INFO: rcu_sched detected stalls on CPUs/tasks:
	(detected by 0, t=125002 jiffies, g=10259, c=10258, q=155)
All QSes seen, last rcu_sched kthread activity 125002 (4294884725-4294759723), jiffies_till_next_fqs=3, root ->qsmask 0x0
syz-executor5   R  running task    21600  4548   4540 0x00000008
Call Trace:
 <IRQ>
 sched_show_task.cold.86+0x27a/0x301 kernel/sched/core.c:5321
 print_other_cpu_stall.cold.79+0x92f/0x9d2 kernel/rcu/tree.c:1481
 check_cpu_stall.isra.61+0x706/0xf50 kernel/rcu/tree.c:1599
 __rcu_pending kernel/rcu/tree.c:3356 [inline]
 rcu_pending kernel/rcu/tree.c:3401 [inline]
 rcu_check_callbacks+0x21b/0xad0 kernel/rcu/tree.c:2763
 update_process_times+0x2d/0x70 kernel/time/timer.c:1636
 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164
 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274
 __run_hrtimer kernel/time/hrtimer.c:1398 [inline]
 __hrtimer_run_queues+0x3e3/0x10a0 kernel/time/hrtimer.c:1460
 hrtimer_interrupt+0x2f3/0x750 kernel/time/hrtimer.c:1518
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1025 [inline]
 smp_apic_timer_interrupt+0x15d/0x710 arch/x86/kernel/apic/apic.c:1050
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:863
 </IRQ>
RIP: 0010:check_memory_region+0xc3/0x1b0 mm/kasan/kasan.c:268
RSP: 0018:ffff88018396f930 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffed003b49d779 RBX: ffff8801da4ebbc0 RCX: ffffffff815e1a5e
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801da4ebbc0
RBP: ffff88018396f938 R08: ffffed003b49d779 R09: ffffed003b49d778
R10: ffffed003b49d778 R11: ffff8801da4ebbc3 R12: 1ffff1003072df29
R13: dffffc0000000000 R14: ffff88018396f9a8 R15: ffff88018396fb50
 atomic_read include/asm-generic/atomic-instrumented.h:21 [inline]
 queued_spin_is_locked include/asm-generic/qspinlock.h:36 [inline]
 debug_spin_unlock kernel/locking/spinlock_debug.c:98 [inline]
 do_raw_spin_unlock+0x9e/0x2e0 kernel/locking/spinlock_debug.c:134
 __raw_spin_unlock include/linux/spinlock_api_smp.h:151 [inline]
 _raw_spin_unlock+0x22/0x30 kernel/locking/spinlock.c:176
 spin_unlock include/linux/spinlock.h:350 [inline]
 d_walk+0x75f/0xc80 fs/dcache.c:1332
 shrink_dcache_parent+0x179/0x230 fs/dcache.c:1486
 vfs_rmdir+0x202/0x470 fs/namei.c:3850
 do_rmdir+0x523/0x610 fs/namei.c:3911
 __do_sys_rmdir fs/namei.c:3929 [inline]
 __se_sys_rmdir fs/namei.c:3927 [inline]
 __x64_sys_rmdir+0x36/0x40 fs/namei.c:3927
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x455777
RSP: 002b:00007ffc670e6928 EFLAGS: 00000206 ORIG_RAX: 0000000000000054
RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 0000000000455777
RDX: 0000000000000000 RSI: 00007ffc670e86d0 RDI: 00007ffc670e86d0
RBP: 00007ffc670e86d0 R08: 0000000000000000 R09: 0000000000000001
R10: 000000000000000a R11: 0000000000000206 R12: 000000000219b940
R13: 0000000000000000 R14: 000000000000011d R15: 0000000000016852
rcu_sched kthread starved for 125002 jiffies! g10259 c10258 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0
RCU grace-period kthread stack dump:
rcu_sched       R  running task    23896     9      2 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:2859 [inline]
 __schedule+0x801/0x1e30 kernel/sched/core.c:3501
 schedule+0xef/0x430 kernel/sched/core.c:3545
 schedule_timeout+0x138/0x240 kernel/time/timer.c:1801
 rcu_gp_kthread+0x6b5/0x1940 kernel/rcu/tree.c:2231
 kthread+0x345/0x410 kernel/kthread.c:240
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412