rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (1 ticks this GP) idle=058c/1/0x4000000000000000 softirq=57960/57960 fqs=0
	(detected by 1, t=10502 jiffies, g=72069, q=288 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 14305 Comm: syz.5.2670 Tainted: G        W          6.1.120-syzkaller-00773-g52f863f820fd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4739 [inline]
RIP: 0010:__lock_acquire+0x63e/0x1f80 kernel/locking/lockdep.c:4999
Code: 9d 13 00 00 41 8b 2c 24 41 89 ec ff cd 0f 88 a2 00 00 00 89 eb 83 fd 31 73 79 48 8d 04 9b 48 8d 5c c6 20 48 89 d8 48 c1 e8 03 <0f> b6 04 10 84 c0 75 18 8b 1b 41 0f b6 04 17 84 c0 75 31 41 33 1e
RSP: 0018:ffffc90000007a60 EFLAGS: 00000806
RAX: 1ffff11004bfac88 RBX: ffff888025fd6440 RCX: 0000000000000002
RDX: dffffc0000000000 RSI: ffff888025fd6420 RDI: ffffffff9124e3d8
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff2249c7c
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffff888025fd5940 R14: ffff888025fd6468 R15: 1ffff11004bfac8d
FS:  00007fca1e0556c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020003c80 CR3: 00000000605c3000 CR4: 00000000003506f0
DR0: 0000000000002800 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:351 [inline]
 advance_sched+0x47/0x970 net/sched/sch_taprio.c:700
 __run_hrtimer kernel/time/hrtimer.c:1689 [inline]
 __hrtimer_run_queues+0x5e5/0xe50 kernel/time/hrtimer.c:1753
 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1815
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1107 [inline]
 __sysvec_apic_timer_interrupt+0x158/0x5b0 arch/x86/kernel/apic/apic.c:1124
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [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 b2 87 25 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 37 f1 a1 f6 65 8b 05 f8 d0 45 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc900052afb60 EFLAGS: 00000206
RAX: 9592b16515b1e500 RBX: 1ffff92000a55f70 RCX: ffffffff816b123a
RDX: dffffc0000000000 RSI: ffffffff8b0c0360 RDI: 0000000000000001
RBP: ffffc900052afbf0 R08: dffffc0000000000 R09: fffffbfff2249c4d
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff92000a55f6c R14: ffffc900052afb80 R15: 0000000000000246
 clock_was_set+0x177/0x900 kernel/time/hrtimer.c:971
 do_settimeofday64+0x673/0x7e0 kernel/time/timekeeping.c:1345
 __do_sys_clock_settime kernel/time/posix-timers.c:1124 [inline]
 __se_sys_clock_settime kernel/time/posix-timers.c:1112 [inline]
 __x64_sys_clock_settime+0x232/0x270 kernel/time/posix-timers.c:1112
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fca1d185d19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fca1e055038 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3
RAX: ffffffffffffffda RBX: 00007fca1d375fa0 RCX: 00007fca1d185d19
RDX: 0000000000000000 RSI: 0000000020003c80 RDI: 0300000000000000
RBP: 00007fca1d201a20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fca1d375fa0 R15: 00007fff90810628
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g72069 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=54559
rcu: rcu_preempt kthread starved for 10502 jiffies! g72069 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:26720 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5241 [inline]
 __schedule+0x143f/0x4570 kernel/sched/core.c:6558
 schedule+0xbf/0x180 kernel/sched/core.c:6634
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1965
 rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706
 rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </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: 14305 Comm: syz.5.2670 Tainted: G        W          6.1.120-syzkaller-00773-g52f863f820fd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:validate_chain+0x59b/0x5950 kernel/locking/lockdep.c:3832
Code: 0b e9 ca fb ff ff e8 24 c7 d5 02 89 c3 e8 9d f8 fe ff 85 db 0f 85 30 04 00 00 48 c7 c0 f4 3a 9b 8e 48 c1 e8 03 42 0f b6 04 20 <84> c0 0f 85 12 42 00 00 83 3d ea d7 2f 0d 00 0f 84 09 0e 00 00 41
RSP: 0018:ffffc90000007740 EFLAGS: 00000803
RAX: 0000000000000000 RBX: ffffffff9125e720 RCX: ffffffff816b5e72
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff9124e260
RBP: ffffc900000079f0 R08: dffffc0000000000 R09: fffffbfff2249c4d
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff888025fd6490 R14: 2e4489edb596d9f6 R15: ffffffff9125e738
FS:  00007fca1e0556c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020003c80 CR3: 00000000605c3000 CR4: 00000000003506f0
DR0: 0000000000002800 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __lock_acquire+0x125b/0x1f80 kernel/locking/lockdep.c:5049
 lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
 debug_object_deactivate+0x63/0x380 lib/debugobjects.c:753
 debug_hrtimer_deactivate kernel/time/hrtimer.c:426 [inline]
 debug_deactivate+0x1d/0x280 kernel/time/hrtimer.c:482
 __run_hrtimer kernel/time/hrtimer.c:1657 [inline]
 __hrtimer_run_queues+0x334/0xe50 kernel/time/hrtimer.c:1753
 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1815
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1107 [inline]
 __sysvec_apic_timer_interrupt+0x158/0x5b0 arch/x86/kernel/apic/apic.c:1124
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [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 b2 87 25 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 37 f1 a1 f6 65 8b 05 f8 d0 45 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc900052afb60 EFLAGS: 00000206
RAX: 9592b16515b1e500 RBX: 1ffff92000a55f70 RCX: ffffffff816b123a
RDX: dffffc0000000000 RSI: ffffffff8b0c0360 RDI: 0000000000000001
RBP: ffffc900052afbf0 R08: dffffc0000000000 R09: fffffbfff2249c4d
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff92000a55f6c R14: ffffc900052afb80 R15: 0000000000000246
 clock_was_set+0x177/0x900 kernel/time/hrtimer.c:971
 do_settimeofday64+0x673/0x7e0 kernel/time/timekeeping.c:1345
 __do_sys_clock_settime kernel/time/posix-timers.c:1124 [inline]
 __se_sys_clock_settime kernel/time/posix-timers.c:1112 [inline]
 __x64_sys_clock_settime+0x232/0x270 kernel/time/posix-timers.c:1112
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fca1d185d19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fca1e055038 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3
RAX: ffffffffffffffda RBX: 00007fca1d375fa0 RCX: 00007fca1d185d19
RDX: 0000000000000000 RSI: 0000000020003c80 RDI: 0300000000000000
RBP: 00007fca1d201a20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fca1d375fa0 R15: 00007fff90810628
 </TASK>