rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (0 ticks this GP) idle=2d5/1/0x4000000000000002 softirq=104136/104136 fqs=0 
	(detected by 0, t=10505 jiffies, g=169193, q=19)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.15.141-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:__lock_acquire+0x12ae/0x1ff0 kernel/locking/lockdep.c:5015
Code: 48 8b 74 24 08 8b 54 24 2c 48 89 e9 e8 8b 9f 00 00 31 f6 85 c0 0f 84 a8 02 00 00 48 ba 00 00 00 00 00 fc ff df 48 8b 44 24 60 <80> 3c 10 00 48 8b 5c 24 58 74 12 48 89 df e8 9f 48 67 00 48 ba 00
RSP: 0018:ffffc90000dd0a60 EFLAGS: 00000002
RAX: 1ffff11027fcd15c RBX: ffffffff8f8c5ec0 RCX: 1ffff920001ba114
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff88813fe68000
RBP: 8344e4648cc44188 R08: dffffc0000000000 R09: fffffbfff1f79c19
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff88813fe68ae8 R14: ffff88813fe68000 R15: ffff88813fe68b10
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020003c80 CR3: 00000000745a0000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
 rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:269
 rcu_read_lock include/linux/rcupdate.h:696 [inline]
 advance_sched+0x6ce/0x940 net/sched/sch_taprio.c:769
 __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:1085 [inline]
 __sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:tick_nohz_idle_enter+0x22c/0x2f0 kernel/time/tick-sched.c:1156
Code: 00 4d 89 3c 24 42 0f b6 04 2b 84 c0 0f 85 a2 00 00 00 41 80 0e 04 e8 23 c9 e6 ff e8 6e c5 13 00 fb 48 c7 44 24 20 0e 36 e0 45 <48> 8b 44 24 18 49 c7 44 05 00 00 00 00 00 65 48 8b 04 25 28 00 00
RSP: 0018:ffffc90000d67c80 EFLAGS: 00000282
RAX: fe795ca69db8bb00 RBX: 1ffff11017365582 RCX: ffffffff913c5f03
RDX: dffffc0000000000 RSI: ffffffff8a8b0d60 RDI: ffffffff8ad87d40
RBP: ffffc90000d67d30 R08: ffffffff8186a8b0 R09: ffffffff8f5d1048
R10: ffffffff8f5d1058 R11: ffffffff8f5d1050 R12: ffff8880b9b2ac40
R13: dffffc0000000000 R14: ffff8880b9b2ac14 R15: 000001c271d07fb6
 do_idle+0xa7/0x670 kernel/sched/idle.c:280
 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:403
 start_secondary+0x371/0x500 arch/x86/kernel/smpboot.c:281
 secondary_startup_64_no_verify+0xb1/0xbb
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10504 jiffies! g169193 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=109029
rcu: rcu_preempt kthread starved for 10505 jiffies! g169193 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:26776 pid:   15 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
 schedule+0x11b/0x1f0 kernel/sched/core.c:6459
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1884
 rcu_gp_fqs_loop+0x2bf/0x1080 kernel/rcu/tree.c:1972
 rcu_gp_kthread+0xa4/0x360 kernel/rcu/tree.c:2145
 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: 0 Comm: swapper/1 Not tainted 5.15.141-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:validate_chain+0x5a2/0x5930 kernel/locking/lockdep.c:3795
Code: fd fe ff 85 db 0f 85 2a 04 00 00 48 c7 c0 04 c9 e3 8d 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85 0b 42 00 00 83 3d a2 8c 80 0c 00 <0f> 84 00 0e 00 00 41 be 01 00 00 00 48 8b 84 24 98 00 00 00 48 c7
RSP: 0018:ffffc90000dd07a0 EFLAGS: 00000002
RAX: 0000000000000000 RBX: 00000000000a4029 RCX: 1ffff920001ba114
RDX: 0000000000000001 RSI: ffff88813fe68af0 RDI: ffff88813fe68000
RBP: ffffc90000dd0a50 R08: dffffc0000000000 R09: fffffbfff1f79c19
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff88813fe68b10 R14: 8344e4648cc44188 R15: ffff88813fe68b10
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020003c80 CR3: 00000000745a0000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012
 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
 rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:269
 rcu_read_lock include/linux/rcupdate.h:696 [inline]
 advance_sched+0x6ce/0x940 net/sched/sch_taprio.c:769
 __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:1085 [inline]
 __sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:tick_nohz_idle_enter+0x22c/0x2f0 kernel/time/tick-sched.c:1156
Code: 00 4d 89 3c 24 42 0f b6 04 2b 84 c0 0f 85 a2 00 00 00 41 80 0e 04 e8 23 c9 e6 ff e8 6e c5 13 00 fb 48 c7 44 24 20 0e 36 e0 45 <48> 8b 44 24 18 49 c7 44 05 00 00 00 00 00 65 48 8b 04 25 28 00 00
RSP: 0018:ffffc90000d67c80 EFLAGS: 00000282
RAX: fe795ca69db8bb00 RBX: 1ffff11017365582 RCX: ffffffff913c5f03
RDX: dffffc0000000000 RSI: ffffffff8a8b0d60 RDI: ffffffff8ad87d40
RBP: ffffc90000d67d30 R08: ffffffff8186a8b0 R09: ffffffff8f5d1048
R10: ffffffff8f5d1058 R11: ffffffff8f5d1050 R12: ffff8880b9b2ac40
R13: dffffc0000000000 R14: ffff8880b9b2ac14 R15: 000001c271d07fb6
 do_idle+0xa7/0x670 kernel/sched/idle.c:280
 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:403
 start_secondary+0x371/0x500 arch/x86/kernel/smpboot.c:281
 secondary_startup_64_no_verify+0xb1/0xbb
 </TASK>