INFO: rcu_sched detected stalls on CPUs/tasks:
	(detected by 1, t=100002 jiffies, g=20342, c=20341, q=409)
All QSes seen, last rcu_sched kthread activity 99998 (4294976400-4294876402), jiffies_till_next_fqs=3, root ->qsmask 0x0
syz-executor6   R  running task    59456  7681   4608 0x10000008
Call Trace:
 <IRQ>
 sched_show_task+0x610/0x760 kernel/sched/core.c:5332
 print_other_cpu_stall kernel/rcu/tree.c:1441 [inline]
 check_cpu_stall kernel/rcu/tree.c:1559 [inline]
 __rcu_pending kernel/rcu/tree.c:3244 [inline]
 rcu_pending kernel/rcu/tree.c:3291 [inline]
 rcu_check_callbacks+0x2632/0x29a0 kernel/rcu/tree.c:2646
 update_process_times+0x132/0x1a0 kernel/time/timer.c:1636
 tick_sched_handle kernel/time/tick-sched.c:164 [inline]
 tick_sched_timer+0x3bf/0x520 kernel/time/tick-sched.c:1274
 __run_hrtimer kernel/time/hrtimer.c:1398 [inline]
 __hrtimer_run_queues+0xc74/0x1680 kernel/time/hrtimer.c:1460
 hrtimer_interrupt+0x451/0x13c0 kernel/time/hrtimer.c:1518
 local_apic_timer_interrupt+0x6b/0x250 arch/x86/kernel/apic/apic.c:1025
 smp_apic_timer_interrupt+0x5a/0x90 arch/x86/kernel/apic/apic.c:1053
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:868
 </IRQ>
RIP: 0010:rep_nop arch/x86/include/asm/processor.h:658 [inline]
RIP: 0010:cpu_relax arch/x86/include/asm/processor.h:663 [inline]
RIP: 0010:csd_lock_wait kernel/smp.c:108 [inline]
RIP: 0010:smp_call_function_single+0x357/0x500 kernel/smp.c:302
Code: 85 93 00 00 00 e8 89 c5 12 00 e9 be 00 00 00 8b 3a e8 fd 79 6e 00 45 85 f6 74 91 41 89 de eb 08 0f 1f 00 e8 6b c5 12 00 f3 90 <8b> 5c 24 58 4c 89 e7 e8 bd 6f 6e 00 8b 00 83 e0 01 83 e3 01 85 c0 
RSP: 0000:ffff8801a927f620 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffffffff81555f95 RBX: 0000000000000001 RCX: ffff88019499d880
RDX: 0000000000000000 RSI: aaaaaaaaaaaab000 RDI: ffffea0009f6efa0
RBP: ffff8801a927f6f8 R08: 0000000000000000 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff8117d090 R12: ffff8801a927f678
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88019499e180
 smp_call_function_many+0x672/0xe30 kernel/smp.c:434
 native_flush_tlb_others+0x4e9/0x510 arch/x86/mm/tlb.c:595
 flush_tlb_mm_range+0x358/0x490 arch/x86/mm/tlb.c:644
 flush_tlb_page arch/x86/include/asm/tlbflush.h:526 [inline]
 ptep_clear_flush+0x11c/0x1f0 mm/pgtable-generic.c:87
 wp_page_copy+0x1696/0x24f0 mm/memory.c:2538
 do_wp_page+0xe8d/0x2fb0 include/linux/spinlock_api_smp.h:152
 handle_pte_fault mm/memory.c:3990 [inline]
 __handle_mm_fault mm/memory.c:4098 [inline]
 handle_mm_fault+0x35bf/0x85e0 mm/memory.c:4135
 __do_page_fault+0xa76/0x1810 arch/x86/mm/fault.c:1397
 do_page_fault+0x98/0xd0 arch/x86/mm/fault.c:1474
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1169
RIP: 0033:0x4071ba
Code: 83 c4 28 c3 bf ea ab 4b 00 31 c0 e8 b0 9d ff ff e8 9b 22 05 00 90 66 2e 0f 1f 84 00 00 00 00 00 53 c6 07 01 48 89 fb 89 77 04 <c6> 47 39 01 48 83 c7 24 c7 47 fc 00 00 00 00 c7 07 00 00 00 00 e8 
RSP: 002b:0000000000a3e8e0 EFLAGS: 00010246
RAX: 0000000000000004 RBX: 000000000072bff0 RCX: ffffffffffffffff
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000000000072bff0
RBP: 0000000000000556 R08: 0000000000000004 R09: 0000000000a3ea30
R10: 0000000000a3e930 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000a3ea30 R14: 000000000072c014 R15: 0000000000000002
rcu_sched kthread starved for 99998 jiffies! g20342 c20341 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0
RCU grace-period kthread stack dump:
rcu_sched       R  running task    61768    10      2 0x90000000
Call Trace:
 context_switch kernel/sched/core.c:2857 [inline]
 __schedule+0x652/0x780 kernel/sched/core.c:3507
 schedule+0x1cc/0x300 kernel/sched/core.c:3551
 schedule_timeout+0x416/0x5b0 kernel/time/timer.c:1801
 rcu_gp_kthread+0x1ed1/0x3a40 kernel/rcu/tree.c:2179
 kthread+0x473/0x4b0 kernel/kthread.c:247
 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:415