rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...0: (0 ticks this GP) idle=8b2/1/0x4000000000000000 softirq=9345/9345 fqs=5249 
	(detected by 1, t=10502 jiffies, g=8877, q=3702)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 6876 Comm: syz-executor967 Not tainted 5.8.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:arch_local_save_flags arch/x86/include/asm/paravirt.h:765 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/paravirt.h:787 [inline]
RIP: 0010:lock_release+0xca/0x8e0 kernel/locking/lockdep.c:5019
Code: 00 44 8b 8b cc 08 00 00 45 85 c9 0f 85 e0 03 00 00 48 c7 c0 40 34 b6 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 <0f> 85 05 07 00 00 48 83 3d 78 c4 5b 08 00 0f 84 4d 05 00 00 9c 58
RSP: 0018:ffffc90000007cb0 EFLAGS: 00000046
RAX: 1ffffffff136c688 RBX: ffff8880931dc300 RCX: ffffffff866a7c13
RDX: dffffc0000000000 RSI: ffffffff866a798b RDI: ffff8880931dcbcc
RBP: 1ffff92000000f98 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff89bd62c0
R13: ffffffff866a798b R14: ffff8880a798b120 R15: 1769ee212ed3dc42
FS:  000000000227d880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000610 CR3: 00000000a75d0000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 rcu_lock_release include/linux/rcupdate.h:246 [inline]
 rcu_read_unlock include/linux/rcupdate.h:688 [inline]
 advance_sched+0x56d/0x990 net/sched/sch_taprio.c:754
 __run_hrtimer kernel/time/hrtimer.c:1524 [inline]
 __hrtimer_run_queues+0x6a9/0xfc0 kernel/time/hrtimer.c:1588
 hrtimer_interrupt+0x32a/0x930 kernel/time/hrtimer.c:1650
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline]
 __sysvec_apic_timer_interrupt+0x142/0x5e0 arch/x86/kernel/apic/apic.c:1097
 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:706
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline]
 sysvec_apic_timer_interrupt+0xb2/0xf0 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:770 [inline]
RIP: 0010:on_each_cpu+0x149/0x240 kernel/smp.c:701
Code: 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 e6 00 00 00 48 83 3d 9f da 4c 08 00 0f 84 af 00 00 00 e8 dc ef 0a 00 48 89 df 57 9d <0f> 1f 44 00 00 e8 cd ef 0a 00 bf 01 00 00 00 e8 c3 67 e6 ff 31 ff
RSP: 0018:ffffc90005807d78 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000293 RCX: 1ffffffff15635e9
RDX: ffff8880931dc300 RSI: ffffffff816959b4 RDI: 0000000000000293
RBP: 0000000000000200 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffffc90005807ed8 R15: ffffffffa0cbea01
 clock_was_set+0x18/0x20 kernel/time/hrtimer.c:876
 do_settimeofday64 kernel/time/timekeeping.c:1260 [inline]
 do_settimeofday64+0x39d/0x570 kernel/time/timekeeping.c:1226
 do_sys_settimeofday64 kernel/time/time.c:195 [inline]
 do_sys_settimeofday64+0x1de/0x260 kernel/time/time.c:169
 __do_sys_clock_settime kernel/time/posix-timers.c:1079 [inline]
 __se_sys_clock_settime kernel/time/posix-timers.c:1067 [inline]
 __x64_sys_clock_settime+0x197/0x260 kernel/time/posix-timers.c:1067
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x443859
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 fb 0f fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffd9ff81418 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443859
RDX: 0000000000443859 RSI: 0000000020000400 RDI: 0000000000000000
RBP: 00007ffd9ff81420 R08: 0000000001bbbbbb R09: 0000000001bbbbbb
R10: 0000000001bbbbbb R11: 0000000000000246 R12: 00007ffd9ff81430
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000