make -C tools/testing/selftests TARGETS=net TEST_PROGS=test_bridge_backup__port.sh TEST_GEN_PROGS="" run_tests make: Entering directory '/home/virtme/testing-1/tools/testing/selftests' make[1]: Entering directory '/home/virtme/testing-1/tools/testing/selftests/net' make[1]: Nothing to be done for 'all'. make[1]: Leaving directory '/home/virtme/testing-1/tools/testing/selftests/net' make[1]: Entering directory '/home/virtme/testing-1/tools/testing/selftests/net' TAP version 13 1..1 # timeout set to 6000 # selftests: net: test_bridge_backup_port.sh [ 2.420041] veth0: renamed from veth1 [ 2.558041] br0: port 1(swp1) entered blocking state [ 2.558425] br0: port 1(swp1) entered disabled state [ 2.558711] swp1: entered allmulticast mode [ 2.559041] swp1: entered promiscuous mode [ 2.559358] br0: port 1(swp1) entered blocking state [ 2.559657] br0: port 1(swp1) entered forwarding state [ 2.611167] br0: port 2(vx0) entered blocking state [ 2.611464] br0: port 2(vx0) entered disabled state [ 2.611748] vx0: entered allmulticast mode [ 2.612058] vx0: entered promiscuous mode [ 2.612299] br0: port 2(vx0) entered blocking state [ 2.612563] br0: port 2(vx0) entered forwarding state [ 2.789311] br0: port 1(swp1) entered blocking state [ 2.789642] br0: port 1(swp1) entered disabled state [ 2.789933] swp1: entered allmulticast mode [ 2.790240] swp1: entered promiscuous mode [ 2.790517] br0: port 1(swp1) entered blocking state [ 2.790855] br0: port 1(swp1) entered forwarding state [ 2.819682] br0: port 2(vx0) entered blocking state [ 2.820010] br0: port 2(vx0) entered disabled state [ 2.820289] vx0: entered allmulticast mode [ 2.820596] vx0: entered promiscuous mode [ 2.821031] br0: port 2(vx0) entered blocking state [ 2.821303] br0: port 2(vx0) entered forwarding state # # Backup port # ----------- [ 7.953236] GACT probability NOT on [ 7.955492] tc (291) used greatest stack depth: 11920 bytes left # TEST: Forwarding out of swp1 [ OK ] # TEST: No forwarding out of vx0 [ OK ] [ 8.364508] br0: port 1(swp1) entered disabled state # TEST: swp1 carrier off [ OK ] # TEST: No forwarding out of swp1 [ OK ] # TEST: No forwarding out of vx0 [ OK ] [ 8.772022] br0: port 1(swp1) entered blocking state [ 8.772445] br0: port 1(swp1) entered forwarding state # TEST: swp1 carrier on [ OK ] # TEST: vx0 configured as backup port of swp1 [ OK ] # TEST: Forwarding out of swp1 [ OK ] # TEST: No forwarding out of vx0 [ OK ] [ 9.366022] br0: port 1(swp1) entered disabled state # TEST: swp1 carrier off [ OK ] # TEST: No forwarding out of swp1 [ OK ] # TEST: Forwarding out of vx0 [ OK ] [ 9.805064] br0: port 1(swp1) entered blocking state [ 9.805474] br0: port 1(swp1) entered forwarding state # TEST: swp1 carrier on [ OK ] # TEST: Forwarding out of swp1 [ OK ] # TEST: No forwarding out of vx0 [ OK ] # TEST: vx0 not configured as backup port of swp1 [ OK ] # TEST: Forwarding out of swp1 [ OK ] # TEST: No forwarding out of vx0 [ OK ] [ 10.623404] br0: port 1(swp1) entered disabled state # TEST: swp1 carrier off [ OK ] # TEST: No forwarding out of swp1 [ OK ] # TEST: No forwarding out of vx0 [ OK ] [ 11.034030] vx0: left allmulticast mode [ 11.034290] vx0: left promiscuous mode [ 11.034512] br0: port 2(vx0) entered disabled state [ 11.043013] swp1: left allmulticast mode [ 11.043248] swp1: left promiscuous mode [ 11.043459] br0: port 1(swp1) entered disabled state [ 11.078809] ------------[ cut here ]------------ [ 11.079395] DEBUG_LOCKS_WARN_ON(lock->magic != lock) [ 11.079408] WARNING: CPU: 2 PID: 10 at kernel/locking/mutex.c:587 __mutex_lock+0x351/0x7a0 [ 11.080826] Modules linked in: act_gact cls_flower sch_ingress vxlan [ 11.081527] CPU: 2 PID: 10 Comm: kworker/u8:0 Not tainted 6.8.0-rc2-virtme #1 [ 11.082184] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 11.083277] Workqueue: netns cleanup_net [ 11.083662] RIP: 0010:__mutex_lock+0x351/0x7a0 [ 11.084069] Code: ff 90 e8 a2 e7 70 ff 85 c0 74 23 8b 35 5c 8e db 00 85 f6 75 19 90 48 c7 c6 12 3a 8a 9e 48 c7 c7 b5 ae 89 9e e8 00 04 26 ff 90 <0f> 0b 90 90 90 e9 03 fd ff ff 4c 8d 6d a0 4c 89 e7 4c 89 ee e8 d6 [ 11.085401] RSP: 0018:ffffb706c005bab0 EFLAGS: 00010286 [ 11.085817] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000ffffdfff [ 11.086178] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 11.086581] RBP: ffffb706c005bb30 R08: ffffffff9ed78508 R09: 00000000ffffdfff [ 11.087101] R10: ffffffff9ec98520 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 11.087535] R13: 0000000000000000 R14: 0000000000000000 R15: ffff9650026e7400 [ 11.088077] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 11.088758] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 11.089257] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 11.089892] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 11.090551] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 11.091203] PKRU: 55555554 [ 11.091451] Call Trace: [ 11.091878] [ 11.092099] ? __warn+0x84/0x170 [ 11.092422] ? __mutex_lock+0x351/0x7a0 [ 11.092787] ? report_bug+0x199/0x1b0 [ 11.093157] ? handle_bug+0x3d/0x70 [ 11.093502] ? exc_invalid_op+0x18/0x70 [ 11.093899] ? asm_exc_invalid_op+0x1a/0x20 [ 11.094287] ? __mutex_lock+0x351/0x7a0 [ 11.094597] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 11.095051] ? up_read+0x1b/0x30 [ 11.095340] ? tc_setup_cb_destroy+0x116/0x180 [ 11.095769] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 11.096221] refcount_dec_and_mutex_lock+0x35/0x80 [ 11.096655] __tcf_action_put+0x1e/0x70 [ 11.096979] tcf_action_destroy+0x31/0x80 [ 11.097344] tcf_exts_destroy+0x20/0x40 [ 11.097723] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 11.098055] __fl_delete+0x12d/0x180 [cls_flower] [ 11.098345] fl_destroy+0xbd/0x140 [cls_flower] [ 11.098680] tcf_proto_destroy+0x1f/0xc0 [ 11.098986] tcf_chain_flush+0xab/0x170 [ 11.099197] __tcf_block_put+0xd2/0x190 [ 11.099400] clsact_destroy+0xb6/0x380 [sch_ingress] [ 11.099802] __qdisc_destroy+0x51/0x150 [ 11.100193] dev_shutdown+0x78/0x190 [ 11.100522] unregister_netdevice_many_notify+0x226/0x7e0 [ 11.101038] cleanup_net+0x268/0x400 [ 11.101325] ? process_one_work+0x16c/0x4b0 [ 11.101623] process_one_work+0x1d6/0x4b0 [ 11.102044] worker_thread+0x1c1/0x3d0 [ 11.102463] ? __pfx_worker_thread+0x10/0x10 [ 11.102955] kthread+0xda/0x110 [ 11.103333] ? __pfx_kthread+0x10/0x10 [ 11.103744] ret_from_fork+0x31/0x50 [ 11.104136] ? __pfx_kthread+0x10/0x10 [ 11.104536] ret_from_fork_asm+0x1b/0x30 [ 11.105030] [ 11.105279] irq event stamp: 11663 [ 11.105625] hardirqs last enabled at (11663): [] finish_task_switch.isra.0+0xf7/0x330 [ 11.106613] hardirqs last disabled at (11662): [] __schedule+0x6ee/0xc70 [ 11.107111] softirqs last enabled at (11610): [] unregister_netdevice_many_notify+0x307/0x7e0 [ 11.107656] softirqs last disabled at (11608): [] dev_mc_flush+0x41/0xc0 [ 11.108313] ---[ end trace 0000000000000000 ]--- [ 37.081696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 37.082032] rcu: 2-....: (26001 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=5897 [ 37.082534] rcu: (t=26001 jiffies g=2201 q=2332 ncpus=4) [ 37.082817] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 37.083261] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 37.083851] Workqueue: netns cleanup_net [ 37.084071] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 37.084362] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 37.085319] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 37.085599] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 37.085973] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 37.086343] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 37.086720] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 37.087088] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 37.087465] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 37.087888] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.088185] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 37.088555] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.088926] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.089302] PKRU: 55555554 [ 37.089447] Call Trace: [ 37.089581] [ 37.089711] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 37.089947] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 37.090191] ? cpuacct_charge+0x3e/0x120 [ 37.090405] ? lock_release+0x1d3/0x270 [ 37.090610] ? lock_acquire+0x179/0x2b0 [ 37.090821] ? cpuacct_account_field+0x23/0xf0 [ 37.091058] ? update_process_times+0x5f/0x90 [ 37.091288] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 37.091576] ? tick_sched_handle+0x33/0x50 [ 37.091792] ? tick_nohz_highres_handler+0x71/0x90 [ 37.092051] ? __hrtimer_run_queues+0x86/0x390 [ 37.092288] ? hrtimer_interrupt+0x100/0x240 [ 37.092515] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 37.092792] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 37.093060] [ 37.093176] [ 37.093292] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 37.093573] ? queued_spin_lock_slowpath+0x36/0x310 [ 37.093846] do_raw_spin_lock+0x9b/0xa0 [ 37.094052] __mutex_lock+0x205/0x7a0 [ 37.094248] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 37.094513] ? up_read+0x1b/0x30 [ 37.094690] ? tc_setup_cb_destroy+0x116/0x180 [ 37.094930] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 37.095195] refcount_dec_and_mutex_lock+0x35/0x80 [ 37.095453] __tcf_action_put+0x1e/0x70 [ 37.095662] tcf_action_destroy+0x31/0x80 [ 37.095876] tcf_exts_destroy+0x20/0x40 [ 37.096080] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 37.096358] __fl_delete+0x12d/0x180 [cls_flower] [ 37.096611] fl_destroy+0xbd/0x140 [cls_flower] [ 37.096855] tcf_proto_destroy+0x1f/0xc0 [ 37.097062] tcf_chain_flush+0xab/0x170 [ 37.097265] __tcf_block_put+0xd2/0x190 [ 37.097472] clsact_destroy+0xb6/0x380 [sch_ingress] [ 37.097738] __qdisc_destroy+0x51/0x150 [ 37.097944] dev_shutdown+0x78/0x190 [ 37.098137] unregister_netdevice_many_notify+0x226/0x7e0 [ 37.098420] cleanup_net+0x268/0x400 [ 37.098612] ? process_one_work+0x16c/0x4b0 [ 37.098837] process_one_work+0x1d6/0x4b0 [ 37.099049] worker_thread+0x1c1/0x3d0 [ 37.099249] ? __pfx_worker_thread+0x10/0x10 [ 37.099477] kthread+0xda/0x110 [ 37.099646] ? __pfx_kthread+0x10/0x10 [ 37.099848] ret_from_fork+0x31/0x50 [ 37.100041] ? __pfx_kthread+0x10/0x10 [ 37.100240] ret_from_fork_asm+0x1b/0x30 [ 37.100452] [ 115.103696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 115.104042] rcu: 2-....: (104006 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=23718 [ 115.104546] rcu: (t=104023 jiffies g=2201 q=2339 ncpus=4) [ 115.104840] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 115.105287] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 115.105879] Workqueue: netns cleanup_net [ 115.106095] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 115.106388] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 115.107342] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 115.107617] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 115.107991] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 115.108362] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 115.108734] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 115.109104] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 115.109478] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 115.109900] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 115.110200] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 115.110572] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 115.110944] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 115.111322] PKRU: 55555554 [ 115.111468] Call Trace: [ 115.111605] [ 115.111723] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 115.111963] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 115.112204] ? cpuacct_charge+0x3e/0x120 [ 115.112417] ? lock_release+0x1d3/0x270 [ 115.112625] ? lock_acquire+0x179/0x2b0 [ 115.112832] ? cpuacct_account_field+0x23/0xf0 [ 115.113071] ? update_process_times+0x5f/0x90 [ 115.113304] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 115.113586] ? tick_sched_handle+0x33/0x50 [ 115.113805] ? tick_nohz_highres_handler+0x71/0x90 [ 115.114060] ? __hrtimer_run_queues+0x86/0x390 [ 115.114298] ? hrtimer_interrupt+0x100/0x240 [ 115.114526] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 115.114803] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 115.115067] [ 115.115183] [ 115.115300] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 115.115583] ? queued_spin_lock_slowpath+0x36/0x310 [ 115.115844] do_raw_spin_lock+0x9b/0xa0 [ 115.116052] __mutex_lock+0x205/0x7a0 [ 115.116249] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 115.116516] ? up_read+0x1b/0x30 [ 115.116693] ? tc_setup_cb_destroy+0x116/0x180 [ 115.116934] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 115.117196] refcount_dec_and_mutex_lock+0x35/0x80 [ 115.117451] __tcf_action_put+0x1e/0x70 [ 115.117660] tcf_action_destroy+0x31/0x80 [ 115.117878] tcf_exts_destroy+0x20/0x40 [ 115.118084] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 115.118364] __fl_delete+0x12d/0x180 [cls_flower] [ 115.118617] fl_destroy+0xbd/0x140 [cls_flower] [ 115.118865] tcf_proto_destroy+0x1f/0xc0 [ 115.119075] tcf_chain_flush+0xab/0x170 [ 115.119279] __tcf_block_put+0xd2/0x190 [ 115.119486] clsact_destroy+0xb6/0x380 [sch_ingress] [ 115.119753] __qdisc_destroy+0x51/0x150 [ 115.119963] dev_shutdown+0x78/0x190 [ 115.120157] unregister_netdevice_many_notify+0x226/0x7e0 [ 115.120442] cleanup_net+0x268/0x400 [ 115.120636] ? process_one_work+0x16c/0x4b0 [ 115.120863] process_one_work+0x1d6/0x4b0 [ 115.121086] worker_thread+0x1c1/0x3d0 [ 115.121287] ? __pfx_worker_thread+0x10/0x10 [ 115.121518] kthread+0xda/0x110 [ 115.121688] ? __pfx_kthread+0x10/0x10 [ 115.121890] ret_from_fork+0x31/0x50 [ 115.122085] ? __pfx_kthread+0x10/0x10 [ 115.122286] ret_from_fork_asm+0x1b/0x30 [ 115.122501] [ 193.125697] rcu: INFO: rcu_preempt self-detected stall on CPU [ 193.126036] rcu: 2-....: (182011 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=41280 [ 193.126540] rcu: (t=182045 jiffies g=2201 q=2346 ncpus=4) [ 193.126828] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 193.127271] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 193.127857] Workqueue: netns cleanup_net [ 193.128074] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 193.128366] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 193.129315] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 193.129587] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 193.129958] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 193.130324] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 193.130703] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 193.131069] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 193.131436] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 193.131850] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 193.132148] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 193.132515] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 193.132880] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 193.133246] PKRU: 55555554 [ 193.133391] Call Trace: [ 193.133527] [ 193.133640] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 193.133878] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 193.134120] ? cpuacct_charge+0x3e/0x120 [ 193.134329] ? lock_release+0x1d3/0x270 [ 193.134535] ? lock_acquire+0x179/0x2b0 [ 193.134739] ? cpuacct_account_field+0x23/0xf0 [ 193.134976] ? update_process_times+0x5f/0x90 [ 193.135209] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 193.135488] ? tick_sched_handle+0x33/0x50 [ 193.135703] ? tick_nohz_highres_handler+0x71/0x90 [ 193.135954] ? __hrtimer_run_queues+0x86/0x390 [ 193.136192] ? hrtimer_interrupt+0x100/0x240 [ 193.136421] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 193.136696] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 193.136957] [ 193.137075] [ 193.137191] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 193.137471] ? queued_spin_lock_slowpath+0x36/0x310 [ 193.137730] do_raw_spin_lock+0x9b/0xa0 [ 193.137934] __mutex_lock+0x205/0x7a0 [ 193.138130] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 193.138393] ? up_read+0x1b/0x30 [ 193.138570] ? tc_setup_cb_destroy+0x116/0x180 [ 193.138810] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 193.139070] refcount_dec_and_mutex_lock+0x35/0x80 [ 193.139321] __tcf_action_put+0x1e/0x70 [ 193.139528] tcf_action_destroy+0x31/0x80 [ 193.139741] tcf_exts_destroy+0x20/0x40 [ 193.139944] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 193.140225] __fl_delete+0x12d/0x180 [cls_flower] [ 193.140476] fl_destroy+0xbd/0x140 [cls_flower] [ 193.140725] tcf_proto_destroy+0x1f/0xc0 [ 193.140936] tcf_chain_flush+0xab/0x170 [ 193.141140] __tcf_block_put+0xd2/0x190 [ 193.141345] clsact_destroy+0xb6/0x380 [sch_ingress] [ 193.141609] __qdisc_destroy+0x51/0x150 [ 193.141816] dev_shutdown+0x78/0x190 [ 193.142009] unregister_netdevice_many_notify+0x226/0x7e0 [ 193.142295] cleanup_net+0x268/0x400 [ 193.142488] ? process_one_work+0x16c/0x4b0 [ 193.142713] process_one_work+0x1d6/0x4b0 [ 193.142927] worker_thread+0x1c1/0x3d0 [ 193.143126] ? __pfx_worker_thread+0x10/0x10 [ 193.143355] kthread+0xda/0x110 [ 193.143528] ? __pfx_kthread+0x10/0x10 [ 193.143729] ret_from_fork+0x31/0x50 [ 193.143923] ? __pfx_kthread+0x10/0x10 [ 193.144122] ret_from_fork_asm+0x1b/0x30 [ 193.144334] [ 271.147704] rcu: INFO: rcu_preempt self-detected stall on CPU [ 271.148052] rcu: 2-....: (260016 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=59096 [ 271.148548] rcu: (t=260067 jiffies g=2201 q=2350 ncpus=4) [ 271.148842] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 271.149286] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 271.149873] Workqueue: netns cleanup_net [ 271.150089] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 271.150390] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 271.151336] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 271.151609] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 271.151980] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 271.152350] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 271.152719] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 271.153086] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 271.153454] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 271.153873] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 271.154172] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 271.154539] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 271.154907] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 271.155276] PKRU: 55555554 [ 271.155424] Call Trace: [ 271.155564] [ 271.155682] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 271.155919] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 271.156162] ? lock_acquire+0x179/0x2b0 [ 271.156370] ? cpuacct_account_field+0x23/0xf0 [ 271.156609] ? update_process_times+0x5f/0x90 [ 271.156839] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 271.157118] ? tick_sched_handle+0x33/0x50 [ 271.157333] ? tick_nohz_highres_handler+0x71/0x90 [ 271.157582] ? __hrtimer_run_queues+0x86/0x390 [ 271.157819] ? hrtimer_interrupt+0x100/0x240 [ 271.158045] ? __do_softirq+0x2c2/0x37a [ 271.158248] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 271.158524] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 271.158785] [ 271.158901] [ 271.159016] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 271.159300] ? queued_spin_lock_slowpath+0x36/0x310 [ 271.159557] do_raw_spin_lock+0x9b/0xa0 [ 271.159762] __mutex_lock+0x205/0x7a0 [ 271.159957] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 271.160230] ? up_read+0x1b/0x30 [ 271.160407] ? tc_setup_cb_destroy+0x116/0x180 [ 271.160644] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 271.160905] refcount_dec_and_mutex_lock+0x35/0x80 [ 271.161155] __tcf_action_put+0x1e/0x70 [ 271.161364] tcf_action_destroy+0x31/0x80 [ 271.161576] tcf_exts_destroy+0x20/0x40 [ 271.161781] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 271.162057] __fl_delete+0x12d/0x180 [cls_flower] [ 271.162309] fl_destroy+0xbd/0x140 [cls_flower] [ 271.162552] tcf_proto_destroy+0x1f/0xc0 [ 271.162761] tcf_chain_flush+0xab/0x170 [ 271.162964] __tcf_block_put+0xd2/0x190 [ 271.163170] clsact_destroy+0xb6/0x380 [sch_ingress] [ 271.163434] __qdisc_destroy+0x51/0x150 [ 271.163639] dev_shutdown+0x78/0x190 [ 271.163832] unregister_netdevice_many_notify+0x226/0x7e0 [ 271.164116] cleanup_net+0x268/0x400 [ 271.164309] ? process_one_work+0x16c/0x4b0 [ 271.164534] process_one_work+0x1d6/0x4b0 [ 271.164746] worker_thread+0x1c1/0x3d0 [ 271.164946] ? __pfx_worker_thread+0x10/0x10 [ 271.165173] kthread+0xda/0x110 [ 271.165343] ? __pfx_kthread+0x10/0x10 [ 271.165544] ret_from_fork+0x31/0x50 [ 271.165737] ? __pfx_kthread+0x10/0x10 [ 271.165937] ret_from_fork_asm+0x1b/0x30 [ 271.166149] [ 349.169695] rcu: INFO: rcu_preempt self-detected stall on CPU [ 349.170048] rcu: 2-....: (338021 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=76727 [ 349.170547] rcu: (t=338089 jiffies g=2201 q=2364 ncpus=4) [ 349.170840] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 349.171281] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 349.171866] Workqueue: netns cleanup_net [ 349.172085] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 349.172375] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 349.173319] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 349.173589] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 349.173959] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 349.174325] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 349.174692] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 349.175058] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 349.175427] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 349.175843] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 349.176141] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 349.176510] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 349.176877] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 349.177245] PKRU: 55555554 [ 349.177389] Call Trace: [ 349.177524] [ 349.177640] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 349.177875] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 349.178114] ? cpuacct_charge+0x3e/0x120 [ 349.178324] ? lock_release+0x1d3/0x270 [ 349.178530] ? lock_acquire+0x179/0x2b0 [ 349.178734] ? cpuacct_account_field+0x23/0xf0 [ 349.178969] ? update_process_times+0x5f/0x90 [ 349.179199] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 349.179479] ? tick_sched_handle+0x33/0x50 [ 349.179694] ? tick_nohz_highres_handler+0x71/0x90 [ 349.179954] ? __hrtimer_run_queues+0x86/0x390 [ 349.180189] ? hrtimer_interrupt+0x100/0x240 [ 349.180416] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 349.180688] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 349.180952] [ 349.181069] [ 349.181186] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 349.181465] ? queued_spin_lock_slowpath+0x36/0x310 [ 349.181723] do_raw_spin_lock+0x9b/0xa0 [ 349.181929] __mutex_lock+0x205/0x7a0 [ 349.182124] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 349.182387] ? up_read+0x1b/0x30 [ 349.182562] ? tc_setup_cb_destroy+0x116/0x180 [ 349.182800] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 349.183059] refcount_dec_and_mutex_lock+0x35/0x80 [ 349.183314] __tcf_action_put+0x1e/0x70 [ 349.183520] tcf_action_destroy+0x31/0x80 [ 349.183734] tcf_exts_destroy+0x20/0x40 [ 349.183939] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 349.184215] __fl_delete+0x12d/0x180 [cls_flower] [ 349.184468] fl_destroy+0xbd/0x140 [cls_flower] [ 349.184712] tcf_proto_destroy+0x1f/0xc0 [ 349.184921] tcf_chain_flush+0xab/0x170 [ 349.185123] __tcf_block_put+0xd2/0x190 [ 349.185326] clsact_destroy+0xb6/0x380 [sch_ingress] [ 349.185589] __qdisc_destroy+0x51/0x150 [ 349.185797] dev_shutdown+0x78/0x190 [ 349.185989] unregister_netdevice_many_notify+0x226/0x7e0 [ 349.186271] cleanup_net+0x268/0x400 [ 349.186464] ? process_one_work+0x16c/0x4b0 [ 349.186688] process_one_work+0x1d6/0x4b0 [ 349.186903] worker_thread+0x1c1/0x3d0 [ 349.187102] ? __pfx_worker_thread+0x10/0x10 [ 349.187328] kthread+0xda/0x110 [ 349.187500] ? __pfx_kthread+0x10/0x10 [ 349.187698] ret_from_fork+0x31/0x50 [ 349.187892] ? __pfx_kthread+0x10/0x10 [ 349.188091] ret_from_fork_asm+0x1b/0x30 [ 349.188307] [ 427.191696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 427.192032] rcu: 2-....: (416026 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=94413 [ 427.192528] rcu: (t=416111 jiffies g=2201 q=2364 ncpus=4) [ 427.192815] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 427.193256] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 427.193841] Workqueue: netns cleanup_net [ 427.194052] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 427.194341] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 427.195278] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 427.195547] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 427.195915] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 427.196282] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 427.196649] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 427.197014] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 427.197382] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 427.197800] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 427.198097] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 427.198471] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 427.198838] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 427.199206] PKRU: 55555554 [ 427.199351] Call Trace: [ 427.199494] [ 427.199609] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 427.199845] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 427.200085] ? cpuacct_charge+0x3e/0x120 [ 427.200295] ? lock_release+0x1d3/0x270 [ 427.200500] ? lock_acquire+0x179/0x2b0 [ 427.200703] ? cpuacct_account_field+0x23/0xf0 [ 427.200938] ? update_process_times+0x5f/0x90 [ 427.201167] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 427.201446] ? tick_sched_handle+0x33/0x50 [ 427.201661] ? tick_nohz_highres_handler+0x71/0x90 [ 427.201913] ? __hrtimer_run_queues+0x86/0x390 [ 427.202149] ? hrtimer_interrupt+0x100/0x240 [ 427.202374] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 427.202646] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 427.202907] [ 427.203022] [ 427.203139] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 427.203417] ? queued_spin_lock_slowpath+0x36/0x310 [ 427.203674] do_raw_spin_lock+0x9b/0xa0 [ 427.203881] __mutex_lock+0x205/0x7a0 [ 427.204076] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 427.204338] ? up_read+0x1b/0x30 [ 427.204514] ? tc_setup_cb_destroy+0x116/0x180 [ 427.204750] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 427.205008] refcount_dec_and_mutex_lock+0x35/0x80 [ 427.205259] __tcf_action_put+0x1e/0x70 [ 427.205465] tcf_action_destroy+0x31/0x80 [ 427.205678] tcf_exts_destroy+0x20/0x40 [ 427.205882] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 427.206158] __fl_delete+0x12d/0x180 [cls_flower] [ 427.206409] fl_destroy+0xbd/0x140 [cls_flower] [ 427.206652] tcf_proto_destroy+0x1f/0xc0 [ 427.206862] tcf_chain_flush+0xab/0x170 [ 427.207064] __tcf_block_put+0xd2/0x190 [ 427.207269] clsact_destroy+0xb6/0x380 [sch_ingress] [ 427.207531] __qdisc_destroy+0x51/0x150 [ 427.207740] dev_shutdown+0x78/0x190 [ 427.207932] unregister_netdevice_many_notify+0x226/0x7e0 [ 427.208214] cleanup_net+0x268/0x400 [ 427.208407] ? process_one_work+0x16c/0x4b0 [ 427.208629] process_one_work+0x1d6/0x4b0 [ 427.208844] worker_thread+0x1c1/0x3d0 [ 427.209044] ? __pfx_worker_thread+0x10/0x10 [ 427.209273] kthread+0xda/0x110 [ 427.209450] ? __pfx_kthread+0x10/0x10 [ 427.209649] ret_from_fork+0x31/0x50 [ 427.209852] ? __pfx_kthread+0x10/0x10 [ 427.210051] ret_from_fork_asm+0x1b/0x30 [ 427.210264] [ 505.213696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 505.214037] rcu: 2-....: (494031 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=112376 [ 505.214541] rcu: (t=494133 jiffies g=2201 q=2367 ncpus=4) [ 505.214830] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 505.215270] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 505.215856] Workqueue: netns cleanup_net [ 505.216070] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 505.216357] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 505.217297] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 505.217567] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 505.217932] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 505.218297] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 505.218660] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 