rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P4444/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=30153, q=191 ncpus=2)
task:udevd           state:R  running task     stack:24816 pid:4444  ppid:1      flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0x1d15/0x5790 kernel/sched/core.c:6669
 preempt_schedule_irq+0x52/0x90 kernel/sched/core.c:6981
 irqentry_exit+0x35/0x80 kernel/entry/common.c:433
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:hlist_bl_first_rcu include/linux/rculist_bl.h:24 [inline]
RIP: 0010:__d_lookup+0xdc/0x4c0 fs/dcache.c:2483
Code: 89 c6 e8 a7 2e 97 ff 85 db 58 0f 85 d9 01 00 00 e8 79 32 97 ff 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 <0f> 85 ab 03 00 00 49 8b 5d 00 e8 b5 6e 1f 08 31 ff 89 c5 89 c6 e8
RSP: 0018:ffffc900031cfa00 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 1ffff9200008bc38 RSI: ffffffff81ecf3f7 RDI: 0000000000000001
RBP: ffffc900031cfb58 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 000000004bc38b94
R13: ffffc9000045e1c0 R14: ffff88804e5e31a0 R15: ffffc900031cfb68
 lookup_fast+0x170/0x520 fs/namei.c:1648
 walk_component+0x5e/0x5a0 fs/namei.c:1994
 lookup_last fs/namei.c:2455 [inline]
 path_lookupat+0x1ba/0x840 fs/namei.c:2479
 filename_lookup+0x1d2/0x590 fs/namei.c:2508
 vfs_statx+0x14c/0x430 fs/stat.c:238
 vfs_fstatat+0x90/0xb0 fs/stat.c:276
 __do_sys_newfstatat+0x8a/0x110 fs/stat.c:446
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f24e9b165f4
RSP: 002b:00007ffe15617dc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 000055a9d7015460 RCX: 00007f24e9b165f4
RDX: 00007ffe15617dd8 RSI: 00007ffe15618268 RDI: 00000000ffffff9c
RBP: 00007ffe15617e68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe15618268
R13: 00007ffe15617dd8 R14: 000055a9d6ff4910 R15: 0000000000000000
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10499 jiffies! g30153 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=32333
rcu: rcu_preempt kthread starved for 10500 jiffies! g30153 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:28816 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0x1d15/0x5790 kernel/sched/core.c:6669
 schedule+0xde/0x1a0 kernel/sched/core.c:6745
 schedule_timeout+0x14e/0x2b0 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x190/0x910 kernel/rcu/tree.c:1609
 rcu_gp_kthread+0x23a/0x360 kernel/rcu/tree.c:1808
 kthread+0x33e/0x440 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </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: 8696 Comm: syz-executor.0 Not tainted 6.3.0-next-20230424-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
RIP: 0010:__lock_acquire+0xf0f/0x5df0 kernel/locking/lockdep.c:5044
Code: 7b f7 ff ff 48 63 5c 24 10 be 08 00 00 00 48 89 d8 48 c1 e8 06 48 8d 3c c5 40 bc 51 91 e8 59 71 71 00 48 0f a3 1d 11 3c ec 0f <0f> 82 f9 f9 ff ff e8 16 60 aa 02 85 c0 0f 84 1b ff ff ff 48 c7 c0
RSP: 0018:ffffc90000007bd8 EFLAGS: 00000047
RAX: 0000000000000001 RBX: 0000000000000066 RCX: ffffffff81658027
RDX: fffffbfff22a378a RSI: 0000000000000008 RDI: ffffffff9151bc48
RBP: 0000000000000040 R08: 0000000000000000 R09: ffffffff9151bc4f
R10: fffffbfff22a3789 R11: 0000000000000000 R12: ffff8880240c28b0
R13: ffff8880240c1dc0 R14: 0000000000000001 R15: 0000000000000040
FS:  00007f25471a8700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f287f459bd0 CR3: 000000001c9f8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 lock_acquire.part.0+0x11c/0x370 kernel/locking/lockdep.c:5691
 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
 _raw_spin_lock_irq+0x36/0x50 kernel/locking/spinlock.c:170
 __run_hrtimer kernel/time/hrtimer.c:1689 [inline]
 __hrtimer_run_queues+0x23e/0xa30 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x320/0x7b0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0x14a/0x430 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x92/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x3c/0x70 kernel/locking/spinlock.c:194
Code: 74 24 10 e8 26 0c 56 f7 48 89 ef e8 0e 7a 56 f7 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 <e8> 7f 48 48 f7 65 8b 05 40 ed f3 75 85 c0 74 0a 5b 5d c3 e8 7c f2
RSP: 0018:ffffc9000579fcb0 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff22a38a6
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff8880b982b840 R08: 0000000000000001 R09: ffffffff9151bc47
R10: 0000000000000001 R11: 0000000000000002 R12: fb97c54a06ac1c5d
R13: 0000000000000000 R14: 0000007126c572a4 R15: dffffc0000000000
 clock_was_set+0x610/0x810 kernel/time/hrtimer.c:970
 do_settimeofday64 kernel/time/timekeeping.c:1345 [inline]
 do_settimeofday64+0x3c4/0x5d0 kernel/time/timekeeping.c:1312
 do_sys_settimeofday64 kernel/time/time.c:195 [inline]
 do_sys_settimeofday64+0x1e2/0x270 kernel/time/time.c:169
 __do_sys_clock_settime kernel/time/posix-timers.c:1092 [inline]
 __se_sys_clock_settime kernel/time/posix-timers.c:1080 [inline]
 __x64_sys_clock_settime+0x1a5/0x280 kernel/time/posix-timers.c:1080
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f254648c169
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:00007f25471a8168 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3
RAX: ffffffffffffffda RBX: 00007f25465abf80 RCX: 00007f254648c169
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000000
RBP: 00007f25464e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdd40e325f R14: 00007f25471a8300 R15: 0000000000022000
 </TASK>