[ 684.952464][T10813] Mirror/redirect action on [ 703.950782][ C0] clocksource: Long readout interval, skipping watchdog check: cs_nsec: 3568442957 wd_nsec: 3568441688 [ 747.243472][ C0] clocksource: Long readout interval, skipping watchdog check: cs_nsec: 8517133241 wd_nsec: 8517130337 [ 752.395522][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [ksoftirqd/0:14] [ 752.395533][ C0] Modules linked in: act_skbedit act_ct nf_flow_table nf_tables nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 cls_matchall act_mirred act_gact cls_flower vxlan ip6_udp_tunnel udp_tunnel bridge stp llc 8021q sch_ingress vrf veth [ 752.395571][ C0] irq event stamp: 9369411 [ 752.395573][ C0] hardirqs last enabled at (9369410): [] irqentry_exit+0xf9/0x4d0 [ 752.395584][ C0] hardirqs last disabled at (9369411): [] sysvec_apic_timer_interrupt+0x12/0xe0 [ 752.395588][ C0] softirqs last enabled at (8717258): [] handle_softirqs+0x56f/0x840 [ 752.395593][ C0] softirqs last disabled at (8717263): [] irq_exit_rcu+0xa2/0xf0 [ 752.395601][ C0] CPU: 0 UID: 0 PID: 14 Comm: ksoftirqd/0 Not tainted 6.19.0-rc3-virtme #1 PREEMPT(full) [ 752.395605][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 752.395608][ C0] RIP: 0010:lock_acquire.part.0+0xfa/0x260 [ 752.395613][ C0] Code: ff 65 0f c1 05 87 d6 26 04 83 f8 01 4c 8b 14 24 0f 85 30 01 00 00 9c 58 f6 c4 02 0f 85 4d 01 00 00 4d 85 d2 0f 85 16 01 00 00 <48> 8b 44 24 30 65 48 2b 05 59 90 26 04 0f 85 43 01 00 00 48 83 c4 [ 752.395616][ C0] RSP: 0018:ffa00000000075e0 EFLAGS: 00000206 [ 752.395619][ C0] RAX: 0000000000000046 RBX: 0000000000000000 RCX: 72448a6f3d6b2bdb [ 752.395621][ C0] RDX: 0000000000000003 RSI: ffffffffb799d388 RDI: ffffffffb746ae00 [ 752.395623][ C0] RBP: 0000000000000000 R08: ff11000001adad60 R09: ff11000001adad60 [ 752.395625][ C0] R10: 0000000000000200 R11: 0000000000000001 R12: ffffffffb7f710c0 [ 752.395626][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 [ 752.395629][ C0] FS: 0000000000000000(0000) GS:ff1100007c0d4000(0000) knlGS:0000000000000000 [ 752.395634][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 752.395635][ C0] CR2: 00005593ea4c2120 CR3: 0000000023334003 CR4: 0000000000771ef0 [ 752.395637][ C0] PKRU: 55555554 [ 752.395639][ C0] Call Trace: [ 752.395641][ C0] [ 752.395647][ C0] ? rcu_is_watching+0x15/0xd0 [ 752.395651][ C0] ? unwind_next_frame+0x151/0x1cc0 [ 752.395655][ C0] ? lock_acquire+0x10a/0x150 [ 752.395661][ C0] unwind_next_frame+0x165/0x1cc0 [ 752.395665][ C0] ? unwind_next_frame+0x151/0x1cc0 [ 752.395668][ C0] ? handle_softirqs+0x1d7/0x840 [ 752.395673][ C0] ? __kmalloc_cache_noprof+0x539/0x710 [ 752.395679][ C0] ? stack_access_ok+0x1d0/0x1d0 [ 752.395681][ C0] ? addrconf_rs_timer+0x277/0x730 [ 752.395690][ C0] ? __unwind_start+0x3f6/0x8c0 [ 752.395695][ C0] ? write_profile+0xf0/0xf0 [ 752.395699][ C0] arch_stack_walk+0x9b/0x100 [ 752.395709][ C0] ? handle_softirqs+0x1d7/0x840 [ 752.395716][ C0] stack_trace_save+0x93/0xc0 [ 752.395719][ C0] ? filter_irq_stacks+0xd0/0xd0 [ 752.395728][ C0] set_track_prepare+0x46/0x80 [ 752.395732][ C0] ? __kmalloc_cache_noprof+0x539/0x710 [ 752.395735][ C0] ? dst_cow_metrics_generic+0x4c/0x170 [ 752.395739][ C0] ? icmp6_dst_alloc+0x3bc/0x4b0 [ 752.395742][ C0] ? ndisc_send_skb+0xe8e/0x14d0 [ 752.395745][ C0] ? addrconf_rs_timer+0x277/0x730 [ 752.395748][ C0] ? call_timer_fn+0x164/0x300 [ 752.395751][ C0] ? __run_timers+0x600/0x930 [ 752.395753][ C0] ? run_timer_softirq+0xf3/0x170 [ 752.395756][ C0] ? handle_softirqs+0x1d7/0x840 [ 752.395763][ C0] __alloc_object+0xe8/0x250 [ 752.395766][ C0] ? dst_cow_metrics_generic+0x4c/0x170 [ 752.395768][ C0] ? __slab_alloc.isra.0+0x76/0x120 [ 752.395771][ C0] __create_object+0x26/0xc0 [ 752.395778][ C0] __kmalloc_cache_noprof+0x539/0x710 [ 752.395783][ C0] ? dst_init+0x277/0x4f0 [ 752.395787][ C0] ? dst_cow_metrics_generic+0x4c/0x170 [ 752.395790][ C0] dst_cow_metrics_generic+0x4c/0x170 [ 752.395795][ C0] icmp6_dst_alloc+0x3bc/0x4b0 [ 752.395798][ C0] ? icmpv6_flow_init+0x34/0x210 [ 752.395803][ C0] ndisc_send_skb+0xe8e/0x14d0 [ 752.395811][ C0] ? ndisc_ns_create+0x720/0x720 [ 752.395820][ C0] ? __ndisc_fill_addr_option+0xb5/0x110 [ 752.395829][ C0] addrconf_rs_timer+0x277/0x730 [ 752.395835][ C0] ? ipv6_get_lladdr+0x400/0x400 [ 752.395839][ C0] ? rcu_is_watching+0x15/0xd0 [ 752.395842][ C0] ? call_timer_fn+0x114/0x300 [ 752.395845][ C0] ? lock_acquire+0x10a/0x150 [ 752.395849][ C0] ? ipv6_get_lladdr+0x400/0x400 [ 752.395853][ C0] call_timer_fn+0x164/0x300 [ 752.395857][ C0] ? detach_if_pending+0x1c0/0x1c0 [ 752.395861][ C0] ? debug_object_active_state+0x430/0x430 [ 752.395868][ C0] ? __lock_release.isra.0+0x59/0x170 [ 752.395873][ C0] ? rcu_is_watching+0x15/0xd0 [ 752.395878][ C0] __run_timers+0x600/0x930 [ 752.395882][ C0] ? ipv6_get_lladdr+0x400/0x400 [ 752.395888][ C0] ? find_held_lock+0x2b/0x80 [ 752.395891][ C0] ? __bpf_trace_itimer_expire+0x10/0x10 [ 752.395895][ C0] ? __lock_acquire+0x577/0xc10 [ 752.395906][ C0] ? __rwlock_init+0x150/0x150 [ 752.395910][ C0] ? lock_acquire+0x10a/0x150 [ 752.395917][ C0] run_timer_softirq+0xf3/0x170 [ 752.395922][ C0] ? __run_timers+0x930/0x930 [ 752.395926][ C0] ? handle_softirqs+0x19f/0x840 [ 752.395928][ C0] ? rcu_is_watching+0x15/0xd0 [ 752.395931][ C0] handle_softirqs+0x1d7/0x840 [ 752.395939][ C0] ? _local_bh_enable+0xd0/0xd0 [ 752.395942][ C0] ? do_raw_spin_unlock+0x59/0x250 [ 752.395949][ C0] irq_exit_rcu+0xa2/0xf0 [ 752.395952][ C0] common_interrupt+0xb5/0xf0 [ 752.395956][ C0] [ 752.395957][ C0] [ 752.395960][ C0] asm_common_interrupt+0x26/0x40 [ 752.395964][ C0] RIP: 0010:finish_task_switch.isra.0+0x1d2/0x8b0 [ 752.395967][ C0] Code: 04 00 00 8b 05 73 93 a0 03 48 85 d2 0f 85 a3 03 00 00 85 c0 0f 85 ab 02 00 00 48 89 df e8 66 47 2c 02 e8 31 65 31 00 fb 66 90 <48> 83 7d d0 00 74 4d 49 8d bd 18 05 00 00 48 b8 00 00 00 00 00 fc [ 752.395969][ C0] RSP: 0018:ffa00000000e7c00 EFLAGS: 00000282 [ 752.395971][ C0] RAX: 00000000008503cd RBX: ff11000035237280 RCX: ffffffffb4e295df [ 752.395973][ C0] RDX: ff11000001ada2c0 RSI: ffffffffb79b41d3 RDI: ffffffffb746ae00 [ 752.395975][ C0] RBP: ffa00000000e7c48 R08: 0000000000000000 R09: 0000000000000001 [ 752.395976][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: ff1100000a60a2c0 [ 752.395977][ C0] R13: ff11000001ada2c0 R14: ffffffffb8832934 R15: ff11000035237298 [ 752.395984][ C0] ? finish_task_switch.isra.0+0x1cf/0x8b0 [ 752.395995][ C0] __schedule+0xaea/0x1720 [ 752.396000][ C0] ? select_fallback_rq+0x240/0x240 [ 752.396005][ C0] ? io_schedule_timeout+0x130/0x130 [ 752.396011][ C0] ? lockdep_softirqs_on+0xb9/0x130 [ 752.396013][ C0] ? handle_softirqs+0x56f/0x840 [ 752.396021][ C0] preempt_schedule_common+0x44/0xd0 [ 752.396023][ C0] ? preempt_schedule_thunk+0x16/0x30 [ 752.396029][ C0] preempt_schedule_thunk+0x16/0x30 [ 752.396033][ C0] ? kthread_should_park+0x74/0xc0 [ 752.396039][ C0] smpboot_thread_fn+0x742/0x9b0 [ 752.396045][ C0] ? sort_range+0x20/0x20 [ 752.396047][ C0] kthread+0x355/0x5b0 [ 752.396051][ C0] ? kthread_is_per_cpu+0xe0/0xe0 [ 752.396054][ C0] ? __lock_release.isra.0+0x59/0x170 [ 752.396058][ C0] ? rcu_is_watching+0x15/0xd0 [ 752.396061][ C0] ? kthread_is_per_cpu+0xe0/0xe0 [ 752.396065][ C0] ret_from_fork+0x3fb/0x510 [ 752.396070][ C0] ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140 [ 752.396076][ C0] ? __switch_to+0x53c/0xd00 [ 752.396079][ C0] ? kthread_is_per_cpu+0xe0/0xe0 [ 752.396083][ C0] ret_from_fork_asm+0x11/0x20 [ 752.396097][ C0] [ 760.551341][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 760.551662][ C0] rcu: 0-....: (5457 ticks this GP) idle=16fc/1/0x4000000000000000 softirq=264619/264619 fqs=6343 [ 760.552470][ C0] rcu: (t=26000 jiffies g=326277 q=605 ncpus=4) [ 760.552724][ C0] CPU: 0 UID: 0 PID: 14 Comm: ksoftirqd/0 Tainted: G L 6.19.0-rc3-virtme #1 PREEMPT(full) [ 760.552730][ C0] Tainted: [L]=SOFTLOCKUP [ 760.552731][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 760.552733][ C0] RIP: 0010:_raw_spin_unlock_irq+0x2e/0x50 [ 760.552742][ C0] Code: 0f 1f 44 00 00 53 48 8b 74 24 08 48 89 fb 48 83 c7 18 e8 e5 57 df fd 48 89 df e8 4d a9 df fd e8 18 1d 05 fe fb bf 01 00 00 00 8d ff d2 fd 65 8b 05 26 e2 05 02 85 c0 74 02 5b c3 e8 4b b7 87 [ 760.552745][ C0] RSP: 0018:ffa00000000e7a78 EFLAGS: 00000292 [ 760.552749][ C0] RAX: 000000000092e464 RBX: ff11000035238678 RCX: ffffffffb70eddf8 [ 760.552750][ C0] RDX: ff11000001ada2c0 RSI: ffffffffb79b41d3 