rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 1, t=10502 jiffies, g=135273, q=10)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4295030648-4295020146), jiffies_till_next_fqs=1, root ->qsmask 0x0
syz-executor.5  R  running task    26736  8510   8705 0x00004000
Call Trace:
 <IRQ>
 sched_show_task /kernel/sched/core.c:5755 [inline]
 sched_show_task.cold+0x2ed/0x34e /kernel/sched/core.c:5730
 print_other_cpu_stall /kernel/rcu/tree_stall.h:410 [inline]
 check_cpu_stall /kernel/rcu/tree_stall.h:536 [inline]
 rcu_pending /kernel/rcu/tree.c:2736 [inline]
 rcu_sched_clock_irq.cold+0xac8/0xc13 /kernel/rcu/tree.c:2183
 update_process_times+0x32/0x80 /kernel/time/timer.c:1639
 tick_sched_handle+0xa2/0x190 /kernel/time/tick-sched.c:167
 tick_sched_timer+0x53/0x140 /kernel/time/tick-sched.c:1296
 __run_hrtimer /kernel/time/hrtimer.c:1389 [inline]
 __hrtimer_run_queues+0x364/0xe40 /kernel/time/hrtimer.c:1451
 hrtimer_interrupt+0x314/0x770 /kernel/time/hrtimer.c:1509
 local_apic_timer_interrupt /arch/x86/kernel/apic/apic.c:1068 [inline]
 smp_apic_timer_interrupt+0x160/0x610 /arch/x86/kernel/apic/apic.c:1093
 apic_timer_interrupt+0xf/0x20 /arch/x86/entry/entry_64.S:828
 </IRQ>
RIP: 0010:arch_local_irq_restore /./arch/x86/include/asm/paravirt.h:767 [inline]
RIP: 0010:lock_is_held_type+0x272/0x320 /kernel/locking/lockdep.c:4453
Code: ff df c7 83 94 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 88 00 00 00 48 83 3d b6 be 7a 07 00 74 31 48 8b 7d c0 57 9d <0f> 1f 44 00 00 48 83 c4 20 44 89 e0 5b 41 5c 41 5d 41 5e 41 5f 5d
RSP: 0018:ffff888057007390 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff11a5e22 RBX: ffff888090d40680 RCX: ffff888090d40f18
RDX: dffffc0000000000 RSI: ffffffff88dac080 RDI: 0000000000000282
RBP: ffff8880570073d8 R08: ffff888090d40680 R09: ffffed1015d26c7c
R10: ffffed1015d26c7b R11: ffff8880ae9363db R12: 0000000000000001
R13: ffff888090d40f68 R14: ffffffff88dac080 R15: 0000000000000002
 lock_is_held /./include/linux/lockdep.h:365 [inline]
 rcu_read_lock_held /kernel/rcu/update.c:270 [inline]
 rcu_read_lock_held+0xa3/0xd0 /kernel/rcu/update.c:262
 task_css /./include/linux/cgroup.h:486 [inline]
 wb_find_current /./include/linux/backing-dev.h:272 [inline]
 wb_get_create_current /./include/linux/backing-dev.h:302 [inline]
 balance_dirty_pages_ratelimited+0x132c/0x1f00 /mm/page-writeback.c:1874
 generic_perform_write+0x364/0x540 /mm/filemap.c:3366
 __generic_file_write_iter+0x25e/0x630 /mm/filemap.c:3459
 ext4_file_write_iter+0x373/0x1430 /fs/ext4/file.c:270
 call_write_iter /./include/linux/fs.h:1870 [inline]
 do_iter_readv_writev+0x5f8/0x8f0 /fs/read_write.c:693
 do_iter_write /fs/read_write.c:970 [inline]
 do_iter_write+0x184/0x610 /fs/read_write.c:951
 vfs_iter_write+0x77/0xb0 /fs/read_write.c:983
 iter_file_splice_write+0x66d/0xbe0 /fs/splice.c:746
 do_splice_from /fs/splice.c:848 [inline]
 direct_splice_actor+0x123/0x190 /fs/splice.c:1020
 splice_direct_to_actor+0x366/0x970 /fs/splice.c:975
 do_splice_direct+0x1da/0x2a0 /fs/splice.c:1063
 do_sendfile+0x597/0xd00 /fs/read_write.c:1464
 __do_sys_sendfile64 /fs/read_write.c:1525 [inline]
 __se_sys_sendfile64 /fs/read_write.c:1511 [inline]
 __x64_sys_sendfile64+0x1dd/0x220 /fs/read_write.c:1511
 do_syscall_64+0xfd/0x6a0 /arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459819
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ff0da569c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000459819
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000007
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 00008000fffffffe R11: 0000000000000246 R12: 00007ff0da56a6d4
R13: 00000000004c6e87 R14: 00000000004dc238 R15: 00000000ffffffff
rcu: rcu_preempt kthread starved for 10502 jiffies! g135273 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: RCU grace-period kthread stack dump:
rcu_preempt     R  running task    29112    10      2 0x80004000
Call Trace:
 context_switch /kernel/sched/core.c:3254 [inline]
 __schedule+0x755/0x1580 /kernel/sched/core.c:3880
 schedule+0xa8/0x270 /kernel/sched/core.c:3944
 schedule_timeout+0x486/0xc50 /kernel/time/timer.c:1807
 rcu_gp_fqs_loop /kernel/rcu/tree.c:1611 [inline]
 rcu_gp_kthread+0x9b2/0x18c0 /kernel/rcu/tree.c:1768
 kthread+0x361/0x430 /kernel/kthread.c:255
 ret_from_fork+0x24/0x30 /arch/x86/entry/entry_64.S:352