rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
(detected by 1, t=10502 jiffies, g=6601, q=124)
rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294954001-4294943498), jiffies_till_next_fqs=1, root ->qsmask 0x0
blkid R running task 28200 8322 8269 0x8000400a
Call Trace:
sched_show_task+0x40f/0x560 kernel/sched/core.c:5954
print_other_cpu_stall kernel/rcu/tree_stall.h:410 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:538 [inline]
rcu_pending kernel/rcu/tree.c:2827 [inline]
rcu_sched_clock_irq+0x1861/0x1ad0 kernel/rcu/tree.c:2271
update_process_times+0x12d/0x180 kernel/time/timer.c:1726
tick_sched_handle kernel/time/tick-sched.c:167 [inline]
tick_sched_timer+0x263/0x420 kernel/time/tick-sched.c:1310
__run_hrtimer kernel/time/hrtimer.c:1517 [inline]
__hrtimer_run_queues+0x403/0x840 kernel/time/hrtimer.c:1579
hrtimer_interrupt+0x38c/0xda0 kernel/time/hrtimer.c:1641
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline]
smp_apic_timer_interrupt+0x109/0x280 arch/x86/kernel/apic/apic.c:1135
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829
RIP: 0010:__memcg_kmem_uncharge+0x139/0x1a0 mm/memcontrol.c:2925
Code: 8a 04 28 84 c0 75 3b f6 03 01 75 10 49 83 c7 10 4c 89 ff 48 8b 75 d0 e8 f5 90 00 00 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d 44 89 e1 80 e1 07 80 c1 03 38 c1 7c 96 4c 89 e7 e8 41 fd fa ff
RSP: 0018:ffffc900022279e8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: ffffea00024ed7c0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea00024ed7c0
RBP: ffffc90002227a28 R08: 000000000003a728 R09: ffffed1015088ea7
R10: ffffed1015088ea7 R11: 0000000000000000 R12: ffff8880a83e9c20
R13: dffffc0000000000 R14: 1ffff1101507d384 R15: ffff8880a8447528
release_task_stack kernel/fork.c:440 [inline]
put_task_stack+0xa3/0x130 kernel/fork.c:451
finish_task_switch+0x3f1/0x550 kernel/sched/core.c:3256
context_switch kernel/sched/core.c:3388 [inline]
__schedule+0x9a8/0xcc0 kernel/sched/core.c:4081
preempt_schedule_common kernel/sched/core.c:4236 [inline]
preempt_schedule+0xdb/0x120 kernel/sched/core.c:4261
___preempt_schedule+0x16/0x18 arch/x86/entry/thunk_64.S:50
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
_raw_spin_unlock_irqrestore+0xcc/0xe0 kernel/locking/spinlock.c:191
spin_unlock_irqrestore include/linux/spinlock.h:393 [inline]
__wake_up_common_lock kernel/sched/wait.c:125 [inline]
__wake_up_sync_key+0xe2/0x150 kernel/sched/wait.c:190
pipe_release+0x17b/0x330 fs/pipe.c:634
__fput+0x2e4/0x740 fs/file_table.c:280
____fput+0x15/0x20 fs/file_table.c:313
task_work_run+0x17e/0x1b0 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0x5c4/0x2020 kernel/exit.c:797
do_group_exit+0x15c/0x2b0 kernel/exit.c:895
__do_sys_exit_group+0x17/0x20 kernel/exit.c:906
__se_sys_exit_group+0x14/0x20 kernel/exit.c:904
__x64_sys_exit_group+0x3b/0x40 kernel/exit.c:904
do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f7c6a9001e8
Code: Bad RIP value.
RSP: 002b:00007ffcb549ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f7c6a9001e8
RDX: 0000000000000002 RSI: 000000000000003c RDI: 0000000000000002
RBP: 00007f7c6abd5840 R08: 00000000000000e7 R09: ffffffffffffffa8
R10: 00007f7c6abdb740 R11: 0000000000000246 R12: 00007f7c6abd5840
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000
rcu: rcu_preempt kthread starved for 10535 jiffies! g6601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: RCU grace-period kthread stack dump:
rcu_preempt R running task 28536 10 2 0x80004000
Call Trace:
context_switch kernel/sched/core.c:3385 [inline]
__schedule+0x9a0/0xcc0 kernel/sched/core.c:4081
schedule+0x181/0x210 kernel/sched/core.c:4155
schedule_timeout+0x14f/0x240 kernel/time/timer.c:1895
rcu_gp_fqs_loop kernel/rcu/tree.c:1661 [inline]
rcu_gp_kthread+0xed8/0x1770 kernel/rcu/tree.c:1821
kthread+0x332/0x350 kernel/kthread.c:255
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352