rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 1, t=10502 jiffies, g=9937, q=1 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294966173-4294955670), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10504 jiffies! g9937 f0x2 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:24176 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0x177f/0x4960 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0x149/0x260 kernel/sched/core.c:6817
 schedule_timeout+0x1bd/0x300 kernel/time/timer.c:2183
 rcu_gp_fqs_loop+0x30a/0x1500 kernel/rcu/tree.c:1631
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1830
 kthread+0x2d3/0x370 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </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: 5227 Comm: syz-executor114 Not tainted 6.7.0-syzkaller-12991-g7a396820222d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:__sanitizer_cov_trace_pc+0x5c/0x60 kernel/kcov.c:225
Code: d8 15 00 00 83 fa 02 75 21 48 8b 91 e0 15 00 00 48 8b 32 48 8d 7e 01 8b 89 dc 15 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2 08 <c3> 0f 1f 00 f3 0f 1e fa 4c 8b 04 24 65 48 8b 15 c0 c4 74 7e 65 8b
RSP: 0018:ffffc90000007d78 EFLAGS: 00000046
RAX: ffffffff817e1377 RBX: 0000000000000000 RCX: ffff888026efd940
RDX: 0000000080010001 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007e28 R08: ffffffff817e136d R09: 1ffffffff1e0462d
R10: dffffc0000000000 R11: fffffbfff1e0462e R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000046 R15: 1ffff92000000fb0
FS:  000055555703d3c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002006b000 CR3: 000000001c892000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 seqcount_lockdep_reader_access+0x1b7/0x220
 ktime_get+0x35/0x270 kernel/time/timekeeping.c:846
 clockevents_program_event+0xe6/0x340 kernel/time/clockevents.c:326
 hrtimer_interrupt+0x54a/0x980 kernel/time/hrtimer.c:1827
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1065 [inline]
 __sysvec_apic_timer_interrupt+0x104/0x3a0 arch/x86/kernel/apic/apic.c:1082
 sysvec_apic_timer_interrupt+0x92/0xb0 arch/x86/kernel/apic/apic.c:1076
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/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+0x29/0x50 kernel/locking/spinlock.c:202
Code: 00 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 aa 0a 3d f6 48 89 df e8 32 45 3e f6 e8 0d 51 65 f6 fb bf 01 00 00 00 <e8> b2 62 30 f6 65 8b 05 63 18 d3 74 85 c0 74 02 5b c3 e8 10 e1 cf
RSP: 0018:ffffc900047f7c70 EFLAGS: 00000282
RAX: f42882609a823d00 RBX: ffff88801e828000 RCX: ffffffff925ef303
RDX: dffffc0000000000 RSI: ffffffff8b6aa5e0 RDI: 0000000000000001
RBP: ffffc900047f7db0 R08: ffffffff8f02316f R09: 1ffffffff1e0462d
R10: dffffc0000000000 R11: fffffbfff1e0462e R12: 1ffff11003d05093
R13: 000000001c000004 R14: 0000000000000021 R15: ffff88801e828498
 spin_unlock_irq include/linux/spinlock.h:401 [inline]
 get_signal+0x1569/0x1840 kernel/signal.c:2896
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:105 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline]
 syscall_exit_to_user_mode+0xc8/0x370 kernel/entry/common.c:212
 do_syscall_64+0x102/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f9fdd42de79
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 18 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 01 48
RSP: 002b:00007ffd4b1b25f8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007f9fdd42de79
RDX: 000000002006b000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000002c1bb
R13: 00007ffd4b1b2618 R14: 00007ffd4b1b2670 R15: 00007ffd4b1b2660
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.506 msecs