rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 0, t=10502 jiffies, g=208149, q=502)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4295062084-4295051582), jiffies_till_next_fqs=1, root ->qsmask 0x0
syz-executor.2  R  running task    27320 15855   8881 0x00004008
Call Trace:
 <IRQ>
 sched_show_task+0x411/0x560 kernel/sched/core.c:5952
 print_other_cpu_stall kernel/rcu/tree_stall.h:430 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:558 [inline]
 rcu_pending kernel/rcu/tree.c:3030 [inline]
 rcu_sched_clock_irq+0x188c/0x1aa0 kernel/rcu/tree.c:2276
 update_process_times+0x12d/0x180 kernel/time/timer.c:1726
 tick_sched_handle kernel/time/tick-sched.c:171 [inline]
 tick_sched_timer+0x263/0x420 kernel/time/tick-sched.c:1314
 __run_hrtimer kernel/time/hrtimer.c:1517 [inline]
 __hrtimer_run_queues+0x3f3/0x840 kernel/time/hrtimer.c:1579
 hrtimer_interrupt+0x37c/0xda0 kernel/time/hrtimer.c:1641
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1119 [inline]
 smp_apic_timer_interrupt+0x109/0x280 arch/x86/kernel/apic/apic.c:1144
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:752 [inline]
RIP: 0010:lock_release+0x4c4/0x710 kernel/locking/lockdep.c:4505
Code: 03 80 3c 18 00 74 0c 48 c7 c7 10 d3 2a 89 e8 43 4b 58 00 48 83 3d 7b e4 ce 07 00 0f 84 28 02 00 00 48 8b bd 78 ff ff ff 57 9d <0f> 1f 44 00 00 65 48 8b 04 25 28 00 00 00 48 3b 45 d0 0f 85 09 02
RSP: 0018:ffffc90000007cb8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff1255a62 RBX: dffffc0000000000 RCX: dffffc0000000000
RDX: ffff88802bd72e10 RSI: ffff88802bd72e38 RDI: 0000000000000282
RBP: ffffc90000007d40 R08: dffffc0000000000 R09: fffffbfff12d36e5
R10: fffffbfff12d36e5 R11: 0000000000000000 R12: ffff88802bd72e14
R13: 1ffff110057ae5c2 R14: ffffffffffffffff R15: dffffc0000000000
 call_timer_fn+0xad/0x170 kernel/time/timer.c:1407
 expire_timers kernel/time/timer.c:1449 [inline]
 __run_timers+0x776/0x970 kernel/time/timer.c:1773
 run_timer_softirq+0x4a/0x90 kernel/time/timer.c:1786
 __do_softirq+0x283/0x7bd kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x227/0x230 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:546 [inline]
 smp_apic_timer_interrupt+0x113/0x280 arch/x86/kernel/apic/apic.c:1146
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829
 </IRQ>
RIP: 0010:preempt_schedule_irq+0xc0/0x150 kernel/sched/core.c:4337
Code: 63 f9 43 80 3c 37 00 74 0c 48 c7 c7 20 d3 2a 89 e8 05 28 9b f9 48 83 3d 4d c1 11 01 00 0f 84 82 00 00 00 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 66 ed ff ff 43 80 3c 34 00 74 0c 48 c7 c7 18 d3
RSP: 0018:ffffc90019107d38 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: ffff88802bd72e14 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000e9cf000 RSI: 000000000003ffff RDI: ffff88802bd72dc4
RBP: ffffc90019107d58 R08: ffff88802bd72dd8 R09: ffffed1015d47004
R10: ffffed1015d47004 R11: 0000000000000000 R12: 1ffffffff1255a63
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffffffff1255a64
 retint_kernel+0x1b/0x2b
RIP: 0010:__might_fault+0x4c/0x160 mm/memory.c:4625
Code: 65 4c 8b 24 25 c0 1d 02 00 49 8d 9c 24 d0 14 00 00 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 47 88 0e 00 48 8b 1b <48> c7 c7 ff ff ff ff 48 89 de e8 45 66 d1 ff 48 83 fb ff 74 34 49
RSP: 0018:ffffc90019107e18 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 1ffff110057ae74a RBX: 00007ffffffff000 RCX: 0000000000040000
RDX: ffffc9000e9cf000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc90019107e40 R08: ffffffff8168e60d R09: fffffbfff12d36e5
R10: fffffbfff12d36e5 R11: 0000000000000000 R12: ffff88802bd72580
R13: dffffc0000000000 R14: 000000000000001a R15: ffffffff88f0dbff
 _copy_to_user+0x2c/0x150 lib/usercopy.c:26
 copy_to_user include/linux/uaccess.h:152 [inline]
 put_timespec64+0xb2/0xf0 kernel/time/time.c:855
 __do_sys_clock_gettime kernel/time/posix-timers.c:1093 [inline]
 __se_sys_clock_gettime kernel/time/posix-timers.c:1081 [inline]
 __x64_sys_clock_gettime+0x169/0x1b0 kernel/time/posix-timers.c:1081
 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45f4fa
Code: 25 18 00 00 00 00 74 01 f0 48 0f b1 3d 4f 94 82 00 48 39 c2 75 da f3 c3 0f 1f 84 00 00 00 00 00 48 63 ff b8 e4 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 06 f3 c3 0f 1f 40 00 48 c7 c2 d4 ff ff ff f7
RSP: 002b:00007f5771968c58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e4
RAX: ffffffffffffffda RBX: 000000000076bf28 RCX: 000000000045f4fa
RDX: 0000000000000000 RSI: 00007f5771968c60 RDI: 0000000000000001
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000076bf2c
R13: 0000000000000aae R14: 00000000004d67d0 R15: 000000000076bf2c
rcu: rcu_preempt kthread starved for 10502 jiffies! g208149 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: RCU grace-period kthread stack dump:
rcu_preempt     R  running task    28792    10      2 0x80004000
Call Trace:
 context_switch kernel/sched/core.c:3380 [inline]
 __schedule+0x87f/0xcd0 kernel/sched/core.c:4080
 schedule+0x188/0x210 kernel/sched/core.c:4154
 schedule_timeout+0x14f/0x240 kernel/time/timer.c:1895
 rcu_gp_fqs_loop kernel/rcu/tree.c:1658 [inline]
 rcu_gp_kthread+0xe8d/0x17e0 kernel/rcu/tree.c:1818
 kthread+0x332/0x350 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352