bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (0 ticks this GP) idle=db0c/1/0x4000000000000000 softirq=91266/91266 fqs=0
rcu: (detected by 1, t=10506 jiffies, g=87145, q=561 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 16753 Comm: syz.9.2325 Not tainted 6.12.0-rc4-syzkaller-00161-gae90f6a6170d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__preempt_count_dec_and_test arch/x86/include/asm/preempt.h:94 [inline]
RIP: 0010:rcu_is_watching+0x60/0xb0 kernel/rcu/tree.c:738
Code: 80 3c 38 00 74 08 4c 89 f7 e8 6c cf 83 00 48 c7 c3 98 7e 03 00 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 75 22 8b 03 <65> ff 0d b1 11 89 7e 74 10 83 e0 04 c1 e8 02 5b 41 5e 41 5f e9 e2
RSP: 0018:ffffc900000078c0 EFLAGS: 00000046
RAX: 00000000001edb0c RBX: ffff8880b8637e98 RCX: ffffffff81704674
RDX: 0000000000000000 RSI: ffffffff8c610340 RDI: ffffffff8c610300
RBP: ffffc90000007a28 R08: ffffffff901d026f R09: 1ffffffff203a04d
R10: dffffc0000000000 R11: fffffbfff203a04e R12: 1ffff92000000f24
R13: dffffc0000000000 R14: ffffffff8e31fa50 R15: dffffc0000000000
FS: 00007fd94f81b6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f913fdfef98 CR3: 0000000064370000 CR4: 0000000000350ef0
Call Trace:
trace_lock_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0xe3/0x550 kernel/locking/lockdep.c:5796
debug_objects_fill_pool+0xa0/0x9f0 lib/debugobjects.c:614
debug_object_activate+0x135/0x510 lib/debugobjects.c:704
debug_hrtimer_activate kernel/time/hrtimer.c:423 [inline]
debug_activate kernel/time/hrtimer.c:478 [inline]
enqueue_hrtimer+0x30/0x3c0 kernel/time/hrtimer.c:1085
__run_hrtimer kernel/time/hrtimer.c:1708 [inline]
__hrtimer_run_queues+0x6cb/0xd50 kernel/time/hrtimer.c:1755
hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1817
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x112/0x420 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:unwind_next_frame+0x13c/0x22d0 arch/x86/kernel/unwind_orc.c:494
Code: 0f b6 04 20 84 c0 0f 85 b8 19 00 00 4c 0f be 7d 00 48 8b 44 24 30 42 80 3c 20 00 48 8b 5c 24 18 74 08 48 89 df e8 f4 3d bd 00 <4c> 03 3b 49 ff cf 4c 89 6c 24 08 4c 89 74 24 68 48 89 2c 24 0f 84
RSP: 0018:ffffc9000b76ee70 EFLAGS: 00000246
RAX: 1ffff920016eddf1 RBX: ffffc9000b76ef88 RCX: ffffffff8bd0c900
RDX: dffffc0000000000 RSI: ffffffff8bc6e049 RDI: ffffffff814156e0
RBP: ffffc9000b76ef75 R08: 000000000000000b R09: ffffc9000b76f030
R10: dffffc0000000000 R11: ffffffff818090c0 R12: dffffc0000000000
R13: ffffc9000b76ef40 R14: ffffffff8bc6e049 R15: 0000000000000000
arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
save_stack+0xfb/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x76/0x430 mm/page_owner.c:297
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1108 [inline]
free_unref_folios+0xf12/0x18d0 mm/page_alloc.c:2686
folios_put_refs+0x76c/0x860 mm/swap.c:1007
folio_batch_release include/linux/pagevec.h:101 [inline]
shmem_undo_range+0x64c/0x1cf0 mm/shmem.c:1032
shmem_truncate_range mm/shmem.c:1144 [inline]
shmem_evict_inode+0x29b/0xa80 mm/shmem.c:1272
evict+0x4ea/0x9b0 fs/inode.c:725
__dentry_kill+0x20d/0x630 fs/dcache.c:615
dput+0x19f/0x2b0 fs/dcache.c:857
__fput+0x5d2/0x880 fs/file_table.c:439
task_work_run+0x251/0x310 kernel/task_work.c:239
get_signal+0x15e8/0x1740 kernel/signal.c:2690
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
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+0xc9/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd94e97d1ff
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 c9 8d 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 1c 8e 02 00 48
RSP: 002b:00007fd94f81adf0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: 00000000006fd000 RBX: 00000000013bd7ef RCX: 00007fd94e97d1ff
RDX: 00000000013bd7ef RSI: 00007fd944000000 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000005505
R10: 00000000000003c8 R11: 0000000000000293 R12: 0000000000000004
R13: 00007fd94f81aef0 R14: 00007fd94f81aeb0 R15: 00007fd944000000
rcu: rcu_preempt kthread timer wakeup didn't happen for 10505 jiffies! g87145 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=75119
rcu: rcu_preempt kthread starved for 10506 jiffies! g87145 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:24272 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x18af/0x4bd0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6782
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2615
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
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