505.219040] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 505.219407] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 505.219818] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 505.220115] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 505.220481] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 505.220847] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 505.221209] PKRU: 55555554 [ 505.221355] Call Trace: [ 505.221488] [ 505.221602] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 505.221835] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 505.222076] ? cpuacct_charge+0x3e/0x120 [ 505.222284] ? lock_release+0x1d3/0x270 [ 505.222490] ? lock_acquire+0x179/0x2b0 [ 505.222695] ? cpuacct_account_field+0x23/0xf0 [ 505.222928] ? update_process_times+0x5f/0x90 [ 505.223161] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 505.223436] ? tick_sched_handle+0x33/0x50 [ 505.223654] ? tick_nohz_highres_handler+0x71/0x90 [ 505.223904] ? __hrtimer_run_queues+0x86/0x390 [ 505.224138] ? hrtimer_interrupt+0x100/0x240 [ 505.224366] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 505.224639] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 505.224898] [ 505.225014] [ 505.225131] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 505.225410] ? queued_spin_lock_slowpath+0x36/0x310 [ 505.225666] do_raw_spin_lock+0x9b/0xa0 [ 505.225871] __mutex_lock+0x205/0x7a0 [ 505.226067] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 505.226330] ? up_read+0x1b/0x30 [ 505.226504] ? tc_setup_cb_destroy+0x116/0x180 [ 505.226743] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 505.227002] refcount_dec_and_mutex_lock+0x35/0x80 [ 505.227253] __tcf_action_put+0x1e/0x70 [ 505.227459] tcf_action_destroy+0x31/0x80 [ 505.227671] tcf_exts_destroy+0x20/0x40 [ 505.227875] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 505.228151] __fl_delete+0x12d/0x180 [cls_flower] [ 505.228403] fl_destroy+0xbd/0x140 [cls_flower] [ 505.228645] tcf_proto_destroy+0x1f/0xc0 [ 505.228854] tcf_chain_flush+0xab/0x170 [ 505.229065] __tcf_block_put+0xd2/0x190 [ 505.229268] clsact_destroy+0xb6/0x380 [sch_ingress] [ 505.229531] __qdisc_destroy+0x51/0x150 [ 505.229738] dev_shutdown+0x78/0x190 [ 505.229930] unregister_netdevice_many_notify+0x226/0x7e0 [ 505.230214] cleanup_net+0x268/0x400 [ 505.230406] ? process_one_work+0x16c/0x4b0 [ 505.230627] process_one_work+0x1d6/0x4b0 [ 505.230839] worker_thread+0x1c1/0x3d0 [ 505.231039] ? __pfx_worker_thread+0x10/0x10 [ 505.231263] kthread+0xda/0x110 [ 505.231435] ? __pfx_kthread+0x10/0x10 [ 505.231633] ret_from_fork+0x31/0x50 [ 505.231827] ? __pfx_kthread+0x10/0x10 [ 505.232023] ret_from_fork_asm+0x1b/0x30 [ 505.232234] [ 583.235695] rcu: INFO: rcu_preempt self-detected stall on CPU [ 583.236031] rcu: 2-....: (572036 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=130043 [ 583.236539] rcu: (t=572155 jiffies g=2201 q=2370 ncpus=4) [ 583.236834] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 583.237279] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 583.237867] Workqueue: netns cleanup_net [ 583.238085] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 583.238376] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 583.239328] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 583.239601] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 583.239970] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 583.240339] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 583.240708] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 583.241073] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 583.241441] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 583.241858] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 583.242157] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 583.242526] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 583.242896] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 583.243264] PKRU: 55555554 [ 583.243409] Call Trace: [ 583.243545] [ 583.243669] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 583.243906] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 583.244147] ? cpuacct_charge+0x3e/0x120 [ 583.244357] ? lock_release+0x1d3/0x270 [ 583.244561] ? lock_acquire+0x179/0x2b0 [ 583.244766] ? cpuacct_account_field+0x23/0xf0 [ 583.245000] ? update_process_times+0x5f/0x90 [ 583.245233] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 583.245511] ? tick_sched_handle+0x33/0x50 [ 583.245727] ? tick_nohz_highres_handler+0x71/0x90 [ 583.245978] ? __hrtimer_run_queues+0x86/0x390 [ 583.246215] ? hrtimer_interrupt+0x100/0x240 [ 583.246443] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 583.246716] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 583.246977] [ 583.247094] [ 583.247210] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 583.247490] ? queued_spin_lock_slowpath+0x36/0x310 [ 583.247746] do_raw_spin_lock+0x9b/0xa0 [ 583.247950] __mutex_lock+0x205/0x7a0 [ 583.248145] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 583.248408] ? up_read+0x1b/0x30 [ 583.248589] ? tc_setup_cb_destroy+0x116/0x180 [ 583.248829] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 583.249090] refcount_dec_and_mutex_lock+0x35/0x80 [ 583.249342] __tcf_action_put+0x1e/0x70 [ 583.249550] tcf_action_destroy+0x31/0x80 [ 583.249767] tcf_exts_destroy+0x20/0x40 [ 583.249973] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 583.250252] __fl_delete+0x12d/0x180 [cls_flower] [ 583.250503] fl_destroy+0xbd/0x140 [cls_flower] [ 583.250745] tcf_proto_destroy+0x1f/0xc0 [ 583.250955] tcf_chain_flush+0xab/0x170 [ 583.251158] __tcf_block_put+0xd2/0x190 [ 583.251361] clsact_destroy+0xb6/0x380 [sch_ingress] [ 583.251624] __qdisc_destroy+0x51/0x150 [ 583.251831] dev_shutdown+0x78/0x190 [ 583.252023] unregister_netdevice_many_notify+0x226/0x7e0 [ 583.252308] cleanup_net+0x268/0x400 [ 583.252501] ? process_one_work+0x16c/0x4b0 [ 583.252723] process_one_work+0x1d6/0x4b0 [ 583.252936] worker_thread+0x1c1/0x3d0 [ 583.253138] ? __pfx_worker_thread+0x10/0x10 [ 583.253363] kthread+0xda/0x110 [ 583.253537] ? __pfx_kthread+0x10/0x10 [ 583.253735] ret_from_fork+0x31/0x50 [ 583.253929] ? __pfx_kthread+0x10/0x10 [ 583.254128] ret_from_fork_asm+0x1b/0x30 [ 583.254340] [ 661.257695] rcu: INFO: rcu_preempt self-detected stall on CPU [ 661.258033] rcu: 2-....: (650041 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=147847 [ 661.258545] rcu: (t=650177 jiffies g=2201 q=2371 ncpus=4) [ 661.258833] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 661.259276] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 661.259863] Workqueue: netns cleanup_net [ 661.260076] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 661.260365] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 661.261316] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 661.261587] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 661.261958] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 661.262328] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 661.262709] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 661.263077] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 661.263447] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 661.263863] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 661.264162] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 661.264532] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 661.264900] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 661.265267] PKRU: 55555554 [ 661.265413] Call Trace: [ 661.265548] [ 661.265663] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 661.265897] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 661.266138] ? cpuacct_charge+0x3e/0x120 [ 661.266347] ? lock_release+0x1d3/0x270 [ 661.266560] ? lock_acquire+0x179/0x2b0 [ 661.266764] ? cpuacct_account_field+0x23/0xf0 [ 661.266999] ? update_process_times+0x5f/0x90 [ 661.267231] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 661.267507] ? tick_sched_handle+0x33/0x50 [ 661.267725] ? tick_nohz_highres_handler+0x71/0x90 [ 661.267977] ? __hrtimer_run_queues+0x86/0x390 [ 661.268217] ? hrtimer_interrupt+0x100/0x240 [ 661.268446] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 661.268719] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 661.268978] [ 661.269095] [ 661.269211] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 661.269488] ? queued_spin_lock_slowpath+0x36/0x310 [ 661.269746] do_raw_spin_lock+0x9b/0xa0 [ 661.269951] __mutex_lock+0x205/0x7a0 [ 661.270151] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 661.270413] ? up_read+0x1b/0x30 [ 661.270586] ? tc_setup_cb_destroy+0x116/0x180 [ 661.270825] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 661.271086] refcount_dec_and_mutex_lock+0x35/0x80 [ 661.271337] __tcf_action_put+0x1e/0x70 [ 661.271543] tcf_action_destroy+0x31/0x80 [ 661.271757] tcf_exts_destroy+0x20/0x40 [ 661.271960] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 661.272237] __fl_delete+0x12d/0x180 [cls_flower] [ 661.272488] fl_destroy+0xbd/0x140 [cls_flower] [ 661.272730] tcf_proto_destroy+0x1f/0xc0 [ 661.272938] tcf_chain_flush+0xab/0x170 [ 661.273142] __tcf_block_put+0xd2/0x190 [ 661.273344] clsact_destroy+0xb6/0x380 [sch_ingress] [ 661.273606] __qdisc_destroy+0x51/0x150 [ 661.273813] dev_shutdown+0x78/0x190 [ 661.274006] unregister_netdevice_many_notify+0x226/0x7e0 [ 661.274289] cleanup_net+0x268/0x400 [ 661.274480] ? process_one_work+0x16c/0x4b0 [ 661.274702] process_one_work+0x1d6/0x4b0 [ 661.274915] worker_thread+0x1c1/0x3d0 [ 661.275115] ? __pfx_worker_thread+0x10/0x10 [ 661.275339] kthread+0xda/0x110 [ 661.275511] ? __pfx_kthread+0x10/0x10 [ 661.275710] ret_from_fork+0x31/0x50 [ 661.275903] ? __pfx_kthread+0x10/0x10 [ 661.276102] ret_from_fork_asm+0x1b/0x30 [ 661.276314] [ 739.279696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 739.280047] rcu: 2-....: (728046 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=165479 [ 739.280556] rcu: (t=728199 jiffies g=2201 q=2371 ncpus=4) [ 739.280847] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 739.281290] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 739.281877] Workqueue: netns cleanup_net [ 739.282091] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 739.282384] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 739.283330] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 739.283601] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 739.283972] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 739.284339] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 739.284706] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 739.285072] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 739.285442] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 739.285857] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 739.286156] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 739.286524] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 739.286891] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 739.287257] PKRU: 55555554 [ 739.287403] Call Trace: [ 739.287537] [ 739.287652] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 739.287893] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 739.288135] ? cpuacct_charge+0x3e/0x120 [ 739.288345] ? lock_release+0x1d3/0x270 [ 739.288556] ? lock_acquire+0x179/0x2b0 [ 739.288761] ? cpuacct_account_field+0x23/0xf0 [ 739.288996] ? update_process_times+0x5f/0x90 [ 739.289228] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 739.289506] ? tick_sched_handle+0x33/0x50 [ 739.289725] ? tick_nohz_highres_handler+0x71/0x90 [ 739.289978] ? __hrtimer_run_queues+0x86/0x390 [ 739.290212] ? hrtimer_interrupt+0x100/0x240 [ 739.290441] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 739.290715] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 739.290975] [ 739.291092] [ 739.291209] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 739.291488] ? queued_spin_lock_slowpath+0x36/0x310 [ 739.291747] do_raw_spin_lock+0x9b/0xa0 [ 739.291954] __mutex_lock+0x205/0x7a0 [ 739.292151] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 739.292415] ? up_read+0x1b/0x30 [ 739.292589] ? tc_setup_cb_destroy+0x116/0x180 [ 739.292830] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 739.293090] refcount_dec_and_mutex_lock+0x35/0x80 [ 739.293342] __tcf_action_put+0x1e/0x70 [ 739.293549] tcf_action_destroy+0x31/0x80 [ 739.293763] tcf_exts_destroy+0x20/0x40 [ 739.293973] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 739.294250] __fl_delete+0x12d/0x180 [cls_flower] [ 739.294507] fl_destroy+0xbd/0x140 [cls_flower] [ 739.294751] tcf_proto_destroy+0x1f/0xc0 [ 739.294960] tcf_chain_flush+0xab/0x170 [ 739.295162] __tcf_block_put+0xd2/0x190 [ 739.295366] clsact_destroy+0xb6/0x380 [sch_ingress] [ 739.295629] __qdisc_destroy+0x51/0x150 [ 739.295838] dev_shutdown+0x78/0x190 [ 739.296030] unregister_netdevice_many_notify+0x226/0x7e0 [ 739.296314] cleanup_net+0x268/0x400 [ 739.296507] ? process_one_work+0x16c/0x4b0 [ 739.296728] process_one_work+0x1d6/0x4b0 [ 739.296943] worker_thread+0x1c1/0x3d0 [ 739.297145] ? __pfx_worker_thread+0x10/0x10 [ 739.297369] kthread+0xda/0x110 [ 739.297542] ? __pfx_kthread+0x10/0x10 [ 739.297741] ret_from_fork+0x31/0x50 [ 739.297941] ? __pfx_kthread+0x10/0x10 [ 739.298139] ret_from_fork_asm+0x1b/0x30 [ 739.298353] [ 817.301696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 817.302033] rcu: 2-....: (806051 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=183199 [ 817.302538] rcu: (t=806221 jiffies g=2201 q=2371 ncpus=4) [ 817.302824] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 817.303266] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 817.303853] Workqueue: netns cleanup_net [ 817.304068] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 817.304356] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 817.305297] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 817.305566] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 817.305934] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 817.306298] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 817.306663] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 817.307030] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 817.307401] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 817.307813] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 817.308110] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 817.308476] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 817.308841] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 817.309203] PKRU: 55555554 [ 817.309349] Call Trace: [ 817.309483] [ 817.309597] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 817.309833] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 817.310074] ? cpuacct_charge+0x3e/0x120 [ 817.310282] ? lock_release+0x1d3/0x270 [ 817.310487] ? lock_acquire+0x179/0x2b0 [ 817.310692] ? cpuacct_account_field+0x23/0xf0 [ 817.310927] ? update_process_times+0x5f/0x90 [ 817.311160] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 817.311436] ? tick_sched_handle+0x33/0x50 [ 817.311653] ? tick_nohz_highres_handler+0x71/0x90 [ 817.311903] ? __hrtimer_run_queues+0x86/0x390 [ 817.312140] ? hrtimer_interrupt+0x100/0x240 [ 817.312369] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 817.312643] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 817.312904] [ 817.313021] [ 817.313139] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 817.313416] ? queued_spin_lock_slowpath+0x36/0x310 [ 817.313673] do_raw_spin_lock+0x9b/0xa0 [ 817.313878] __mutex_lock+0x205/0x7a0 [ 817.314073] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 817.314337] ? up_read+0x1b/0x30 [ 817.314513] ? tc_setup_cb_destroy+0x116/0x180 [ 817.314752] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 817.315011] refcount_dec_and_mutex_lock+0x35/0x80 [ 817.315264] __tcf_action_put+0x1e/0x70 [ 817.315471] tcf_action_destroy+0x31/0x80 [ 817.315683] tcf_exts_destroy+0x20/0x40 [ 817.315890] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 817.316167] __fl_delete+0x12d/0x180 [cls_flower] [ 817.316419] fl_destroy+0xbd/0x140 [cls_flower] [ 817.316660] tcf_proto_destroy+0x1f/0xc0 [ 817.316871] tcf_chain_flush+0xab/0x170 [ 817.317075] __tcf_block_put+0xd2/0x190 [ 817.317279] clsact_destroy+0xb6/0x380 [sch_ingress] [ 817.317550] __qdisc_destroy+0x51/0x150 [ 817.317756] dev_shutdown+0x78/0x190 [ 817.317949] unregister_netdevice_many_notify+0x226/0x7e0 [ 817.318236] cleanup_net+0x268/0x400 [ 817.318430] ? process_one_work+0x16c/0x4b0 [ 817.318652] process_one_work+0x1d6/0x4b0 [ 817.318866] worker_thread+0x1c1/0x3d0 [ 817.319071] ? __pfx_worker_thread+0x10/0x10 [ 817.319297] kthread+0xda/0x110 [ 817.319470] ? __pfx_kthread+0x10/0x10 [ 817.319668] ret_from_fork+0x31/0x50 [ 817.319863] ? __pfx_kthread+0x10/0x10 [ 817.320062] ret_from_fork_asm+0x1b/0x30 [ 817.320273] [ 895.323696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 895.324033] rcu: 2-....: (884056 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=200784 [ 895.324538] rcu: (t=884243 jiffies g=2201 q=2373 ncpus=4) [ 895.324828] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 895.325271] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 895.325857] Workqueue: netns cleanup_net [ 895.326071] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 895.326360] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 895.327316] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 895.327587] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 895.327955] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 895.328323] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 895.328693] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 895.329062] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 895.329432] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 895.329848] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 895.330146] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 895.330514] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 895.330885] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 895.331252] PKRU: 55555554 [ 895.331398] Call Trace: [ 895.331533] [ 895.331647] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 895.331883] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 895.332124] ? cpuacct_charge+0x3e/0x120 [ 895.332332] ? lock_release+0x1d3/0x270 [ 895.332541] ? lock_acquire+0x179/0x2b0 [ 895.332747] ? cpuacct_account_field+0x23/0xf0 [ 895.332981] ? update_process_times+0x5f/0x90 [ 895.333213] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 895.333491] ? tick_sched_handle+0x33/0x50 [ 895.333710] ? tick_nohz_highres_handler+0x71/0x90 [ 895.333961] ? __hrtimer_run_queues+0x86/0x390 [ 895.334195] ? hrtimer_interrupt+0x100/0x240 [ 895.334424] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 895.334697] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 895.334957] [ 895.335074] [ 895.335191] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 895.335470] ? queued_spin_lock_slowpath+0x36/0x310 [ 895.335729] do_raw_spin_lock+0x9b/0xa0 [ 895.335935] __mutex_lock+0x205/0x7a0 [ 895.336132] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 895.336400] ? up_read+0x1b/0x30 [ 895.336574] ? tc_setup_cb_destroy+0x116/0x180 [ 895.336814] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 895.337079] refcount_dec_and_mutex_lock+0x35/0x80 [ 895.337330] __tcf_action_put+0x1e/0x70 [ 895.337535] tcf_action_destroy+0x31/0x80 [ 895.337749] tcf_exts_destroy+0x20/0x40 [ 895.337953] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 895.338231] __fl_delete+0x12d/0x180 [cls_flower] [ 895.338483] fl_destroy+0xbd/0x140 [cls_flower] [ 895.338726] tcf_proto_destroy+0x1f/0xc0 [ 895.338933] tcf_chain_flush+0xab/0x170 [ 895.339136] __tcf_block_put+0xd2/0x190 [ 895.339343] clsact_destroy+0xb6/0x380 [sch_ingress] [ 895.339605] __qdisc_destroy+0x51/0x150 [ 895.339814] dev_shutdown+0x78/0x190 [ 895.340006] unregister_netdevice_many_notify+0x226/0x7e0 [ 895.340296] cleanup_net+0x268/0x400 [ 895.340489] ? process_one_work+0x16c/0x4b0 [ 895.340711] process_one_work+0x1d6/0x4b0 [ 895.340926] worker_thread+0x1c1/0x3d0 [ 895.341126] ? __pfx_worker_thread+0x10/0x10 [ 895.341351] kthread+0xda/0x110 [ 895.341524] ? __pfx_kthread+0x10/0x10 [ 895.341724] ret_from_fork+0x31/0x50 [ 895.341916] ? __pfx_kthread+0x10/0x10 [ 895.342115] ret_from_fork_asm+0x1b/0x30 [ 895.342328] [ 973.345696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 973.346038] rcu: 2-....: (962061 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=218417 [ 973.346553] rcu: (t=962265 jiffies g=2201 q=2374 ncpus=4) [ 973.346857] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 973.347301] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 973.347894] Workqueue: netns cleanup_net [ 973.348113] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 973.348404] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 973.349355] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 973.349626] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 973.349993] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 973.350358] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 973.350727] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 973.351095] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 973.351463] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 973.351878] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 973.352177] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 973.352544] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 973.352912] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 973.353278] PKRU: 55555554 [ 973.353424] Call Trace: [ 973.353560] [ 973.353673] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 973.353913] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 973.354155] ? cpuacct_charge+0x3e/0x120 [ 973.354364] ? lock_release+0x1d3/0x270 [ 973.354570] ? lock_acquire+0x179/0x2b0 [ 973.354776] ? cpuacct_account_field+0x23/0xf0 [ 973.355012] ? update_process_times+0x5f/0x90 [ 973.355246] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 973.355525] ? tick_sched_handle+0x33/0x50 [ 973.355743] ? tick_nohz_highres_handler+0x71/0x90 [ 973.355994] ? __hrtimer_run_queues+0x86/0x390 [ 973.356233] ? hrtimer_interrupt+0x100/0x240 [ 973.356463] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 973.356746] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 973.357007] [ 973.357125] [ 973.357244] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 973.357532] ? queued_spin_lock_slowpath+0x36/0x310 [ 973.357791] do_raw_spin_lock+0x9b/0xa0 [ 973.357996] __mutex_lock+0x205/0x7a0 [ 973.358192] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 973.358456] ? up_read+0x1b/0x30 [ 973.358633] ? tc_setup_cb_destroy+0x116/0x180 [ 973.358874] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 973.359135] refcount_dec_and_mutex_lock+0x35/0x80 [ 973.359387] __tcf_action_put+0x1e/0x70 [ 973.359594] tcf_action_destroy+0x31/0x80 [ 973.359808] tcf_exts_destroy+0x20/0x40 [ 973.360013] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 973.360293] __fl_delete+0x12d/0x180 [cls_flower] [ 973.360546] fl_destroy+0xbd/0x140 [cls_flower] [ 973.360789] tcf_proto_destroy+0x1f/0xc0 [ 973.361000] tcf_chain_flush+0xab/0x170 [ 973.361205] __tcf_block_put+0xd2/0x190 [ 973.361414] clsact_destroy+0xb6/0x380 [sch_ingress] [ 973.361678] __qdisc_destroy+0x51/0x150 [ 973.361886] dev_shutdown+0x78/0x190 [ 973.362079] unregister_netdevice_many_notify+0x226/0x7e0 [ 973.362366] cleanup_net+0x268/0x400 [ 973.362559] ? process_one_work+0x16c/0x4b0 [ 973.362784] process_one_work+0x1d6/0x4b0 [ 973.362997] worker_thread+0x1c1/0x3d0 [ 973.363199] ? __pfx_worker_thread+0x10/0x10 [ 973.363427] kthread+0xda/0x110 [ 973.363600] ? __pfx_kthread+0x10/0x10 [ 973.363801] ret_from_fork+0x31/0x50 [ 973.363996] ? __pfx_kthread+0x10/0x10 [ 973.364196] ret_from_fork_asm+0x1b/0x30 [ 973.364409] [ 1051.367696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 1051.368036] rcu: 2-....: (1040066 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=235897 [ 1051.368546] rcu: (t=1040287 jiffies g=2201 q=2374 ncpus=4) [ 1051.368843] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 1051.369287] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1051.369872] Workqueue: netns cleanup_net [ 1051.370088] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 1051.370378] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 1051.371327] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 1051.371598] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 1051.371970] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 1051.372338] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 1051.372704] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 1051.373074] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 1051.373445] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 1051.373859] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1051.374160] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 1051.374529] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1051.374898] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1051.375264] PKRU: 55555554 [ 1051.375413] Call Trace: [ 1051.375549] [ 1051.375664] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 1051.375902] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 1051.376150] ? cpuacct_charge+0x3e/0x120 [ 1051.376360] ? lock_release+0x1d3/0x270 [ 1051.376568] ? lock_acquire+0x179/0x2b0 [ 1051.376774] ? cpuacct_account_field+0x23/0xf0 [ 1051.377008] ? update_process_times+0x5f/0x90 [ 1051.377242] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 1051.377519] ? tick_sched_handle+0x33/0x50 [ 1051.377738] ? tick_nohz_highres_handler+0x71/0x90 [ 1051.377989] ? __hrtimer_run_queues+0x86/0x390 [ 1051.378225] ? hrtimer_interrupt+0x100/0x240 [ 1051.378454] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 1051.378729] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 1051.378991] [ 1051.379108] [ 1051.379225] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 1051.379506] ? queued_spin_lock_slowpath+0x36/0x310 [ 1051.379764] do_raw_spin_lock+0x9b/0xa0 [ 1051.379969] __mutex_lock+0x205/0x7a0 [ 1051.380166] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1051.380431] ? up_read+0x1b/0x30 [ 1051.380607] ? tc_setup_cb_destroy+0x116/0x180 [ 1051.380848] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1051.381109] refcount_dec_and_mutex_lock+0x35/0x80 [ 1051.381363] __tcf_action_put+0x1e/0x70 [ 1051.381569] tcf_action_destroy+0x31/0x80 [ 1051.381784] tcf_exts_destroy+0x20/0x40 [ 1051.381991] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 1051.382268] __fl_delete+0x12d/0x180 [cls_flower] [ 1051.382521] fl_destroy+0xbd/0x140 [cls_flower] [ 1051.382766] tcf_proto_destroy+0x1f/0xc0 [ 1051.382977] tcf_chain_flush+0xab/0x170 [ 1051.383181] __tcf_block_put+0xd2/0x190 [ 1051.383385] clsact_destroy+0xb6/0x380 [sch_ingress] [ 1051.383650] __qdisc_destroy+0x51/0x150 [ 1051.383857] dev_shutdown+0x78/0x190 [ 1051.384051] unregister_netdevice_many_notify+0x226/0x7e0 [ 1051.384337] cleanup_net+0x268/0x400 [ 1051.384531] ? process_one_work+0x16c/0x4b0 [ 1051.384755] process_one_work+0x1d6/0x4b0 [ 1051.384969] worker_thread+0x1c1/0x3d0 [ 1051.385171] ? __pfx_worker_thread+0x10/0x10 [ 1051.385398] kthread+0xda/0x110 [ 1051.385569] ? __pfx_kthread+0x10/0x10 [ 1051.385770] ret_from_fork+0x31/0x50 [ 1051.385965] ? __pfx_kthread+0x10/0x10 [ 1051.386169] ret_from_fork_asm+0x1b/0x30 [ 1051.386382] [ 1129.389696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 1129.390032] rcu: 2-....: (1118071 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=253833 [ 1129.390546] rcu: (t=1118309 jiffies g=2201 q=2376 ncpus=4) [ 1129.390841] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 1129.391286] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1129.391876] Workqueue: netns cleanup_net [ 1129.392093] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 1129.392383] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 1129.393331] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 1129.393603] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 1129.393974] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 1129.394343] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 1129.394709] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 1129.395077] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 1129.395447] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 1129.395872] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1129.396173] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 1129.396542] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1129.396912] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1129.397279] PKRU: 55555554 [ 1129.397427] Call Trace: [ 