rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (1 ticks this GP) idle=ecb/1/0x4000000000000000 softirq=119918/119918 fqs=0 
	(t=27847 jiffies g=201405 q=29)
rcu: rcu_preempt kthread timer wakeup didn't happen for 27846 jiffies! g201405 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=180533
rcu: rcu_preempt kthread starved for 27847 jiffies! g201405 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:26744 pid:   15 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5026 [inline]
 __schedule+0x12c4/0x4590 kernel/sched/core.c:6372
 schedule+0x11b/0x1f0 kernel/sched/core.c:6455
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1884
 rcu_gp_fqs_loop+0x2af/0xf70 kernel/rcu/tree.c:1958
 rcu_gp_kthread+0xa4/0x360 kernel/rcu/tree.c:2131
 kthread+0x3f6/0x4f0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </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: 16403 Comm: syz-executor.0 Not tainted 5.15.106-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
RIP: 0010:debug_lockdep_rcu_enabled+0x0/0x30 kernel/rcu/update.c:279
Code: ad 61 cc 03 00 75 e7 48 c7 c7 80 ef 8a 8a 48 c7 c6 40 14 8b 8a e8 d0 af 34 f7 0f 0b eb d0 cc cc cc cc cc cc cc cc cc cc cc cc <31> c0 83 3d fb 2e cc 03 00 74 1d 83 3d 72 61 cc 03 00 74 14 65 48
RSP: 0018:ffffc90000dd0cb8 EFLAGS: 00000046
RAX: ffff88801964b980 RBX: 0000000000000001 RCX: ffff888020c39d00
RDX: 0000000000010002 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff888037010ae8 R08: ffffffff88667bd4 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888037010800
R13: ffff888037010b40 R14: dffffc0000000000 R15: ffff888037010b28
FS:  00007f3d5fd59700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3d5fd59718 CR3: 000000006cf0e000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 advance_sched+0xb3/0x940 net/sched/sch_taprio.c:719
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
 __sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1103
 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 72 c6 a8 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 67 b4 36 f7 65 8b 05 88 33 e2 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc90002edf8c0 EFLAGS: 00000206
RAX: ba0bda5ead74de00 RBX: 1ffff920005dbf1c RCX: ffffffff913aef03
RDX: dffffc0000000000 RSI: ffffffff8a8af0e0 RDI: 0000000000000001
RBP: ffffc90002edf960 R08: ffffffff818628c0 R09: ffffed10033d9092
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff920005dbf18 R14: ffffc90002edf8e0 R15: 0000000000000246
 spin_unlock_irqrestore include/linux/spinlock.h:418 [inline]
 timerfd_clock_was_set+0x1b3/0x2a0 fs/timerfd.c:113
 clock_was_set+0x7e8/0x880 kernel/time/hrtimer.c:980
 timekeeping_inject_offset+0x65f/0x710 kernel/time/timekeeping.c:1378
 do_adjtimex+0x511/0xaa0 kernel/time/timekeeping.c:2427
 do_clock_adjtime kernel/time/posix-timers.c:1118 [inline]
 __do_sys_clock_adjtime kernel/time/posix-timers.c:1130 [inline]
 __se_sys_clock_adjtime kernel/time/posix-timers.c:1121 [inline]
 __x64_sys_clock_adjtime+0x1dc/0x290 kernel/time/posix-timers.c:1121
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f3d61808169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3d5fd59168 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007f3d61928050 RCX: 00007f3d61808169
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007f3d61863ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffb056849f R14: 00007f3d5fd59300 R15: 0000000000022000
 </TASK>
NMI backtrace for cpu 0
CPU: 0 PID: 3591 Comm: syz-fuzzer Not tainted 5.15.106-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline]
 rcu_dump_cpu_stacks+0x223/0x390 kernel/rcu/tree_stall.h:343
 print_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
 rcu_pending kernel/rcu/tree.c:3887 [inline]
 rcu_sched_clock_irq+0xf26/0x1770 kernel/rcu/tree.c:2605
 update_process_times+0x196/0x200 kernel/time/timer.c:1788
 tick_sched_handle kernel/time/tick-sched.c:226 [inline]
 tick_sched_timer+0x22d/0x3c0 kernel/time/tick-sched.c:1420
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x55b/0xcf0 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
 __sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1103
 sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1097
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0033:0x50f687
Code: 89 c9 48 29 d1 48 c1 f9 3f 49 21 c9 47 8b 04 01 41 0f c8 45 69 c0 bd a7 35 1e 41 c1 e8 0f 41 81 e0 ff ff 01 00 46 8b 4c 80 68 <4c> 89 48 60 4c 8b 90 70 00 0a 00 41 81 e2 ff 7f 00 00 46 89 8c 90
RSP: 002b:000000c008141718 EFLAGS: 00000202
RAX: 000000c000696000 RBX: 000000c000750000 RCX: ffffffffffffffff
RDX: 0000000000010000 RSI: 00000000000005cf RDI: 0000000000004001
RBP: 000000c008141778 R08: 000000000001cb4a R09: 0000000000959abc
R10: 000000c000750000 R11: 0000000000000000 R12: 0000000000000102
R13: 0000000000010000 R14: 000000c00856a680 R15: ffffffffffff7330
 </TASK>