RDI: 0000000000000001 [ 760.552752][ C0] RBP: ff110000352386b8 R08: 0000000000000000 R09: 0000000000000001 [ 760.552753][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000004 [ 760.552754][ C0] R13: ff110000352384d0 R14: ff11000035238678 R15: ff11000035238660 [ 760.552758][ C0] FS: 0000000000000000(0000) GS:ff1100007c0d4000(0000) knlGS:0000000000000000 [ 760.552761][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 760.552763][ C0] CR2: 00005593ea4c2120 CR3: 0000000023334003 CR4: 0000000000771ef0 [ 760.552764][ C0] PKRU: 55555554 [ 760.552765][ C0] Call Trace: [ 760.552767][ C0] [ 760.552772][ C0] process_backlog+0xd17/0x13f0 [ 760.552783][ C0] __napi_poll.constprop.0+0x97/0x390 [ 760.552787][ C0] net_rx_action+0x4f6/0xed0 [ 760.552796][ C0] ? run_backlog_napi+0x90/0x90 [ 760.552811][ C0] ? _raw_spin_unlock_irq+0x33/0x50 [ 760.552814][ C0] ? run_timer_softirq+0xfb/0x170 [ 760.552820][ C0] ? __run_timers+0x930/0x930 [ 760.552825][ C0] handle_softirqs+0x1d7/0x840 [ 760.552833][ C0] ? _local_bh_enable+0xd0/0xd0 [ 760.552836][ C0] ? preempt_schedule_thunk+0x16/0x30 [ 760.552846][ C0] run_ksoftirqd+0x39/0x60 [ 760.552850][ C0] smpboot_thread_fn+0x2fb/0x9b0 [ 760.552856][ C0] ? sort_range+0x20/0x20 [ 760.552858][ C0] kthread+0x355/0x5b0 [ 760.552862][ C0] ? kthread_is_per_cpu+0xe0/0xe0 [ 760.552864][ C0] ? __lock_release.isra.0+0x59/0x170 [ 760.552869][ C0] ? rcu_is_watching+0x15/0xd0 [ 760.552873][ C0] ? kthread_is_per_cpu+0xe0/0xe0 [ 760.552876][ C0] ret_from_fork+0x3fb/0x510 [ 760.552881][ C0] ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140 [ 760.552887][ C0] ? __switch_to+0x53c/0xd00 [ 760.552890][ C0] ? kthread_is_per_cpu+0xe0/0xe0 [ 760.552893][ C0] ret_from_fork_asm+0x11/0x20 [ 760.552905][ C0] [ 816.395539][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [migration/0:18] [ 816.395550][ C0] Modules linked in: act_skbedit act_ct nf_flow_table nf_tables nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 cls_matchall act_mirred act_gact cls_flower vxlan ip6_udp_tunnel udp_tunnel bridge stp llc 8021q sch_ingress vrf veth [ 816.395580][ C0] irq event stamp: 722263 [ 816.395582][ C0] hardirqs last enabled at (722262): [] irqentry_exit+0xf9/0x4d0 [ 816.395593][ C0] hardirqs last disabled at (722263): [] sysvec_apic_timer_interrupt+0x12/0xe0 [ 816.395597][ C0] softirqs last enabled at (182906): [] handle_softirqs+0x56f/0x840 [ 816.395603][ C0] softirqs last disabled at (182947): [] irq_exit_rcu+0xa2/0xf0 [ 816.395610][ C0] CPU: 0 UID: 0 PID: 18 Comm: migration/0 Tainted: G L 6.19.0-rc3-virtme #1 PREEMPT(full) [ 816.395615][ C0] Tainted: [L]=SOFTLOCKUP [ 816.395617][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 816.395619][ C0] Stopper: 0x0 <- 0x0 [ 816.395626][ C0] RIP: 0010:unwind_next_frame+0x1fa/0x1cc0 [ 816.395632][ C0] Code: 85 c7 02 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 55 41 48 89 d1 48 c1 e9 03 0f b6 04 01 48 89 d1 83 e1 07 38 c8 7f 08 84 c0 <0f> 85 88 08 00 00 41 0f b6 45 41 3c 01 0f 87 6c 46 b1 ff 48 b9 00 [ 816.395634][ C0] RSP: 0018:ffa0000000007658 EFLAGS: 00000246 [ 816.395637][ C0] RAX: 0000000000000000 RBX: 1ff4000000000ed4 RCX: 0000000000000001 [ 816.395639][ C0] RDX: ffa0000000007799 RSI: ffffffffb746ad80 RDI: ffffffffb7a4df80 [ 816.395640][ C0] RBP: 0000000000000002 R08: ff11000001b44fe0 R09: ff11000001b44fe0 [ 816.395642][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: ffa00000000077b0 [ 816.395643][ C0] R13: ffa0000000007758 R14: 0000000000000000 R15: ff11000001b44540 [ 816.395647][ C0] FS: 0000000000000000(0000) GS:ff1100007c0d4000(0000) knlGS:0000000000000000 [ 816.395651][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 816.395653][ C0] CR2: 00005593ea4c2120 CR3: 0000000023334003 CR4: 0000000000771ef0 [ 816.395655][ C0] PKRU: 55555554 [ 816.395656][ C0] Call Trace: [ 816.395658][ C0] [ 816.395663][ C0] ? irq_exit_rcu+0xa2/0xf0 [ 816.395669][ C0] ? kmem_cache_alloc_noprof+0x51e/0x6e0 [ 816.395674][ C0] ? stack_access_ok+0x1d0/0x1d0 [ 816.395677][ C0] ? addrconf_rs_timer+0x277/0x730 [ 816.395685][ C0] ? __unwind_start+0x3f6/0x8c0 [ 816.395690][ C0] ? write_profile+0xf0/0xf0 [ 816.395695][ C0] arch_stack_walk+0x9b/0x100 [ 816.395704][ C0] ? irq_exit_rcu+0xa2/0xf0 [ 816.395711][ C0] stack_trace_save+0x93/0xc0 [ 816.395714][ C0] ? filter_irq_stacks+0xd0/0xd0 [ 816.395723][ C0] set_track_prepare+0x46/0x80 [ 816.395727][ C0] ? kmem_cache_alloc_noprof+0x51e/0x6e0 [ 816.395730][ C0] ? dst_alloc+0x79/0x160 [ 816.395734][ C0] ? icmp6_dst_alloc+0x75/0x4b0 [ 816.395737][ C0] ? ndisc_send_skb+0xe8e/0x14d0 [ 816.395740][ C0] ? addrconf_rs_timer+0x277/0x730 [ 816.395743][ C0] ? call_timer_fn+0x164/0x300 [ 816.395746][ C0] ? __run_timers+0x600/0x930 [ 816.395757][ C0] ? run_timer_softirq+0xf3/0x170 [ 816.395760][ C0] ? handle_softirqs+0x1d7/0x840 [ 816.395762][ C0] ? irq_exit_rcu+0xa2/0xf0 [ 816.395769][ C0] __alloc_object+0xe8/0x250 [ 816.395774][ C0] __create_object+0x26/0xc0 [ 816.395778][ C0] ? kasan_save_track+0x14/0x30 [ 816.395785][ C0] kmem_cache_alloc_noprof+0x51e/0x6e0 [ 816.395793][ C0] ? dst_alloc+0x79/0x160 [ 816.395795][ C0] dst_alloc+0x79/0x160 [ 816.395801][ C0] icmp6_dst_alloc+0x75/0x4b0 [ 816.395804][ C0] ? icmpv6_flow_init+0x34/0x210 [ 816.395810][ C0] ndisc_send_skb+0xe8e/0x14d0 [ 816.395818][ C0] ? ndisc_ns_create+0x720/0x720 [ 816.395827][ C0] ? __ndisc_fill_addr_option+0xb5/0x110 [ 816.395837][ C0] addrconf_rs_timer+0x277/0x730 [ 816.395843][ C0] ? ipv6_get_lladdr+0x400/0x400 [ 816.395848][ C0] ? rcu_is_watching+0x15/0xd0 [ 816.395851][ C0] ? call_timer_fn+0x114/0x300 [ 816.395854][ C0] ? lock_acquire+0x10a/0x150 [ 816.395860][ C0] ? ipv6_get_lladdr+0x400/0x400 [ 816.395864][ C0] call_timer_fn+0x164/0x300 [ 816.395869][ C0] ? detach_if_pending+0x1c0/0x1c0 [ 816.395873][ C0] ? debug_object_active_state+0x430/0x430 [ 816.395880][ C0] ? __lock_release.isra.0+0x59/0x170 [ 816.395885][ C0] ? rcu_is_watching+0x15/0xd0 [ 816.395891][ C0] __run_timers+0x600/0x930 [ 816.395895][ C0] ? ipv6_get_lladdr+0x400/0x400 [ 816.395901][ C0] ? find_held_lock+0x2b/0x80 [ 816.395904][ C0] ? __bpf_trace_itimer_expire+0x10/0x10 [ 816.395908][ C0] ? __lock_acquire+0x577/0xc10 [ 816.395919][ C0] ? __rwlock_init+0x150/0x150 [ 816.395923][ C0] ? lock_acquire+0x10a/0x150 [ 816.395931][ C0] run_timer_softirq+0xf3/0x170 [ 816.395935][ C0] ? __run_timers+0x930/0x930 [ 816.395940][ C0] ? handle_softirqs+0x19f/0x840 [ 816.395943][ C0] ? rcu_is_watching+0x15/0xd0 [ 816.395946][ C0] handle_softirqs+0x1d7/0x840 [ 816.395954][ C0] ? _local_bh_enable+0xd0/0xd0 [ 816.395957][ C0] ? do_raw_spin_unlock+0x59/0x250 [ 816.395965][ C0] irq_exit_rcu+0xa2/0xf0 [ 816.395968][ C0] common_interrupt+0xb5/0xf0 [ 816.395973][ C0] [ 816.395974][ C0] [ 816.395977][ C0] asm_common_interrupt+0x26/0x40 [ 816.395981][ C0] RIP: 0010:finish_task_switch.isra.0+0x1d2/0x8b0 [ 816.395985][ C0] Code: 04 00 00 8b 05 73 93 a0 03 48 85 d2 0f 85 a3 03 00 00 85 c0 0f 85 ab 02 00 00 48 89 df e8 66 47 2c 02 e8 31 65 31 00 fb 66 90 <48> 83 7d d0 00 74 4d 49 8d bd 18 05 00 00 48 b8 00 00 00 00 00 fc [ 816.395987][ C0] RSP: 0018:ffa0000000127c60 EFLAGS: 00000282 [ 816.395990][ C0] RAX: 000000000002caa1 RBX: ff11000035237280 RCX: ffffffffb4e295df [ 816.395991][ C0] RDX: ff11000001b44540 RSI: ffffffffb79b41d3 RDI: ffffffffb746ae00 [ 816.395993][ C0] RBP: ffa0000000127ca8 R08: 0000000000000000 R09: 0000000000000001 [ 816.395995][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: ff11000001ada2c0 [ 816.395996][ C0] R13: ff11000001b44540 R14: ffffffffb8832934 R15: ff11000035237298 [ 816.396003][ C0] ? finish_task_switch.isra.0+0x1cf/0x8b0 [ 816.396014][ C0] __schedule+0xaea/0x1720 [ 816.396022][ C0] ? io_schedule_timeout+0x130/0x130 [ 816.396027][ C0] ? __lock_release.isra.0+0x59/0x170 [ 816.396034][ C0] schedule+0xd4/0x260 [ 816.396038][ C0] smpboot_thread_fn+0x715/0x9b0 [ 816.396045][ C0] ? sort_range+0x20/0x20 [ 816.396047][ C0] kthread+0x355/0x5b0 [ 816.396051][ C0] ? kthread_is_per_cpu+0xe0/0xe0 [ 816.396054][ C0] ? __lock_release.isra.0+0x59/0x170 [ 816.396058][ C0] ? rcu_is_watching+0x15/0xd0 [ 816.396061][ C0] ? kthread_is_per_cpu+0xe0/0xe0 [ 816.396065][ C0] ret_from_fork+0x3fb/0x510 [ 816.396070][ C0] ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140 [ 816.396076][ C0] ? __switch_to+0x53c/0xd00 [ 816.396080][ C0] ? kthread_is_per_cpu+0xe0/0xe0 [ 816.396084][ C0] ret_from_fork_asm+0x11/0x20 [ 816.396099][ C0]