rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (2 ticks this GP) idle=1294/1/0x4000000000000000 softirq=22719/22719 fqs=0
rcu: 	(detected by 1, t=10502 jiffies, g=17377, q=1331 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5837 Comm: udevd Not tainted 6.14.0-rc4-syzkaller-00177-ga466fd7e9faf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:lock_release+0x5cb/0xa30
Code: 4c 89 fa 49 bf 00 00 00 00 00 fc ff df 4d 85 f6 0f 85 e5 fc ff ff 48 8b 7c 24 20 48 8b 74 24 18 48 8b 54 24 50 e8 55 83 00 00 <4c> 8b 64 24 10 48 8b 5c 24 28 49 89 dd 4c 8d b4 24 90 00 00 00 48
RSP: 0018:ffffc90000007a00 EFLAGS: 00000046
RAX: 1ffff1100f9e951c RBX: ffff88807cf4a8e0 RCX: ffffc90000007a03
RDX: 0000000000000003 RSI: ffff88807cf4a8e8 RDI: ffff88807cf4a968
RBP: ffffc90000007b30 R08: ffffffff903ced77 R09: 1ffffffff2079dae
R10: dffffc0000000000 R11: fffffbfff2079daf R12: 0000000000000003
R13: 00000000000c4000 R14: d57e1d102ea6ccdd R15: dffffc0000000000
FS:  00007f37f0cf6c80(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff6de17b338 CR3: 0000000065734000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline]
 _raw_spin_unlock_irqrestore+0x79/0x140 kernel/locking/spinlock.c:194
 debug_object_activate+0x3f7/0x580 lib/debugobjects.c:836
 debug_hrtimer_activate kernel/time/hrtimer.c:455 [inline]
 debug_activate kernel/time/hrtimer.c:496 [inline]
 enqueue_hrtimer+0x30/0x3c0 kernel/time/hrtimer.c:1100
 __run_hrtimer kernel/time/hrtimer.c:1818 [inline]
 __hrtimer_run_queues+0x6cb/0xd30 kernel/time/hrtimer.c:1865
 hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1927
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x420 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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:36 [inline]
RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:149 [inline]
RIP: 0010:wrmsr arch/x86/include/asm/msr.h:256 [inline]
RIP: 0010:native_apic_msr_write+0x39/0x50 arch/x86/include/asm/apic.h:212
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 cc cc cc cc f3 0f 1e fa 89 f6 31 d2 e9 d3 ff c2 03 0f 1f
RSP: 0018:ffffc9000406fbe8 EFLAGS: 00000246
RAX: 00000000000000f6 RBX: 0000000000000200 RCX: 000000000000083f
RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f
RBP: 0000000000000000 R08: ffffffff815fda8e R09: 1ffff9200080df68
R10: dffffc0000000000 R11: fffff5200080df69 R12: ffff8880b8635ed0
R13: 0000000000000000 R14: 2c1008001f8bfbff R15: 0000000000000020
 __apic_send_IPI_self arch/x86/include/asm/apic.h:455 [inline]
 arch_irq_work_raise+0x6f/0x80 arch/x86/kernel/irq_work.c:31
 irq_work_queue+0xa7/0x150 kernel/irq_work.c:124
 bpf_send_signal_common+0x4a8/0x6b0 kernel/trace/bpf_trace.c:867
 ____bpf_send_signal kernel/trace/bpf_trace.c:876 [inline]
 bpf_send_signal+0x1d/0x30 kernel/trace/bpf_trace.c:874
 bpf_prog_8cc4ff36b5985b6a+0x1e/0x20
 bpf_dispatcher_nop_func include/linux/bpf.h:1290 [inline]
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run include/linux/filter.h:708 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2371 [inline]
 bpf_trace_run2+0x2ec/0x540 kernel/trace/bpf_trace.c:2412
 __bpf_trace_sys_enter+0x38/0x60 include/trace/events/syscalls.h:18
 __do_trace_sys_enter include/trace/events/syscalls.h:18 [inline]
 trace_sys_enter+0xb0/0x120 include/trace/events/syscalls.h:18
 syscall_trace_enter+0xf8/0x150 kernel/entry/common.c:61
 syscall_enter_from_user_mode_work include/linux/entry-common.h:169 [inline]
 syscall_enter_from_user_mode include/linux/entry-common.h:199 [inline]
 do_syscall_64+0xcc/0x230 arch/x86/entry/common.c:79
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f37f0923457
Code: 73 01 c3 48 8b 0d d1 d9 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 20 b8 e8 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 76 48 8b 15 a2 d9 0c 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffed4612258 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f37f0923457
RDX: 0000000000000004 RSI: 00007ffed4612298 RDI: 0000000000000004
RBP: 00007ffed46122a4 R08: 0000000000000007 R09: 2110af80919a77bf
R10: 00000000ffffffff R11: 0000000000000246 R12: 0000556b36b2a8d0
R13: 00007ffed4612298 R14: 0000000000000001 R15: 0000556b36b04910
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g17377 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=6428
rcu: rcu_preempt kthread starved for 10502 jiffies! g17377 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:25784 pid:17    tgid:17    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5378 [inline]
 __schedule+0x190e/0x4c90 kernel/sched/core.c:6765
 __schedule_loop kernel/sched/core.c:6842 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6857
 schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2024
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2226
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>