1129.397563] [ 1129.397678] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 1129.397916] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 1129.398159] ? cpuacct_charge+0x3e/0x120 [ 1129.398370] ? lock_release+0x1d3/0x270 [ 1129.398577] ? lock_acquire+0x179/0x2b0 [ 1129.398784] ? cpuacct_account_field+0x23/0xf0 [ 1129.399019] ? update_process_times+0x5f/0x90 [ 1129.399254] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 1129.399533] ? tick_sched_handle+0x33/0x50 [ 1129.399753] ? tick_nohz_highres_handler+0x71/0x90 [ 1129.400006] ? __hrtimer_run_queues+0x86/0x390 [ 1129.400242] ? hrtimer_interrupt+0x100/0x240 [ 1129.400473] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 1129.400752] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 1129.401015] [ 1129.401133] [ 1129.401251] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 1129.401532] ? queued_spin_lock_slowpath+0x36/0x310 [ 1129.401794] do_raw_spin_lock+0x9b/0xa0 [ 1129.402000] __mutex_lock+0x205/0x7a0 [ 1129.402198] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1129.402464] ? up_read+0x1b/0x30 [ 1129.402640] ? tc_setup_cb_destroy+0x116/0x180 [ 1129.402881] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1129.403143] refcount_dec_and_mutex_lock+0x35/0x80 [ 1129.403398] __tcf_action_put+0x1e/0x70 [ 1129.403606] tcf_action_destroy+0x31/0x80 [ 1129.403822] tcf_exts_destroy+0x20/0x40 [ 1129.404029] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 1129.404307] __fl_delete+0x12d/0x180 [cls_flower] [ 1129.404560] fl_destroy+0xbd/0x140 [cls_flower] [ 1129.404804] tcf_proto_destroy+0x1f/0xc0 [ 1129.405015] tcf_chain_flush+0xab/0x170 [ 1129.405219] __tcf_block_put+0xd2/0x190 [ 1129.405425] clsact_destroy+0xb6/0x380 [sch_ingress] [ 1129.405696] __qdisc_destroy+0x51/0x150 [ 1129.405906] dev_shutdown+0x78/0x190 [ 1129.406099] unregister_netdevice_many_notify+0x226/0x7e0 [ 1129.406387] cleanup_net+0x268/0x400 [ 1129.406582] ? process_one_work+0x16c/0x4b0 [ 1129.406807] process_one_work+0x1d6/0x4b0 [ 1129.407022] worker_thread+0x1c1/0x3d0 [ 1129.407224] ? __pfx_worker_thread+0x10/0x10 [ 1129.407452] kthread+0xda/0x110 [ 1129.407625] ? __pfx_kthread+0x10/0x10 [ 1129.407826] ret_from_fork+0x31/0x50 [ 1129.408022] ? __pfx_kthread+0x10/0x10 [ 1129.408222] ret_from_fork_asm+0x1b/0x30 [ 1129.408435] [ 1207.411696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 1207.412038] rcu: 2-....: (1196076 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=271512 [ 1207.412555] rcu: (t=1196331 jiffies g=2201 q=2377 ncpus=4) [ 1207.412851] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 1207.413296] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1207.413891] Workqueue: netns cleanup_net [ 1207.414108] RIP: 0010:queued_spin_lock_slowpath+0x19/0x310 [ 1207.414406] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 41 55 41 54 55 48 89 fd 53 66 90 ba 01 00 00 00 <8b> 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d [ 1207.415366] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 1207.415639] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 1207.416009] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 1207.416380] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 1207.416748] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 1207.417118] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 1207.417493] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 1207.417910] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1207.418211] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 1207.418583] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1207.418952] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1207.419319] PKRU: 55555554 [ 1207.419467] Call Trace: [ 1207.419602] [ 1207.419718] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 1207.419953] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 1207.420195] ? cpuacct_charge+0x3e/0x120 [ 1207.420405] ? lock_release+0x1d3/0x270 [ 1207.420612] ? lock_acquire+0x179/0x2b0 [ 1207.420819] ? cpuacct_account_field+0x23/0xf0 [ 1207.421052] ? update_process_times+0x5f/0x90 [ 1207.421287] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 1207.421564] ? tick_sched_handle+0x33/0x50 [ 1207.421783] ? tick_nohz_highres_handler+0x71/0x90 [ 1207.422035] ? __hrtimer_run_queues+0x86/0x390 [ 1207.422271] ? hrtimer_interrupt+0x100/0x240 [ 1207.422500] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 1207.422774] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 1207.423035] [ 1207.423152] [ 1207.423270] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 1207.423550] ? queued_spin_lock_slowpath+0x19/0x310 [ 1207.423808] do_raw_spin_lock+0x9b/0xa0 [ 1207.424013] __mutex_lock+0x205/0x7a0 [ 1207.424210] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1207.424474] ? up_read+0x1b/0x30 [ 1207.424650] ? tc_setup_cb_destroy+0x116/0x180 [ 1207.424890] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1207.425150] refcount_dec_and_mutex_lock+0x35/0x80 [ 1207.425414] __tcf_action_put+0x1e/0x70 [ 1207.425621] tcf_action_destroy+0x31/0x80 [ 1207.425836] tcf_exts_destroy+0x20/0x40 [ 1207.426042] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 1207.426320] __fl_delete+0x12d/0x180 [cls_flower] [ 1207.426577] fl_destroy+0xbd/0x140 [cls_flower] [ 1207.426834] tcf_proto_destroy+0x1f/0xc0 [ 1207.427050] tcf_chain_flush+0xab/0x170 [ 1207.427253] __tcf_block_put+0xd2/0x190 [ 1207.427458] clsact_destroy+0xb6/0x380 [sch_ingress] [ 1207.427723] __qdisc_destroy+0x51/0x150 [ 1207.427929] dev_shutdown+0x78/0x190 [ 1207.428122] unregister_netdevice_many_notify+0x226/0x7e0 [ 1207.428409] cleanup_net+0x268/0x400 [ 1207.428602] ? process_one_work+0x16c/0x4b0 [ 1207.428824] process_one_work+0x1d6/0x4b0 [ 1207.429037] worker_thread+0x1c1/0x3d0 [ 1207.429239] ? __pfx_worker_thread+0x10/0x10 [ 1207.429465] kthread+0xda/0x110 [ 1207.429642] ? __pfx_kthread+0x10/0x10 [ 1207.429841] ret_from_fork+0x31/0x50 [ 1207.430036] ? __pfx_kthread+0x10/0x10 [ 1207.430233] ret_from_fork_asm+0x1b/0x30 [ 1207.430446] [ 1285.432697] rcu: INFO: rcu_preempt self-detected stall on CPU [ 1285.433036] rcu: 2-....: (1274080 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=289297 [ 1285.433542] rcu: (t=1274352 jiffies g=2201 q=2378 ncpus=4) [ 1285.433836] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 1285.434277] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1285.434861] Workqueue: netns cleanup_net [ 1285.435083] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 1285.435375] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 1285.436320] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 1285.436591] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 1285.436960] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 1285.437333] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 1285.437699] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 1285.438064] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 1285.438433] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 1285.438849] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1285.439145] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 1285.439514] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1285.439884] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1285.440251] PKRU: 55555554 [ 1285.440395] Call Trace: [ 1285.440530] [ 1285.440646] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 1285.440885] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 1285.441126] ? cpuacct_charge+0x3e/0x120 [ 1285.441338] ? lock_release+0x1d3/0x270 [ 1285.441545] ? lock_acquire+0x179/0x2b0 [ 1285.441768] ? cpuacct_account_field+0x23/0xf0 [ 1285.442005] ? update_process_times+0x5f/0x90 [ 1285.442237] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 1285.442518] ? tick_sched_handle+0x33/0x50 [ 1285.442735] ? tick_nohz_highres_handler+0x71/0x90 [ 1285.442988] ? __hrtimer_run_queues+0x86/0x390 [ 1285.443226] ? hrtimer_interrupt+0x100/0x240 [ 1285.443453] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 1285.443727] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 1285.443990] [ 1285.444106] [ 1285.444222] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 1285.444502] ? queued_spin_lock_slowpath+0x36/0x310 [ 1285.444760] do_raw_spin_lock+0x9b/0xa0 [ 1285.444973] __mutex_lock+0x205/0x7a0 [ 1285.445170] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1285.445434] ? up_read+0x1b/0x30 [ 1285.445610] ? tc_setup_cb_destroy+0x116/0x180 [ 1285.445848] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1285.446108] refcount_dec_and_mutex_lock+0x35/0x80 [ 1285.446359] __tcf_action_put+0x1e/0x70 [ 1285.446571] tcf_action_destroy+0x31/0x80 [ 1285.446785] tcf_exts_destroy+0x20/0x40 [ 1285.446990] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 1285.447268] __fl_delete+0x12d/0x180 [cls_flower] [ 1285.447520] fl_destroy+0xbd/0x140 [cls_flower] [ 1285.447765] tcf_proto_destroy+0x1f/0xc0 [ 1285.447974] tcf_chain_flush+0xab/0x170 [ 1285.448178] __tcf_block_put+0xd2/0x190 [ 1285.448383] clsact_destroy+0xb6/0x380 [sch_ingress] [ 1285.448648] __qdisc_destroy+0x51/0x150 [ 1285.448856] dev_shutdown+0x78/0x190 [ 1285.449049] unregister_netdevice_many_notify+0x226/0x7e0 [ 1285.449333] cleanup_net+0x268/0x400 [ 1285.449526] ? process_one_work+0x16c/0x4b0 [ 1285.449751] process_one_work+0x1d6/0x4b0 [ 1285.449965] worker_thread+0x1c1/0x3d0 [ 1285.450166] ? __pfx_worker_thread+0x10/0x10 [ 1285.450394] kthread+0xda/0x110 [ 1285.450566] ? __pfx_kthread+0x10/0x10 [ 1285.450766] ret_from_fork+0x31/0x50 [ 1285.450960] ? __pfx_kthread+0x10/0x10 [ 1285.451158] ret_from_fork_asm+0x1b/0x30 [ 1285.451373] [ 1363.454696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 1363.455034] rcu: 2-....: (1352085 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=307275 [ 1363.455554] rcu: (t=1352374 jiffies g=2201 q=2378 ncpus=4) [ 1363.455848] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 1363.456291] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1363.456882] Workqueue: netns cleanup_net [ 1363.457098] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 1363.457387] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 1363.458343] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 1363.458615] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 1363.458986] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 1363.459359] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 1363.459726] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 1363.460095] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 1363.460467] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 1363.460885] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1363.461186] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 1363.461556] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1363.461925] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1363.462293] PKRU: 55555554 [ 1363.462440] Call Trace: [ 1363.462576] [ 1363.462692] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 1363.462927] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 1363.463182] ? cpuacct_charge+0x3e/0x120 [ 1363.463393] ? lock_release+0x1d3/0x270 [ 1363.463601] ? lock_acquire+0x179/0x2b0 [ 1363.463806] ? cpuacct_account_field+0x23/0xf0 [ 1363.464040] ? update_process_times+0x5f/0x90 [ 1363.464275] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 1363.464563] ? tick_sched_handle+0x33/0x50 [ 1363.464781] ? tick_nohz_highres_handler+0x71/0x90 [ 1363.465034] ? __hrtimer_run_queues+0x86/0x390 [ 1363.465276] ? hrtimer_interrupt+0x100/0x240 [ 1363.465513] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 1363.465787] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 1363.466048] [ 1363.466165] [ 1363.466283] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 1363.466578] ? queued_spin_lock_slowpath+0x36/0x310 [ 1363.466844] do_raw_spin_lock+0x9b/0xa0 [ 1363.467051] __mutex_lock+0x205/0x7a0 [ 1363.467247] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1363.467512] ? up_read+0x1b/0x30 [ 1363.467694] ? tc_setup_cb_destroy+0x116/0x180 [ 1363.467935] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1363.468203] refcount_dec_and_mutex_lock+0x35/0x80 [ 1363.468456] __tcf_action_put+0x1e/0x70 [ 1363.468663] tcf_action_destroy+0x31/0x80 [ 1363.468877] tcf_exts_destroy+0x20/0x40 [ 1363.469083] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 1363.469369] __fl_delete+0x12d/0x180 [cls_flower] [ 1363.469629] fl_destroy+0xbd/0x140 [cls_flower] [ 1363.469873] tcf_proto_destroy+0x1f/0xc0 [ 1363.470083] tcf_chain_flush+0xab/0x170 [ 1363.470287] __tcf_block_put+0xd2/0x190 [ 1363.470491] clsact_destroy+0xb6/0x380 [sch_ingress] [ 1363.470761] __qdisc_destroy+0x51/0x150 [ 1363.470976] dev_shutdown+0x78/0x190 [ 1363.471170] unregister_netdevice_many_notify+0x226/0x7e0 [ 1363.471455] cleanup_net+0x268/0x400 [ 1363.471648] ? process_one_work+0x16c/0x4b0 [ 1363.471871] process_one_work+0x1d6/0x4b0 [ 1363.472099] worker_thread+0x1c1/0x3d0 [ 1363.472300] ? __pfx_worker_thread+0x10/0x10 [ 1363.472532] kthread+0xda/0x110 [ 1363.472706] ? __pfx_kthread+0x10/0x10 [ 1363.472906] ret_from_fork+0x31/0x50 [ 1363.473101] ? __pfx_kthread+0x10/0x10 [ 1363.473306] ret_from_fork_asm+0x1b/0x30 [ 1363.473520] [ 1441.476696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 1441.477036] rcu: 2-....: (1430090 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=324971 [ 1441.477548] rcu: (t=1430396 jiffies g=2201 q=2378 ncpus=4) [ 1441.477841] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 1441.478283] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1441.478872] Workqueue: netns cleanup_net [ 1441.479090] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 1441.479381] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 1441.480333] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 1441.480605] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 1441.480975] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 1441.481344] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 1441.481712] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 1441.482080] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 1441.482450] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 1441.482865] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1441.483167] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 1441.483537] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1441.483905] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1441.484278] PKRU: 55555554 [ 1441.484426] Call Trace: [ 1441.484561] [ 1441.484675] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 1441.484912] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 1441.485153] ? cpuacct_charge+0x3e/0x120 [ 1441.485364] ? lock_release+0x1d3/0x270 [ 1441.485570] ? lock_acquire+0x179/0x2b0 [ 1441.485778] ? cpuacct_account_field+0x23/0xf0 [ 1441.486012] ? update_process_times+0x5f/0x90 [ 1441.486246] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 1441.486524] ? tick_sched_handle+0x33/0x50 [ 1441.486742] ? tick_nohz_highres_handler+0x71/0x90 [ 1441.486994] ? __hrtimer_run_queues+0x86/0x390 [ 1441.487230] ? hrtimer_interrupt+0x100/0x240 [ 1441.487459] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 1441.487734] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 1441.487996] [ 1441.488114] [ 1441.488231] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 1441.488511] ? queued_spin_lock_slowpath+0x36/0x310 [ 1441.488770] do_raw_spin_lock+0x9b/0xa0 [ 1441.488974] __mutex_lock+0x205/0x7a0 [ 1441.489171] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1441.489436] ? up_read+0x1b/0x30 [ 1441.489612] ? tc_setup_cb_destroy+0x116/0x180 [ 1441.489853] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1441.490113] refcount_dec_and_mutex_lock+0x35/0x80 [ 1441.490367] __tcf_action_put+0x1e/0x70 [ 1441.490574] tcf_action_destroy+0x31/0x80 [ 1441.490788] tcf_exts_destroy+0x20/0x40 [ 1441.490996] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 1441.491275] __fl_delete+0x12d/0x180 [cls_flower] [ 1441.491528] fl_destroy+0xbd/0x140 [cls_flower] [ 1441.491772] tcf_proto_destroy+0x1f/0xc0 [ 1441.491984] tcf_chain_flush+0xab/0x170 [ 1441.492188] __tcf_block_put+0xd2/0x190 [ 1441.492393] clsact_destroy+0xb6/0x380 [sch_ingress] [ 1441.492657] __qdisc_destroy+0x51/0x150 [ 1441.492864] dev_shutdown+0x78/0x190 [ 1441.493057] unregister_netdevice_many_notify+0x226/0x7e0 [ 1441.493344] cleanup_net+0x268/0x400 [ 1441.493538] ? process_one_work+0x16c/0x4b0 [ 1441.493761] process_one_work+0x1d6/0x4b0 [ 1441.493975] worker_thread+0x1c1/0x3d0 [ 1441.494183] ? __pfx_worker_thread+0x10/0x10 [ 1441.494408] kthread+0xda/0x110 [ 1441.494581] ? __pfx_kthread+0x10/0x10 [ 1441.494782] ret_from_fork+0x31/0x50 [ 1441.494976] ? __pfx_kthread+0x10/0x10 [ 1441.495175] ret_from_fork_asm+0x1b/0x30 [ 1441.495388] [ 1519.498695] rcu: INFO: rcu_preempt self-detected stall on CPU [ 1519.499026] rcu: 2-....: (1508095 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=342679 [ 1519.499532] rcu: (t=1508418 jiffies g=2201 q=2378 ncpus=4) [ 1519.499826] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 1519.500266] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1519.500852] Workqueue: netns cleanup_net [ 1519.501066] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 1519.501356] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 1519.502306] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 1519.502579] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 1519.502951] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 1519.503320] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 1519.503691] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 1519.504064] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 1519.504435] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 1519.504856] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1519.505158] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 1519.505529] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1519.505899] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1519.506267] PKRU: 55555554 [ 1519.506417] Call Trace: [ 1519.506552] [ 1519.506668] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 1519.506902] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 1519.507143] ? cpuacct_charge+0x3e/0x120 [ 1519.507352] ? lock_release+0x1d3/0x270 [ 1519.507560] ? lock_acquire+0x179/0x2b0 [ 1519.507767] ? cpuacct_account_field+0x23/0xf0 [ 1519.508009] ? update_process_times+0x5f/0x90 [ 1519.508245] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 1519.508523] ? tick_sched_handle+0x33/0x50 [ 1519.508744] ? tick_nohz_highres_handler+0x71/0x90 [ 1519.509002] ? __hrtimer_run_queues+0x86/0x390 [ 1519.509237] ? hrtimer_interrupt+0x100/0x240 [ 1519.509467] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 1519.509741] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 1519.510002] [ 1519.510120] [ 1519.510238] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 1519.510518] ? queued_spin_lock_slowpath+0x36/0x310 [ 1519.510776] do_raw_spin_lock+0x9b/0xa0 [ 1519.510980] __mutex_lock+0x205/0x7a0 [ 1519.511177] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1519.511442] ? up_read+0x1b/0x30 [ 1519.511621] ? tc_setup_cb_destroy+0x116/0x180 [ 1519.511861] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1519.512122] refcount_dec_and_mutex_lock+0x35/0x80 [ 1519.512374] __tcf_action_put+0x1e/0x70 [ 1519.512588] tcf_action_destroy+0x31/0x80 [ 1519.512802] tcf_exts_destroy+0x20/0x40 [ 1519.513008] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 1519.513286] __fl_delete+0x12d/0x180 [cls_flower] [ 1519.513539] fl_destroy+0xbd/0x140 [cls_flower] [ 1519.513790] tcf_proto_destroy+0x1f/0xc0 [ 1519.514001] tcf_chain_flush+0xab/0x170 [ 1519.514204] __tcf_block_put+0xd2/0x190 [ 1519.514409] clsact_destroy+0xb6/0x380 [sch_ingress] [ 1519.514672] __qdisc_destroy+0x51/0x150 [ 1519.514879] dev_shutdown+0x78/0x190 [ 1519.515071] unregister_netdevice_many_notify+0x226/0x7e0 [ 1519.515358] cleanup_net+0x268/0x400 [ 1519.515551] ? process_one_work+0x16c/0x4b0 [ 1519.515774] process_one_work+0x1d6/0x4b0 [ 1519.515989] worker_thread+0x1c1/0x3d0 [ 1519.516190] ? __pfx_worker_thread+0x10/0x10 [ 1519.516416] kthread+0xda/0x110 [ 1519.516589] ? __pfx_kthread+0x10/0x10 [ 1519.516790] ret_from_fork+0x31/0x50 [ 1519.516985] ? __pfx_kthread+0x10/0x10 [ 1519.517183] ret_from_fork_asm+0x1b/0x30 [ 1519.517395] [ 1597.519697] rcu: INFO: rcu_preempt self-detected stall on CPU [ 1597.520034] rcu: 2-....: (1586099 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=361211 [ 1597.520546] rcu: (t=1586439 jiffies g=2201 q=2378 ncpus=4) [ 1597.520840] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 1597.521283] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1597.521872] Workqueue: netns cleanup_net [ 1597.522086] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 1597.522376] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 1597.523337] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 1597.523610] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 1597.523982] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 1597.524352] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 1597.524721] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 1597.525091] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 1597.525462] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 1597.525879] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1597.526181] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 1597.526552] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1597.526922] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1597.527290] PKRU: 55555554 [ 1597.527438] Call Trace: [ 1597.527574] [ 1597.527690] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 1597.527926] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 1597.528169] ? cpuacct_charge+0x3e/0x120 [ 1597.528378] ? lock_release+0x1d3/0x270 [ 1597.528585] ? lock_acquire+0x179/0x2b0 [ 1597.528791] ? cpuacct_account_field+0x23/0xf0 [ 1597.529026] ? update_process_times+0x5f/0x90 [ 1597.529261] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 1597.529540] ? tick_sched_handle+0x33/0x50 [ 1597.529760] ? tick_nohz_highres_handler+0x71/0x90 [ 1597.530012] ? __hrtimer_run_queues+0x86/0x390 [ 1597.530248] ? hrtimer_interrupt+0x100/0x240 [ 1597.530477] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 1597.530752] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 1597.531014] [ 1597.531130] [ 1597.531248] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 1597.531528] ? queued_spin_lock_slowpath+0x36/0x310 [ 1597.531787] do_raw_spin_lock+0x9b/0xa0 [ 1597.531993] __mutex_lock+0x205/0x7a0 [ 1597.532191] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1597.532455] ? up_read+0x1b/0x30 [ 1597.532631] ? tc_setup_cb_destroy+0x116/0x180 [ 1597.532870] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1597.533132] refcount_dec_and_mutex_lock+0x35/0x80 [ 1597.533394] __tcf_action_put+0x1e/0x70 [ 1597.533601] tcf_action_destroy+0x31/0x80 [ 1597.533816] tcf_exts_destroy+0x20/0x40 [ 1597.534022] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 1597.534300] __fl_delete+0x12d/0x180 [cls_flower] [ 1597.534553] fl_destroy+0xbd/0x140 [cls_flower] [ 1597.534799] tcf_proto_destroy+0x1f/0xc0 [ 1597.535009] tcf_chain_flush+0xab/0x170 [ 1597.535213] __tcf_block_put+0xd2/0x190 [ 1597.535418] clsact_destroy+0xb6/0x380 [sch_ingress] [ 1597.535683] __qdisc_destroy+0x51/0x150 [ 1597.535891] dev_shutdown+0x78/0x190 [ 1597.536086] unregister_netdevice_many_notify+0x226/0x7e0 [ 1597.536371] cleanup_net+0x268/0x400 [ 1597.536566] ? process_one_work+0x16c/0x4b0 [ 1597.536790] process_one_work+0x1d6/0x4b0 [ 1597.537006] worker_thread+0x1c1/0x3d0 [ 1597.537207] ? __pfx_worker_thread+0x10/0x10 [ 1597.537434] kthread+0xda/0x110 [ 1597.537607] ? __pfx_kthread+0x10/0x10 [ 1597.537808] ret_from_fork+0x31/0x50 [ 1597.538003] ? __pfx_kthread+0x10/0x10 [ 1597.538204] ret_from_fork_asm+0x1b/0x30 [ 1597.538418] [ 1675.541696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 1675.542038] rcu: 2-....: (1664104 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=378602 [ 1675.542546] rcu: (t=1664461 jiffies g=2201 q=2378 ncpus=4) [ 1675.542838] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 1675.543288] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1675.543877] Workqueue: netns cleanup_net [ 1675.544091] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 1675.544383] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 1675.545336] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 1675.545611] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 1675.545980] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 1675.546352] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 1675.546723] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 1675.547093] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 1675.547462] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 1675.547888] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1675.548190] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 1675.548560] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1675.548931] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1675.549301] PKRU: 55555554 [ 1675.549448] Call Trace: [ 1675.549583] [ 1675.549699] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 1675.549938] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 1675.550180] ? cpuacct_charge+0x3e/0x120 [ 1675.550391] ? lock_release+0x1d3/0x270 [ 1675.550598] ? lock_acquire+0x179/0x2b0 [ 1675.550803] ? cpuacct_account_field+0x23/0xf0 [ 1675.551042] ? update_process_times+0x5f/0x90 [ 1675.551276] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 1675.551561] ? tick_sched_handle+0x33/0x50 [ 1675.551779] ? tick_nohz_highres_handler+0x71/0x90 [ 1675.552033] ? __hrtimer_run_queues+0x86/0x390 [ 1675.552271] ? hrtimer_interrupt+0x100/0x240 [ 1675.552499] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 1675.552776] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 1675.553046] [ 1675.553163] [ 1675.553279] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 1675.553564] ? queued_spin_lock_slowpath+0x36/0x310 [ 1675.553829] do_raw_spin_lock+0x9b/0xa0 [ 1675.554036] __mutex_lock+0x205/0x7a0 [ 1675.554233] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1675.554496] ? up_read+0x1b/0x30 [ 1675.554675] ? tc_setup_cb_destroy+0x116/0x180 [ 1675.554915] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1675.555177] refcount_dec_and_mutex_lock+0x35/0x80 [ 1675.555431] __tcf_action_put+0x1e/0x70 [ 1675.555641] tcf_action_destroy+0x31/0x80 [ 1675.555856] tcf_exts_destroy+0x20/0x40 [ 1675.556061] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 1675.556340] __fl_delete+0x12d/0x180 [cls_flower] [ 1675.556594] fl_destroy+0xbd/0x140 [cls_flower] [ 1675.556840] tcf_proto_destroy+0x1f/0xc0 [ 1675.557049] tcf_chain_flush+0xab/0x170 [ 1675.557255] __tcf_block_put+0xd2/0x190 [ 1675.557463] clsact_destroy+0xb6/0x380 [sch_ingress] [ 1675.557730] __qdisc_destroy+0x51/0x150 [ 1675.557938] dev_shutdown+0x78/0x190 [ 1675.558132] unregister_netdevice_many_notify+0x226/0x7e0 [ 1675.558416] cleanup_net+0x268/0x400 [ 1675.558610] ? process_one_work+0x16c/0x4b0 [ 1675.558836] process_one_work+0x1d6/0x4b0 [ 1675.559050] worker_thread+0x1c1/0x3d0 [ 1675.559252] ? __pfx_worker_thread+0x10/0x10 [ 1675.559482] kthread+0xda/0x110 [ 1675.559654] ? __pfx_kthread+0x10/0x10 [ 1675.559857] ret_from_fork+0x31/0x50 [ 1675.560052] ? __pfx_kthread+0x10/0x10 [ 1675.560254] ret_from_fork_asm+0x1b/0x30 [ 1675.560467] [ 1753.563695] rcu: INFO: rcu_preempt self-detected stall on CPU [ 1753.564038] rcu: 2-....: (1742109 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=396140 [ 1753.564550] rcu: (t=1742483 jiffies g=2201 q=2379 ncpus=4) [ 1753.564842] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 1753.565288] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1753.565880] Workqueue: netns cleanup_net [ 1753.566097] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 1753.566387] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 1753.567338] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 1753.567611] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 1753.567982] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 1753.568349] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 1753.568719] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 1753.569089] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 1753.569461] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 1753.569878] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1753.570181] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 