_setup_cb_destroy+0x22b/0x300 [ 6580.575104][ C0] ? __pfx_refcount_dec_not_one+0x10/0x10 [ 6580.575402][ C0] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6580.575702][ C0] refcount_dec_and_mutex_lock+0x35/0x90 [ 6580.575992][ C0] __tcf_action_put+0x3d/0xf0 [ 6580.576238][ C0] tcf_action_destroy+0x43/0x130 [ 6580.576495][ C0] tcf_exts_destroy+0x3c/0xb0 [ 6580.576737][ C0] __fl_destroy_filter+0x54/0x120 [cls_flower] [ 6580.577060][ C0] __fl_put+0x21a/0x290 [cls_flower] [ 6580.577338][ C0] ? __pfx___fl_put+0x10/0x10 [cls_flower] [ 6580.577643][ C0] ? __fl_delete+0x33f/0x750 [cls_flower] [ 6580.577943][ C0] __fl_delete+0x4e4/0x750 [cls_flower] [ 6580.578234][ C0] ? __pfx___fl_delete+0x10/0x10 [cls_flower] [ 6580.578550][ C0] ? __lock_release+0x40f/0x880 [ 6580.578802][ C0] ? __mutex_lock+0x26e/0xb10 [ 6580.579045][ C0] fl_destroy+0x1ae/0x300 [cls_flower] [ 6580.579335][ C0] ? __pfx_fl_destroy+0x10/0x10 [cls_flower] [ 6580.579648][ C0] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 6580.579957][ C0] tcf_proto_destroy+0x6e/0x2e0 [ 6580.580211][ C0] tcf_chain_flush+0x1e0/0x320 [ 6580.580460][ C0] __tcf_block_put+0x113/0x270 [ 6580.580710][ C0] clsact_destroy+0x226/0x800 [sch_ingress] [ 6580.581017][ C0] __qdisc_destroy+0xee/0x340 [ 6580.581261][ C0] dev_shutdown+0x129/0x350 [ 6580.581498][ C0] unregister_netdevice_many_notify+0x4fe/0x1180 [ 6580.581825][ C0] ? rtnl_is_locked+0x15/0x20 [ 6580.582069][ C0] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 6580.582389][ C0] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 6580.582737][ C0] ? mutex_is_locked+0x17/0x50 [ 6580.582989][ C0] ? nexthop_net_exit_batch_rtnl+0x83/0x210 [ 6580.583293][ C0] cleanup_net+0x4cf/0xb60 [ 6580.583526][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 6580.583814][ C0] ? __pfx_cleanup_net+0x10/0x10 [ 6580.584070][ C0] ? lock_acquire+0x1c1/0x220 [ 6580.584313][ C0] ? process_one_work+0x714/0x1310 [ 6580.584579][ C0] process_one_work+0x78c/0x1310 [ 6580.584836][ C0] ? hlock_class+0x4e/0x130 [ 6580.585073][ C0] ? __pfx_process_one_work+0x10/0x10 [ 6580.585352][ C0] ? assign_work+0x16c/0x240 [ 6580.585592][ C0] worker_thread+0x73d/0x1010 [ 6580.585833][ C0] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370 [ 6580.586174][ C0] ? __pfx_worker_thread+0x10/0x10 [ 6580.586440][ C0] ? __pfx_worker_thread+0x10/0x10 [ 6580.586703][ C0] kthread+0x28f/0x360 [ 6580.586914][ C0] ? __pfx_kthread+0x10/0x10 [ 6580.587153][ C0] ret_from_fork+0x31/0x70 [ 6580.587382][ C0] ? __pfx_kthread+0x10/0x10 [ 6580.587621][ C0] ret_from_fork_asm+0x1b/0x30 [ 6580.587875][ C0] [ 6600.011344][ T49] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 6029736 jiffies s: 1289 root: 0x1/. [ 6600.011982][ T49] rcu: blocking rcu_node structures (internal RCU debug): [ 6600.012365][ T49] Sending NMI from CPU 2 to CPUs 0: [ 6600.012651][ C0] NMI backtrace for cpu 0 [ 6600.012659][ C0] CPU: 0 PID: 71 Comm: kworker/u8:1 Tainted: G B L 6.8.0-rc2-virtme #1 [ 6600.012663][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 6600.012665][ C0] Workqueue: netns cleanup_net [ 6600.012671][ C0] RIP: 0010:kasan_report+0xd2/0xf0 [ 6600.012676][ C0] 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 [ 6600.012679][ C0] RSP: 0018:ffffc9000051f318 EFLAGS: 00000286 [ 6600.012681][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff906b35b0 [ 6600.012683][ C0] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888008e4fa08 [ 6600.012684][ C0] RBP: ffff888008e4fa08 R08: 0000000000000000 R09: ffffed10011c9f41 [ 6600.012686][ C0] R10: 0000000000000003 R11: ffff8880353fc508 R12: 0000000000000000 [ 6600.012688][ C0] R13: ffffffff906b35b0 R14: 0000000000000004 R15: ffff888005b70040 [ 6600.012690][ C0] FS: 0000000000000000(0000) GS:ffff888035200000(0000) knlGS:0000000000000000 [ 6600.012692][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6600.012695][ C0] CR2: 00007fd3e64bd270 CR3: 000000001c334002 CR4: 0000000000770ef0 [ 6600.012697][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 6600.012698][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 6600.012700][ C0] PKRU: 55555554 [ 6600.012700][ C0] Call Trace: [ 6600.012703][ C0] [ 6600.012705][ C0] ? nmi_cpu_backtrace+0x112/0x220 [ 6600.012710][ C0] ? nmi_cpu_backtrace_handler+0x11/0x20 [ 6600.012715][ C0] ? nmi_handle+0x153/0x420 [ 6600.012719][ C0] ? default_do_nmi+0x41/0x100 [ 6600.012723][ C0] ? exc_nmi+0xf3/0x120 [ 6600.012726][ C0] ? end_repeat_nmi+0xf/0x60 [ 6600.012729][ C0] ? queued_spin_lock_slowpath+0xb0/0xb90 [ 6600.012735][ C0] ? queued_spin_lock_slowpath+0xb0/0xb90 [ 6600.012738][ C0] ? kasan_report+0xd2/0xf0 [ 6600.012741][ C0] ? kasan_report+0xd2/0xf0 [ 6600.012745][ C0] ? kasan_report+0xd2/0xf0 [ 6600.012747][ C0] [ 6600.012748][ C0] [ 6600.012752][ C0] kasan_check_range+0x39/0x1c0 [ 6600.012757][ C0] queued_spin_lock_slowpath+0xb0/0xb90 [ 6600.012761][ C0] ? __pfx_queued_spin_lock_slowpath+0x10/0x10 [ 6600.012764][ C0] ? __pfx___schedule+0x10/0x10 [ 6600.012769][ C0] do_raw_spin_lock+0x1ec/0x270 [ 6600.012774][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 6600.012777][ C0] ? __pfx_do_raw_spin_trylock+0x10/0x10 [ 6600.012780][ C0] ? lock_acquire+0x1c1/0x220 [ 6600.012783][ C0] ? __mutex_lock+0x33e/0xb10 [ 6600.012787][ C0] ? __mutex_lock+0x811/0xb10 [ 6600.012789][ C0] _raw_spin_lock+0x67/0x80 [ 6600.012792][ C0] __mutex_lock+0x33e/0xb10 [ 6600.012796][ C0] ? __lock_release+0x40f/0x880 [ 6600.012799][ C0] ? __pfx___lock_release+0x10/0x10 [ 6600.012801][ C0] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6600.012806][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 6600.012814][ C0] ? __pfx___up_read+0x10/0x10 [ 6600.012818][ C0] ? refcount_dec_not_one+0x6b/0x180 [ 6600.012821][ C0] ? tc_setup_cb_destroy+0x22b/0x300 [ 6600.012825][ C0] ? __pfx_refcount_dec_not_one+0x10/0x10 [ 6600.012830][ C0] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6600.012834][ C0] refcount_dec_and_mutex_lock+0x35/0x90 [ 6600.012838][ C0] __tcf_action_put+0x3d/0xf0 [ 6600.012842][ C0] tcf_action_destroy+0x43/0x130 [ 6600.012846][ C0] tcf_exts_destroy+0x3c/0xb0 [ 6600.012849][ C0] __fl_destroy_filter+0x54/0x120 [cls_flower] [ 6600.012859][ C0] __fl_put+0x21a/0x290 [cls_flower] [ 6600.012867][ C0] ? __pfx___fl_put+0x10/0x10 [cls_flower] [ 6600.012876][ C0] ? __fl_delete+0x33f/0x750 [cls_flower] [ 6600.012885][ C0] __fl_delete+0x4e4/0x750 [cls_flower] [ 6600.012894][ C0] ? __pfx___fl_delete+0x10/0x10 [cls_flower] [ 6600.012902][ C0] ? __lock_release+0x40f/0x880 [ 6600.012905][ C0] ? __mutex_lock+0x26e/0xb10 [ 6600.012909][ C0] fl_destroy+0x1ae/0x300 [cls_flower] [ 6600.012919][ C0] ? __pfx_fl_destroy+0x10/0x10 [cls_flower] [ 6600.012927][ C0] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 6600.012931][ C0] tcf_proto_destroy+0x6e/0x2e0 [ 6600.012935][ C0] tcf_chain_flush+0x1e0/0x320 [ 6600.012939][ C0] __tcf_block_put+0x113/0x270 [ 6600.012943][ C0] clsact_destroy+0x226/0x800 [sch_ingress] [ 6600.012951][ C0] __qdisc_destroy+0xee/0x340 [ 6600.012955][ C0] dev_shutdown+0x129/0x350 [ 6600.012958][ C0] unregister_netdevice_many_notify+0x4fe/0x1180 [ 6600.012963][ C0] ? rtnl_is_locked+0x15/0x20 [ 6600.012966][ C0] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 6600.012969][ C0] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 6600.012972][ C0] ? mutex_is_locked+0x17/0x50 [ 6600.012975][ C0] ? nexthop_net_exit_batch_rtnl+0x83/0x210 [ 6600.012980][ C0] cleanup_net+0x4cf/0xb60 [ 6600.012983][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 6600.012986][ C0] ? __pfx_cleanup_net+0x10/0x10 [ 6600.012989][ C0] ? lock_acquire+0x1c1/0x220 [ 6600.012991][ C0] ? process_one_work+0x714/0x1310 [ 6600.012996][ C0] process_one_work+0x78c/0x1310 [ 6600.013001][ C0] ? hlock_class+0x4e/0x130 [ 6600.013004][ C0] ? __pfx_process_one_work+0x10/0x10 [ 6600.013009][ C0] ? assign_work+0x16c/0x240 [ 6600.013012][ C0] worker_thread+0x73d/0x1010 [ 6600.013015][ C0] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370 [ 6600.013019][ C0] ? __pfx_worker_thread+0x10/0x10 [ 6600.013022][ C0] ? __pfx_worker_thread+0x10/0x10 [ 6600.013024][ C0] kthread+0x28f/0x360 [ 6600.013027][ C0] ? __pfx_kthread+0x10/0x10 [ 6600.013030][ C0] ret_from_fork+0x31/0x70 [ 6600.013032][ C0] ? __pfx_kthread+0x10/0x10 [ 6600.013034][ C0] ret_from_fork_asm+0x1b/0x30 [ 6600.013042][ C0] [ 6605.315324][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 6605.315672][ C0] rcu: 0-....: (5698861 ticks this GP) idle=b65c/1/0x4000000000000000 softirq=265111/2424446 fqs=1303564 [ 6605.316243][ C0] rcu: (t=6035271 jiffies g=477977 q=10044 ncpus=4) [ 6605.316585][ C0] CPU: 0 PID: 71 Comm: kworker/u8:1 Tainted: G B L 6.8.0-rc2-virtme #1 [ 6605.317064][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 6605.317687][ C0] Workqueue: netns cleanup_net [ 6605.317937][ C0] RIP: 0010:kasan_report+0x19/0xf0 [ 6605.318202][ C0] 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 [ 6605.319185][ C0] RSP: 0018:ffffc9000051f318 EFLAGS: 00000286 [ 6605.319496][ C0] RAX: 0000000000000001 RBX: ffffed10011c9f42 RCX: ffffffff906b35b0 [ 6605.319901][ C0] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888008e4fa08 [ 6605.320304][ C0] RBP: ffffed10011c9f41 R08: 0000000000000000 R09: ffffed10011c9f41 [ 6605.320707][ C0] R10: 0000000000000003 R11: ffff8880353fc508 R12: 0000000000000003 [ 6605.321114][ C0] R13: ffffed10011c9f41 R14: 0000000000000001 R15: 1ffff920000a3e7d [ 6605.321519][ C0] FS: 0000000000000000(0000) GS:ffff888035200000(0000) knlGS:0000000000000000 [ 6605.321972][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6605.322308][ C0] CR2: 00007fd3e64bd270 CR3: 000000001c334002 CR4: 0000000000770ef0 [ 6605.322713][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 6605.323125][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 6605.323529][ C0] PKRU: 55555554 [ 6605.323714][ C0] Call Trace: [ 6605.323885][ C0] [ 6605.324034][ C0] ? rcu_dump_cpu_stacks+0x2a3/0x4c0 [ 6605.324311][ C0] ? print_cpu_stall+0x263/0x6a0 [ 6605.324568][ C0] ? check_cpu_stall+0x284/0x500 [ 6605.324823][ C0] ? debug_object_deactivate+0x216/0x3a0 [ 6605.325113][ C0] ? rcu_pending+0x92/0x360 [ 6605.325349][ C0] ? rcu_sched_clock_irq+0x107/0x3f0 [ 6605.325622][ C0] ? update_process_times+0xb9/0x110 [ 6605.325894][ C0] ? tick_sched_handle+0x67/0x130 [ 6605.326154][ C0] ? tick_nohz_highres_handler+0xa7/0xd0 [ 6605.326445][ C0] ? __run_hrtimer+0x1c0/0x710 [ 6605.326691][ C0] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 6605.327007][ C0] ? __hrtimer_run_queues+0x197/0x270 [ 6605.327284][ C0] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 6605.327576][ C0] ? kvm_clock_get_cycles+0x18/0x30 [ 6605.327843][ C0] ? ktime_get_update_offsets_now+0xe1/0x2d0 [ 6605.328154][ C0] ? hrtimer_interrupt+0x2c3/0x770 [ 6605.328420][ C0] ? __sysvec_apic_timer_interrupt+0xbe/0x380 [ 6605.328736][ C0] ? sysvec_apic_timer_interrupt+0x70/0x80 [ 6605.329037][ C0] [ 6605.329189][ C0] [ 6605.329340][ C0] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 6605.329661][ C0] ? queued_spin_lock_slowpath+0xb0/0xb90 [ 6605.329955][ C0] ? kasan_report+0x19/0xf0 [ 6605.330192][ C0] kasan_check_range+0x39/0x1c0 [ 6605.330444][ C0] queued_spin_lock_slowpath+0xb0/0xb90 [ 6605.330730][ C0] ? __pfx_queued_spin_lock_slowpath+0x10/0x10 [ 6605.331046][ C0] ? __pfx___schedule+0x10/0x10 [ 6605.331299][ C0] do_raw_spin_lock+0x1ec/0x270 [ 6605.331553][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 6605.331828][ C0] ? __pfx_do_raw_spin_trylock+0x10/0x10 [ 6605.332117][ C0] ? lock_acquire+0x1c1/0x220 [ 6605.332360][ C0] ? __mutex_lock+0x33e/0xb10 [ 6605.332601][ C0] ? __mutex_lock+0x811/0xb10 [ 6605.332851][ C0] _raw_spin_lock+0x67/0x80 [ 6605.333086][ C0] __mutex_lock+0x33e/0xb10 [ 6605.333320][ C0] ? __lock_release+0x40f/0x880 [ 6605.333570][ C0] ? __pfx___lock_release+0x10/0x10 [ 6605.333838][ C0] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6605.334138][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 6605.334397][ C0] ? __pfx___up_read+0x10/0x10 [ 6605.334644][ C0] ? refcount_dec_not_one+0x6b/0x180 [ 6605.334916][ C0] ? tc_setup_cb_destroy+0x22b/0x300 [ 6605.335187][ C0] ? __pfx_refcount_dec_not_one+0x10/0x10 [ 6605.335483][ C0] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6605.335781][ C0] refcount_dec_and_mutex_lock+0x35/0x90 [ 6605.336072][ C0] __tcf_action_put+0x3d/0xf0 [ 6605.336315][ C0] tcf_action_destroy+0x43/0x130 [ 6605.336571][ C0] tcf_exts_destroy+0x3c/0xb0 [ 6605.336812][ C0] __fl_destroy_filter+0x54/0x120 [cls_flower] [ 6605.337133][ C0] __fl_put+0x21a/0x290 [cls_flower] [ 6605.337409][ C0] ? __pfx___fl_put+0x10/0x10 [cls_flower] [ 6605.337714][ C0] ? __fl_delete+0x33f/0x750 [cls_flower] [ 6605.338015][ C0] __fl_delete+0x4e4/0x750 [cls_flower] [ 6605.338306][ C0] ? __pfx___fl_delete+0x10/0x10 [cls_flower] [ 6605.338622][ C0] ? __lock_release+0x40f/0x880 [ 6605.338873][ C0] ? __mutex_lock+0x26e/0xb10 [ 6605.339115][ C0] fl_destroy+0x1ae/0x300 [cls_flower] [ 6605.339403][ C0] ? __pfx_fl_destroy+0x10/0x10 [cls_flower] [ 6605.339714][ C0] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 6605.340023][ C0] tcf_proto_destroy+0x6e/0x2e0 [ 6605.340276][ C0] tcf_chain_flush+0x1e0/0x320 [ 6605.340525][ C0] __tcf_block_put+0x113/0x270 [ 6605.340775][ C0] clsact_destroy+0x226/0x800 [sch_ingress] [ 6605.341080][ C0] __qdisc_destroy+0xee/0x340 [ 6605.341324][ C0] dev_shutdown+0x129/0x350 [ 6605.341560][ C0] unregister_netdevice_many_notify+0x4fe/0x1180 [ 6605.341885][ C0] ? rtnl_is_locked+0x15/0x20 [ 6605.342126][ C0] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 6605.342446][ C0] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 