rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-...!: (10499 ticks this GP) idle=c574/1/0x4000000000000000 softirq=17175/17175 fqs=0
	(t=10501 jiffies g=20401 q=60 ncpus=2)
rcu: rcu_preempt kthread starved for 10502 jiffies! g20401 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R  running task     stack:25952 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5241 [inline]
 __schedule+0x132c/0x4330 kernel/sched/core.c:6554
 schedule+0xbf/0x180 kernel/sched/core.c:6630
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1935
 rcu_gp_fqs_loop+0x2c2/0x1010 kernel/rcu/tree.c:1661
 rcu_gp_kthread+0xa3/0x3a0 kernel/rcu/tree.c:1860
 kthread+0x26e/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 6150 Comm: syz-executor.3 Not tainted 6.1.47-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:22 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline]
RIP: 0010:seqcount_lockdep_reader_access+0x169/0x220 include/linux/seqlock.h:104
Code: 48 c7 c7 48 30 14 8d 4c 89 e6 e8 52 6d f0 ff e8 6d 0d 17 00 4c 89 f3 48 c1 eb 03 49 bc 00 00 00 00 00 fc ff df 42 80 3c 23 00 <74> 08 4c 89 f7 e8 0d ef 66 00 48 c7 44 24 20 00 00 00 00 9c 8f 44
RSP: 0018:ffffc90000007d80 EFLAGS: 00000046
RAX: 513070f5e2b26000 RBX: 1ffff92000000fb4 RCX: ffffc90000007c03
RDX: 0000000000000000 RSI: ffffffff8aebf3a0 RDI: ffffffff8b3ceae0
RBP: ffffc90000007e38 R08: dffffc0000000000 R09: fffffbfff1ce7076
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000000 R14: ffffc90000007da0 R15: 1ffff92000000fb0
FS:  0000555555bd1480(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30f2d000 CR3: 0000000031878000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 timekeeping_get_delta kernel/time/timekeeping.c:254 [inline]
 timekeeping_get_ns kernel/time/timekeeping.c:388 [inline]
 ktime_get+0x7f/0x270 kernel/time/timekeeping.c:848
 clockevents_program_event+0xe1/0x310 kernel/time/clockevents.c:326
 hrtimer_interrupt+0x546/0x980 kernel/time/hrtimer.c:1824
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: 81 14 f6 ff 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 ee 21 db f6 48 89 df e8 06 5f dc f6 e8 01 c2 01 f7 fb bf 01 00 00 00 <e8> 86 13 cf f6 65 8b 05 47 7e 73 75 85 c0 74 02 5b c3 e8 c4 9c 71
RSP: 0018:ffffc90003827b30 EFLAGS: 00000286
RAX: 513070f5e2b26000 RBX: ffff8880383cb780 RCX: ffffffff91c92103
RDX: dffffc0000000000 RSI: ffffffff8aebe220 RDI: 0000000000000001
RBP: ffffc90003827c70 R08: dffffc0000000000 R09: ffffed10070796f1
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11007079783
R13: 000000001c000004 R14: 0000000000000021 R15: ffff8880383cbc18
 spin_unlock_irq include/linux/spinlock.h:400 [inline]
 get_signal+0x154b/0x17d0 kernel/signal.c:2865
 arch_do_signal_or_restart+0xb0/0x1a10 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297
 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f79b2838615
Code: 72 f3 48 83 e8 08 48 39 f2 73 17 66 2e 0f 1f 84 00 00 00 00 00 48 8b 70 f8 48 83 e8 08 48 39 f2 72 f3 48 39 c3 73 3e 48 89 33 <48> 83 c3 08 48 8b 70 f8 48 89 08 48 8b 0b 49 8b 14 24 eb bf 48 39
RSP: 002b:00007fff48f4b960 EFLAGS: 00000283
RAX: 00007f79b228e0b8 RBX: 00007f79b228df68 RCX: ffffffff83ed67ad
RDX: ffffffff83ed67ad RSI: ffffffff83ed67ad RDI: 00007f79b228e370
RBP: 00007f79b228dcb8 R08: 00007f79b228e010 R09: 00000000000000cc
R10: 0000000088849909 R11: 0000000000000293 R12: 00007f79b228dcb0
R13: 0000000000000016 R14: 00007f79b2990000 R15: 00007f79b299c018
 </TASK>
CPU: 1 PID: 6156 Comm: syz-executor.4 Not tainted 6.1.47-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: 81 14 f6 ff 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 ee 21 db f6 48 89 df e8 06 5f dc f6 e8 01 c2 01 f7 fb bf 01 00 00 00 <e8> 86 13 cf f6 65 8b 05 47 7e 73 75 85 c0 74 02 5b c3 e8 c4 9c 71
RSP: 0018:ffffc900035ffb30 EFLAGS: 00000286
RAX: e528c22a5f83bd00 RBX: ffff8880383cdc80 RCX: ffffffff91c92103
RDX: dffffc0000000000 RSI: ffffffff8aebe220 RDI: 0000000000000001
RBP: ffffc900035ffc70 R08: dffffc0000000000 R09: ffffed1007079b91
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11007079c23
R13: 000000001c000004 R14: 0000000000000021 R15: ffff8880383ce118
FS:  00007f930410a6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020135030 CR3: 00000000220ac000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 spin_unlock_irq include/linux/spinlock.h:400 [inline]
 get_signal+0x154b/0x17d0 kernel/signal.c:2865
 arch_do_signal_or_restart+0xb0/0x1a10 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297
 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f930347cae7
Code: 14 25 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 <0f> 05 48 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89
RSP: 002b:00007f930410a178 EFLAGS: 00000246
RAX: 00000000000000ca RBX: 00007f930359bf88 RCX: 00007f930347cae9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f930359bf88
RBP: 00007f930359bf80 R08: 00007f930410a6c0 R09: 00007f930410a6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f930359bf8c
R13: 000000000000000b R14: 00007ffda6dccef0 R15: 00007ffda6dccfd8
 </TASK>