1753.570552] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1753.570921] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1753.571291] PKRU: 55555554 [ 1753.571438] Call Trace: [ 1753.571575] [ 1753.571689] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 1753.571928] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 1753.572172] ? cpuacct_charge+0x3e/0x120 [ 1753.572382] ? lock_release+0x1d3/0x270 [ 1753.572592] ? lock_acquire+0x179/0x2b0 [ 1753.572797] ? cpuacct_account_field+0x23/0xf0 [ 1753.573036] ? update_process_times+0x5f/0x90 [ 1753.573270] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 1753.573549] ? tick_sched_handle+0x33/0x50 [ 1753.573768] ? tick_nohz_highres_handler+0x71/0x90 [ 1753.574021] ? __hrtimer_run_queues+0x86/0x390 [ 1753.574260] ? hrtimer_interrupt+0x100/0x240 [ 1753.574489] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 1753.574766] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 1753.575028] [ 1753.575145] [ 1753.575263] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 1753.575544] ? queued_spin_lock_slowpath+0x36/0x310 [ 1753.575803] do_raw_spin_lock+0x9b/0xa0 [ 1753.576008] __mutex_lock+0x205/0x7a0 [ 1753.576207] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1753.576470] ? up_read+0x1b/0x30 [ 1753.576647] ? tc_setup_cb_destroy+0x116/0x180 [ 1753.576888] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1753.577149] refcount_dec_and_mutex_lock+0x35/0x80 [ 1753.577402] __tcf_action_put+0x1e/0x70 [ 1753.577610] tcf_action_destroy+0x31/0x80 [ 1753.577823] tcf_exts_destroy+0x20/0x40 [ 1753.578029] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 1753.578309] __fl_delete+0x12d/0x180 [cls_flower] [ 1753.578562] fl_destroy+0xbd/0x140 [cls_flower] [ 1753.578803] tcf_proto_destroy+0x1f/0xc0 [ 1753.579015] tcf_chain_flush+0xab/0x170 [ 1753.579220] __tcf_block_put+0xd2/0x190 [ 1753.579424] clsact_destroy+0xb6/0x380 [sch_ingress] [ 1753.579689] __qdisc_destroy+0x51/0x150 [ 1753.579897] dev_shutdown+0x78/0x190 [ 1753.580090] unregister_netdevice_many_notify+0x226/0x7e0 [ 1753.580376] cleanup_net+0x268/0x400 [ 1753.580573] ? process_one_work+0x16c/0x4b0 [ 1753.580797] process_one_work+0x1d6/0x4b0 [ 1753.581011] worker_thread+0x1c1/0x3d0 [ 1753.581213] ? __pfx_worker_thread+0x10/0x10 [ 1753.581441] kthread+0xda/0x110 [ 1753.581614] ? __pfx_kthread+0x10/0x10 [ 1753.581823] ret_from_fork+0x31/0x50 [ 1753.582018] ? __pfx_kthread+0x10/0x10 [ 1753.582217] ret_from_fork_asm+0x1b/0x30 [ 1753.582431] [ 1831.585695] rcu: INFO: rcu_preempt self-detected stall on CPU [ 1831.586036] rcu: 2-....: (1820114 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=412759 [ 1831.586548] rcu: (t=1820505 jiffies g=2201 q=2380 ncpus=4) [ 1831.586839] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 1831.587282] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1831.587869] Workqueue: netns cleanup_net [ 1831.588085] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 1831.588379] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 1831.589325] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 1831.589599] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 1831.589967] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 1831.590336] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 1831.590707] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 1831.591076] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 1831.591445] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 1831.591865] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1831.592172] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 1831.592539] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1831.592909] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1831.593278] PKRU: 55555554 [ 1831.593423] Call Trace: [ 1831.593557] [ 1831.593674] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 1831.593913] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 1831.594155] ? cpuacct_charge+0x3e/0x120 [ 1831.594366] ? lock_release+0x1d3/0x270 [ 1831.594572] ? lock_acquire+0x179/0x2b0 [ 1831.594777] ? cpuacct_account_field+0x23/0xf0 [ 1831.595015] ? update_process_times+0x5f/0x90 [ 1831.595248] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 1831.595529] ? tick_sched_handle+0x33/0x50 [ 1831.595749] ? tick_nohz_highres_handler+0x71/0x90 [ 1831.596002] ? __hrtimer_run_queues+0x86/0x390 [ 1831.596241] ? hrtimer_interrupt+0x100/0x240 [ 1831.596468] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 1831.596746] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 1831.597008] [ 1831.597124] [ 1831.597240] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 1831.597522] ? queued_spin_lock_slowpath+0x36/0x310 [ 1831.597781] do_raw_spin_lock+0x9b/0xa0 [ 1831.597987] __mutex_lock+0x205/0x7a0 [ 1831.598183] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1831.598448] ? up_read+0x1b/0x30 [ 1831.598626] ? tc_setup_cb_destroy+0x116/0x180 [ 1831.598865] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1831.599127] refcount_dec_and_mutex_lock+0x35/0x80 [ 1831.599379] __tcf_action_put+0x1e/0x70 [ 1831.599587] tcf_action_destroy+0x31/0x80 [ 1831.599801] tcf_exts_destroy+0x20/0x40 [ 1831.600007] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 1831.600285] __fl_delete+0x12d/0x180 [cls_flower] [ 1831.600538] fl_destroy+0xbd/0x140 [cls_flower] [ 1831.600783] tcf_proto_destroy+0x1f/0xc0 [ 1831.600992] tcf_chain_flush+0xab/0x170 [ 1831.601197] __tcf_block_put+0xd2/0x190 [ 1831.601404] clsact_destroy+0xb6/0x380 [sch_ingress] [ 1831.601669] __qdisc_destroy+0x51/0x150 [ 1831.601876] dev_shutdown+0x78/0x190 [ 1831.602077] unregister_netdevice_many_notify+0x226/0x7e0 [ 1831.602363] cleanup_net+0x268/0x400 [ 1831.602556] ? process_one_work+0x16c/0x4b0 [ 1831.602783] process_one_work+0x1d6/0x4b0 [ 1831.602996] worker_thread+0x1c1/0x3d0 [ 1831.603197] ? __pfx_worker_thread+0x10/0x10 [ 1831.603427] kthread+0xda/0x110 [ 1831.603598] ? __pfx_kthread+0x10/0x10 [ 1831.603801] ret_from_fork+0x31/0x50 [ 1831.603996] ? __pfx_kthread+0x10/0x10 [ 1831.604196] ret_from_fork_asm+0x1b/0x30 [ 1831.604409] [ 1909.607696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 1909.608040] rcu: 2-....: (1898119 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=430463 [ 1909.608548] rcu: (t=1898527 jiffies g=2201 q=2381 ncpus=4) [ 1909.608845] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 1909.609290] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1909.609888] Workqueue: netns cleanup_net [ 1909.610107] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 1909.610397] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 1909.611353] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 1909.611635] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 1909.612020] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 1909.612390] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 1909.612771] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 1909.613142] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 1909.613513] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 1909.613930] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1909.614236] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 1909.614607] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1909.614976] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1909.615351] PKRU: 55555554 [ 1909.615498] Call Trace: [ 1909.615635] [ 1909.615748] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 1909.615994] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 1909.616239] ? cpuacct_charge+0x3e/0x120 [ 1909.616453] ? lock_release+0x1d3/0x270 [ 1909.616663] ? lock_acquire+0x179/0x2b0 [ 1909.616868] ? cpuacct_account_field+0x23/0xf0 [ 1909.617106] ? update_process_times+0x5f/0x90 [ 1909.617347] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 1909.617628] ? tick_sched_handle+0x33/0x50 [ 1909.617845] ? tick_nohz_highres_handler+0x71/0x90 [ 1909.618108] ? __hrtimer_run_queues+0x86/0x390 [ 1909.618345] ? hrtimer_interrupt+0x100/0x240 [ 1909.618573] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 1909.618849] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 1909.619115] [ 1909.619232] [ 1909.619350] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 1909.619632] ? queued_spin_lock_slowpath+0x36/0x310 [ 1909.619892] do_raw_spin_lock+0x9b/0xa0 [ 1909.620098] __mutex_lock+0x205/0x7a0 [ 1909.620295] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1909.620560] ? up_read+0x1b/0x30 [ 1909.620738] ? tc_setup_cb_destroy+0x116/0x180 [ 1909.620980] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1909.621242] refcount_dec_and_mutex_lock+0x35/0x80 [ 1909.621501] __tcf_action_put+0x1e/0x70 [ 1909.621727] tcf_action_destroy+0x31/0x80 [ 1909.621939] tcf_exts_destroy+0x20/0x40 [ 1909.622145] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 1909.622430] __fl_delete+0x12d/0x180 [cls_flower] [ 1909.622681] fl_destroy+0xbd/0x140 [cls_flower] [ 1909.622922] tcf_proto_destroy+0x1f/0xc0 [ 1909.623134] tcf_chain_flush+0xab/0x170 [ 1909.623339] __tcf_block_put+0xd2/0x190 [ 1909.623543] clsact_destroy+0xb6/0x380 [sch_ingress] [ 1909.623808] __qdisc_destroy+0x51/0x150 [ 1909.624014] dev_shutdown+0x78/0x190 [ 1909.624207] unregister_netdevice_many_notify+0x226/0x7e0 [ 1909.624492] cleanup_net+0x268/0x400 [ 1909.624686] ? process_one_work+0x16c/0x4b0 [ 1909.624916] process_one_work+0x1d6/0x4b0 [ 1909.625129] worker_thread+0x1c1/0x3d0 [ 1909.625346] ? __pfx_worker_thread+0x10/0x10 [ 1909.625576] kthread+0xda/0x110 [ 1909.625749] ? __pfx_kthread+0x10/0x10 [ 1909.625954] ret_from_fork+0x31/0x50 [ 1909.626150] ? __pfx_kthread+0x10/0x10 [ 1909.626357] ret_from_fork_asm+0x1b/0x30 [ 1909.626569] [ 1987.629696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 1987.630038] rcu: 2-....: (1976123 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=447333 [ 1987.630546] rcu: (t=1976549 jiffies g=2201 q=2381 ncpus=4) [ 1987.630839] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 1987.631286] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1987.631870] Workqueue: netns cleanup_net [ 1987.632086] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 1987.632378] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 1987.633320] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 1987.633591] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 1987.633958] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 1987.634325] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 1987.634694] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 1987.635060] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 1987.635431] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 1987.635847] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1987.636144] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 1987.636511] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1987.636879] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1987.637246] PKRU: 55555554 [ 1987.637390] Call Trace: [ 1987.637525] [ 1987.637639] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 1987.637878] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 1987.638117] ? cpuacct_charge+0x3e/0x120 [ 1987.638330] ? lock_release+0x1d3/0x270 [ 1987.638537] ? lock_acquire+0x179/0x2b0 [ 1987.638741] ? cpuacct_account_field+0x23/0xf0 [ 1987.638979] ? update_process_times+0x5f/0x90 [ 1987.639211] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 1987.639492] ? tick_sched_handle+0x33/0x50 [ 1987.639709] ? tick_nohz_highres_handler+0x71/0x90 [ 1987.639962] ? __hrtimer_run_queues+0x86/0x390 [ 1987.640200] ? hrtimer_interrupt+0x100/0x240 [ 1987.640426] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 1987.640701] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 1987.640966] [ 1987.641081] [ 1987.641198] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 1987.641483] ? queued_spin_lock_slowpath+0x36/0x310 [ 1987.641741] do_raw_spin_lock+0x9b/0xa0 [ 1987.641946] __mutex_lock+0x205/0x7a0 [ 1987.642143] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1987.642408] ? up_read+0x1b/0x30 [ 1987.642585] ? tc_setup_cb_destroy+0x116/0x180 [ 1987.642823] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 1987.643083] refcount_dec_and_mutex_lock+0x35/0x80 [ 1987.643334] __tcf_action_put+0x1e/0x70 [ 1987.643542] tcf_action_destroy+0x31/0x80 [ 1987.643757] tcf_exts_destroy+0x20/0x40 [ 1987.643961] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 1987.644239] __fl_delete+0x12d/0x180 [cls_flower] [ 1987.644491] fl_destroy+0xbd/0x140 [cls_flower] [ 1987.644736] tcf_proto_destroy+0x1f/0xc0 [ 1987.644945] tcf_chain_flush+0xab/0x170 [ 1987.645148] __tcf_block_put+0xd2/0x190 [ 1987.645361] clsact_destroy+0xb6/0x380 [sch_ingress] [ 1987.645628] __qdisc_destroy+0x51/0x150 [ 1987.645835] dev_shutdown+0x78/0x190 [ 1987.646028] unregister_netdevice_many_notify+0x226/0x7e0 [ 1987.646311] cleanup_net+0x268/0x400 [ 1987.646503] ? process_one_work+0x16c/0x4b0 [ 1987.646728] process_one_work+0x1d6/0x4b0 [ 1987.646942] worker_thread+0x1c1/0x3d0 [ 1987.647142] ? __pfx_worker_thread+0x10/0x10 [ 1987.647372] kthread+0xda/0x110 [ 1987.647543] ? __pfx_kthread+0x10/0x10 [ 1987.647744] ret_from_fork+0x31/0x50 [ 1987.647937] ? __pfx_kthread+0x10/0x10 [ 1987.648135] ret_from_fork_asm+0x1b/0x30 [ 1987.648348] [ 2065.651696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 2065.652038] rcu: 2-....: (2054128 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=463498 [ 2065.652549] rcu: (t=2054571 jiffies g=2201 q=2381 ncpus=4) [ 2065.652847] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 2065.653290] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 2065.653878] Workqueue: netns cleanup_net [ 2065.654101] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 2065.654392] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 2065.655336] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 2065.655606] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 2065.655975] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 2065.656341] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 2065.656707] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 2065.657074] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 2065.657440] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 2065.657853] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2065.658152] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 2065.658520] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2065.658887] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2065.659253] PKRU: 55555554 [ 2065.659399] Call Trace: [ 2065.659533] [ 2065.659648] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 2065.659885] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 2065.660126] ? cpuacct_charge+0x3e/0x120 [ 2065.660336] ? lock_release+0x1d3/0x270 [ 2065.660544] ? lock_acquire+0x179/0x2b0 [ 2065.660749] ? cpuacct_account_field+0x23/0xf0 [ 2065.660991] ? update_process_times+0x5f/0x90 [ 2065.661223] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 2065.661500] ? tick_sched_handle+0x33/0x50 [ 2065.661719] ? tick_nohz_highres_handler+0x71/0x90 [ 2065.661972] ? __hrtimer_run_queues+0x86/0x390 [ 2065.662206] ? hrtimer_interrupt+0x100/0x240 [ 2065.662436] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 2065.662711] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 2065.662972] [ 2065.663092] [ 2065.663209] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 2065.663489] ? queued_spin_lock_slowpath+0x36/0x310 [ 2065.663747] do_raw_spin_lock+0x9b/0xa0 [ 2065.663953] __mutex_lock+0x205/0x7a0 [ 2065.664150] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2065.664414] ? up_read+0x1b/0x30 [ 2065.664588] ? tc_setup_cb_destroy+0x116/0x180 [ 2065.664828] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2065.665088] refcount_dec_and_mutex_lock+0x35/0x80 [ 2065.665339] __tcf_action_put+0x1e/0x70 [ 2065.665547] tcf_action_destroy+0x31/0x80 [ 2065.665761] tcf_exts_destroy+0x20/0x40 [ 2065.665966] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 2065.666244] __fl_delete+0x12d/0x180 [cls_flower] [ 2065.666495] fl_destroy+0xbd/0x140 [cls_flower] [ 2065.666740] tcf_proto_destroy+0x1f/0xc0 [ 2065.666949] tcf_chain_flush+0xab/0x170 [ 2065.667152] __tcf_block_put+0xd2/0x190 [ 2065.667356] clsact_destroy+0xb6/0x380 [sch_ingress] [ 2065.667619] __qdisc_destroy+0x51/0x150 [ 2065.667828] dev_shutdown+0x78/0x190 [ 2065.668020] unregister_netdevice_many_notify+0x226/0x7e0 [ 2065.668305] cleanup_net+0x268/0x400 [ 2065.668498] ? process_one_work+0x16c/0x4b0 [ 2065.668720] process_one_work+0x1d6/0x4b0 [ 2065.668936] worker_thread+0x1c1/0x3d0 [ 2065.669137] ? __pfx_worker_thread+0x10/0x10 [ 2065.669362] kthread+0xda/0x110 [ 2065.669534] ? __pfx_kthread+0x10/0x10 [ 2065.669735] ret_from_fork+0x31/0x50 [ 2065.669929] ? __pfx_kthread+0x10/0x10 [ 2065.670126] ret_from_fork_asm+0x1b/0x30 [ 2065.670338] [ 2143.673696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 2143.674037] rcu: 2-....: (2132133 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=480374 [ 2143.674545] rcu: (t=2132593 jiffies g=2201 q=2382 ncpus=4) [ 2143.674840] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 2143.675306] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 2143.675935] Workqueue: netns cleanup_net [ 2143.676152] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 2143.676444] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 2143.677388] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 2143.677660] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 2143.678028] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 2143.678402] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 2143.678772] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 2143.679140] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 2143.679510] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 2143.679929] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2143.680227] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 2143.680601] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2143.680970] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2143.681338] PKRU: 55555554 [ 2143.681482] Call Trace: [ 2143.681617] [ 2143.681733] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 2143.681971] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 2143.682210] ? cpuacct_charge+0x3e/0x120 [ 2143.682421] ? lock_release+0x1d3/0x270 [ 2143.682628] ? lock_acquire+0x179/0x2b0 [ 2143.682832] ? cpuacct_account_field+0x23/0xf0 [ 2143.683069] ? update_process_times+0x5f/0x90 [ 2143.683300] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 2143.683580] ? tick_sched_handle+0x33/0x50 [ 2143.683796] ? tick_nohz_highres_handler+0x71/0x90 [ 2143.684049] ? __hrtimer_run_queues+0x86/0x390 [ 2143.684286] ? hrtimer_interrupt+0x100/0x240 [ 2143.684511] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 2143.684786] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 2143.685046] [ 2143.685162] [ 2143.685279] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 2143.685561] ? queued_spin_lock_slowpath+0x36/0x310 [ 2143.685818] do_raw_spin_lock+0x9b/0xa0 [ 2143.686022] __mutex_lock+0x205/0x7a0 [ 2143.686218] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2143.686482] ? up_read+0x1b/0x30 [ 2143.686658] ? tc_setup_cb_destroy+0x116/0x180 [ 2143.686896] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2143.687155] refcount_dec_and_mutex_lock+0x35/0x80 [ 2143.687407] __tcf_action_put+0x1e/0x70 [ 2143.687614] tcf_action_destroy+0x31/0x80 [ 2143.687829] tcf_exts_destroy+0x20/0x40 [ 2143.688033] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 2143.688309] __fl_delete+0x12d/0x180 [cls_flower] [ 2143.688561] fl_destroy+0xbd/0x140 [cls_flower] [ 2143.688805] tcf_proto_destroy+0x1f/0xc0 [ 2143.689014] tcf_chain_flush+0xab/0x170 [ 2143.689217] __tcf_block_put+0xd2/0x190 [ 2143.689422] clsact_destroy+0xb6/0x380 [sch_ingress] [ 2143.689686] __qdisc_destroy+0x51/0x150 [ 2143.689893] dev_shutdown+0x78/0x190 [ 2143.690086] unregister_netdevice_many_notify+0x226/0x7e0 [ 2143.690368] cleanup_net+0x268/0x400 [ 2143.690564] ? process_one_work+0x16c/0x4b0 [ 2143.690789] process_one_work+0x1d6/0x4b0 [ 2143.691002] worker_thread+0x1c1/0x3d0 [ 2143.691202] ? __pfx_worker_thread+0x10/0x10 [ 2143.691430] kthread+0xda/0x110 [ 2143.691600] ? __pfx_kthread+0x10/0x10 [ 2143.691799] ret_from_fork+0x31/0x50 [ 2143.691992] ? __pfx_kthread+0x10/0x10 [ 2143.692192] ret_from_fork_asm+0x1b/0x30 [ 2143.692405] [ 2221.695707] rcu: INFO: rcu_preempt self-detected stall on CPU [ 2221.696052] rcu: 2-....: (2210138 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=497776 [ 2221.696563] rcu: (t=2210615 jiffies g=2201 q=2382 ncpus=4) [ 2221.696858] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 2221.697302] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 2221.697889] Workqueue: netns cleanup_net [ 2221.698110] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 2221.698401] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 2221.699350] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 2221.699623] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 2221.699993] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 2221.700368] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 2221.700743] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 2221.701113] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 2221.701484] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 2221.701899] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2221.702199] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 2221.702570] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2221.702940] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2221.703306] PKRU: 55555554 [ 2221.703455] Call Trace: [ 2221.703593] [ 2221.703714] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 2221.703952] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 2221.704191] ? cpuacct_charge+0x3e/0x120 [ 2221.704403] ? lock_release+0x1d3/0x270 [ 2221.704609] ? lock_acquire+0x179/0x2b0 [ 2221.704814] ? cpuacct_account_field+0x23/0xf0 [ 2221.705051] ? update_process_times+0x5f/0x90 [ 2221.705286] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 2221.705567] ? tick_sched_handle+0x33/0x50 [ 2221.705784] ? tick_nohz_highres_handler+0x71/0x90 [ 2221.706037] ? __hrtimer_run_queues+0x86/0x390 [ 2221.706273] ? hrtimer_interrupt+0x100/0x240 [ 2221.706499] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 2221.706773] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 2221.707036] [ 2221.707151] [ 2221.707269] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 2221.707550] ? queued_spin_lock_slowpath+0x36/0x310 [ 2221.707808] do_raw_spin_lock+0x9b/0xa0 [ 2221.708014] __mutex_lock+0x205/0x7a0 [ 2221.708215] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2221.708478] ? up_read+0x1b/0x30 [ 2221.708654] ? tc_setup_cb_destroy+0x116/0x180 [ 2221.708891] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2221.709152] refcount_dec_and_mutex_lock+0x35/0x80 [ 2221.709403] __tcf_action_put+0x1e/0x70 [ 2221.709611] tcf_action_destroy+0x31/0x80 [ 2221.709826] tcf_exts_destroy+0x20/0x40 [ 2221.710036] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 2221.710313] __fl_delete+0x12d/0x180 [cls_flower] [ 2221.710566] fl_destroy+0xbd/0x140 [cls_flower] [ 2221.710810] tcf_proto_destroy+0x1f/0xc0 [ 2221.711019] tcf_chain_flush+0xab/0x170 [ 2221.711222] __tcf_block_put+0xd2/0x190 [ 2221.711429] clsact_destroy+0xb6/0x380 [sch_ingress] [ 2221.711693] __qdisc_destroy+0x51/0x150 [ 2221.711903] dev_shutdown+0x78/0x190 [ 2221.712096] unregister_netdevice_many_notify+0x226/0x7e0 [ 2221.712380] cleanup_net+0x268/0x400 [ 2221.712572] ? process_one_work+0x16c/0x4b0 [ 2221.712797] process_one_work+0x1d6/0x4b0 [ 2221.713012] worker_thread+0x1c1/0x3d0 [ 2221.713212] ? __pfx_worker_thread+0x10/0x10 [ 2221.713440] kthread+0xda/0x110 [ 2221.713611] ? __pfx_kthread+0x10/0x10 [ 2221.713811] ret_from_fork+0x31/0x50 [ 2221.714005] ? __pfx_kthread+0x10/0x10 [ 2221.714208] ret_from_fork_asm+0x1b/0x30 [ 2221.714423] [ 2299.716697] rcu: INFO: rcu_preempt self-detected stall on CPU [ 2299.717045] rcu: 2-....: (2288142 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=515421 [ 2299.717554] rcu: (t=2288636 jiffies g=2201 q=2383 ncpus=4) [ 2299.717851] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 2299.718309] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 2299.718902] Workqueue: netns cleanup_net [ 2299.719121] RIP: 0010:queued_spin_lock_slowpath+0x19/0x310 [ 2299.719415] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 41 55 41 54 55 48 89 fd 53 66 90 ba 01 00 00 00 <8b> 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d [ 2299.720372] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 2299.720647] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 2299.721015] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 2299.721385] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 2299.721757] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 2299.722127] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 2299.722496] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 2299.722917] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2299.723218] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 2299.723586] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2299.723959] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2299.724330] PKRU: 55555554 [ 2299.724476] Call Trace: [ 2299.724611] [ 2299.724728] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 2299.724968] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 2299.725210] ? cpuacct_charge+0x3e/0x120 [ 2299.725422] ? lock_release+0x1d3/0x270 [ 2299.725628] ? lock_acquire+0x179/0x2b0 [ 2299.725834] ? cpuacct_account_field+0x23/0xf0 [ 2299.726071] ? update_process_times+0x5f/0x90 [ 2299.726304] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 2299.726586] ? tick_sched_handle+0x33/0x50 [ 2299.726803] ? tick_nohz_highres_handler+0x71/0x90 [ 2299.727057] ? __hrtimer_run_queues+0x86/0x390 [ 2299.727296] ? hrtimer_interrupt+0x100/0x240 [ 2299.727523] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 2299.727803] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 2299.728065] [ 2299.728181] [ 2299.728298] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 2299.728582] ? queued_spin_lock_slowpath+0x19/0x310 [ 2299.728842] do_raw_spin_lock+0x9b/0xa0 [ 2299.729048] __mutex_lock+0x205/0x7a0 [ 2299.729245] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2299.729510] ? up_read+0x1b/0x30 [ 2299.729694] ? tc_setup_cb_destroy+0x116/0x180 [ 2299.729932] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2299.730194] refcount_dec_and_mutex_lock+0x35/0x80 [ 2299.730446] __tcf_action_put+0x1e/0x70 [ 2299.730655] tcf_action_destroy+0x31/0x80 [ 2299.730869] tcf_exts_destroy+0x20/0x40 [ 2299.731075] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 2299.731352] __fl_delete+0x12d/0x180 [cls_flower] [ 2299.731606] fl_destroy+0xbd/0x140 [cls_flower] [ 2299.731853] tcf_proto_destroy+0x1f/0xc0 [ 2299.732061] tcf_chain_flush+0xab/0x170 [ 2299.732266] __tcf_block_put+0xd2/0x190 [ 2299.732472] clsact_destroy+0xb6/0x380 [sch_ingress] [ 2299.732737] __qdisc_destroy+0x51/0x150 [ 2299.732945] dev_shutdown+0x78/0x190 [ 2299.733139] unregister_netdevice_many_notify+0x226/0x7e0 [ 2299.733422] cleanup_net+0x268/0x400 [ 2299.733614] ? process_one_work+0x16c/0x4b0 [ 2299.733840] process_one_work+0x1d6/0x4b0 [ 2299.734053] worker_thread+0x1c1/0x3d0 [ 2299.734254] ? __pfx_worker_thread+0x10/0x10 [ 2299.734483] kthread+0xda/0x110 [ 2299.734654] ? __pfx_kthread+0x10/0x10 [ 2299.734856] ret_from_fork+0x31/0x50 [ 2299.735051] ? __pfx_kthread+0x10/0x10 [ 2299.735251] ret_from_fork_asm+0x1b/0x30 [ 2299.735464] [ 2377.738696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 2377.739030] rcu: 2-....: (2366147 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=532966 [ 2377.739542] rcu: (t=2366658 jiffies g=2201 q=2383 ncpus=4) [ 2377.739834] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 2377.740277] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 2377.740865] Workqueue: netns cleanup_net [ 2377.741079] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 2377.741369] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 2377.742312] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 2377.742585] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 2377.742953] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 2377.743321] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 2377.743689] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 2377.744061] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 2377.744429] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 