hrtimer: interrupt took 11978981 ns
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 1, t=10502 jiffies, g=25017, q=668 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10456 (4294970582-4294960126), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10456 jiffies! g25017 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:25560 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7067
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__free_object+0x9ae/0xa80 lib/debugobjects.c:415
Code: 84 24 80 00 00 00 42 80 3c 2b 00 74 08 4c 89 f7 e8 c7 0e 45 fd f6 84 24 81 00 00 00 02 75 5e f7 44 24 10 00 02 00 00 74 01 fb <48> c7 44 24 60 0e 36 e0 45 48 8b 44 24 40 49 c7 44 05 00 00 00 00
RSP: 0018:ffffc900001678c0 EFLAGS: 00000206
RAX: 81b61497c0aba000 RBX: 1ffff9200002cf2c RCX: ffffffff9479f603
RDX: dffffc0000000000 RSI: ffffffff8bcabb80 RDI: ffffffff8c1feb80
RBP: ffffc90000167a90 R08: ffffffff8fad4d6f R09: 1ffffffff1f5a9ad
R10: dffffc0000000000 R11: fffffbfff1f5a9ae R12: ffff8880b943a308
R13: dffffc0000000000 R14: ffffc90000167960 R15: ffff8880b943a300
 free_object lib/debugobjects.c:423 [inline]
 debug_object_free+0x3a6/0x460 lib/debugobjects.c:866
 destroy_timer_on_stack kernel/time/timer.c:866 [inline]
 schedule_timeout+0x1d7/0x310 kernel/time/timer.c:2585
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2000
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2202
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline]
NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:112