rtc_cmos 00:00: Alarms can be up to one day in the future
rtc_cmos 00:00: Alarms can be up to one day in the future
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 0, t=10502 jiffies, g=124521, q=218)
rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4295025726-4295015223), jiffies_till_next_fqs=1, root ->qsmask 0x0
syz-executor.2  R  running task    27248  1453  25033 0x00000000
Call Trace:
 <IRQ>
 sched_show_task.cold+0x332/0x396 kernel/sched/core.c:5337
 print_other_cpu_stall kernel/rcu/tree.c:1430 [inline]
 check_cpu_stall kernel/rcu/tree.c:1557 [inline]
 __rcu_pending kernel/rcu/tree.c:3293 [inline]
 rcu_pending kernel/rcu/tree.c:3336 [inline]
 rcu_check_callbacks.cold+0xb37/0xe19 kernel/rcu/tree.c:2682
 update_process_times+0x2a/0x70 kernel/time/timer.c:1650
 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:168
 tick_sched_timer+0xfc/0x290 kernel/time/tick-sched.c:1278
 __run_hrtimer kernel/time/hrtimer.c:1465 [inline]
 __hrtimer_run_queues+0x3f6/0xe60 kernel/time/hrtimer.c:1527
 hrtimer_interrupt+0x326/0x9e0 kernel/time/hrtimer.c:1585
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1071 [inline]
 smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1096
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
 </IRQ>
RIP: 0010:preempt_count_sub+0x0/0x150 kernel/sched/core.c:3262
Code: 4c 8b 45 c8 48 8b 55 d0 e9 0f fc ff ff 89 4d d0 e8 15 f5 56 00 8b 4d d0 e9 88 fe ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 <48> c7 c0 60 37 24 8d 53 89 fb 48 ba 00 00 00 00 00 fc ff df 48 89
RSP: 0018:ffff888065b97808 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff13e3053 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff8880ba02b0c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888052b52240
R13: ffff888052b52240 R14: ffffffff8869e580 R15: ffff8880ba02b0c0
 __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
 _raw_spin_unlock_irq+0x5a/0x80 kernel/locking/spinlock.c:192
 rq_unlock_irq kernel/sched/sched.h:1851 [inline]
 __schedule+0x15a9/0x2040 kernel/sched/core.c:3520
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
 tty_open+0x5ff/0x990 drivers/tty/tty_io.c:2036
 chrdev_open+0x266/0x770 fs/char_dev.c:423
 do_dentry_open+0x4aa/0x1160 fs/open.c:796
 do_last fs/namei.c:3421 [inline]
 path_openat+0x793/0x2df0 fs/namei.c:3537
 do_filp_open+0x18c/0x3f0 fs/namei.c:3567
 do_sys_open+0x3b3/0x520 fs/open.c:1085
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fc5a99b0049
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc5a8325168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fc5a9ac2f60 RCX: 00007fc5a99b0049
RDX: 0000000000000000 RSI: 0000000020000000 RDI: ffffffffffffff9c
RBP: 00007fc5a9a0a08d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc6cc1ffef R14: 00007fc5a8325300 R15: 0000000000022000
rcu: rcu_preempt kthread starved for 10539 jiffies! g124521 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: RCU grace-period kthread stack dump:
rcu_preempt     R  running task    29208    10      2 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x887/0x2040 kernel/sched/core.c:3517
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
 schedule_timeout+0x4cf/0xfe0 kernel/time/timer.c:1818
 rcu_gp_kthread+0xdad/0x21c0 kernel/rcu/tree.c:2202
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
----------------
Code disassembly (best guess):
   0:	4c 8b 45 c8          	mov    -0x38(%rbp),%r8
   4:	48 8b 55 d0          	mov    -0x30(%rbp),%rdx
   8:	e9 0f fc ff ff       	jmpq   0xfffffc1c
   d:	89 4d d0             	mov    %ecx,-0x30(%rbp)
  10:	e8 15 f5 56 00       	callq  0x56f52a
  15:	8b 4d d0             	mov    -0x30(%rbp),%ecx
  18:	e9 88 fe ff ff       	jmpq   0xfffffea5
  1d:	66 66 2e 0f 1f 84 00 	data16 nopw %cs:0x0(%rax,%rax,1)
  24:	00 00 00 00
  28:	66 90                	xchg   %ax,%ax
* 2a:	48 c7 c0 60 37 24 8d 	mov    $0xffffffff8d243760,%rax <-- trapping instruction
  31:	53                   	push   %rbx
  32:	89 fb                	mov    %edi,%ebx
  34:	48 ba 00 00 00 00 00 	movabs $0xdffffc0000000000,%rdx
  3b:	fc ff df
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89