2377.744847] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2377.745147] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 2377.745515] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2377.745883] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2377.746253] PKRU: 55555554 [ 2377.746398] Call Trace: [ 2377.746532] [ 2377.746647] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 2377.746885] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 2377.747125] ? cpuacct_charge+0x3e/0x120 [ 2377.747340] ? lock_release+0x1d3/0x270 [ 2377.747544] ? lock_acquire+0x179/0x2b0 [ 2377.747749] ? cpuacct_account_field+0x23/0xf0 [ 2377.747984] ? update_process_times+0x5f/0x90 [ 2377.748216] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 2377.748495] ? tick_sched_handle+0x33/0x50 [ 2377.748710] ? tick_nohz_highres_handler+0x71/0x90 [ 2377.748962] ? __hrtimer_run_queues+0x86/0x390 [ 2377.749199] ? hrtimer_interrupt+0x100/0x240 [ 2377.749431] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 2377.749707] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 2377.749967] [ 2377.750083] [ 2377.750198] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 2377.750480] ? queued_spin_lock_slowpath+0x36/0x310 [ 2377.750739] do_raw_spin_lock+0x9b/0xa0 [ 2377.750942] __mutex_lock+0x205/0x7a0 [ 2377.751138] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2377.751401] ? up_read+0x1b/0x30 [ 2377.751577] ? tc_setup_cb_destroy+0x116/0x180 [ 2377.751816] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2377.752075] refcount_dec_and_mutex_lock+0x35/0x80 [ 2377.752327] __tcf_action_put+0x1e/0x70 [ 2377.752534] tcf_action_destroy+0x31/0x80 [ 2377.752746] tcf_exts_destroy+0x20/0x40 [ 2377.752949] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 2377.753225] __fl_delete+0x12d/0x180 [cls_flower] [ 2377.753477] fl_destroy+0xbd/0x140 [cls_flower] [ 2377.753722] tcf_proto_destroy+0x1f/0xc0 [ 2377.753930] tcf_chain_flush+0xab/0x170 [ 2377.754133] __tcf_block_put+0xd2/0x190 [ 2377.754338] clsact_destroy+0xb6/0x380 [sch_ingress] [ 2377.754601] __qdisc_destroy+0x51/0x150 [ 2377.754807] dev_shutdown+0x78/0x190 [ 2377.755000] unregister_netdevice_many_notify+0x226/0x7e0 [ 2377.755282] cleanup_net+0x268/0x400 [ 2377.755474] ? process_one_work+0x16c/0x4b0 [ 2377.755698] process_one_work+0x1d6/0x4b0 [ 2377.755911] worker_thread+0x1c1/0x3d0 [ 2377.756111] ? __pfx_worker_thread+0x10/0x10 [ 2377.756341] kthread+0xda/0x110 [ 2377.756510] ? __pfx_kthread+0x10/0x10 [ 2377.756711] ret_from_fork+0x31/0x50 [ 2377.756905] ? __pfx_kthread+0x10/0x10 [ 2377.757104] ret_from_fork_asm+0x1b/0x30 [ 2377.757316] [ 2455.760696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 2455.761033] rcu: 2-....: (2444152 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=550956 [ 2455.761542] rcu: (t=2444680 jiffies g=2201 q=2384 ncpus=4) [ 2455.761843] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 2455.762287] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 2455.762874] Workqueue: netns cleanup_net [ 2455.763092] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 2455.763384] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 2455.764329] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 2455.764601] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 2455.764968] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 2455.765335] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 2455.765704] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 2455.766074] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 2455.766440] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 2455.766857] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2455.767156] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 2455.767523] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2455.767893] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2455.768261] PKRU: 55555554 [ 2455.768405] Call Trace: [ 2455.768542] [ 2455.768664] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 2455.768908] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 2455.769150] ? cpuacct_charge+0x3e/0x120 [ 2455.769359] ? lock_release+0x1d3/0x270 [ 2455.769563] ? lock_acquire+0x179/0x2b0 [ 2455.769768] ? cpuacct_account_field+0x23/0xf0 [ 2455.770003] ? update_process_times+0x5f/0x90 [ 2455.770235] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 2455.770514] ? tick_sched_handle+0x33/0x50 [ 2455.770730] ? tick_nohz_highres_handler+0x71/0x90 [ 2455.770981] ? __hrtimer_run_queues+0x86/0x390 [ 2455.771217] ? hrtimer_interrupt+0x100/0x240 [ 2455.771449] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 2455.771723] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 2455.771991] [ 2455.772108] [ 2455.772225] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 2455.772502] ? queued_spin_lock_slowpath+0x36/0x310 [ 2455.772759] do_raw_spin_lock+0x9b/0xa0 [ 2455.772962] __mutex_lock+0x205/0x7a0 [ 2455.773157] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2455.773419] ? up_read+0x1b/0x30 [ 2455.773601] ? tc_setup_cb_destroy+0x116/0x180 [ 2455.773845] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2455.774104] refcount_dec_and_mutex_lock+0x35/0x80 [ 2455.774356] __tcf_action_put+0x1e/0x70 [ 2455.774565] tcf_action_destroy+0x31/0x80 [ 2455.774778] tcf_exts_destroy+0x20/0x40 [ 2455.774983] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 2455.775260] __fl_delete+0x12d/0x180 [cls_flower] [ 2455.775511] fl_destroy+0xbd/0x140 [cls_flower] [ 2455.775753] tcf_proto_destroy+0x1f/0xc0 [ 2455.775963] tcf_chain_flush+0xab/0x170 [ 2455.776165] __tcf_block_put+0xd2/0x190 [ 2455.776368] clsact_destroy+0xb6/0x380 [sch_ingress] [ 2455.776631] __qdisc_destroy+0x51/0x150 [ 2455.776837] dev_shutdown+0x78/0x190 [ 2455.777029] unregister_netdevice_many_notify+0x226/0x7e0 [ 2455.777313] cleanup_net+0x268/0x400 [ 2455.777504] ? process_one_work+0x16c/0x4b0 [ 2455.777725] process_one_work+0x1d6/0x4b0 [ 2455.777938] worker_thread+0x1c1/0x3d0 [ 2455.778142] ? __pfx_worker_thread+0x10/0x10 [ 2455.778366] kthread+0xda/0x110 [ 2455.778537] ? __pfx_kthread+0x10/0x10 [ 2455.778737] ret_from_fork+0x31/0x50 [ 2455.778940] ? __pfx_kthread+0x10/0x10 [ 2455.779139] ret_from_fork_asm+0x1b/0x30 [ 2455.779348] [ 2533.782696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 2533.783046] rcu: 2-....: (2522157 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=568204 [ 2533.783555] rcu: (t=2522702 jiffies g=2201 q=2384 ncpus=4) [ 2533.783848] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 2533.784291] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 2533.784878] Workqueue: netns cleanup_net [ 2533.785093] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 2533.785385] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 2533.786337] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 2533.786610] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 2533.786980] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 2533.787348] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 2533.787718] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 2533.788086] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 2533.788460] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 2533.788876] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2533.789174] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 2533.789545] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2533.789915] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2533.790284] PKRU: 55555554 [ 2533.790430] Call Trace: [ 2533.790565] [ 2533.790681] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 2533.790920] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 2533.791159] ? cpuacct_charge+0x3e/0x120 [ 2533.791375] ? lock_release+0x1d3/0x270 [ 2533.791581] ? lock_acquire+0x179/0x2b0 [ 2533.791786] ? cpuacct_account_field+0x23/0xf0 [ 2533.792021] ? update_process_times+0x5f/0x90 [ 2533.792252] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 2533.792533] ? tick_sched_handle+0x33/0x50 [ 2533.792751] ? tick_nohz_highres_handler+0x71/0x90 [ 2533.793004] ? __hrtimer_run_queues+0x86/0x390 [ 2533.793241] ? hrtimer_interrupt+0x100/0x240 [ 2533.793469] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 2533.793744] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 2533.794017] [ 2533.794142] [ 2533.794260] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 2533.794540] ? queued_spin_lock_slowpath+0x36/0x310 [ 2533.794797] do_raw_spin_lock+0x9b/0xa0 [ 2533.795004] __mutex_lock+0x205/0x7a0 [ 2533.795200] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2533.795464] ? up_read+0x1b/0x30 [ 2533.795640] ? tc_setup_cb_destroy+0x116/0x180 [ 2533.795879] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2533.796139] refcount_dec_and_mutex_lock+0x35/0x80 [ 2533.796391] __tcf_action_put+0x1e/0x70 [ 2533.796598] tcf_action_destroy+0x31/0x80 [ 2533.796813] tcf_exts_destroy+0x20/0x40 [ 2533.797018] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 2533.797297] __fl_delete+0x12d/0x180 [cls_flower] [ 2533.797548] fl_destroy+0xbd/0x140 [cls_flower] [ 2533.797794] tcf_proto_destroy+0x1f/0xc0 [ 2533.798003] tcf_chain_flush+0xab/0x170 [ 2533.798207] __tcf_block_put+0xd2/0x190 [ 2533.798411] clsact_destroy+0xb6/0x380 [sch_ingress] [ 2533.798683] __qdisc_destroy+0x51/0x150 [ 2533.798891] dev_shutdown+0x78/0x190 [ 2533.799082] unregister_netdevice_many_notify+0x226/0x7e0 [ 2533.799365] cleanup_net+0x268/0x400 [ 2533.799558] ? process_one_work+0x16c/0x4b0 [ 2533.799782] process_one_work+0x1d6/0x4b0 [ 2533.799997] worker_thread+0x1c1/0x3d0 [ 2533.800197] ? __pfx_worker_thread+0x10/0x10 [ 2533.800423] kthread+0xda/0x110 [ 2533.800594] ? __pfx_kthread+0x10/0x10 [ 2533.800794] ret_from_fork+0x31/0x50 [ 2533.800987] ? __pfx_kthread+0x10/0x10 [ 2533.801186] ret_from_fork_asm+0x1b/0x30 [ 2533.801401] [ 2611.804696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 2611.805047] rcu: 2-....: (2600162 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=585161 [ 2611.805558] rcu: (t=2600724 jiffies g=2201 q=2385 ncpus=4) [ 2611.805852] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 2611.806296] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 2611.806883] Workqueue: netns cleanup_net [ 2611.807097] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 2611.807389] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 2611.808340] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 2611.808614] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 2611.808982] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 2611.809352] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 2611.809722] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 2611.810090] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 2611.810459] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 2611.810879] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2611.811179] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 2611.811547] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2611.811917] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2611.812287] PKRU: 55555554 [ 2611.812433] Call Trace: [ 2611.812567] [ 2611.812683] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 2611.812922] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 2611.813161] ? cpuacct_charge+0x3e/0x120 [ 2611.813373] ? lock_release+0x1d3/0x270 [ 2611.813578] ? lock_acquire+0x179/0x2b0 [ 2611.813783] ? cpuacct_account_field+0x23/0xf0 [ 2611.814020] ? update_process_times+0x5f/0x90 [ 2611.814251] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 2611.814534] ? tick_sched_handle+0x33/0x50 [ 2611.814751] ? tick_nohz_highres_handler+0x71/0x90 [ 2611.815003] ? __hrtimer_run_queues+0x86/0x390 [ 2611.815241] ? hrtimer_interrupt+0x100/0x240 [ 2611.815467] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 2611.815744] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 2611.816007] [ 2611.816122] [ 2611.816240] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 2611.816525] ? queued_spin_lock_slowpath+0x36/0x310 [ 2611.816783] do_raw_spin_lock+0x9b/0xa0 [ 2611.816989] __mutex_lock+0x205/0x7a0 [ 2611.817185] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2611.817449] ? up_read+0x1b/0x30 [ 2611.817626] ? tc_setup_cb_destroy+0x116/0x180 [ 2611.817863] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2611.818129] refcount_dec_and_mutex_lock+0x35/0x80 [ 2611.818380] __tcf_action_put+0x1e/0x70 [ 2611.818591] tcf_action_destroy+0x31/0x80 [ 2611.818805] tcf_exts_destroy+0x20/0x40 [ 2611.819009] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 2611.819286] __fl_delete+0x12d/0x180 [cls_flower] [ 2611.819539] fl_destroy+0xbd/0x140 [cls_flower] [ 2611.819783] tcf_proto_destroy+0x1f/0xc0 [ 2611.819993] tcf_chain_flush+0xab/0x170 [ 2611.820196] __tcf_block_put+0xd2/0x190 [ 2611.820403] clsact_destroy+0xb6/0x380 [sch_ingress] [ 2611.820667] __qdisc_destroy+0x51/0x150 [ 2611.820875] dev_shutdown+0x78/0x190 [ 2611.821069] unregister_netdevice_many_notify+0x226/0x7e0 [ 2611.821352] cleanup_net+0x268/0x400 [ 2611.821544] ? process_one_work+0x16c/0x4b0 [ 2611.821770] process_one_work+0x1d6/0x4b0 [ 2611.821984] worker_thread+0x1c1/0x3d0 [ 2611.822188] ? __pfx_worker_thread+0x10/0x10 [ 2611.822416] kthread+0xda/0x110 [ 2611.822586] ? __pfx_kthread+0x10/0x10 [ 2611.822787] ret_from_fork+0x31/0x50 [ 2611.822981] ? __pfx_kthread+0x10/0x10 [ 2611.823181] ret_from_fork_asm+0x1b/0x30 [ 2611.823394] [ 2689.826696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 2689.827037] rcu: 2-....: (2678167 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=603187 [ 2689.827559] rcu: (t=2678746 jiffies g=2201 q=2385 ncpus=4) [ 2689.827863] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 2689.828305] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 2689.828912] Workqueue: netns cleanup_net [ 2689.829129] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 2689.829418] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 2689.830358] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 2689.830628] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 2689.831004] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 2689.831371] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 2689.831739] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 2689.832108] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 2689.832478] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 2689.832895] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2689.833196] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 2689.833565] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2689.833933] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2689.834305] PKRU: 55555554 [ 2689.834451] Call Trace: [ 2689.834586] [ 2689.834700] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 2689.834936] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 2689.835177] ? cpuacct_charge+0x3e/0x120 [ 2689.835387] ? lock_release+0x1d3/0x270 [ 2689.835591] ? lock_acquire+0x179/0x2b0 [ 2689.835799] ? cpuacct_account_field+0x23/0xf0 [ 2689.836034] ? update_process_times+0x5f/0x90 [ 2689.836266] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 2689.836543] ? tick_sched_handle+0x33/0x50 [ 2689.836760] ? tick_nohz_highres_handler+0x71/0x90 [ 2689.837010] ? __hrtimer_run_queues+0x86/0x390 [ 2689.837247] ? hrtimer_interrupt+0x100/0x240 [ 2689.837475] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 2689.837757] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 2689.838019] [ 2689.838136] [ 2689.838253] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 2689.838533] ? queued_spin_lock_slowpath+0x36/0x310 [ 2689.838790] do_raw_spin_lock+0x9b/0xa0 [ 2689.838995] __mutex_lock+0x205/0x7a0 [ 2689.839190] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2689.839455] ? up_read+0x1b/0x30 [ 2689.839632] ? tc_setup_cb_destroy+0x116/0x180 [ 2689.839874] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2689.840137] refcount_dec_and_mutex_lock+0x35/0x80 [ 2689.840391] __tcf_action_put+0x1e/0x70 [ 2689.840599] tcf_action_destroy+0x31/0x80 [ 2689.840812] tcf_exts_destroy+0x20/0x40 [ 2689.841019] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 2689.841296] __fl_delete+0x12d/0x180 [cls_flower] [ 2689.841549] fl_destroy+0xbd/0x140 [cls_flower] [ 2689.841792] tcf_proto_destroy+0x1f/0xc0 [ 2689.842004] tcf_chain_flush+0xab/0x170 [ 2689.842209] __tcf_block_put+0xd2/0x190 [ 2689.842413] clsact_destroy+0xb6/0x380 [sch_ingress] [ 2689.842677] __qdisc_destroy+0x51/0x150 [ 2689.842885] dev_shutdown+0x78/0x190 [ 2689.843078] unregister_netdevice_many_notify+0x226/0x7e0 [ 2689.843364] cleanup_net+0x268/0x400 [ 2689.843558] ? process_one_work+0x16c/0x4b0 [ 2689.843782] process_one_work+0x1d6/0x4b0 [ 2689.843994] worker_thread+0x1c1/0x3d0 [ 2689.844196] ? __pfx_worker_thread+0x10/0x10 [ 2689.844423] kthread+0xda/0x110 [ 2689.844608] ? __pfx_kthread+0x10/0x10 [ 2689.844809] ret_from_fork+0x31/0x50 [ 2689.845003] ? __pfx_kthread+0x10/0x10 [ 2689.845203] ret_from_fork_asm+0x1b/0x30 [ 2689.845416] [ 2767.848707] rcu: INFO: rcu_preempt self-detected stall on CPU [ 2767.849051] rcu: 2-....: (2756172 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=621785 [ 2767.849561] rcu: (t=2756768 jiffies g=2201 q=2385 ncpus=4) [ 2767.849859] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 2767.850302] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 2767.850893] Workqueue: netns cleanup_net [ 2767.851110] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 2767.851401] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 2767.852350] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 2767.852622] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 2767.852994] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 2767.853362] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 2767.853733] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 2767.854100] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 2767.854472] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 2767.854890] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2767.855188] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 2767.855560] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2767.855930] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2767.856299] PKRU: 55555554 [ 2767.856445] Call Trace: [ 2767.856584] [ 2767.856703] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 2767.856941] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 2767.857187] ? cpuacct_charge+0x3e/0x120 [ 2767.857403] ? lock_release+0x1d3/0x270 [ 2767.857609] ? lock_acquire+0x179/0x2b0 [ 2767.857814] ? cpuacct_account_field+0x23/0xf0 [ 2767.858051] ? update_process_times+0x5f/0x90 [ 2767.858285] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 2767.858562] ? tick_sched_handle+0x33/0x50 [ 2767.858778] ? tick_nohz_highres_handler+0x71/0x90 [ 2767.859028] ? __hrtimer_run_queues+0x86/0x390 [ 2767.859266] ? hrtimer_interrupt+0x100/0x240 [ 2767.859492] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 2767.859769] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 2767.860030] [ 2767.860146] [ 2767.860262] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 2767.860542] ? queued_spin_lock_slowpath+0x36/0x310 [ 2767.860801] do_raw_spin_lock+0x9b/0xa0 [ 2767.861006] __mutex_lock+0x205/0x7a0 [ 2767.861201] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2767.861465] ? up_read+0x1b/0x30 [ 2767.861642] ? tc_setup_cb_destroy+0x116/0x180 [ 2767.861880] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2767.862140] refcount_dec_and_mutex_lock+0x35/0x80 [ 2767.862389] __tcf_action_put+0x1e/0x70 [ 2767.862600] tcf_action_destroy+0x31/0x80 [ 2767.862812] tcf_exts_destroy+0x20/0x40 [ 2767.863016] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 2767.863294] __fl_delete+0x12d/0x180 [cls_flower] [ 2767.863544] fl_destroy+0xbd/0x140 [cls_flower] [ 2767.863788] tcf_proto_destroy+0x1f/0xc0 [ 2767.863996] tcf_chain_flush+0xab/0x170 [ 2767.864200] __tcf_block_put+0xd2/0x190 [ 2767.864405] clsact_destroy+0xb6/0x380 [sch_ingress] [ 2767.864666] __qdisc_destroy+0x51/0x150 [ 2767.864873] dev_shutdown+0x78/0x190 [ 2767.865066] unregister_netdevice_many_notify+0x226/0x7e0 [ 2767.865349] cleanup_net+0x268/0x400 [ 2767.865541] ? process_one_work+0x16c/0x4b0 [ 2767.865771] process_one_work+0x1d6/0x4b0 [ 2767.865984] worker_thread+0x1c1/0x3d0 [ 2767.866184] ? __pfx_worker_thread+0x10/0x10 [ 2767.866413] kthread+0xda/0x110 [ 2767.866584] ? __pfx_kthread+0x10/0x10 [ 2767.866786] ret_from_fork+0x31/0x50 [ 2767.866980] ? __pfx_kthread+0x10/0x10 [ 2767.867179] ret_from_fork_asm+0x1b/0x30 [ 2767.867394] [ 2845.870696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 2845.871051] rcu: 2-....: (2834177 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=640200 [ 2845.871562] rcu: (t=2834790 jiffies g=2201 q=2385 ncpus=4) [ 2845.871857] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 2845.872301] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 2845.872890] Workqueue: netns cleanup_net [ 2845.873114] RIP: 0010:queued_spin_lock_slowpath+0x19/0x310 [ 2845.873404] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 41 55 41 54 55 48 89 fd 53 66 90 ba 01 00 00 00 <8b> 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d [ 2845.874358] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 2845.874631] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 2845.875001] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 2845.875370] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 2845.875739] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 2845.876108] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 2845.876477] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 2845.876899] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2845.877197] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 2845.877566] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2845.877936] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2845.878303] PKRU: 55555554 [ 2845.878450] Call Trace: [ 2845.878584] [ 2845.878700] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 2845.878934] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 2845.879175] ? cpuacct_charge+0x3e/0x120 [ 2845.879384] ? lock_release+0x1d3/0x270 [ 2845.879592] ? lock_acquire+0x179/0x2b0 [ 2845.879798] ? cpuacct_account_field+0x23/0xf0 [ 2845.880032] ? update_process_times+0x5f/0x90 [ 2845.880265] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 2845.880542] ? tick_sched_handle+0x33/0x50 [ 2845.880761] ? tick_nohz_highres_handler+0x71/0x90 [ 2845.881013] ? __hrtimer_run_queues+0x86/0x390 [ 2845.881248] ? hrtimer_interrupt+0x100/0x240 [ 2845.881477] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 2845.881750] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 2845.882010] [ 2845.882127] [ 2845.882245] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 2845.882525] ? queued_spin_lock_slowpath+0x19/0x310 [ 2845.882784] do_raw_spin_lock+0x9b/0xa0 [ 2845.882990] __mutex_lock+0x205/0x7a0 [ 2845.883185] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2845.883449] ? up_read+0x1b/0x30 [ 2845.883623] ? tc_setup_cb_destroy+0x116/0x180 [ 2845.883864] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2845.884123] refcount_dec_and_mutex_lock+0x35/0x80 [ 2845.884376] __tcf_action_put+0x1e/0x70 [ 2845.884582] tcf_action_destroy+0x31/0x80 [ 2845.884797] tcf_exts_destroy+0x20/0x40 [ 2845.885001] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 2845.885278] __fl_delete+0x12d/0x180 [cls_flower] [ 2845.885530] fl_destroy+0xbd/0x140 [cls_flower] [ 2845.885774] tcf_proto_destroy+0x1f/0xc0 [ 2845.885983] tcf_chain_flush+0xab/0x170 [ 2845.886186] __tcf_block_put+0xd2/0x190 [ 2845.886390] clsact_destroy+0xb6/0x380 [sch_ingress] [ 2845.886653] __qdisc_destroy+0x51/0x150 [ 2845.886868] dev_shutdown+0x78/0x190 [ 2845.887061] unregister_netdevice_many_notify+0x226/0x7e0 [ 2845.887344] cleanup_net+0x268/0x400 [ 2845.887537] ? process_one_work+0x16c/0x4b0 [ 2845.887758] process_one_work+0x1d6/0x4b0 [ 2845.887973] worker_thread+0x1c1/0x3d0 [ 2845.888173] ? __pfx_worker_thread+0x10/0x10 [ 2845.888398] kthread+0xda/0x110 [ 2845.888570] ? __pfx_kthread+0x10/0x10 [ 2845.888771] ret_from_fork+0x31/0x50 [ 2845.888964] ? __pfx_kthread+0x10/0x10 [ 2845.889161] ret_from_fork_asm+0x1b/0x30 [ 2845.889375] [ 2923.892696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 2923.893038] rcu: 2-....: (2912182 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=657268 [ 2923.893551] rcu: (t=2912812 jiffies g=2201 q=2385 ncpus=4) [ 2923.893846] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 2923.894291] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 2923.894881] Workqueue: netns cleanup_net [ 2923.895095] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 2923.895385] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 2923.896338] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 2923.896616] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 2923.896985] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 2923.897353] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 2923.897720] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 2923.898087] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 2923.898457] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 2923.898875] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2923.899175] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 2923.899544] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2923.899913] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2923.900281] PKRU: 55555554 [ 2923.900428] Call Trace: [ 2923.900566] [ 2923.900681] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 2923.900917] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 2923.901158] ? cpuacct_charge+0x3e/0x120 [ 2923.901367] ? lock_release+0x1d3/0x270 [ 2923.901575] ? lock_acquire+0x179/0x2b0 [ 2923.901781] ? cpuacct_account_field+0x23/0xf0 [ 2923.902016] ? update_process_times+0x5f/0x90 [ 2923.902248] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 2923.902524] ? tick_sched_handle+0x33/0x50 [ 2923.902743] ? tick_nohz_highres_handler+0x71/0x90 [ 2923.902994] ? __hrtimer_run_queues+0x86/0x390 [ 2923.903229] ? hrtimer_interrupt+0x100/0x240 [ 2923.903458] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 2923.903732] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 2923.903994] [ 2923.904110] [ 2923.904227] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 2923.904508] ? queued_spin_lock_slowpath+0x36/0x310 [ 2923.904766] do_raw_spin_lock+0x9b/0xa0 [ 2923.904972] __mutex_lock+0x205/0x7a0 [ 2923.905169] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2923.905437] ? up_read+0x1b/0x30 [ 2923.905611] ? tc_setup_cb_destroy+0x116/0x180 [ 2923.905853] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 2923.906114] refcount_dec_and_mutex_lock+0x35/0x80 [ 2923.906367] __tcf_action_put+0x1e/0x70 [ 2923.906580] tcf_action_destroy+0x31/0x80 [ 2923.906795] tcf_exts_destroy+0x20/0x40 [ 2923.906999] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 2923.907279] __fl_delete+0x12d/0x180 [cls_flower] [ 2923.907533] fl_destroy+0xbd/0x140 [cls_flower] [ 2923.907777] tcf_proto_destroy+0x1f/0xc0 [ 2923.907987] tcf_chain_flush+0xab/0x170 [ 2923.908191] __tcf_block_put+0xd2/0x190 [ 2923.908395] clsact_destroy+0xb6/0x380 [sch_ingress] [ 2923.908659] __qdisc_destroy+0x51/0x150 [ 2923.908867] dev_shutdown+0x78/0x190 [ 2923.909061] unregister_netdevice_many_notify+0x226/0x7e0 [ 2923.909345] cleanup_net+0x268/0x400 [ 2923.909538] ? process_one_work+0x16c/0x4b0 [ 2923.909760] process_one_work+0x1d6/0x4b0 [ 2923.909980] worker_thread+0x1c1/0x3d0 [ 2923.910181] ? __pfx_worker_thread+0x10/0x10 [ 2923.910405] kthread+0xda/0x110 [ 2923.910578] ? __pfx_kthread+0x10/0x10 [ 2923.910778] ret_from_fork+0x31/0x50 [ 2923.910972] ? __pfx_kthread+0x10/0x10 [ 2923.911169] ret_from_fork_asm+0x1b/0x30 [ 2923.911381] [ 3001.913696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 3001.914036] rcu: 2-....: (2990186 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=675220 [ 3001.914549] rcu: (t=2990833 jiffies g=2201 q=2385 ncpus=4) [ 3001.914851] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 3001.915299] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 3001.915890] Workqueue: netns cleanup_net [ 3001.916123] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 3001.916416] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 3001.917369] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 3001.917641] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 3001.918019] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 3001.918389] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 3001.918760] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 