rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...0: (1 GPs behind) idle=d8d/1/0x4000000000000000 softirq=44550/44551 fqs=5244
(detected by 0, t=10502 jiffies, g=72117, q=776)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4495 Comm: kworker/1:8 Not tainted 5.16.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: rcu_gp process_srcu
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:330 [inline]
RIP: 0010:rcu_is_watching+0xd/0xa0 kernel/rcu/tree.c:1128
Code: 45 b2 8c 4c 89 e6 e8 02 1c d6 02 e9 2a ff ff ff e8 08 49 a4 08 0f 1f 84 00 00 00 00 00 41 57 41 56 53 65 83 05 bb 7e 93 7e 01 <e8> 8e 5b a4 08 89 c3 83 f8 08 73 71 49 bf 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90000dc0a60 EFLAGS: 00000006
RAX: 0000000000000001 RBX: 1ffff920001b8150 RCX: ffff888023e65700
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e004ba8
RBP: ffffc90000dc0b10 R08: dffffc0000000000 R09: fffffbfff1c00976
R10: fffffbfff1c00976 R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff920001b8174 R14: dffffc0000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff7851aa904 CR3: 0000000081c7a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
rcu_read_lock_held_common kernel/rcu/update.c:108 [inline]
rcu_read_lock_sched_held+0x6b/0x130 kernel/rcu/update.c:123
trace_lock_release+0x4f/0x150 include/trace/events/lock.h:58
lock_release+0x82/0x810 kernel/locking/lockdep.c:5650
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline]
_raw_spin_unlock_irqrestore+0x75/0x130 kernel/locking/spinlock.c:194
debug_hrtimer_deactivate kernel/time/hrtimer.c:425 [inline]
debug_deactivate kernel/time/hrtimer.c:481 [inline]
__run_hrtimer kernel/time/hrtimer.c:1653 [inline]
__hrtimer_run_queues+0x2f9/0xa60 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x3b3/0x1040 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0xf9/0x270 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+0x12/0x20
RIP: 0010:rdtsc_ordered arch/x86/include/asm/msr.h:234 [inline]
RIP: 0010:delay_tsc+0x7d/0xe0 arch/x86/lib/delay.c:72
Code: 39 f5 73 75 66 0f 1f 84 00 00 00 00 00 a8 01 75 45 f3 90 bf 01 00 00 00 e8 b0 c5 0e fd e8 cb 0c c8 05 41 39 c7 75 36 0f 01 f9 <66> 90 48 89 d5 48 c1 e5 20 48 09 c5 48 29 dd bf 01 00 00 00 e8 ba
RSP: 0018:ffffc90004037ad0 EFLAGS: 00000246
RAX: 000000009ea46960 RBX: 000001419ea4444a RCX: 0000000000000001
RDX: 0000000000000141 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 000000000000248e R08: ffffffff8445d98a R09: ffffffff8445d8e0
R10: 0000000000000009 R11: ffff888023e65700 R12: 0000000000012208
R13: 0000000000000001 R14: 0000000000002af9 R15: 0000000000000001
try_check_zero+0x35b/0x3d0 kernel/rcu/srcutree.c:702
srcu_advance_state kernel/rcu/srcutree.c:1227 [inline]
process_srcu+0x1a7/0xc60 kernel/rcu/srcutree.c:1325
process_one_work+0x850/0x1130 kernel/workqueue.c:2307
worker_thread+0xab1/0x1300 kernel/workqueue.c:2454
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
</TASK>
----------------
Code disassembly (best guess):
0: 45 b2 8c rex.RB mov $0x8c,%r10b
3: 4c 89 e6 mov %r12,%rsi
6: e8 02 1c d6 02 callq 0x2d61c0d
b: e9 2a ff ff ff jmpq 0xffffff3a
10: e8 08 49 a4 08 callq 0x8a4491d
15: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1)
1c: 00
1d: 41 57 push %r15
1f: 41 56 push %r14
21: 53 push %rbx
22: 65 83 05 bb 7e 93 7e addl $0x1,%gs:0x7e937ebb(%rip) # 0x7e937ee5
29: 01
* 2a: e8 8e 5b a4 08 callq 0x8a45bbd <-- trapping instruction
2f: 89 c3 mov %eax,%ebx
31: 83 f8 08 cmp $0x8,%eax
34: 73 71 jae 0xa7
36: 49 bf 00 00 00 00 00 movabs $0xdffffc0000000000,%r15
3d: fc ff df