rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5722/1:b..l
(detected by 0, t=10502 jiffies, g=16485, q=237 ncpus=2)
task:syz.0.453 state:R running task stack:21880 pid:5722 ppid:4247 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5241 [inline]
__schedule+0x143f/0x4570 kernel/sched/core.c:6558
preempt_schedule_common+0x83/0xd0 kernel/sched/core.c:6727
preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6751
preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
unwind_next_frame+0x1a55/0x2220 arch/x86/kernel/unwind_orc.c:629
arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
save_stack+0xf6/0x1e0 mm/page_owner.c:127
__reset_page_owner+0x52/0x1a0 mm/page_owner.c:148
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1459 [inline]
free_pcp_prepare mm/page_alloc.c:1509 [inline]
free_unref_page_prepare+0x12a6/0x15b0 mm/page_alloc.c:3384
free_unref_page_list+0x663/0x900 mm/page_alloc.c:3525
release_pages+0x24c4/0x27a0 mm/swap.c:1035
__pagevec_release+0x80/0xf0 mm/swap.c:1055
pagevec_release include/linux/pagevec.h:71 [inline]
folio_batch_release include/linux/pagevec.h:135 [inline]
shmem_undo_range+0x865/0x2390 mm/shmem.c:946
shmem_truncate_range mm/shmem.c:1062 [inline]
shmem_evict_inode+0x265/0xa60 mm/shmem.c:1171
evict+0x529/0x930 fs/inode.c:705
__dentry_kill+0x436/0x650 fs/dcache.c:611
dentry_kill+0xbb/0x290
dput+0xfb/0x1d0 fs/dcache.c:918
__fput+0x62e/0x8d0 fs/file_table.c:328
task_work_run+0x246/0x300 kernel/task_work.c:203
exit_task_work include/linux/task_work.h:39 [inline]
do_exit+0xa6e/0x26a0 kernel/exit.c:871
do_group_exit+0x202/0x2b0 kernel/exit.c:1021
get_signal+0x16f7/0x17d0 kernel/signal.c:2871
arch_do_signal_or_restart+0xb0/0x1a10 arch/x86/kernel/signal.c:871
exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:174
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:316
exc_page_fault+0x1c0/0x620 arch/x86/mm/fault.c:1490
asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:608
RIP: 0033:0x7f164ab85d31
RSP: 002b:00000000fffffe10 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f164ad76080 RCX: 00007f164ab85d29
RDX: 0000000000000000 RSI: 00000000fffffe10 RDI: 0000000000000000
RBP: 00007f164ac01b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f164ad76080 R15: 00007fff9fae8318
rcu: rcu_preempt kthread starved for 10550 jiffies! g16485 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:25016 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5241 [inline]
__schedule+0x143f/0x4570 kernel/sched/core.c:6558
preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
irqentry_exit+0x53/0x80 kernel/entry/common.c:439
asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:696
RIP: 0010:__free_object+0x9aa/0xa80 lib/debugobjects.c:416
Code: 84 24 80 00 00 00 42 80 3c 2b 00 74 08 4c 89 f7 e8 3b cc 98 fd f6 84 24 81 00 00 00 02 75 5a 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: 0000:ffffc90000157980 EFLAGS: 00000206
RAX: 7a7da77c3500f700 RBX: 1ffff9200002af44 RCX: ffffffff97355103
RDX: dffffc0000000000 RSI: ffffffff8b0c0340 RDI: ffffffff8b5e67c0
RBP: ffffc90000157b58 R08: dffffc0000000000 R09: ffffc90000157a60
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880b8f37530
R13: dffffc0000000000 R14: ffffc90000157a20 R15: ffff8880b8f37528
free_object lib/debugobjects.c:424 [inline]
debug_object_free+0x2c1/0x460 lib/debugobjects.c:856
destroy_timer_on_stack kernel/time/timer.c:812 [inline]
schedule_timeout+0x1d0/0x300 kernel/time/timer.c:1969
rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706
rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
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:51 [inline]
NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt drivers/acpi/processor_idle.c:111 [inline]
NMI backtrace for cpu 1 skipped: idling at acpi_idle_do_entry+0x10f/0x340 drivers/acpi/processor_idle.c:567