3001.919132] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 3001.919503] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 3001.919925] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3001.920226] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 3001.920595] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3001.920967] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 3001.921337] PKRU: 55555554 [ 3001.921483] Call Trace: [ 3001.921620] [ 3001.921744] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 3001.921988] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 3001.922230] ? cpuacct_charge+0x3e/0x120 [ 3001.922441] ? lock_release+0x1d3/0x270 [ 3001.922648] ? lock_acquire+0x179/0x2b0 [ 3001.922853] ? cpuacct_account_field+0x23/0xf0 [ 3001.923094] ? update_process_times+0x5f/0x90 [ 3001.923328] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 3001.923609] ? tick_sched_handle+0x33/0x50 [ 3001.923826] ? tick_nohz_highres_handler+0x71/0x90 [ 3001.924083] ? __hrtimer_run_queues+0x86/0x390 [ 3001.924321] ? hrtimer_interrupt+0x100/0x240 [ 3001.924550] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 3001.924829] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 3001.925096] [ 3001.925213] [ 3001.925330] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 3001.925612] ? queued_spin_lock_slowpath+0x36/0x310 [ 3001.925873] do_raw_spin_lock+0x9b/0xa0 [ 3001.926091] __mutex_lock+0x205/0x7a0 [ 3001.926288] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3001.926554] ? up_read+0x1b/0x30 [ 3001.926734] ? tc_setup_cb_destroy+0x116/0x180 [ 3001.926980] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3001.927241] refcount_dec_and_mutex_lock+0x35/0x80 [ 3001.927495] __tcf_action_put+0x1e/0x70 [ 3001.927709] tcf_action_destroy+0x31/0x80 [ 3001.927923] tcf_exts_destroy+0x20/0x40 [ 3001.928131] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 3001.928412] __fl_delete+0x12d/0x180 [cls_flower] [ 3001.928664] fl_destroy+0xbd/0x140 [cls_flower] [ 3001.928910] tcf_proto_destroy+0x1f/0xc0 [ 3001.929124] tcf_chain_flush+0xab/0x170 [ 3001.929329] __tcf_block_put+0xd2/0x190 [ 3001.929535] clsact_destroy+0xb6/0x380 [sch_ingress] [ 3001.929801] __qdisc_destroy+0x51/0x150 [ 3001.930019] dev_shutdown+0x78/0x190 [ 3001.930213] unregister_netdevice_many_notify+0x226/0x7e0 [ 3001.930500] cleanup_net+0x268/0x400 [ 3001.930693] ? process_one_work+0x16c/0x4b0 [ 3001.930919] process_one_work+0x1d6/0x4b0 [ 3001.931136] worker_thread+0x1c1/0x3d0 [ 3001.931337] ? __pfx_worker_thread+0x10/0x10 [ 3001.931566] kthread+0xda/0x110 [ 3001.931742] ? __pfx_kthread+0x10/0x10 [ 3001.931949] ret_from_fork+0x31/0x50 [ 3001.932144] ? __pfx_kthread+0x10/0x10 [ 3001.932344] ret_from_fork_asm+0x1b/0x30 [ 3001.932558] [ 3079.935696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 3079.936040] rcu: 2-....: (3068191 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=692437 [ 3079.936553] rcu: (t=3068855 jiffies g=2201 q=2385 ncpus=4) [ 3079.936847] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 3079.937292] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 3079.937881] Workqueue: netns cleanup_net [ 3079.938095] RIP: 0010:queued_spin_lock_slowpath+0x19/0x310 [ 3079.938384] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 41 55 41 54 55 48 89 fd 53 66 90 ba 01 00 00 00 <8b> 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d [ 3079.939338] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 3079.939612] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 3079.939984] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 3079.940354] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 3079.940722] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 3079.941093] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 3079.941463] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 3079.941881] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3079.942183] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 3079.942554] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3079.942928] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 3079.943297] PKRU: 55555554 [ 3079.943444] Call Trace: [ 3079.943579] [ 3079.943695] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 3079.943930] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 3079.944172] ? cpuacct_charge+0x3e/0x120 [ 3079.944381] ? lock_release+0x1d3/0x270 [ 3079.944588] ? lock_acquire+0x179/0x2b0 [ 3079.944795] ? cpuacct_account_field+0x23/0xf0 [ 3079.945030] ? update_process_times+0x5f/0x90 [ 3079.945266] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 3079.945544] ? tick_sched_handle+0x33/0x50 [ 3079.945769] ? tick_nohz_highres_handler+0x71/0x90 [ 3079.946022] ? __hrtimer_run_queues+0x86/0x390 [ 3079.946258] ? hrtimer_interrupt+0x100/0x240 [ 3079.946488] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 3079.946763] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 3079.947024] [ 3079.947140] [ 3079.947258] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 3079.947538] ? queued_spin_lock_slowpath+0x19/0x310 [ 3079.947797] do_raw_spin_lock+0x9b/0xa0 [ 3079.948004] __mutex_lock+0x205/0x7a0 [ 3079.948202] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3079.948466] ? up_read+0x1b/0x30 [ 3079.948640] ? tc_setup_cb_destroy+0x116/0x180 [ 3079.948882] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3079.949143] refcount_dec_and_mutex_lock+0x35/0x80 [ 3079.949397] __tcf_action_put+0x1e/0x70 [ 3079.949604] tcf_action_destroy+0x31/0x80 [ 3079.949819] tcf_exts_destroy+0x20/0x40 [ 3079.950025] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 3079.950304] __fl_delete+0x12d/0x180 [cls_flower] [ 3079.950558] fl_destroy+0xbd/0x140 [cls_flower] [ 3079.950803] tcf_proto_destroy+0x1f/0xc0 [ 3079.951014] tcf_chain_flush+0xab/0x170 [ 3079.951217] __tcf_block_put+0xd2/0x190 [ 3079.951422] clsact_destroy+0xb6/0x380 [sch_ingress] [ 3079.951686] __qdisc_destroy+0x51/0x150 [ 3079.951894] dev_shutdown+0x78/0x190 [ 3079.952088] unregister_netdevice_many_notify+0x226/0x7e0 [ 3079.952374] cleanup_net+0x268/0x400 [ 3079.952568] ? process_one_work+0x16c/0x4b0 [ 3079.952793] process_one_work+0x1d6/0x4b0 [ 3079.953009] worker_thread+0x1c1/0x3d0 [ 3079.953210] ? __pfx_worker_thread+0x10/0x10 [ 3079.953437] kthread+0xda/0x110 [ 3079.953610] ? __pfx_kthread+0x10/0x10 [ 3079.953811] ret_from_fork+0x31/0x50 [ 3079.954006] ? __pfx_kthread+0x10/0x10 [ 3079.954206] ret_from_fork_asm+0x1b/0x30 [ 3079.954417] [ 3157.957696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 3157.958037] rcu: 2-....: (3146196 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=710723 [ 3157.958549] rcu: (t=3146877 jiffies g=2201 q=2385 ncpus=4) [ 3157.958846] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 3157.959291] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 3157.959882] Workqueue: netns cleanup_net [ 3157.960095] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 3157.960384] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 3157.961333] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 3157.961605] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 3157.961973] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 3157.962341] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 3157.962709] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 3157.963078] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 3157.963448] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 3157.963863] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3157.964162] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 3157.964531] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3157.964902] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 3157.965278] PKRU: 55555554 [ 3157.965424] Call Trace: [ 3157.965560] [ 3157.965676] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 3157.965910] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 3157.966152] ? cpuacct_charge+0x3e/0x120 [ 3157.966360] ? lock_release+0x1d3/0x270 [ 3157.966568] ? lock_acquire+0x179/0x2b0 [ 3157.966773] ? cpuacct_account_field+0x23/0xf0 [ 3157.967009] ? update_process_times+0x5f/0x90 [ 3157.967242] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 3157.967519] ? tick_sched_handle+0x33/0x50 [ 3157.967739] ? tick_nohz_highres_handler+0x71/0x90 [ 3157.967993] ? __hrtimer_run_queues+0x86/0x390 [ 3157.968228] ? hrtimer_interrupt+0x100/0x240 [ 3157.968457] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 3157.968732] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 3157.968991] [ 3157.969108] [ 3157.969226] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 3157.969506] ? queued_spin_lock_slowpath+0x36/0x310 [ 3157.969765] do_raw_spin_lock+0x9b/0xa0 [ 3157.969971] __mutex_lock+0x205/0x7a0 [ 3157.970168] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3157.970432] ? up_read+0x1b/0x30 [ 3157.970605] ? tc_setup_cb_destroy+0x116/0x180 [ 3157.970846] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3157.971107] refcount_dec_and_mutex_lock+0x35/0x80 [ 3157.971360] __tcf_action_put+0x1e/0x70 [ 3157.971567] tcf_action_destroy+0x31/0x80 [ 3157.971783] tcf_exts_destroy+0x20/0x40 [ 3157.971988] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 3157.972266] __fl_delete+0x12d/0x180 [cls_flower] [ 3157.972519] fl_destroy+0xbd/0x140 [cls_flower] [ 3157.972765] tcf_proto_destroy+0x1f/0xc0 [ 3157.972975] tcf_chain_flush+0xab/0x170 [ 3157.973178] __tcf_block_put+0xd2/0x190 [ 3157.973383] clsact_destroy+0xb6/0x380 [sch_ingress] [ 3157.973649] __qdisc_destroy+0x51/0x150 [ 3157.973857] dev_shutdown+0x78/0x190 [ 3157.974049] unregister_netdevice_many_notify+0x226/0x7e0 [ 3157.974334] cleanup_net+0x268/0x400 [ 3157.974526] ? process_one_work+0x16c/0x4b0 [ 3157.974748] process_one_work+0x1d6/0x4b0 [ 3157.974963] worker_thread+0x1c1/0x3d0 [ 3157.975163] ? __pfx_worker_thread+0x10/0x10 [ 3157.975396] kthread+0xda/0x110 [ 3157.975568] ? __pfx_kthread+0x10/0x10 [ 3157.975769] ret_from_fork+0x31/0x50 [ 3157.975966] ? __pfx_kthread+0x10/0x10 [ 3157.976165] ret_from_fork_asm+0x1b/0x30 [ 3157.976376] [ 3235.979695] rcu: INFO: rcu_preempt self-detected stall on CPU [ 3235.980028] rcu: 2-....: (3224201 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=728636 [ 3235.980537] rcu: (t=3224899 jiffies g=2201 q=2385 ncpus=4) [ 3235.980832] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 3235.981281] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 3235.981868] Workqueue: netns cleanup_net [ 3235.982081] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 3235.982371] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 3235.983322] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 3235.983595] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 3235.983965] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 3235.984333] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 3235.984702] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 3235.985075] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 3235.985443] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 3235.985862] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3235.986160] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 3235.986528] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3235.986899] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 3235.987268] PKRU: 55555554 [ 3235.987413] Call Trace: [ 3235.987547] [ 3235.987662] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 3235.987899] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 3235.988138] ? cpuacct_charge+0x3e/0x120 [ 3235.988349] ? lock_release+0x1d3/0x270 [ 3235.988554] ? lock_acquire+0x179/0x2b0 [ 3235.988759] ? cpuacct_account_field+0x23/0xf0 [ 3235.988997] ? update_process_times+0x5f/0x90 [ 3235.989227] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 3235.989508] ? tick_sched_handle+0x33/0x50 [ 3235.989725] ? tick_nohz_highres_handler+0x71/0x90 [ 3235.989978] ? __hrtimer_run_queues+0x86/0x390 [ 3235.990215] ? hrtimer_interrupt+0x100/0x240 [ 3235.990445] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 3235.990720] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 3235.990981] [ 3235.991096] [ 3235.991214] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 3235.991495] ? queued_spin_lock_slowpath+0x36/0x310 [ 3235.991754] do_raw_spin_lock+0x9b/0xa0 [ 3235.991959] __mutex_lock+0x205/0x7a0 [ 3235.992155] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3235.992416] ? up_read+0x1b/0x30 [ 3235.992592] ? tc_setup_cb_destroy+0x116/0x180 [ 3235.992829] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3235.993090] refcount_dec_and_mutex_lock+0x35/0x80 [ 3235.993343] __tcf_action_put+0x1e/0x70 [ 3235.993551] tcf_action_destroy+0x31/0x80 [ 3235.993766] tcf_exts_destroy+0x20/0x40 [ 3235.993971] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 3235.994248] __fl_delete+0x12d/0x180 [cls_flower] [ 3235.994501] fl_destroy+0xbd/0x140 [cls_flower] [ 3235.994747] tcf_proto_destroy+0x1f/0xc0 [ 3235.994961] tcf_chain_flush+0xab/0x170 [ 3235.995164] __tcf_block_put+0xd2/0x190 [ 3235.995370] clsact_destroy+0xb6/0x380 [sch_ingress] [ 3235.995635] __qdisc_destroy+0x51/0x150 [ 3235.995843] dev_shutdown+0x78/0x190 [ 3235.996039] unregister_netdevice_many_notify+0x226/0x7e0 [ 3235.996322] cleanup_net+0x268/0x400 [ 3235.996514] ? process_one_work+0x16c/0x4b0 [ 3235.996740] process_one_work+0x1d6/0x4b0 [ 3235.996954] worker_thread+0x1c1/0x3d0 [ 3235.997154] ? __pfx_worker_thread+0x10/0x10 [ 3235.997388] kthread+0xda/0x110 [ 3235.997558] ? __pfx_kthread+0x10/0x10 [ 3235.997758] ret_from_fork+0x31/0x50 [ 3235.997952] ? __pfx_kthread+0x10/0x10 [ 3235.998153] ret_from_fork_asm+0x1b/0x30 [ 3235.998366] [ 3314.001696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 3314.002029] rcu: 2-....: (3302206 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=746581 [ 3314.002541] rcu: (t=3302921 jiffies g=2201 q=2385 ncpus=4) [ 3314.002836] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 3314.003279] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 3314.003870] Workqueue: netns cleanup_net [ 3314.004085] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 3314.004374] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 3314.005337] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 3314.005612] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 3314.005982] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 3314.006349] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 3314.006717] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 3314.007085] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 3314.007455] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 3314.007869] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3314.008170] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 3314.008539] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3314.008909] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 3314.009275] PKRU: 55555554 [ 3314.009423] Call Trace: [ 3314.009558] [ 3314.009672] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 3314.009907] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 3314.010150] ? cpuacct_charge+0x3e/0x120 [ 3314.010359] ? lock_release+0x1d3/0x270 [ 3314.010565] ? lock_acquire+0x179/0x2b0 [ 3314.010773] ? cpuacct_account_field+0x23/0xf0 [ 3314.011009] ? update_process_times+0x5f/0x90 [ 3314.011243] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 3314.011523] ? tick_sched_handle+0x33/0x50 [ 3314.011742] ? tick_nohz_highres_handler+0x71/0x90 [ 3314.011994] ? __hrtimer_run_queues+0x86/0x390 [ 3314.012231] ? hrtimer_interrupt+0x100/0x240 [ 3314.012461] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 3314.012736] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 3314.012999] [ 3314.013117] [ 3314.013235] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 3314.013515] ? queued_spin_lock_slowpath+0x36/0x310 [ 3314.013774] do_raw_spin_lock+0x9b/0xa0 [ 3314.013981] __mutex_lock+0x205/0x7a0 [ 3314.014178] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3314.014443] ? up_read+0x1b/0x30 [ 3314.014623] ? tc_setup_cb_destroy+0x116/0x180 [ 3314.014862] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3314.015123] refcount_dec_and_mutex_lock+0x35/0x80 [ 3314.015377] __tcf_action_put+0x1e/0x70 [ 3314.015592] tcf_action_destroy+0x31/0x80 [ 3314.015807] tcf_exts_destroy+0x20/0x40 [ 3314.016014] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 3314.016293] __fl_delete+0x12d/0x180 [cls_flower] [ 3314.016546] fl_destroy+0xbd/0x140 [cls_flower] [ 3314.016791] tcf_proto_destroy+0x1f/0xc0 [ 3314.017002] tcf_chain_flush+0xab/0x170 [ 3314.017207] __tcf_block_put+0xd2/0x190 [ 3314.017412] clsact_destroy+0xb6/0x380 [sch_ingress] [ 3314.017676] __qdisc_destroy+0x51/0x150 [ 3314.017883] dev_shutdown+0x78/0x190 [ 3314.018076] unregister_netdevice_many_notify+0x226/0x7e0 [ 3314.018362] cleanup_net+0x268/0x400 [ 3314.018555] ? process_one_work+0x16c/0x4b0 [ 3314.018778] process_one_work+0x1d6/0x4b0 [ 3314.018993] worker_thread+0x1c1/0x3d0 [ 3314.019199] ? __pfx_worker_thread+0x10/0x10 [ 3314.019425] kthread+0xda/0x110 [ 3314.019597] ? __pfx_kthread+0x10/0x10 [ 3314.019796] ret_from_fork+0x31/0x50 [ 3314.019990] ? __pfx_kthread+0x10/0x10 [ 3314.020190] ret_from_fork_asm+0x1b/0x30 [ 3314.020401] [ 3392.023707] rcu: INFO: rcu_preempt self-detected stall on CPU [ 3392.024048] rcu: 2-....: (3380211 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=764373 [ 3392.024568] rcu: (t=3380943 jiffies g=2201 q=2385 ncpus=4) [ 3392.024868] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 3392.025312] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 3392.025900] Workqueue: netns cleanup_net [ 3392.026118] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 3392.026408] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 3392.027358] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 3392.027632] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 3392.028003] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 3392.028370] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 3392.028742] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 3392.029112] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 3392.029481] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 3392.029899] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3392.030199] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 3392.030569] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3392.030937] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 3392.031308] PKRU: 55555554 [ 3392.031454] Call Trace: [ 3392.031594] [ 3392.031713] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 3392.031948] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 3392.032189] ? cpuacct_charge+0x3e/0x120 [ 3392.032398] ? lock_release+0x1d3/0x270 [ 3392.032603] ? lock_acquire+0x179/0x2b0 [ 3392.032809] ? cpuacct_account_field+0x23/0xf0 [ 3392.033043] ? update_process_times+0x5f/0x90 [ 3392.033276] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 3392.033555] ? tick_sched_handle+0x33/0x50 [ 3392.033773] ? tick_nohz_highres_handler+0x71/0x90 [ 3392.034025] ? __hrtimer_run_queues+0x86/0x390 [ 3392.034266] ? hrtimer_interrupt+0x100/0x240 [ 3392.034496] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 3392.034770] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 3392.035030] [ 3392.035148] [ 3392.035265] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 3392.035544] ? queued_spin_lock_slowpath+0x36/0x310 [ 3392.035802] do_raw_spin_lock+0x9b/0xa0 [ 3392.036007] __mutex_lock+0x205/0x7a0 [ 3392.036204] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3392.036466] ? up_read+0x1b/0x30 [ 3392.036641] ? tc_setup_cb_destroy+0x116/0x180 [ 3392.036882] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3392.037142] refcount_dec_and_mutex_lock+0x35/0x80 [ 3392.037394] __tcf_action_put+0x1e/0x70 [ 3392.037600] tcf_action_destroy+0x31/0x80 [ 3392.037814] tcf_exts_destroy+0x20/0x40 [ 3392.038020] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 3392.038299] __fl_delete+0x12d/0x180 [cls_flower] [ 3392.038552] fl_destroy+0xbd/0x140 [cls_flower] [ 3392.038796] tcf_proto_destroy+0x1f/0xc0 [ 3392.039006] tcf_chain_flush+0xab/0x170 [ 3392.039209] __tcf_block_put+0xd2/0x190 [ 3392.039412] clsact_destroy+0xb6/0x380 [sch_ingress] [ 3392.039675] __qdisc_destroy+0x51/0x150 [ 3392.039881] dev_shutdown+0x78/0x190 [ 3392.040073] unregister_netdevice_many_notify+0x226/0x7e0 [ 3392.040359] cleanup_net+0x268/0x400 [ 3392.040551] ? process_one_work+0x16c/0x4b0 [ 3392.040773] process_one_work+0x1d6/0x4b0 [ 3392.040987] worker_thread+0x1c1/0x3d0 [ 3392.041188] ? __pfx_worker_thread+0x10/0x10 [ 3392.041414] kthread+0xda/0x110 [ 3392.041586] ? __pfx_kthread+0x10/0x10 [ 3392.041786] ret_from_fork+0x31/0x50 [ 3392.041979] ? __pfx_kthread+0x10/0x10 [ 3392.042178] ret_from_fork_asm+0x1b/0x30 [ 3392.042389] [ 3470.045696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 3470.046031] rcu: 2-....: (3458216 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=783292 [ 3470.046540] rcu: (t=3458965 jiffies g=2201 q=2386 ncpus=4) [ 3470.046830] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 3470.047274] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 3470.047862] Workqueue: netns cleanup_net [ 3470.048076] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 3470.048365] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 3470.049314] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 3470.049588] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 3470.049963] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 3470.050331] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 3470.050700] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 3470.051070] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 3470.051438] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 3470.051854] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3470.052153] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 3470.052522] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3470.052888] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 3470.053253] PKRU: 55555554 [ 3470.053400] Call Trace: [ 3470.053535] [ 3470.053649] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 3470.053888] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 3470.054129] ? cpuacct_charge+0x3e/0x120 [ 3470.054338] ? lock_release+0x1d3/0x270 [ 3470.054542] ? lock_acquire+0x179/0x2b0 [ 3470.054749] ? cpuacct_account_field+0x23/0xf0 [ 3470.054985] ? update_process_times+0x5f/0x90 [ 3470.055218] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 3470.055494] ? tick_sched_handle+0x33/0x50 [ 3470.055711] ? tick_nohz_highres_handler+0x71/0x90 [ 3470.055962] ? __hrtimer_run_queues+0x86/0x390 [ 3470.056200] ? hrtimer_interrupt+0x100/0x240 [ 3470.056428] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 3470.056703] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 3470.056963] [ 3470.057079] [ 3470.057196] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 3470.057474] ? queued_spin_lock_slowpath+0x36/0x310 [ 3470.057732] do_raw_spin_lock+0x9b/0xa0 [ 3470.057936] __mutex_lock+0x205/0x7a0 [ 3470.058131] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3470.058392] ? up_read+0x1b/0x30 [ 3470.058569] ? tc_setup_cb_destroy+0x116/0x180 [ 3470.058807] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3470.059068] refcount_dec_and_mutex_lock+0x35/0x80 [ 3470.059320] __tcf_action_put+0x1e/0x70 [ 3470.059526] tcf_action_destroy+0x31/0x80 [ 3470.059740] tcf_exts_destroy+0x20/0x40 [ 3470.059945] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 3470.060224] __fl_delete+0x12d/0x180 [cls_flower] [ 3470.060476] fl_destroy+0xbd/0x140 [cls_flower] [ 3470.060719] tcf_proto_destroy+0x1f/0xc0 [ 3470.060929] tcf_chain_flush+0xab/0x170 [ 3470.061133] __tcf_block_put+0xd2/0x190 [ 3470.061337] clsact_destroy+0xb6/0x380 [sch_ingress] [ 3470.061601] __qdisc_destroy+0x51/0x150 [ 3470.061807] dev_shutdown+0x78/0x190 [ 3470.061998] unregister_netdevice_many_notify+0x226/0x7e0 [ 3470.062284] cleanup_net+0x268/0x400 [ 3470.062476] ? process_one_work+0x16c/0x4b0 [ 3470.062698] process_one_work+0x1d6/0x4b0 [ 3470.062910] worker_thread+0x1c1/0x3d0 [ 3470.063111] ? __pfx_worker_thread+0x10/0x10 [ 3470.063339] kthread+0xda/0x110 [ 3470.063511] ? __pfx_kthread+0x10/0x10 [ 3470.063717] ret_from_fork+0x31/0x50 [ 3470.063909] ? __pfx_kthread+0x10/0x10 [ 3470.064107] ret_from_fork_asm+0x1b/0x30 [ 3470.064317] [ 3548.066696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 3548.067026] rcu: 2-....: (3536220 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=801971 [ 3548.067538] rcu: (t=3536986 jiffies g=2201 q=2387 ncpus=4) [ 3548.067840] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 3548.068287] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 3548.068876] Workqueue: netns cleanup_net [ 3548.069091] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 3548.069381] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 3548.070320] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 3548.070592] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 3548.070959] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 3548.071326] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 3548.071694] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 3548.072065] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 3548.072432] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 3548.072850] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3548.073147] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 3548.073517] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3548.073886] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 3548.074251] PKRU: 55555554 [ 3548.074396] Call Trace: [ 3548.074531] [ 3548.074653] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 3548.074892] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 3548.075133] ? cpuacct_charge+0x3e/0x120 [ 3548.075342] ? lock_release+0x1d3/0x270 [ 3548.075546] ? lock_acquire+0x179/0x2b0 [ 3548.075751] ? cpuacct_account_field+0x23/0xf0 [ 3548.075989] ? update_process_times+0x5f/0x90 [ 3548.076224] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 3548.076501] ? tick_sched_handle+0x33/0x50 [ 3548.076718] ? tick_nohz_highres_handler+0x71/0x90 [ 3548.076969] ? __hrtimer_run_queues+0x86/0x390 [ 3548.077206] ? hrtimer_interrupt+0x100/0x240 [ 3548.077435] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 3548.077710] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 3548.077971] [ 3548.078088] [ 3548.078205] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 3548.078484] ? queued_spin_lock_slowpath+0x36/0x310 [ 3548.078744] do_raw_spin_lock+0x9b/0xa0 [ 3548.078950] __mutex_lock+0x205/0x7a0 [ 3548.079146] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3548.079408] ? up_read+0x1b/0x30 [ 3548.079584] ? tc_setup_cb_destroy+0x116/0x180 [ 3548.079824] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3548.080084] refcount_dec_and_mutex_lock+0x35/0x80 [ 3548.080335] __tcf_action_put+0x1e/0x70 [ 3548.080544] tcf_action_destroy+0x31/0x80 [ 3548.080758] tcf_exts_destroy+0x20/0x40 [ 3548.080964] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 3548.081243] __fl_delete+0x12d/0x180 [cls_flower] [ 3548.081496] fl_destroy+0xbd/0x140 [cls_flower] [ 3548.081740] tcf_proto_destroy+0x1f/0xc0 [ 3548.081951] tcf_chain_flush+0xab/0x170 [ 3548.082155] __tcf_block_put+0xd2/0x190 [ 3548.082360] clsact_destroy+0xb6/0x380 [sch_ingress] [ 3548.082623] __qdisc_destroy+0x51/0x150 [ 3548.082829] dev_shutdown+0x78/0x190 [ 3548.083022] unregister_netdevice_many_notify+0x226/0x7e0 [ 3548.083310] cleanup_net+0x268/0x400 [ 3548.083504] ? process_one_work+0x16c/0x4b0 [ 3548.083727] process_one_work+0x1d6/0x4b0 [ 3548.083938] worker_thread+0x1c1/0x3d0 [ 3548.084140] ? __pfx_worker_thread+0x10/0x10 [ 3548.084366] kthread+0xda/0x110 [ 3548.084539] ? __pfx_kthread+0x10/0x10 [ 3548.084739] ret_from_fork+0x31/0x50 [ 3548.084933] ? __pfx_kthread+0x10/0x10 [ 3548.085130] ret_from_fork_asm+0x1b/0x30 [ 3548.085342] [ 3626.087696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 3626.088044] rcu: 2-....: (3614224 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=820312 [ 3626.088556] rcu: (t=3615007 jiffies g=2201 q=2387 ncpus=4) [ 3626.088848] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 3626.089290] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 3626.089877] Workqueue: netns cleanup_net [ 3626.090087] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 3626.090378] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 3626.091327] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 3626.091602] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 3626.091972] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 