rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5334/1:b..l P6674/1:b..l P5773/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=22569, q=587 ncpus=2)
task:udevd state:R running task stack:23568 pid:5773 tgid:5773 ppid:4540 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5407 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6748
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7070
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:lock_release+0x630/0x9f0 kernel/locking/lockdep.c:5778
Code: 3c 3b 00 74 08 4c 89 f7 e8 ad 59 89 00 f6 84 24 91 00 00 00 02 75 77 41 f7 c5 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 4b c7 44 27 08 00 00 00 00 65 48 8b 04 25
RSP: 0018:ffffc9000348ee00 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000691dd2 RCX: ffffc9000348ee03
RDX: 0000000000000002 RSI: ffffffff8bcaccc0 RDI: ffffffff8c2028c0
RBP: ffffc9000348ef30 R08: ffffffff8fad956f R09: 1ffffffff1f5b2ad
R10: dffffc0000000000 R11: fffffbfff1f5b2ae R12: 1ffff92000691dcc
R13: 0000000000000246 R14: ffffc9000348ee90 R15: dffffc0000000000
rcu_lock_release include/linux/rcupdate.h:339 [inline]
rcu_read_unlock include/linux/rcupdate.h:812 [inline]
is_bpf_text_address+0x280/0x2a0 kernel/bpf/core.c:769
kernel_text_address+0xa7/0xe0 kernel/extable.c:125
__kernel_text_address+0xd/0x40 kernel/extable.c:79
unwind_get_return_address+0x5d/0xc0 arch/x86/kernel/unwind_orc.c:369
arch_stack_walk+0x125/0x1b0 arch/x86/kernel/stacktrace.c:26
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
save_stack+0xfb/0x1f0 mm/page_owner.c:156
__set_page_owner+0x92/0x800 mm/page_owner.c:320
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1473
prep_new_page mm/page_alloc.c:1481 [inline]
get_page_from_freelist+0x2e4c/0x2f10 mm/page_alloc.c:3425
__alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4683
alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
shmem_alloc_folio mm/shmem.c:1639 [inline]
shmem_alloc_and_add_folio+0x24d/0xdb0 mm/shmem.c:1679
shmem_get_folio_gfp+0x82d/0x1f50 mm/shmem.c:2066
shmem_get_folio mm/shmem.c:2171 [inline]
shmem_write_begin+0x170/0x4d0 mm/shmem.c:2754
generic_perform_write+0x324/0x640 mm/filemap.c:4016
shmem_file_write_iter+0xfc/0x120 mm/shmem.c:2930
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa74/0xc90 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe9e4516bf2
RSP: 002b:00007fff63bff0a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000556438d376f0 RCX: 00007fe9e4516bf2
RDX: 0000000000000011 RSI: 0000556438d1c930 RDI: 0000000000000009
RBP: 0000000000000011 R08: 0000000000000000 R09: 00007fff63bfec58
R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000011
R13: 0000556438d1c930 R14: 00007fff63bff578 R15: 000055642abd7ec8
task:syz.1.264 state:R running task stack:26000 pid:6674 tgid:6668 ppid:5872 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5407 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6748
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6927
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6951
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
zap_pte_range mm/memory.c:1676 [inline]
zap_pmd_range mm/memory.c:1724 [inline]
zap_pud_range mm/memory.c:1753 [inline]
zap_p4d_range mm/memory.c:1774 [inline]
unmap_page_range+0x3631/0x40f0 mm/memory.c:1795
unmap_vmas+0x3cc/0x5f0 mm/memory.c:1885
exit_mmap+0x264/0xc80 mm/mmap.c:3341
__mmput+0x115/0x3c0 kernel/fork.c:1346
exit_mm+0x220/0x310 kernel/exit.c:567
do_exit+0x9aa/0x27e0 kernel/exit.c:863
do_group_exit+0x207/0x2c0 kernel/exit.c:1025
get_signal+0x16a1/0x1740 kernel/signal.c:2909
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x360 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6bc0375bd9
RSP: 002b:00007f6bc116a0f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f6bc0504040 RCX: 00007f6bc0375bd9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f6bc0504040
RBP: 00007f6bc0504038 R08: 00007f6bc116a6c0 R09: 00007f6bc116a6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6bc0504044
R13: 000000000000006e R14: 00007ffff48761b0 R15: 00007ffff4876298
task:kworker/u8:10 state:R running task stack:22992 pid:5334 tgid:5334 ppid:2 flags:0x00004000
Workqueue: bat_events batadv_nc_worker
Call Trace:
context_switch kernel/sched/core.c:5407 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6748
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7070
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:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5758
Code: 2b 00 74 08 4c 89 f7 e8 0a 84 89 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc900045b79e0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff920008b6f48 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8bcaccc0 RDI: ffffffff8c2028c0
RBP: ffffc900045b7b40 R08: ffffffff92faf587 R09: 1ffffffff25f5eb0
R10: dffffc0000000000 R11: fffffbfff25f5eb1 R12: 1ffff920008b6f44
R13: dffffc0000000000 R14: ffffc900045b7a40 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
rcu_read_lock include/linux/rcupdate.h:781 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0xec/0x610 net/batman-adv/network-coding.c:719
process_one_work kernel/workqueue.c:3248 [inline]
process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3329
worker_thread+0x86d/0xd50 kernel/workqueue.c:3409
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
rcu: rcu_preempt kthread starved for 9640 jiffies! g22569 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:26448 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5407 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6748
__schedule_loop kernel/sched/core.c:6825 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6840
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
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
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:86 [inline]
NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:111