rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=e21/1/0x4000000000000000 softirq=189107/189109 fqs=2227 
	(t=10502 jiffies g=304009 q=456)
NMI backtrace for cpu 1
CPU: 1 PID: 3629 Comm: syz-executor.0 Not tainted 5.17.0-rc1-syzkaller-00210-g6449520391df #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343
 print_cpu_stall kernel/rcu/tree_stall.h:604 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:688 [inline]
 rcu_pending kernel/rcu/tree.c:3919 [inline]
 rcu_sched_clock_irq.cold+0x5c/0x759 kernel/rcu/tree.c:2617
 update_process_times+0x16d/0x200 kernel/time/timer.c:1785
 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
 tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1428
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
 __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
 sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1097
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: 0f 1f 44 00 00 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 6e 51 0c f8 48 89 ef e8 26 c7 0c f8 e8 11 b2 2d f8 fb bf 01 00 00 00 <e8> 66 7a ff f7 65 8b 05 1f 7f b1 76 85 c0 74 02 5d c3 e8 8b 54 af
RSP: 0018:ffffc90000dc0e08 EFLAGS: 00000206
RAX: 0000000006351e3a RBX: ffffffff874e45f0 RCX: 1ffffffff2001e96
RDX: 0000000000000000 RSI: 0000000000000103 RDI: 0000000000000001
RBP: ffff8880b9d28480 R08: 0000000000000001 R09: ffffffff8ffd39df
R10: 0000000000000001 R11: 0000000000000000 R12: ffffc90000dc0e98
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8880b9d28480
 expire_timers kernel/time/timer.c:1465 [inline]
 __run_timers.part.0+0x66c/0xa30 kernel/time/timer.c:1734
 __run_timers kernel/time/timer.c:1715 [inline]
 run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:check_kcov_mode+0x2c/0x40 kernel/kcov.c:177
Code: 05 19 17 8a 7e 89 c2 81 e2 00 01 00 00 a9 00 01 ff 00 74 10 31 c0 85 d2 74 15 8b 96 a4 15 00 00 85 d2 74 0b 8b 86 80 15 00 00 <39> f8 0f 94 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 31 c0
RSP: 0018:ffffc9000287f7f0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 800000007b509007 RCX: 0000000000000008
RDX: 0000000000000000 RSI: ffff888079243a00 RDI: 0000000000000003
RBP: 0000000000000018 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff81af0467 R11: 0000000000000000 R12: 0000000000000008
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
 write_comp_data kernel/kcov.c:221 [inline]
 __sanitizer_cov_trace_const_cmp8+0x1d/0x70 kernel/kcov.c:294
 copy_present_pte mm/memory.c:976 [inline]
 copy_pte_range mm/memory.c:1074 [inline]
 copy_pmd_range mm/memory.c:1160 [inline]
 copy_pud_range mm/memory.c:1197 [inline]
 copy_p4d_range mm/memory.c:1221 [inline]
 copy_page_range+0xfb7/0x42b0 mm/memory.c:1294
 dup_mmap kernel/fork.c:612 [inline]
 dup_mm+0xa4e/0x13e0 kernel/fork.c:1451
 copy_mm kernel/fork.c:1503 [inline]
 copy_process+0x71f8/0x7300 kernel/fork.c:2164
 kernel_clone+0xe7/0xab0 kernel/fork.c:2555
 __do_sys_clone+0xc8/0x110 kernel/fork.c:2672
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f246a6f364b
Code: Unable to access opcode bytes at RIP 0x7f246a6f3621.
RSP: 002b:00007ffe9aff2db0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f246a6f364b
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 00005555568a7400
R10: 00005555568a76d0 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffe9aff2e90
 </TASK>
----------------
Code disassembly (best guess):
   0:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   5:	55                   	push   %rbp
   6:	48 8b 74 24 08       	mov    0x8(%rsp),%rsi
   b:	48 89 fd             	mov    %rdi,%rbp
   e:	48 83 c7 18          	add    $0x18,%rdi
  12:	e8 6e 51 0c f8       	callq  0xf80c5185
  17:	48 89 ef             	mov    %rbp,%rdi
  1a:	e8 26 c7 0c f8       	callq  0xf80cc745
  1f:	e8 11 b2 2d f8       	callq  0xf82db235
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
* 2a:	e8 66 7a ff f7       	callq  0xf7ff7a95 <-- trapping instruction
  2f:	65 8b 05 1f 7f b1 76 	mov    %gs:0x76b17f1f(%rip),%eax        # 0x76b17f55
  36:	85 c0                	test   %eax,%eax
  38:	74 02                	je     0x3c
  3a:	5d                   	pop    %rbp
  3b:	c3                   	retq
  3c:	e8                   	.byte 0xe8
  3d:	8b                   	.byte 0x8b
  3e:	54                   	push   %rsp
  3f:	af                   	scas   %es:(%rdi),%eax