6605.342798][ C0] ? mutex_is_locked+0x17/0x50 [ 6605.343042][ C0] ? nexthop_net_exit_batch_rtnl+0x83/0x210 [ 6605.343348][ C0] cleanup_net+0x4cf/0xb60 [ 6605.343579][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 6605.343866][ C0] ? __pfx_cleanup_net+0x10/0x10 [ 6605.344121][ C0] ? lock_acquire+0x1c1/0x220 [ 6605.344363][ C0] ? process_one_work+0x714/0x1310 [ 6605.344628][ C0] process_one_work+0x78c/0x1310 [ 6605.344885][ C0] ? hlock_class+0x4e/0x130 [ 6605.345119][ C0] ? __pfx_process_one_work+0x10/0x10 [ 6605.345399][ C0] ? assign_work+0x16c/0x240 [ 6605.345636][ C0] worker_thread+0x73d/0x1010 [ 6605.345879][ C0] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370 [ 6605.346216][ C0] ? __pfx_worker_thread+0x10/0x10 [ 6605.346478][ C0] ? __pfx_worker_thread+0x10/0x10 [ 6605.346742][ C0] kthread+0x28f/0x360 [ 6605.346954][ C0] ? __pfx_kthread+0x10/0x10 [ 6605.347189][ C0] ret_from_fork+0x31/0x70 [ 6605.347420][ C0] ? __pfx_kthread+0x10/0x10 [ 6605.347658][ C0] ret_from_fork_asm+0x1b/0x30 [ 6605.347909][ C0] [ 6632.555810][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 5648s! [kworker/u8:1:71] [ 6632.556274][ C0] Modules linked in: act_gact cls_flower sch_ingress vxlan poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 6632.556980][ C0] irq event stamp: 164379 [ 6632.557199][ C0] hardirqs last enabled at (164379): [] irqentry_exit+0x3b/0x90 [ 6632.557676][ C0] hardirqs last disabled at (164378): [] __do_softirq+0x670/0x7ff [ 6632.558151][ C0] softirqs last enabled at (164328): [] __do_softirq+0x519/0x7ff [ 6632.558624][ C0] softirqs last disabled at (163773): [] irq_exit_rcu+0x98/0xc0 [ 6632.559090][ C0] CPU: 0 PID: 71 Comm: kworker/u8:1 Tainted: G B L 6.8.0-rc2-virtme #1 [ 6632.559573][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 6632.560193][ C0] Workqueue: netns cleanup_net [ 6632.560442][ C0] RIP: 0010:kasan_report+0x29/0xf0 [ 6632.560707][ C0] 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 [ 6632.561687][ C0] RSP: 0018:ffffc9000051f338 EFLAGS: 00000282 [ 6632.561998][ C0] RAX: 0000000000000000 RBX: 000000006b6b6b6b RCX: ffffffff906b3f0c [ 6632.562401][ C0] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888008e4fa08 [ 6632.562811][ C0] RBP: ffff888008e4fa08 R08: 0000000000000000 R09: ffffed10011c9f41 [ 6632.563216][ C0] R10: 0000000000000003 R11: ffff8880353fc508 R12: 0000000000000003 [ 6632.563619][ C0] R13: ffffed10011c9f41 R14: 0000000000000001 R15: ffff888005b70040 [ 6632.564022][ C0] FS: 0000000000000000(0000) GS:ffff888035200000(0000) knlGS:0000000000000000 [ 6632.564474][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6632.564812][ C0] CR2: 00007fd3e64bd270 CR3: 000000001c334002 CR4: 0000000000770ef0 [ 6632.565217][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 6632.565620][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 6632.566024][ C0] PKRU: 55555554 [ 6632.566207][ C0] Call Trace: [ 6632.566381][ C0] [ 6632.566530][ C0] ? watchdog_timer_fn+0x2cf/0x3c0 [ 6632.566796][ C0] ? __run_hrtimer+0x1c0/0x710 [ 6632.567044][ C0] ? __pfx_watchdog_timer_fn+0x10/0x10 [ 6632.567325][ C0] ? __hrtimer_run_queues+0x197/0x270 [ 6632.567602][ C0] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 6632.567893][ C0] ? kvm_clock_get_cycles+0x18/0x30 [ 6632.568161][ C0] ? ktime_get_update_offsets_now+0xe1/0x2d0 [ 6632.568472][ C0] ? hrtimer_interrupt+0x2c3/0x770 [ 6632.568738][ C0] ? __sysvec_apic_timer_interrupt+0xbe/0x380 [ 6632.569051][ C0] ? sysvec_apic_timer_interrupt+0x70/0x80 [ 6632.569350][ C0] [ 6632.569501][ C0] [ 6632.569652][ C0] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 6632.569972][ C0] ? queued_spin_lock_slowpath+0xa0c/0xb90 [ 6632.570273][ C0] ? kasan_report+0x29/0xf0 [ 6632.570511][ C0] queued_spin_lock_slowpath+0xa0c/0xb90 [ 6632.570800][ C0] ? __pfx_queued_spin_lock_slowpath+0x10/0x10 [ 6632.571117][ C0] ? __pfx___schedule+0x10/0x10 [ 6632.571370][ C0] do_raw_spin_lock+0x1ec/0x270 [ 6632.571625][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 6632.571902][ C0] ? __pfx_do_raw_spin_trylock+0x10/0x10 [ 6632.572189][ C0] ? lock_acquire+0x1c1/0x220 [ 6632.572431][ C0] ? __mutex_lock+0x33e/0xb10 [ 6632.572680][ C0] ? __mutex_lock+0x811/0xb10 [ 6632.572921][ C0] _raw_spin_lock+0x67/0x80 [ 6632.573154][ C0] __mutex_lock+0x33e/0xb10 [ 6632.573388][ C0] ? __lock_release+0x40f/0x880 [ 6632.573640][ C0] ? __pfx___lock_release+0x10/0x10 [ 6632.573906][ C0] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6632.574205][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 6632.574464][ C0] ? __pfx___up_read+0x10/0x10 [ 6632.574712][ C0] ? refcount_dec_not_one+0x6b/0x180 [ 6632.574981][ C0] ? tc_setup_cb_destroy+0x22b/0x300 [ 6632.575256][ C0] ? __pfx_refcount_dec_not_one+0x10/0x10 [ 6632.575551][ C0] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6632.575850][ C0] refcount_dec_and_mutex_lock+0x35/0x90 [ 6632.576137][ C0] __tcf_action_put+0x3d/0xf0 [ 6632.576381][ C0] tcf_action_destroy+0x43/0x130 [ 6632.576637][ C0] tcf_exts_destroy+0x3c/0xb0 [ 6632.576879][ C0] __fl_destroy_filter+0x54/0x120 [cls_flower] [ 6632.577201][ C0] __fl_put+0x21a/0x290 [cls_flower] [ 6632.577480][ C0] ? __pfx___fl_put+0x10/0x10 [cls_flower] [ 6632.577781][ C0] ? __fl_delete+0x33f/0x750 [cls_flower] [ 6632.578081][ C0] __fl_delete+0x4e4/0x750 [cls_flower] [ 6632.578371][ C0] ? __pfx___fl_delete+0x10/0x10 [cls_flower] [ 6632.578686][ C0] ? __lock_release+0x40f/0x880 [ 6632.578938][ C0] ? __mutex_lock+0x26e/0xb10 [ 6632.579182][ C0] fl_destroy+0x1ae/0x300 [cls_flower] [ 6632.579469][ C0] ? __pfx_fl_destroy+0x10/0x10 [cls_flower] [ 6632.579781][ C0] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 6632.580088][ C0] tcf_proto_destroy+0x6e/0x2e0 [ 6632.580341][ C0] tcf_chain_flush+0x1e0/0x320 [ 6632.580590][ C0] __tcf_block_put+0x113/0x270 [ 6632.580838][ C0] clsact_destroy+0x226/0x800 [sch_ingress] [ 6632.581146][ C0] __qdisc_destroy+0xee/0x340 [ 6632.581387][ C0] dev_shutdown+0x129/0x350 [ 6632.581623][ C0] unregister_netdevice_many_notify+0x4fe/0x1180 [ 6632.581948][ C0] ? rtnl_is_locked+0x15/0x20 [ 6632.582192][ C0] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 6632.582511][ C0] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 6632.582860][ C0] ? mutex_is_locked+0x17/0x50 [ 6632.583107][ C0] ? nexthop_net_exit_batch_rtnl+0x83/0x210 [ 6632.583412][ C0] cleanup_net+0x4cf/0xb60 [ 6632.583642][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 6632.583929][ C0] ? __pfx_cleanup_net+0x10/0x10 [ 6632.584184][ C0] ? lock_acquire+0x1c1/0x220 [ 6632.584426][ C0] ? process_one_work+0x714/0x1310 [ 6632.584690][ C0] process_one_work+0x78c/0x1310 [ 6632.584946][ C0] ? hlock_class+0x4e/0x130 [ 6632.585183][ C0] ? __pfx_process_one_work+0x10/0x10 [ 6632.585460][ C0] ? assign_work+0x16c/0x240 [ 6632.585700][ C0] worker_thread+0x73d/0x1010 [ 6632.585942][ C0] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370 [ 6632.586280][ C0] ? __pfx_worker_thread+0x10/0x10 [ 6632.586544][ C0] ? __pfx_worker_thread+0x10/0x10 [ 6632.586807][ C0] kthread+0x28f/0x360 [ 6632.587016][ C0] ? __pfx_kthread+0x10/0x10 [ 6632.587255][ C0] ret_from_fork+0x31/0x70 [ 6632.587483][ C0] ? __pfx_kthread+0x10/0x10 [ 6632.587720][ C0] ret_from_fork_asm+0x1b/0x30 [ 6632.587973][ C0] exit [?2004l exit Powering off. [ 6660.531739][ T2436] ACPI: PM: Preparing to enter system sleep state S5 [ 6660.555809][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 5674s! [kworker/u8:1:71] [ 6660.556282][ C0] Modules linked in: act_gact cls_flower sch_ingress vxlan poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 6660.557069][ C0] irq event stamp: 164379 [ 6660.557314][ C0] hardirqs last enabled at (164379): [] irqentry_exit+0x3b/0x90 [ 6660.557846][ C0] hardirqs last disabled at (164378): [] __do_softirq+0x670/0x7ff [ 6660.558383][ C0] softirqs last enabled at (164328): [] __do_softirq+0x519/0x7ff [ 6660.558912][ C0] softirqs last disabled at (163773): [] irq_exit_rcu+0x98/0xc0 [ 6660.559433][ C0] CPU: 0 PID: 71 Comm: kworker/u8:1 Tainted: G B L 6.8.0-rc2-virtme #1 [ 6660.559967][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 6660.560663][ C0] Workqueue: netns cleanup_net [ 6660.560941][ C0] RIP: 0010:kasan_report+0xd2/0xf0 [ 6660.561237][ C0] 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 [ 6660.562336][ C0] RSP: 0018:ffffc9000051f338 EFLAGS: 00000282 [ 6660.562687][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff906b3f0c [ 6660.563137][ C0] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888008e4fa08 [ 6660.563589][ C0] RBP: ffff888008e4fa08 R08: 0000000000000000 R09: ffffed10011c9f41 [ 6660.564040][ C0] R10: 0000000000000003 R11: ffff8880353fc508 R12: 0000000000000000 [ 6660.564494][ C0] R13: ffffffff906b3f0c R14: 0000000000000004 R15: ffff888005b70040 [ 6660.564945][ C0] FS: 0000000000000000(0000) GS:ffff888035200000(0000) knlGS:0000000000000000 [ 6660.565444][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6660.565818][ C0] CR2: 00007fd3e64bd270 CR3: 000000001c334002 CR4: 0000000000770ef0 [ 6660.566274][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 6660.566725][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 6660.567175][ C0] PKRU: 55555554 [ 6660.567381][ C0] Call Trace: [ 6660.567573][ C0] [ 6660.567738][ C0] ? watchdog_timer_fn+0x2cf/0x3c0 [ 6660.568034][ C0] ? __run_hrtimer+0x1c0/0x710 [ 6660.568310][ C0] ? __pfx_watchdog_timer_fn+0x10/0x10 [ 6660.568622][ C0] ? __hrtimer_run_queues+0x197/0x270 [ 6660.568929][ C0] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 6660.569257][ C0] ? kvm_clock_get_cycles+0x18/0x30 [ 6660.569560][ C0] ? ktime_get_update_offsets_now+0xe1/0x2d0 [ 6660.569909][ C0] ? hrtimer_interrupt+0x2c3/0x770 [ 6660.570205][ C0] ? __sysvec_apic_timer_interrupt+0xbe/0x380 [ 6660.570555][ C0] ? sysvec_apic_timer_interrupt+0x70/0x80 [ 6660.570888][ C0] [ 6660.571059][ C0] [ 6660.571228][ C0] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 6660.571583][ C0] ? queued_spin_lock_slowpath+0xa0c/0xb90 [ 6660.571917][ C0] ? queued_spin_lock_slowpath+0xa0c/0xb90 [ 6660.572249][ C0] ? kasan_report+0xd2/0xf0 [ 6660.572517][ C0] queued_spin_lock_slowpath+0xa0c/0xb90 [ 6660.572844][ C0] ? __pfx_queued_spin_lock_slowpath+0x10/0x10 [ 6660.573199][ C0] ? __pfx___schedule+0x10/0x10 [ 6660.573483][ C0] do_raw_spin_lock+0x1ec/0x270 [ 6660.573764][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 6660.574070][ C0] ? __pfx_do_raw_spin_trylock+0x10/0x10 [ 6660.574394][ C0] ? lock_acquire+0x1c1/0x220 [ 6660.574662][ C0] ? __mutex_lock+0x33e/0xb10 [ 6660.574933][ C0] ? __mutex_lock+0x811/0xb10 [ 6660.575204][ C0] _raw_spin_lock+0x67/0x80 [ 6660.575464][ C0] __mutex_lock+0x33e/0xb10 [ 6660.575723][ C0] ? __lock_release+0x40f/0x880 [ 6660.576004][ C0] ? __pfx___lock_release+0x10/0x10 [ 6660.576302][ C0] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6660.576639][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 6660.576931][ C0] ? __pfx___up_read+0x10/0x10 [ 6660.577207][ C0] ? refcount_dec_not_one+0x6b/0x180 [ 6660.577512][ C0] ? tc_setup_cb_destroy+0x22b/0x300 [ 6660.577820][ C0] ? __pfx_refcount_dec_not_one+0x10/0x10 [ 6660.578149][ C0] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6660.578482][ C0] refcount_dec_and_mutex_lock+0x35/0x90 [ 6660.578804][ C0] __tcf_action_put+0x3d/0xf0 [ 6660.579074][ C0] tcf_action_destroy+0x43/0x130 [ 6660.579359][ C0] tcf_exts_destroy+0x3c/0xb0 [ 6660.579629][ C0] __fl_destroy_filter+0x54/0x120 [cls_flower] [ 6660.579992][ C0] __fl_put+0x21a/0x290 [cls_flower] [ 6660.580303][ C0] ? __pfx___fl_put+0x10/0x10 [cls_flower] [ 6660.580644][ C0] ? __fl_delete+0x33f/0x750 [cls_flower] [ 6660.580976][ C0] __fl_delete+0x4e4/0x750 [cls_flower] [ 6660.581299][ C0] ? __pfx___fl_delete+0x10/0x10 [cls_flower] [ 6660.581653][ C0] ? __lock_release+0x40f/0x880 [ 6660.581933][ C0] ? __mutex_lock+0x26e/0xb10 [ 6660.582207][ C0] fl_destroy+0x1ae/0x300 [cls_flower] [ 6660.582531][ C0] ? __pfx_fl_destroy+0x10/0x10 [cls_flower] [ 6660.582883][ C0] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 6660.583229][ C0] tcf_proto_destroy+0x6e/0x2e0 [ 6660.583514][ C0] tcf_chain_flush+0x1e0/0x320 [ 6660.583792][ C0] __tcf_block_put+0x113/0x270 [ 6660.584069][ C0] clsact_destroy+0x226/0x800 [sch_ingress] [ 6660.584414][ C0] __qdisc_destroy+0xee/0x340 [ 6660.584685][ C0] dev_shutdown+0x129/0x350 [ 6660.584945][ C0] unregister_netdevice_many_notify+0x4fe/0x1180 [ 6660.585314][ C0] ? rtnl_is_locked+0x15/0x20 [ 6660.585585][ C0] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 6660.585941][ C0] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 6660.586326][ C0] ? mutex_is_locked+0x17/0x50 [ 6660.586604][ C0] ? nexthop_net_exit_batch_rtnl+0x83/0x210 [ 6660.586948][ C0] cleanup_net+0x4cf/0xb60 [ 6660.587205][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 6660.587530][ C0] ? __pfx_cleanup_net+0x10/0x10 [ 6660.587819][ C0] ? lock_acquire+0x1c1/0x220 [ 6660.588088][ C0] ? process_one_work+0x714/0x1310 [ 6660.588386][ C0] process_one_work+0x78c/0x1310 [ 6660.588673][ C0] ? hlock_class+0x4e/0x130 [ 6660.588935][ C0] ? __pfx_process_one_work+0x10/0x10 [ 6660.589245][ C0] ? assign_work+0x16c/0x240 [ 6660.589512][ C0] worker_thread+0x73d/0x1010 [ 6660.589784][ C0] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370 [ 6660.590161][ C0] ? __pfx_worker_thread+0x10/0x10 [ 6660.590456][ C0] ? __pfx_worker_thread+0x10/0x10 [ 6660.590750][ C0] kthread+0x28f/0x360 [ 6660.590983][ C0] ? __pfx_kthread+0x10/0x10 [ 6660.591247][ C0] ret_from_fork+0x31/0x70 [ 6660.591505][ C0] ? __pfx_kthread+0x10/0x10 [ 6660.591769][ C0] ret_from_fork_asm+0x1b/0x30 [ 6660.592054][ C0]