rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (2 ticks this GP) idle=803c/0/0x1 softirq=12405/12405 fqs=6
rcu: 	(detected by 0, t=10502 jiffies, g=8317, q=627 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.12.0-rc6-syzkaller-01362-ga58f00ed24b8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:mark_usage kernel/locking/lockdep.c:4599 [inline]
RIP: 0010:__lock_acquire+0xb2b/0x2050 kernel/locking/lockdep.c:5156
Code: 84 c0 0f 85 a9 11 00 00 83 3d f0 40 ad 0e 00 0f 84 13 09 00 00 83 7c 24 60 00 48 8b 6c 24 40 0f 84 ff 00 00 00 48 8b 5c 24 20 <0f> b6 04 13 84 c0 0f 85 d7 0d 00 00 41 8b 0f f7 c1 00 80 00 00 0f
RSP: 0018:ffffc90000a187f0 EFLAGS: 00000002
RAX: 0000000000000000 RBX: 1ffff11003a5d165 RCX: ffffffff8170541f
RDX: dffffc0000000000 RSI: ffff88801d2e8ae0 RDI: 0000000000000005
RBP: ffff88801d2e8b08 R08: ffffffff942e0807 R09: 1ffffffff285c100
R10: dffffc0000000000 R11: fffffbfff285c101 R12: ffff88801d2e8000
R13: ffff88801d2e8ad8 R14: 1ffff11003a5d165 R15: ffff88801d2e8b28
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000600 CR3: 00000000743ee000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825
 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+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:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:92 [inline]
RIP: 0010:acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:112
Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 c0 d5 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 55 ed a0 00 f3 0f 1e fa fb f4 <fa> c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffc900001a7d08 EFLAGS: 00000246
RAX: ffff88801d2e8000 RBX: ffff88801ee97064 RCX: 0000000000028039
RDX: 0000000000000001 RSI: ffff88801ee97000 RDI: ffff88801ee97064
RBP: 000000000003a9b8 R08: ffff8880b8737e9b R09: 1ffff110170e6fd3
R10: dffffc0000000000 R11: ffffffff8bc9ea00 R12: ffff88801f77a000
R13: 0000000000000001 R14: 0000000000000001 R15: ffffffff8f12ea40
 acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:702
 cpuidle_enter_state+0x109/0x470 drivers/cpuidle/cpuidle.c:264
 cpuidle_enter+0x5d/0xa0 drivers/cpuidle/cpuidle.c:385
 call_cpuidle kernel/sched/idle.c:155 [inline]
 cpuidle_idle_call kernel/sched/idle.c:230 [inline]
 do_idle+0x375/0x5d0 kernel/sched/idle.c:326
 cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:424
 start_secondary+0x102/0x110 arch/x86/kernel/smpboot.c:314
 common_startup_64+0x13e/0x147
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10255 jiffies! g8317 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=4592
rcu: rcu_preempt kthread starved for 10256 jiffies! g8317 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:24912 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x184f/0x4c30 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+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>