rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P8709/1:b..l
rcu: (detected by 0, t=10503 jiffies, g=85657, q=536 ncpus=2)
task:dhcpcd-run-hook state:R running task stack:28208 pid:8709 tgid:8709 ppid:8687 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xe37/0x5490 kernel/sched/core.c:6529
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:6851
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:stack_trace_save+0x99/0xd0 kernel/stacktrace.c:114
Code: c7 44 24 30 00 00 00 00 48 c1 e0 20 48 09 c6 48 89 74 24 28 48 8d 74 24 20 65 48 8b 15 90 c3 8d 7e e8 eb fc bd ff 8b 44 24 30 <48> c7 03 00 00 00 00 c7 43 08 00 00 00 00 48 8b 54 24 78 65 48 2b
RSP: 0018:ffffc90003147560 EFLAGS: 00000293
RAX: 000000000000000e RBX: fffff52000628eac RCX: ffffffff8134152e
RDX: ffff888026a98000 RSI: ffffffff81761775 RDI: 0000000000000007
RBP: ffff888026a98000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90003147610
R13: 0000000000002800 R14: dffffc0000000000 R15: ffffea000179b5c0
save_stack+0x162/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x8d/0x400 mm/page_owner.c:297
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1094 [inline]
free_unref_folios+0x9e9/0x1390 mm/page_alloc.c:2660
folios_put_refs+0x560/0x760 mm/swap.c:1039
free_pages_and_swap_cache+0x36d/0x510 mm/swap_state.c:332
__tlb_batch_free_encoded_pages+0xf9/0x290 mm/mmu_gather.c:136
tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
tlb_flush_mmu mm/mmu_gather.c:373 [inline]
tlb_finish_mmu+0x168/0x7b0 mm/mmu_gather.c:465
exit_mmap+0x3d1/0xb20 mm/mmap.c:3425
__mmput+0x12a/0x480 kernel/fork.c:1345
mmput+0x62/0x70 kernel/fork.c:1367
exit_mm kernel/exit.c:571 [inline]
do_exit+0x9bf/0x2bb0 kernel/exit.c:869
do_group_exit+0xd3/0x2a0 kernel/exit.c:1031
__do_sys_exit_group kernel/exit.c:1042 [inline]
__se_sys_exit_group kernel/exit.c:1040 [inline]
__x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1040
x64_sys_call+0x14a9/0x16a0 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8378bfca90
RSP: 002b:00007ffdc8a0fbb8 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000055af2c5e4804 RCX: 00007f8378bfca90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000000
RBP: 0000000000000003 R08: 00007ffdc8a0fcb0 R09: 0000000000000002
R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdc8a0fed8
R13: 00007ffdc8a0fef0 R14: 000055af18a9e169 R15: 00007f8378df9a80
rcu: rcu_preempt kthread starved for 10544 jiffies! g85657 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
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:27312 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xe37/0x5490 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6621
schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2581
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2034
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2236
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:106 [inline]
NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt+0x1a/0x20 drivers/acpi/processor_idle.c:111