rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 0, t=10502 jiffies, g=50121, q=16)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4295013218-4295002716), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g50121 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R  running task     stack:27520 pid:   15 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5049 [inline]
 __schedule+0x11c3/0x4350 kernel/sched/core.c:6395
 schedule+0x11b/0x1e0 kernel/sched/core.c:6478
 schedule_timeout+0x184/0x2d0 kernel/time/timer.c:2117
 rcu_gp_fqs_loop+0x2be/0x11f0 kernel/rcu/tree.c:1972
 rcu_gp_kthread+0x9a/0x370 kernel/rcu/tree.c:2145
 kthread+0x42e/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 12723 Comm: syz.9.2042 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:clockevents_program_event+0x1/0x310 kernel/time/clockevents.c:305
Code: 89 c6 e8 92 60 0d 00 48 89 df 4c 89 f0 5b 41 5e ff e0 e8 82 60 0d 00 31 c0 5b 41 5e c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 55 <41> 57 41 56 41 55 41 54 53 89 d5 49 89 f6 48 89 fb e8 59 60 0d 00
RSP: 0018:ffffc90000dd0ec0 EFLAGS: 00000046
RAX: ffffffff816c1aeb RBX: 000000b13132c0b8 RCX: ffff888029a9d940
RDX: 0000000000000000 RSI: 000000b13184d400 RDI: ffff8880b9127280
RBP: 000000b13184d400 R08: ffff8880b912a243 R09: 1ffff11017225448
R10: dffffc0000000000 R11: ffffed1017225449 R12: ffff8880b912a240
R13: dffffc0000000000 R14: ffff8880b912a3a8 R15: ffff8880b912a2a0
FS:  00007f996f2fe6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000058 CR3: 000000004889f000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 hrtimer_interrupt+0x4cb/0x8b0 kernel/time/hrtimer.c:1824
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
 __sysvec_apic_timer_interrupt+0x137/0x4a0 arch/x86/kernel/apic/apic.c:1114
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:should_resched arch/x86/include/asm/preempt.h:103 [inline]
RIP: 0010:__local_bh_enable_ip+0x13e/0x1c0 kernel/softirq.c:408
Code: 8a e8 76 c0 70 08 65 66 8b 05 ce 71 ba 7e 66 85 c0 75 54 bf 01 00 00 00 e8 6f 21 09 00 e8 3a f3 35 00 fb 65 8b 05 7a 48 b9 7e <85> c0 75 05 e8 b9 55 b7 ff 48 c7 04 24 0e 36 e0 45 4b c7 04 37 00
RSP: 0018:ffffc9000338faa0 EFLAGS: 00000286
RAX: 0000000080000000 RBX: 0000000000000200 RCX: f558ce0cddbd9d00
RDX: dffffc0000000000 RSI: ffffffff8a2b2be0 RDI: ffffffff8a79c980
RBP: ffffc9000338fb30 R08: ffff88813fe1f207 R09: 1ffff11027fc3e40
R10: dffffc0000000000 R11: ffffed1027fc3e41 R12: ffffffff812c51d5
R13: dffffc0000000000 R14: dffffc0000000000 R15: 1ffff92000671f54
 fpregs_unlock arch/x86/include/asm/fpu/api.h:78 [inline]
 copy_fpstate_to_sigframe+0x7cf/0xba0 arch/x86/kernel/fpu/signal.c:205
 get_sigframe arch/x86/kernel/signal.c:295 [inline]
 __setup_rt_frame arch/x86/kernel/signal.c:471 [inline]
 setup_rt_frame arch/x86/kernel/signal.c:780 [inline]
 handle_signal arch/x86/kernel/signal.c:824 [inline]
 arch_do_signal_or_restart+0x640/0x12a0 arch/x86/kernel/signal.c:869
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0x9e/0x130 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9970f5eb37
Code: 83 c4 08 c3 0f 1f 80 00 00 00 00 48 83 ec 08 48 89 f2 48 63 ff 4c 89 d6 41 51 31 c0 4d 89 c1 49 89 c8 4c 89 d9 e8 09 63 14 00 <5a> 59 48 83 c4 08 c3 66 90 66 0f ef c0 4c 63 c9 49 89 d0 0f 11 07
RSP: 002b:00007f996f2fe030 EFLAGS: 00000217
RAX: 0000000000000000 RBX: 00007f997131dfa0 RCX: 00007f99710a4e59
RDX: 0000200000000040 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 00007f997113ae6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f997131e038 R14: 00007f997131dfa0 R15: 00007fff3432c198
 </TASK>