3626.092340] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 3626.092708] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 3626.093082] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 3626.093449] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 3626.093868] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3626.094168] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 3626.094538] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3626.094907] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 3626.095275] PKRU: 55555554 [ 3626.095419] Call Trace: [ 3626.095553] [ 3626.095667] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 3626.095904] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 3626.096145] ? cpuacct_charge+0x3e/0x120 [ 3626.096353] ? lock_release+0x1d3/0x270 [ 3626.096558] ? lock_acquire+0x179/0x2b0 [ 3626.096770] ? cpuacct_account_field+0x23/0xf0 [ 3626.097007] ? update_process_times+0x5f/0x90 [ 3626.097239] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 3626.097519] ? tick_sched_handle+0x33/0x50 [ 3626.097734] ? tick_nohz_highres_handler+0x71/0x90 [ 3626.097989] ? __hrtimer_run_queues+0x86/0x390 [ 3626.098228] ? hrtimer_interrupt+0x100/0x240 [ 3626.098455] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 3626.098731] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 3626.098991] [ 3626.099108] [ 3626.099224] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 3626.099505] ? queued_spin_lock_slowpath+0x36/0x310 [ 3626.099765] do_raw_spin_lock+0x9b/0xa0 [ 3626.099970] __mutex_lock+0x205/0x7a0 [ 3626.100166] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3626.100429] ? up_read+0x1b/0x30 [ 3626.100606] ? tc_setup_cb_destroy+0x116/0x180 [ 3626.100845] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3626.101106] refcount_dec_and_mutex_lock+0x35/0x80 [ 3626.101358] __tcf_action_put+0x1e/0x70 [ 3626.101565] tcf_action_destroy+0x31/0x80 [ 3626.101779] tcf_exts_destroy+0x20/0x40 [ 3626.101983] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 3626.102264] __fl_delete+0x12d/0x180 [cls_flower] [ 3626.102514] fl_destroy+0xbd/0x140 [cls_flower] [ 3626.102760] tcf_proto_destroy+0x1f/0xc0 [ 3626.102974] tcf_chain_flush+0xab/0x170 [ 3626.103178] __tcf_block_put+0xd2/0x190 [ 3626.103384] clsact_destroy+0xb6/0x380 [sch_ingress] [ 3626.103647] __qdisc_destroy+0x51/0x150 [ 3626.103855] dev_shutdown+0x78/0x190 [ 3626.104047] unregister_netdevice_many_notify+0x226/0x7e0 [ 3626.104328] cleanup_net+0x268/0x400 [ 3626.104521] ? process_one_work+0x16c/0x4b0 [ 3626.104746] process_one_work+0x1d6/0x4b0 [ 3626.104957] worker_thread+0x1c1/0x3d0 [ 3626.105161] ? __pfx_worker_thread+0x10/0x10 [ 3626.105389] kthread+0xda/0x110 [ 3626.105560] ? __pfx_kthread+0x10/0x10 [ 3626.105761] ret_from_fork+0x31/0x50 [ 3626.105954] ? __pfx_kthread+0x10/0x10 [ 3626.106152] ret_from_fork_asm+0x1b/0x30 [ 3626.106363] [ 3704.108695] rcu: INFO: rcu_preempt self-detected stall on CPU [ 3704.109038] rcu: 2-....: (3692228 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=838837 [ 3704.109549] rcu: (t=3693028 jiffies g=2201 q=2387 ncpus=4) [ 3704.109843] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 3704.110287] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 3704.110883] Workqueue: netns cleanup_net [ 3704.111100] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 3704.111390] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 3704.112344] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 3704.112621] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 3704.112992] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 3704.113362] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 3704.113732] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 3704.114103] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 3704.114475] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 3704.114895] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3704.115197] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 3704.115569] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3704.115940] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 3704.116312] PKRU: 55555554 [ 3704.116461] Call Trace: [ 3704.116596] [ 3704.116712] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 3704.116948] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 3704.117191] ? cpuacct_charge+0x3e/0x120 [ 3704.117401] ? lock_release+0x1d3/0x270 [ 3704.117606] ? lock_acquire+0x179/0x2b0 [ 3704.117813] ? cpuacct_account_field+0x23/0xf0 [ 3704.118049] ? update_process_times+0x5f/0x90 [ 3704.118283] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 3704.118562] ? tick_sched_handle+0x33/0x50 [ 3704.118782] ? tick_nohz_highres_handler+0x71/0x90 [ 3704.119036] ? __hrtimer_run_queues+0x86/0x390 [ 3704.119275] ? hrtimer_interrupt+0x100/0x240 [ 3704.119504] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 3704.119784] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 3704.120046] [ 3704.120163] [ 3704.120281] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 3704.120561] ? queued_spin_lock_slowpath+0x36/0x310 [ 3704.120822] do_raw_spin_lock+0x9b/0xa0 [ 3704.121026] __mutex_lock+0x205/0x7a0 [ 3704.121222] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3704.121484] ? up_read+0x1b/0x30 [ 3704.121662] ? tc_setup_cb_destroy+0x116/0x180 [ 3704.121903] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3704.122165] refcount_dec_and_mutex_lock+0x35/0x80 [ 3704.122418] __tcf_action_put+0x1e/0x70 [ 3704.122631] tcf_action_destroy+0x31/0x80 [ 3704.122844] tcf_exts_destroy+0x20/0x40 [ 3704.123051] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 3704.123331] __fl_delete+0x12d/0x180 [cls_flower] [ 3704.123585] fl_destroy+0xbd/0x140 [cls_flower] [ 3704.123827] tcf_proto_destroy+0x1f/0xc0 [ 3704.124040] tcf_chain_flush+0xab/0x170 [ 3704.124243] __tcf_block_put+0xd2/0x190 [ 3704.124448] clsact_destroy+0xb6/0x380 [sch_ingress] [ 3704.124714] __qdisc_destroy+0x51/0x150 [ 3704.124919] dev_shutdown+0x78/0x190 [ 3704.125112] unregister_netdevice_many_notify+0x226/0x7e0 [ 3704.125398] cleanup_net+0x268/0x400 [ 3704.125592] ? process_one_work+0x16c/0x4b0 [ 3704.125815] process_one_work+0x1d6/0x4b0 [ 3704.126028] worker_thread+0x1c1/0x3d0 [ 3704.126231] ? __pfx_worker_thread+0x10/0x10 [ 3704.126459] kthread+0xda/0x110 [ 3704.126631] ? __pfx_kthread+0x10/0x10 [ 3704.126832] ret_from_fork+0x31/0x50 [ 3704.127029] ? __pfx_kthread+0x10/0x10 [ 3704.127230] ret_from_fork_asm+0x1b/0x30 [ 3704.127442] [ 3782.129696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 3782.130028] rcu: 2-....: (3770232 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=857379 [ 3782.130539] rcu: (t=3771049 jiffies g=2201 q=2388 ncpus=4) [ 3782.130830] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 3782.131275] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 3782.131862] Workqueue: netns cleanup_net [ 3782.132076] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 3782.132369] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 3782.133316] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 3782.133588] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 3782.133959] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 3782.134324] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 3782.134695] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 3782.135064] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 3782.135434] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 3782.135850] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3782.136149] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 3782.136518] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3782.136888] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 3782.137256] PKRU: 55555554 [ 3782.137403] Call Trace: [ 3782.137538] [ 3782.137651] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 3782.137888] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 3782.138128] ? cpuacct_charge+0x3e/0x120 [ 3782.138337] ? lock_release+0x1d3/0x270 [ 3782.138541] ? lock_acquire+0x179/0x2b0 [ 3782.138747] ? cpuacct_account_field+0x23/0xf0 [ 3782.138982] ? update_process_times+0x5f/0x90 [ 3782.139215] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 3782.139493] ? tick_sched_handle+0x33/0x50 [ 3782.139710] ? tick_nohz_highres_handler+0x71/0x90 [ 3782.139961] ? __hrtimer_run_queues+0x86/0x390 [ 3782.140198] ? hrtimer_interrupt+0x100/0x240 [ 3782.140426] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 3782.140699] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 3782.140960] [ 3782.141077] [ 3782.141195] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 3782.141473] ? queued_spin_lock_slowpath+0x36/0x310 [ 3782.141732] do_raw_spin_lock+0x9b/0xa0 [ 3782.141936] __mutex_lock+0x205/0x7a0 [ 3782.142136] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3782.142398] ? up_read+0x1b/0x30 [ 3782.142574] ? tc_setup_cb_destroy+0x116/0x180 [ 3782.142813] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3782.143074] refcount_dec_and_mutex_lock+0x35/0x80 [ 3782.143327] __tcf_action_put+0x1e/0x70 [ 3782.143537] tcf_action_destroy+0x31/0x80 [ 3782.143752] tcf_exts_destroy+0x20/0x40 [ 3782.143957] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 3782.144237] __fl_delete+0x12d/0x180 [cls_flower] [ 3782.144489] fl_destroy+0xbd/0x140 [cls_flower] [ 3782.144732] tcf_proto_destroy+0x1f/0xc0 [ 3782.144943] tcf_chain_flush+0xab/0x170 [ 3782.145147] __tcf_block_put+0xd2/0x190 [ 3782.145351] clsact_destroy+0xb6/0x380 [sch_ingress] [ 3782.145615] __qdisc_destroy+0x51/0x150 [ 3782.145822] dev_shutdown+0x78/0x190 [ 3782.146015] unregister_netdevice_many_notify+0x226/0x7e0 [ 3782.146299] cleanup_net+0x268/0x400 [ 3782.146491] ? process_one_work+0x16c/0x4b0 [ 3782.146714] process_one_work+0x1d6/0x4b0 [ 3782.146927] worker_thread+0x1c1/0x3d0 [ 3782.147129] ? __pfx_worker_thread+0x10/0x10 [ 3782.147357] kthread+0xda/0x110 [ 3782.147529] ? __pfx_kthread+0x10/0x10 [ 3782.147729] ret_from_fork+0x31/0x50 [ 3782.147923] ? __pfx_kthread+0x10/0x10 [ 3782.148122] ret_from_fork_asm+0x1b/0x30 [ 3782.148333] [ 3860.151696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 3860.152035] rcu: 2-....: (3848237 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=875226 [ 3860.152542] rcu: (t=3849071 jiffies g=2201 q=2388 ncpus=4) [ 3860.152838] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 3860.153279] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 3860.153864] Workqueue: netns cleanup_net [ 3860.154078] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 3860.154367] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 3860.155321] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 3860.155593] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 3860.155964] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 3860.156335] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 3860.156704] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 3860.157076] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 3860.157449] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 3860.157865] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3860.158166] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 3860.158537] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3860.158907] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 3860.159275] PKRU: 55555554 [ 3860.159422] Call Trace: [ 3860.159557] [ 3860.159672] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 3860.159909] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 3860.160151] ? cpuacct_charge+0x3e/0x120 [ 3860.160360] ? lock_release+0x1d3/0x270 [ 3860.160568] ? lock_acquire+0x179/0x2b0 [ 3860.160773] ? cpuacct_account_field+0x23/0xf0 [ 3860.161009] ? update_process_times+0x5f/0x90 [ 3860.161241] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 3860.161519] ? tick_sched_handle+0x33/0x50 [ 3860.161743] ? tick_nohz_highres_handler+0x71/0x90 [ 3860.161997] ? __hrtimer_run_queues+0x86/0x390 [ 3860.162231] ? hrtimer_interrupt+0x100/0x240 [ 3860.162461] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 3860.162736] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 3860.162997] [ 3860.163115] [ 3860.163232] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 3860.163510] ? queued_spin_lock_slowpath+0x36/0x310 [ 3860.163769] do_raw_spin_lock+0x9b/0xa0 [ 3860.163976] __mutex_lock+0x205/0x7a0 [ 3860.164172] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3860.164435] ? up_read+0x1b/0x30 [ 3860.164610] ? tc_setup_cb_destroy+0x116/0x180 [ 3860.164850] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3860.165111] refcount_dec_and_mutex_lock+0x35/0x80 [ 3860.165364] __tcf_action_put+0x1e/0x70 [ 3860.165579] tcf_action_destroy+0x31/0x80 [ 3860.165797] tcf_exts_destroy+0x20/0x40 [ 3860.166002] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 3860.166280] __fl_delete+0x12d/0x180 [cls_flower] [ 3860.166531] fl_destroy+0xbd/0x140 [cls_flower] [ 3860.166776] tcf_proto_destroy+0x1f/0xc0 [ 3860.166986] tcf_chain_flush+0xab/0x170 [ 3860.167189] __tcf_block_put+0xd2/0x190 [ 3860.167393] clsact_destroy+0xb6/0x380 [sch_ingress] [ 3860.167657] __qdisc_destroy+0x51/0x150 [ 3860.167866] dev_shutdown+0x78/0x190 [ 3860.168059] unregister_netdevice_many_notify+0x226/0x7e0 [ 3860.168342] cleanup_net+0x268/0x400 [ 3860.168536] ? process_one_work+0x16c/0x4b0 [ 3860.168757] process_one_work+0x1d6/0x4b0 [ 3860.168973] worker_thread+0x1c1/0x3d0 [ 3860.169174] ? __pfx_worker_thread+0x10/0x10 [ 3860.169399] kthread+0xda/0x110 [ 3860.169571] ? __pfx_kthread+0x10/0x10 [ 3860.169771] ret_from_fork+0x31/0x50 [ 3860.169964] ? __pfx_kthread+0x10/0x10 [ 3860.170163] ret_from_fork_asm+0x1b/0x30 [ 3860.170376] [ 3938.172709] rcu: INFO: rcu_preempt self-detected stall on CPU [ 3938.173058] rcu: 2-....: (3926241 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=892149 [ 3938.173571] rcu: (t=3927092 jiffies g=2201 q=2388 ncpus=4) [ 3938.173871] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 3938.174317] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 3938.174911] Workqueue: netns cleanup_net [ 3938.175130] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 3938.175422] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 3938.176377] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 3938.176650] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 3938.177027] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 3938.177396] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 3938.177770] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 3938.178140] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 3938.178516] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 3938.178934] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3938.179236] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 3938.179608] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3938.179980] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 3938.180350] PKRU: 55555554 [ 3938.180496] Call Trace: [ 3938.180637] [ 3938.180756] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 3938.180990] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 3938.181233] ? cpuacct_charge+0x3e/0x120 [ 3938.181446] ? lock_release+0x1d3/0x270 [ 3938.181653] ? lock_acquire+0x179/0x2b0 [ 3938.181859] ? cpuacct_account_field+0x23/0xf0 [ 3938.182094] ? update_process_times+0x5f/0x90 [ 3938.182327] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 3938.182606] ? tick_sched_handle+0x33/0x50 [ 3938.182826] ? tick_nohz_highres_handler+0x71/0x90 [ 3938.183079] ? __hrtimer_run_queues+0x86/0x390 [ 3938.183314] ? hrtimer_interrupt+0x100/0x240 [ 3938.183544] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 3938.183819] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 3938.184080] [ 3938.184197] [ 3938.184315] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 3938.184593] ? queued_spin_lock_slowpath+0x36/0x310 [ 3938.184854] do_raw_spin_lock+0x9b/0xa0 [ 3938.185061] __mutex_lock+0x205/0x7a0 [ 3938.185258] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3938.185521] ? up_read+0x1b/0x30 [ 3938.185695] ? tc_setup_cb_destroy+0x116/0x180 [ 3938.185934] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 3938.186196] refcount_dec_and_mutex_lock+0x35/0x80 [ 3938.186450] __tcf_action_put+0x1e/0x70 [ 3938.186657] tcf_action_destroy+0x31/0x80 [ 3938.186873] tcf_exts_destroy+0x20/0x40 [ 3938.187079] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 3938.187356] __fl_delete+0x12d/0x180 [cls_flower] [ 3938.187610] fl_destroy+0xbd/0x140 [cls_flower] [ 3938.187856] tcf_proto_destroy+0x1f/0xc0 [ 3938.188065] tcf_chain_flush+0xab/0x170 [ 3938.188269] __tcf_block_put+0xd2/0x190 [ 3938.188474] clsact_destroy+0xb6/0x380 [sch_ingress] [ 3938.188739] __qdisc_destroy+0x51/0x150 [ 3938.188947] dev_shutdown+0x78/0x190 [ 3938.189140] unregister_netdevice_many_notify+0x226/0x7e0 [ 3938.189425] cleanup_net+0x268/0x400 [ 3938.189618] ? process_one_work+0x16c/0x4b0 [ 3938.189840] process_one_work+0x1d6/0x4b0 [ 3938.190058] worker_thread+0x1c1/0x3d0 [ 3938.190259] ? __pfx_worker_thread+0x10/0x10 [ 3938.190485] kthread+0xda/0x110 [ 3938.190658] ? __pfx_kthread+0x10/0x10 [ 3938.190859] ret_from_fork+0x31/0x50 [ 3938.191053] ? __pfx_kthread+0x10/0x10 [ 3938.191253] ret_from_fork_asm+0x1b/0x30 [ 3938.191471] [ 4016.194696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 4016.195031] rcu: 2-....: (4004246 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=910420 [ 4016.195543] rcu: (t=4005114 jiffies g=2201 q=2388 ncpus=4) [ 4016.195839] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 4016.196283] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 4016.196873] Workqueue: netns cleanup_net [ 4016.197086] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 4016.197377] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 4016.198329] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 4016.198602] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 4016.198973] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 4016.199345] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 4016.199717] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 4016.200086] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 4016.200456] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 4016.200875] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4016.201181] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 4016.201551] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4016.201921] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 4016.202291] PKRU: 55555554 [ 4016.202437] Call Trace: [ 4016.202571] [ 4016.202686] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 4016.202923] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 4016.203163] ? cpuacct_charge+0x3e/0x120 [ 4016.203375] ? lock_release+0x1d3/0x270 [ 4016.203580] ? lock_acquire+0x179/0x2b0 [ 4016.203786] ? cpuacct_account_field+0x23/0xf0 [ 4016.204025] ? update_process_times+0x5f/0x90 [ 4016.204256] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 4016.204536] ? tick_sched_handle+0x33/0x50 [ 4016.204754] ? tick_nohz_highres_handler+0x71/0x90 [ 4016.205008] ? __hrtimer_run_queues+0x86/0x390 [ 4016.205251] ? hrtimer_interrupt+0x100/0x240 [ 4016.205478] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 4016.205754] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 4016.206017] [ 4016.206132] [ 4016.206249] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 4016.206531] ? queued_spin_lock_slowpath+0x36/0x310 [ 4016.206792] do_raw_spin_lock+0x9b/0xa0 [ 4016.206999] __mutex_lock+0x205/0x7a0 [ 4016.207195] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4016.207458] ? up_read+0x1b/0x30 [ 4016.207635] ? tc_setup_cb_destroy+0x116/0x180 [ 4016.207874] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4016.208135] refcount_dec_and_mutex_lock+0x35/0x80 [ 4016.208389] __tcf_action_put+0x1e/0x70 [ 4016.208597] tcf_action_destroy+0x31/0x80 [ 4016.208812] tcf_exts_destroy+0x20/0x40 [ 4016.209018] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 4016.209296] __fl_delete+0x12d/0x180 [cls_flower] [ 4016.209549] fl_destroy+0xbd/0x140 [cls_flower] [ 4016.209796] tcf_proto_destroy+0x1f/0xc0 [ 4016.210007] tcf_chain_flush+0xab/0x170 [ 4016.210210] __tcf_block_put+0xd2/0x190 [ 4016.210417] clsact_destroy+0xb6/0x380 [sch_ingress] [ 4016.210682] __qdisc_destroy+0x51/0x150 [ 4016.210890] dev_shutdown+0x78/0x190 [ 4016.211089] unregister_netdevice_many_notify+0x226/0x7e0 [ 4016.211372] cleanup_net+0x268/0x400 [ 4016.211565] ? process_one_work+0x16c/0x4b0 [ 4016.211790] process_one_work+0x1d6/0x4b0 [ 4016.212005] worker_thread+0x1c1/0x3d0 [ 4016.212206] ? __pfx_worker_thread+0x10/0x10 [ 4016.212436] kthread+0xda/0x110 [ 4016.212606] ? __pfx_kthread+0x10/0x10 [ 4016.212806] ret_from_fork+0x31/0x50 [ 4016.213000] ? __pfx_kthread+0x10/0x10 [ 4016.213202] ret_from_fork_asm+0x1b/0x30 [ 4016.213416] [ 4094.215696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 4094.216034] rcu: 2-....: (4082250 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=926909 [ 4094.216544] rcu: (t=4083135 jiffies g=2201 q=2388 ncpus=4) [ 4094.216845] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 4094.217289] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 4094.217877] Workqueue: netns cleanup_net [ 4094.218095] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 4094.218382] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 4094.219327] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 4094.219597] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 4094.219966] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 4094.220331] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 4094.220701] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 4094.221068] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 4094.221434] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 4094.221849] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4094.222149] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 4094.222516] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4094.222883] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 4094.223245] PKRU: 55555554 [ 4094.223392] Call Trace: [ 4094.223528] [ 4094.223650] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 4094.223887] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 4094.224126] ? cpuacct_charge+0x3e/0x120 [ 4094.224337] ? lock_release+0x1d3/0x270 [ 4094.224541] ? lock_acquire+0x179/0x2b0 [ 4094.224746] ? cpuacct_account_field+0x23/0xf0 [ 4094.224983] ? update_process_times+0x5f/0x90 [ 4094.225212] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 4094.225490] ? tick_sched_handle+0x33/0x50 [ 4094.225706] ? tick_nohz_highres_handler+0x71/0x90 [ 4094.225960] ? __hrtimer_run_queues+0x86/0x390 [ 4094.226196] ? hrtimer_interrupt+0x100/0x240 [ 4094.226423] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 4094.226695] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 4094.226956] [ 4094.227072] [ 4094.227188] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 4094.227468] ? queued_spin_lock_slowpath+0x36/0x310 [ 4094.227727] do_raw_spin_lock+0x9b/0xa0 [ 4094.227933] __mutex_lock+0x205/0x7a0 [ 4094.228128] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4094.228390] ? up_read+0x1b/0x30 [ 4094.228565] ? tc_setup_cb_destroy+0x116/0x180 [ 4094.228804] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4094.229064] refcount_dec_and_mutex_lock+0x35/0x80 [ 4094.229315] __tcf_action_put+0x1e/0x70 [ 4094.229525] tcf_action_destroy+0x31/0x80 [ 4094.229739] tcf_exts_destroy+0x20/0x40 [ 4094.229943] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 4094.230221] __fl_delete+0x12d/0x180 [cls_flower] [ 4094.230473] fl_destroy+0xbd/0x140 [cls_flower] [ 4094.230720] tcf_proto_destroy+0x1f/0xc0 [ 4094.230929] tcf_chain_flush+0xab/0x170 [ 4094.231134] __tcf_block_put+0xd2/0x190 [ 4094.231341] clsact_destroy+0xb6/0x380 [sch_ingress] [ 4094.231603] __qdisc_destroy+0x51/0x150 [ 4094.231810] dev_shutdown+0x78/0x190 [ 4094.232002] unregister_netdevice_many_notify+0x226/0x7e0 [ 4094.232284] cleanup_net+0x268/0x400 [ 4094.232476] ? process_one_work+0x16c/0x4b0 [ 4094.232700] process_one_work+0x1d6/0x4b0 [ 4094.232913] worker_thread+0x1c1/0x3d0 [ 4094.233112] ? __pfx_worker_thread+0x10/0x10 [ 4094.233341] kthread+0xda/0x110 [ 4094.233510] ? __pfx_kthread+0x10/0x10 [ 4094.233710] ret_from_fork+0x31/0x50 [ 4094.233904] ? __pfx_kthread+0x10/0x10 [ 4094.234103] ret_from_fork_asm+0x1b/0x30 [ 4094.234314] [ 4172.237696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 4172.238035] rcu: 2-....: (4160255 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=944490 [ 4172.238547] rcu: (t=4161157 jiffies g=2201 q=2388 ncpus=4) [ 4172.238845] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 4172.239292] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 4172.239884] Workqueue: netns cleanup_net [ 4172.240097] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 4172.240393] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 4172.241347] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 4172.241620] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 4172.241993] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 4172.242365] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 4172.242738] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 4172.243108] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 4172.243480] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 4172.243901] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4172.244199] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 4172.244572] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4172.244942] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 4172.245312] PKRU: 55555554 [ 4172.245458] Call Trace: [ 4172.245593] [ 4172.245709] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 4172.245946] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 4172.246187] ? cpuacct_charge+0x3e/0x120 [ 4172.246398] ? lock_release+0x1d3/0x270 [ 4172.246603] ? lock_acquire+0x179/0x2b0 [ 4172.246809] ? cpuacct_account_field+0x23/0xf0 [ 4172.247047] ? update_process_times+0x5f/0x90 [ 4172.247279] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 4172.247559] ? tick_sched_handle+0x33/0x50 [ 4172.247777] ? tick_nohz_highres_handler+0x71/0x90 [ 4172.248030] ? __hrtimer_run_queues+0x86/0x390 [ 4172.248268] ? hrtimer_interrupt+0x100/0x240 [ 4172.248496] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 4172.248771] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 4172.249036] [ 4172.249152] [ 4172.249269] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 4172.249550] ? queued_spin_lock_slowpath+0x36/0x310 [ 4172.249810] do_raw_spin_lock+0x9b/0xa0 [ 4172.250016] __mutex_lock+0x205/0x7a0 [ 4172.250218] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4172.250482] ? up_read+0x1b/0x30 [ 4172.250659] ? tc_setup_cb_destroy+0x116/0x180 [ 4172.250898] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4172.251158] refcount_dec_and_mutex_lock+0x35/0x80 [ 4172.251411] __tcf_action_put+0x1e/0x70 [ 4172.251618] tcf_action_destroy+0x31/0x80 [ 4172.251833] tcf_exts_destroy+0x20/0x40 [ 4172.252038] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 4172.252317] __fl_delete+0x12d/0x180 [cls_flower] [ 4172.252569] fl_destroy+0xbd/0x140 [cls_flower] [ 4172.252815] tcf_proto_destroy+0x1f/0xc0 [ 4172.253024] tcf_chain_flush+0xab/0x170 [ 4172.253229] __tcf_block_put+0xd2/0x190 [ 4172.253435] clsact_destroy+0xb6/0x380 [sch_ingress] [ 4172.253701] __qdisc_destroy+0x51/0x150 [ 4172.253910] dev_shutdown+0x78/0x190 [ 4172.254103] unregister_netdevice_many_notify+0x226/0x7e0 [ 4172.254387] cleanup_net+0x268/0x400 [ 4172.254580] ? process_one_work+0x16c/0x4b0 [ 4172.254805] process_one_work+0x1d6/0x4b0 [ 4172.255018] worker_thread+0x1c1/0x3d0 [ 4172.255219] ? __pfx_worker_thread+0x10/0x10 [ 4172.255448] kthread+0xda/0x110 [ 4172.255619] ? __pfx_kthread+0x10/0x10 [ 4172.255822] ret_from_fork+0x31/0x50 [ 4172.256016] ? __pfx_kthread+0x10/0x10 [ 4172.256215] ret_from_fork_asm+0x1b/0x30 [ 4172.256429] [ 4250.259696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 4250.260050] rcu: 2-....: (4238260 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=961317 [ 4250.260562] rcu: (t=4239179 jiffies g=2201 q=2389 ncpus=4) [ 4250.260854] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 4250.261298] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 4250.261886] Workqueue: netns cleanup_net [ 4250.262101] RIP: 0010:queued_spin_lock_slowpath+0x1c/0x310 [ 4250.262390] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 41 55 41 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 <85> c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc [ 4250.263335] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 4250.263610] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 4250.263978] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 4250.264346] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 4250.264714] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 4250.265083] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 4250.265450] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 4250.265869] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4250.266169] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 4250.266536] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4250.266906] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 4250.267274] PKRU: 55555554 [ 4250.267420] Call Trace: [ 4250.267553] [ 4250.267669] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 4250.267908] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 4250.268148] ? cpuacct_charge+0x3e/0x120 [ 4250.268358] ? lock_release+0x1d3/0x270 [ 4250.268562] ? lock_acquire+0x179/0x2b0 [ 4250.268769] ? cpuacct_account_field+0x23/0xf0 [ 4250.269006] ? update_process_times+0x5f/0x90 [ 4250.269239] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 4250.269517] ? tick_sched_handle+0x33/0x50 [ 4250.269737] ? tick_nohz_highres_handler+0x71/0x90 [ 4250.269989] ? __hrtimer_run_queues+0x86/0x390 [ 4250.270227] ? hrtimer_interrupt+0x100/0x240 [ 4250.270453] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 4250.270730] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 4250.270990] [ 4250.271107] [ 4250.271223] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 4250.271506] ? queued_spin_lock_slowpath+0x1c/0x310 [ 4250.271765] do_raw_spin_lock+0x9b/0xa0 [ 4250.271969] __mutex_lock+0x205/0x7a0 [ 4250.272165] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4250.272427] ? up_read+0x1b/0x30 [ 4250.272603] ? tc_setup_cb_destroy+0x116/0x180 [ 4250.272841] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4250.273102] refcount_dec_and_mutex_lock+0x35/0x80 [ 4250.273353] __tcf_action_put+0x1e/0x70 [ 4250.273571] tcf_action_destroy+0x31/0x80 [ 4250.273784] tcf_exts_destroy+0x20/0x40 [ 4250.273988] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 4250.274267] __fl_delete+0x12d/0x180 [cls_flower] [ 4250.274517] fl_destroy+0xbd/0x140 [cls_flower] [ 4250.274761] tcf_proto_destroy+0x1f/0xc0 [ 4250.274969] tcf_chain_flush+0xab/0x170 [ 4250.275173] __tcf_block_put+0xd2/0x190 [ 4250.275378] clsact_destroy+0xb6/0x380 [sch_ingress] [ 4250.275642] __qdisc_destroy+0x51/0x150 [ 4250.275848] dev_shutdown+0x78/0x190 [ 4250.276040] unregister_netdevice_many_notify+0x226/0x7e0 [ 4250.276323] cleanup_net+0x268/0x400 [ 4250.276515] ? process_one_work+0x16c/0x4b0 [ 4250.276739] process_one_work+0x1d6/0x4b0 [ 4250.276952] worker_thread+0x1c1/0x3d0 [ 4250.277152] ? __pfx_worker_thread+0x10/0x10 [ 4250.277379] kthread+0xda/0x110 [ 4250.277549] ? __pfx_kthread+0x10/0x10 [ 4250.277749] ret_from_fork+0x31/0x50 [ 4250.277942] ? __pfx_kthread+0x10/0x10 [ 4250.278141] ret_from_fork_asm+0x1b/0x30 [ 4250.278351] [ 4328.280696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 4328.281026] rcu: 2-....: (4316264 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=978379 [ 4328.281535] rcu: (t=4317200 jiffies g=2201 q=2389 ncpus=4) [ 4328.281826] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 4328.282270] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 4328.282857] Workqueue: netns cleanup_net [ 4328.283070] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 4328.283356] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 4328.284308] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 4328.284581] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 4328.284949] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 4328.285314] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 4328.285682] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 4328.286051] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 4328.286420] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 4328.286835] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4328.287136] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 4328.287505] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4328.287872] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 4328.288240] PKRU: 55555554 [ 4328.288386] Call Trace: [ 4328.288520] [ 4328.288632] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 4328.288868] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 4328.289110] ? cpuacct_charge+0x3e/0x120 [ 4328.289318] ? lock_release+0x1d3/0x270 [ 4328.289526] ? lock_acquire+0x179/0x2b0 [ 4328.289731] ? cpuacct_account_field+0x23/0xf0 [ 4328.289965] ? update_process_times+0x5f/0x90 [ 4328.290197] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 4328.290473] ? tick_sched_handle+0x33/0x50 [ 4328.290690] ? tick_nohz_highres_handler+0x71/0x90 [ 4328.290943] ? __hrtimer_run_queues+0x86/0x390 [ 4328.291180] ? hrtimer_interrupt+0x100/0x240 [ 4328.291408] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 4328.291681] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 4328.291943] [ 4328.292059] [ 4328.292176] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 4328.292455] ? queued_spin_lock_slowpath+0x36/0x310 [ 4328.292714] do_raw_spin_lock+0x9b/0xa0 [ 4328.292918] __mutex_lock+0x205/0x7a0 [ 4328.293113] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4328.293374] ? up_read+0x1b/0x30 [ 4328.293550] ? tc_setup_cb_destroy+0x116/0x180 [ 4328.293791] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4328.294051] refcount_dec_and_mutex_lock+0x35/0x80 [ 4328.294303] __tcf_action_put+0x1e/0x70 [ 4328.294509] tcf_action_destroy+0x31/0x80 [ 4328.294722] tcf_exts_destroy+0x20/0x40 [ 4328.294927] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 4328.295208] __fl_delete+0x12d/0x180 [cls_flower] [ 4328.295459] fl_destroy+0xbd/0x140 [cls_flower] [ 4328.295701] tcf_proto_destroy+0x1f/0xc0 [ 4328.295912] tcf_chain_flush+0xab/0x170 [ 4328.296115] __tcf_block_put+0xd2/0x190 [ 4328.296319] clsact_destroy+0xb6/0x380 [sch_ingress] [ 4328.296583] __qdisc_destroy+0x51/0x150 [ 4328.296789] dev_shutdown+0x78/0x190 [ 4328.296981] unregister_netdevice_many_notify+0x226/0x7e0 [ 4328.297264] cleanup_net+0x268/0x400 [ 4328.297455] ? process_one_work+0x16c/0x4b0 [ 4328.297675] process_one_work+0x1d6/0x4b0 [ 4328.297889] worker_thread+0x1c1/0x3d0 [ 4328.298089] ? __pfx_worker_thread+0x10/0x10 [ 4328.298316] kthread+0xda/0x110 [ 4328.298489] ? __pfx_kthread+0x10/0x10 [ 4328.298687] ret_from_fork+0x31/0x50 [ 4328.298881] ? __pfx_kthread+0x10/0x10 [ 4328.299080] ret_from_fork_asm+0x1b/0x30 [ 4328.299292] [ 4406.302696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 4406.303026] rcu: 2-....: (4394269 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=995615 [ 4406.303535] rcu: (t=4395222 jiffies g=2201 q=2389 ncpus=4) [ 4406.303828] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 4406.304269] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 4406.304855] Workqueue: netns cleanup_net [ 4406.305069] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 4406.305355] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 4406.306302] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 4406.306574] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 4406.306942] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 4406.307307] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 4406.307671] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 4406.308037] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 4406.308404] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 4406.308819] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4406.309124] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 4406.309491] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4406.309858] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 4406.310221] PKRU: 55555554 [ 4406.310369] Call Trace: [ 4406.310502] [ 4406.310616] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 4406.310850] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 4406.311090] ? cpuacct_charge+0x3e/0x120 [ 4406.311299] ? lock_release+0x1d3/0x270 [ 4406.311505] ? lock_acquire+0x179/0x2b0 [ 4406.311710] ? cpuacct_account_field+0x23/0xf0 [ 4406.311943] ? update_process_times+0x5f/0x90 [ 4406.312176] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 4406.312453] ? tick_sched_handle+0x33/0x50 [ 4406.312671] ? tick_nohz_highres_handler+0x71/0x90 [ 4406.312923] ? __hrtimer_run_queues+0x86/0x390 [ 4406.313158] ? hrtimer_interrupt+0x100/0x240 [ 4406.313387] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 4406.313660] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 4406.313921] [ 4406.314039] [ 4406.314156] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 4406.314438] ? queued_spin_lock_slowpath+0x36/0x310 [ 4406.314694] do_raw_spin_lock+0x9b/0xa0 [ 4406.314899] __mutex_lock+0x205/0x7a0 [ 4406.315096] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4406.315359] ? up_read+0x1b/0x30 [ 4406.315534] ? tc_setup_cb_destroy+0x116/0x180 [ 4406.315773] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4406.316034] refcount_dec_and_mutex_lock+0x35/0x80 [ 4406.316286] __tcf_action_put+0x1e/0x70 [ 4406.316500] tcf_action_destroy+0x31/0x80 [ 4406.316715] tcf_exts_destroy+0x20/0x40 [ 4406.316922] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 4406.317198] __fl_delete+0x12d/0x180 [cls_flower] [ 4406.317449] fl_destroy+0xbd/0x140 [cls_flower] [ 4406.317692] tcf_proto_destroy+0x1f/0xc0 [ 4406.317903] tcf_chain_flush+0xab/0x170 [ 4406.318105] __tcf_block_put+0xd2/0x190 [ 4406.318309] clsact_destroy+0xb6/0x380 [sch_ingress] [ 4406.318572] __qdisc_destroy+0x51/0x150 [ 4406.318778] dev_shutdown+0x78/0x190 [ 4406.318974] unregister_netdevice_many_notify+0x226/0x7e0 [ 4406.319258] cleanup_net+0x268/0x400 [ 4406.319450] ? process_one_work+0x16c/0x4b0 [ 4406.319670] process_one_work+0x1d6/0x4b0 [ 4406.319885] worker_thread+0x1c1/0x3d0 [ 4406.320085] ? __pfx_worker_thread+0x10/0x10 [ 4406.320310] kthread+0xda/0x110 [ 4406.320481] ? __pfx_kthread+0x10/0x10 [ 4406.320679] ret_from_fork+0x31/0x50 [ 4406.320872] ? __pfx_kthread+0x10/0x10 [ 4406.321071] ret_from_fork_asm+0x1b/0x30 [ 4406.321282] [ 4484.324705] rcu: INFO: rcu_preempt self-detected stall on CPU [ 4484.325052] rcu: 2-....: (4472274 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=1011746 [ 4484.325567] rcu: (t=4473244 jiffies g=2201 q=2389 ncpus=4) [ 4484.325862] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 4484.326307] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 4484.326900] Workqueue: netns cleanup_net [ 4484.327123] RIP: 0010:queued_spin_lock_slowpath+0x1c/0x310 [ 4484.327413] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 41 55 41 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 <85> c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc [ 4484.328368] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 4484.328647] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 4484.329019] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 4484.329390] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 4484.329760] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 4484.330131] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 4484.330504] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 4484.330922] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4484.331224] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 4484.331595] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4484.331967] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 4484.332337] PKRU: 55555554 [ 4484.332484] Call Trace: [ 4484.332622] [ 4484.332742] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 4484.332979] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 4484.333219] ? cpuacct_charge+0x3e/0x120 [ 4484.333430] ? lock_release+0x1d3/0x270 [ 4484.333636] ? lock_acquire+0x179/0x2b0 [ 4484.333844] ? cpuacct_account_field+0x23/0xf0 [ 4484.334081] ? update_process_times+0x5f/0x90 [ 4484.334312] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 4484.334592] ? tick_sched_handle+0x33/0x50 [ 4484.334808] ? tick_nohz_highres_handler+0x71/0x90 [ 4484.335060] ? __hrtimer_run_queues+0x86/0x390 [ 4484.335299] ? hrtimer_interrupt+0x100/0x240 [ 4484.335525] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 4484.335801] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 4484.336063] [ 4484.336179] [ 4484.336294] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 4484.336576] ? queued_spin_lock_slowpath+0x1c/0x310 [ 4484.336835] do_raw_spin_lock+0x9b/0xa0 [ 4484.337041] __mutex_lock+0x205/0x7a0 [ 4484.337237] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4484.337499] ? up_read+0x1b/0x30 [ 4484.337677] ? tc_setup_cb_destroy+0x116/0x180 [ 4484.337914] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4484.338177] refcount_dec_and_mutex_lock+0x35/0x80 [ 4484.338427] __tcf_action_put+0x1e/0x70 [ 4484.338639] tcf_action_destroy+0x31/0x80 [ 4484.338853] tcf_exts_destroy+0x20/0x40 [ 4484.339058] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 4484.339337] __fl_delete+0x12d/0x180 [cls_flower] [ 4484.339590] fl_destroy+0xbd/0x140 [cls_flower] [ 4484.339836] tcf_proto_destroy+0x1f/0xc0 [ 4484.340046] tcf_chain_flush+0xab/0x170 [ 4484.340249] __tcf_block_put+0xd2/0x190 [ 4484.340456] clsact_destroy+0xb6/0x380 [sch_ingress] [ 4484.340722] __qdisc_destroy+0x51/0x150 [ 4484.340929] dev_shutdown+0x78/0x190 [ 4484.341122] unregister_netdevice_many_notify+0x226/0x7e0 [ 4484.341405] cleanup_net+0x268/0x400 [ 4484.341598] ? process_one_work+0x16c/0x4b0 [ 4484.341823] process_one_work+0x1d6/0x4b0 [ 4484.342038] worker_thread+0x1c1/0x3d0 [ 4484.342239] ? __pfx_worker_thread+0x10/0x10 [ 4484.342468] kthread+0xda/0x110 [ 4484.342637] ? __pfx_kthread+0x10/0x10 [ 4484.342838] ret_from_fork+0x31/0x50 [ 4484.343032] ? __pfx_kthread+0x10/0x10 [ 4484.343232] ret_from_fork_asm+0x1b/0x30 [ 4484.343445] [ 4562.346695] rcu: INFO: rcu_preempt self-detected stall on CPU [ 4562.347032] rcu: 2-....: (4550279 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=1027592 [ 4562.347547] rcu: (t=4551266 jiffies g=2201 q=2389 ncpus=4) [ 4562.347843] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 4562.348293] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 4562.348883] Workqueue: netns cleanup_net [ 4562.349097] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 4562.349391] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 4562.350344] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 4562.350618] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 4562.350990] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 4562.351360] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 4562.351730] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 4562.352105] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 4562.352480] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 4562.352900] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4562.353202] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 4562.353575] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4562.353946] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 4562.354313] PKRU: 55555554 [ 4562.354461] Call Trace: [ 4562.354596] [ 4562.354711] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 4562.354946] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 4562.355188] ? cpuacct_charge+0x3e/0x120 [ 4562.355396] ? lock_release+0x1d3/0x270 [ 4562.355603] ? lock_acquire+0x179/0x2b0 [ 4562.355811] ? cpuacct_account_field+0x23/0xf0 [ 4562.356046] ? update_process_times+0x5f/0x90 [ 4562.356279] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 4562.356555] ? tick_sched_handle+0x33/0x50 [ 4562.356775] ? tick_nohz_highres_handler+0x71/0x90 [ 4562.357027] ? __hrtimer_run_queues+0x86/0x390 [ 4562.357264] ? hrtimer_interrupt+0x100/0x240 [ 4562.357493] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 4562.357768] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 4562.358030] [ 4562.358147] [ 4562.358270] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 4562.358549] ? queued_spin_lock_slowpath+0x36/0x310 [ 4562.358810] do_raw_spin_lock+0x9b/0xa0 [ 4562.359015] __mutex_lock+0x205/0x7a0 [ 4562.359215] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4562.359477] ? up_read+0x1b/0x30 [ 4562.359653] ? tc_setup_cb_destroy+0x116/0x180 [ 4562.359894] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4562.360156] refcount_dec_and_mutex_lock+0x35/0x80 [ 4562.360408] __tcf_action_put+0x1e/0x70 [ 4562.360615] tcf_action_destroy+0x31/0x80 [ 4562.360830] tcf_exts_destroy+0x20/0x40 [ 4562.361037] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 4562.361315] __fl_delete+0x12d/0x180 [cls_flower] [ 4562.361568] fl_destroy+0xbd/0x140 [cls_flower] [ 4562.361817] tcf_proto_destroy+0x1f/0xc0 [ 4562.362028] tcf_chain_flush+0xab/0x170 [ 4562.362232] __tcf_block_put+0xd2/0x190 [ 4562.362438] clsact_destroy+0xb6/0x380 [sch_ingress] [ 4562.362703] __qdisc_destroy+0x51/0x150 [ 4562.362909] dev_shutdown+0x78/0x190 [ 4562.363103] unregister_netdevice_many_notify+0x226/0x7e0 [ 4562.363390] cleanup_net+0x268/0x400 [ 4562.363583] ? process_one_work+0x16c/0x4b0 [ 4562.363809] process_one_work+0x1d6/0x4b0 [ 4562.364023] worker_thread+0x1c1/0x3d0 [ 4562.364225] ? __pfx_worker_thread+0x10/0x10 [ 4562.364452] kthread+0xda/0x110 [ 4562.364624] ? __pfx_kthread+0x10/0x10 [ 4562.364825] ret_from_fork+0x31/0x50 [ 4562.365020] ? __pfx_kthread+0x10/0x10 [ 4562.365220] ret_from_fork_asm+0x1b/0x30 [ 4562.365432] [ 4640.368696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 4640.369029] rcu: 2-....: (4628284 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=1044233 [ 4640.369545] rcu: (t=4629288 jiffies g=2201 q=2389 ncpus=4) [ 4640.369843] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 4640.370289] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 4640.370881] Workqueue: netns cleanup_net [ 4640.371095] RIP: 0010:queued_spin_lock_slowpath+0x19/0x310 [ 4640.371386] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 41 55 41 54 55 48 89 fd 53 66 90 ba 01 00 00 00 <8b> 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d [ 4640.372326] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 4640.372598] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 4640.372964] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 4640.373330] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 4640.373695] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 4640.374064] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 4640.374431] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 4640.374847] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4640.375144] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 4640.375508] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4640.375876] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 4640.376241] PKRU: 55555554 [ 4640.376385] Call Trace: [ 4640.376520] [ 4640.376642] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 4640.376879] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 4640.377119] ? cpuacct_charge+0x3e/0x120 [ 4640.377328] ? lock_release+0x1d3/0x270 [ 4640.377532] ? lock_acquire+0x179/0x2b0 [ 4640.377741] ? cpuacct_account_field+0x23/0xf0 [ 4640.377982] ? update_process_times+0x5f/0x90 [ 4640.378214] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 4640.378489] ? tick_sched_handle+0x33/0x50 [ 4640.378706] ? tick_nohz_highres_handler+0x71/0x90 [ 4640.378957] ? __hrtimer_run_queues+0x86/0x390 [ 4640.379192] ? hrtimer_interrupt+0x100/0x240 [ 4640.379420] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 4640.379692] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 4640.379953] [ 4640.380070] [ 4640.380187] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 4640.380465] ? queued_spin_lock_slowpath+0x19/0x310 [ 4640.380724] do_raw_spin_lock+0x9b/0xa0 [ 4640.380927] __mutex_lock+0x205/0x7a0 [ 4640.381122] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4640.381385] ? up_read+0x1b/0x30 [ 4640.381560] ? tc_setup_cb_destroy+0x116/0x180 [ 4640.381800] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4640.382060] refcount_dec_and_mutex_lock+0x35/0x80 [ 4640.382310] __tcf_action_put+0x1e/0x70 [ 4640.382519] tcf_action_destroy+0x31/0x80 [ 4640.382733] tcf_exts_destroy+0x20/0x40 [ 4640.382938] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 4640.383216] __fl_delete+0x12d/0x180 [cls_flower] [ 4640.383467] fl_destroy+0xbd/0x140 [cls_flower] [ 4640.383711] tcf_proto_destroy+0x1f/0xc0 [ 4640.383920] tcf_chain_flush+0xab/0x170 [ 4640.384123] __tcf_block_put+0xd2/0x190 [ 4640.384327] clsact_destroy+0xb6/0x380 [sch_ingress] [ 4640.384589] __qdisc_destroy+0x51/0x150 [ 4640.384798] dev_shutdown+0x78/0x190 [ 4640.384989] unregister_netdevice_many_notify+0x226/0x7e0 [ 4640.385273] cleanup_net+0x268/0x400 [ 4640.385466] ? process_one_work+0x16c/0x4b0 [ 4640.385687] process_one_work+0x1d6/0x4b0 [ 4640.385900] worker_thread+0x1c1/0x3d0 [ 4640.386101] ? __pfx_worker_thread+0x10/0x10 [ 4640.386327] kthread+0xda/0x110 [ 4640.386498] ? __pfx_kthread+0x10/0x10 [ 4640.386696] ret_from_fork+0x31/0x50 [ 4640.386889] ? __pfx_kthread+0x10/0x10 [ 4640.387086] ret_from_fork_asm+0x1b/0x30 [ 4640.387298] [ 4718.390696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 4718.391030] rcu: 2-....: (4706289 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=1060135 [ 4718.391542] rcu: (t=4707310 jiffies g=2201 q=2389 ncpus=4) [ 4718.391837] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 4718.392280] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 4718.392868] Workqueue: netns cleanup_net [ 4718.393083] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 4718.393371] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 4718.394314] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 4718.394585] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 4718.394953] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 4718.395320] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 4718.395686] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 4718.396054] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 4718.396421] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 4718.396840] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4718.397137] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 4718.397524] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4718.397889] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 4718.398255] PKRU: 55555554 [ 4718.398398] Call Trace: [ 4718.398531] [ 4718.398645] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 4718.398881] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 4718.399119] ? cpuacct_charge+0x3e/0x120 [ 4718.399332] ? lock_release+0x1d3/0x270 [ 4718.399537] ? lock_acquire+0x179/0x2b0 [ 4718.399742] ? cpuacct_account_field+0x23/0xf0 [ 4718.399978] ? update_process_times+0x5f/0x90 [ 4718.400207] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 4718.400487] ? tick_sched_handle+0x33/0x50 [ 4718.400702] ? tick_nohz_highres_handler+0x71/0x90 [ 4718.400954] ? __hrtimer_run_queues+0x86/0x390 [ 4718.401191] ? hrtimer_interrupt+0x100/0x240 [ 4718.401416] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 4718.401688] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 4718.401953] [ 4718.402068] [ 4718.402185] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 4718.402465] ? queued_spin_lock_slowpath+0x36/0x310 [ 4718.402723] do_raw_spin_lock+0x9b/0xa0 [ 4718.402930] __mutex_lock+0x205/0x7a0 [ 4718.403125] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4718.403387] ? up_read+0x1b/0x30 [ 4718.403562] ? tc_setup_cb_destroy+0x116/0x180 [ 4718.403801] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4718.404061] refcount_dec_and_mutex_lock+0x35/0x80 [ 4718.404312] __tcf_action_put+0x1e/0x70 [ 4718.404519] tcf_action_destroy+0x31/0x80 [ 4718.404733] tcf_exts_destroy+0x20/0x40 [ 4718.404936] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 4718.405213] __fl_delete+0x12d/0x180 [cls_flower] [ 4718.405464] fl_destroy+0xbd/0x140 [cls_flower] [ 4718.405708] tcf_proto_destroy+0x1f/0xc0 [ 4718.405916] tcf_chain_flush+0xab/0x170 [ 4718.406119] __tcf_block_put+0xd2/0x190 [ 4718.406324] clsact_destroy+0xb6/0x380 [sch_ingress] [ 4718.406586] __qdisc_destroy+0x51/0x150 [ 4718.406793] dev_shutdown+0x78/0x190 [ 4718.406986] unregister_netdevice_many_notify+0x226/0x7e0 [ 4718.407267] cleanup_net+0x268/0x400 [ 4718.407464] ? process_one_work+0x16c/0x4b0 [ 4718.407686] process_one_work+0x1d6/0x4b0 [ 4718.407897] worker_thread+0x1c1/0x3d0 [ 4718.408096] ? __pfx_worker_thread+0x10/0x10 [ 4718.408324] kthread+0xda/0x110 [ 4718.408492] ? __pfx_kthread+0x10/0x10 [ 4718.408690] ret_from_fork+0x31/0x50 [ 4718.408883] ? __pfx_kthread+0x10/0x10 [ 4718.409082] ret_from_fork_asm+0x1b/0x30 [ 4718.409294] [ 4796.412696] rcu: INFO: rcu_preempt self-detected stall on CPU [ 4796.413041] rcu: 2-....: (4784294 ticks this GP) idle=201c/1/0x4000000000000000 softirq=1797/1797 fqs=1077425 [ 4796.413555] rcu: (t=4785332 jiffies g=2201 q=2390 ncpus=4) [ 4796.413846] CPU: 2 PID: 10 Comm: kworker/u8:0 Tainted: G W 6.8.0-rc2-virtme #1 [ 4796.414289] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 4796.414878] Workqueue: netns cleanup_net [ 4796.415091] RIP: 0010:queued_spin_lock_slowpath+0x36/0x310 [ 4796.415382] Code: 54 55 48 89 fd 53 66 90 ba 01 00 00 00 8b 45 00 85 c0 75 14 f0 0f b1 55 00 85 c0 75 f0 5b 5d 41 5c 41 5d c3 cc cc cc cc f3 90 e1 81 fe 00 01 00 00 74 52 40 30 f6 85 f6 75 75 f0 0f ba 6d 00 [ 4796.416337] RSP: 0018:ffffb706c005ba78 EFLAGS: 00000206 [ 4796.416614] RAX: 000000000246e930 RBX: ffff965004ccfe08 RCX: 0000000000000000 [ 4796.416982] RDX: 0000000000000001 RSI: 000000000246e930 RDI: ffff965004ccfe08 [ 4796.417356] RBP: ffff965004ccfe08 R08: 0000000000000001 R09: 0000000000000000 [ 4796.417727] R10: 0000000000000000 R11: ffffffff9ed4ae78 R12: ffff965004ccfe00 [ 4796.418096] R13: 0000000000000000 R14: ffff965004ccfe08 R15: ffff965004ccfe68 [ 4796.418465] FS: 0000000000000000(0000) GS:ffff96503ed00000(0000) knlGS:0000000000000000 [ 4796.418884] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4796.419184] CR2: 00007f358f942270 CR3: 0000000012260003 CR4: 0000000000770ef0 [ 4796.419552] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4796.419923] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 4796.420296] PKRU: 55555554 [ 4796.420441] Call Trace: [ 4796.420575] [ 4796.420690] ? rcu_dump_cpu_stacks+0xfa/0x180 [ 4796.420927] ? rcu_sched_clock_irq+0x7bb/0x13d0 [ 4796.421169] ? cpuacct_charge+0x3e/0x120 [ 4796.421380] ? lock_release+0x1d3/0x270 [ 4796.421585] ? lock_acquire+0x179/0x2b0 [ 4796.421790] ? cpuacct_account_field+0x23/0xf0 [ 4796.422026] ? update_process_times+0x5f/0x90 [ 4796.422258] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 4796.422537] ? tick_sched_handle+0x33/0x50 [ 4796.422754] ? tick_nohz_highres_handler+0x71/0x90 [ 4796.423007] ? __hrtimer_run_queues+0x86/0x390 [ 4796.423244] ? hrtimer_interrupt+0x100/0x240 [ 4796.423471] ? __sysvec_apic_timer_interrupt+0x66/0x1a0 [ 4796.423749] ? sysvec_apic_timer_interrupt+0x73/0x90 [ 4796.424010] [ 4796.424129] [ 4796.424245] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 4796.424526] ? queued_spin_lock_slowpath+0x36/0x310 [ 4796.424786] do_raw_spin_lock+0x9b/0xa0 [ 4796.424990] __mutex_lock+0x205/0x7a0 [ 4796.425186] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4796.425450] ? up_read+0x1b/0x30 [ 4796.425626] ? tc_setup_cb_destroy+0x116/0x180 [ 4796.425867] ? refcount_dec_and_mutex_lock+0x35/0x80 [ 4796.426128] refcount_dec_and_mutex_lock+0x35/0x80 [ 4796.426380] __tcf_action_put+0x1e/0x70 [ 4796.426588] tcf_action_destroy+0x31/0x80 [ 4796.426803] tcf_exts_destroy+0x20/0x40 [ 4796.427007] __fl_destroy_filter+0x1e/0x80 [cls_flower] [ 4796.427290] __fl_delete+0x12d/0x180 [cls_flower] [ 4796.427541] fl_destroy+0xbd/0x140 [cls_flower] [ 4796.427787] tcf_proto_destroy+0x1f/0xc0 [ 4796.427996] tcf_chain_flush+0xab/0x170 [ 4796.428201] __tcf_block_put+0xd2/0x190 [ 4796.428408] clsact_destroy+0xb6/0x380 [sch_ingress] [ 4796.428672] __qdisc_destroy+0x51/0x150 [ 4796.428878] dev_shutdown+0x78/0x190 [ 4796.429071] unregister_netdevice_many_notify+0x226/0x7e0 [ 4796.429355] cleanup_net+0x268/0x400 [ 4796.429548] ? process_one_work+0x16c/0x4b0 [ 4796.429774] process_one_work+0x1d6/0x4b0 [ 4796.429987] worker_thread+0x1c1/0x3d0 [ 4796.430187] ? __pfx_worker_thread+0x10/0x10 [ 4796.430415] kthread+0xda/0x110 [ 4796.430585] ? __pfx_kthread+0x10/0x10 [ 4796.430787] ret_from_fork+0x31/0x50 [ 4796.430981] ? __pfx_kthread+0x10/0x10 [ 4796.431180] ret_from_fork_asm+0x1b/0x30 [ 4796.431391] WAIT TIMEOUT stdout Ctrl-C stdout Ctrl-C stdout ^C WAIT TIMEOUT stdout