rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (0 ticks this GP) idle=4c9/1/0x4000000000000000 softirq=143530/143530 fqs=0 
	(detected by 1, t=10505 jiffies, g=216597, q=77)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3608 Comm: syz-executor.1 Not tainted 5.18.0-rc4-syzkaller-00291-g8013d1d3d2e3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_acquire+0x24a/0x56c0 kernel/locking/lockdep.c:4963
Code: 28 0f b7 4c 24 10 49 8d 44 24 20 48 89 c2 48 89 44 24 38 66 81 e1 ff 1f 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 14 02 <84> d2 74 09 80 fa 03 0f 8e 3d 13 00 00 41 0f b7 44 24 20 49 8d 7c
RSP: 0000:ffffc90000007be0 EFLAGS: 00000802
RAX: dffffc0000000000 RBX: ffff8880b9c2a5d8 RCX: 0000000000000058
RDX: 0000000000000000 RSI: 00000000000004f5 RDI: ffff88807ed2ace0
RBP: 0000000000000000 R08: 1ffff1100fda559c R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88807ed2ace8
R13: ffff88807ed2a1c0 R14: 0000000000000000 R15: 0000000000000001
FS:  00005555568fe400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1ec02d53a5 CR3: 0000000057b1e000 CR4: 00000000003506f0
Call Trace:
 <IRQ>
 lock_acquire kernel/locking/lockdep.c:5641 [inline]
 lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5606
 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
 _raw_spin_lock_irq+0x32/0x50 kernel/locking/spinlock.c:170
 __run_hrtimer kernel/time/hrtimer.c:1689 [inline]
 __hrtimer_run_queues+0x243/0xe50 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+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:check_kcov_mode+0x9/0x40 kernel/kcov.c:166
Code: 59 fe ff ff 48 8b 7c 24 08 e8 83 fb 4a 00 e9 61 fd ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc 65 8b 05 19 0f 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
RSP: 0000:ffffc9000310f7f8 EFLAGS: 00000206
RAX: 0000000080000002 RBX: 800000005fb08007 RCX: 000000000000009f
RDX: 0000000080000002 RSI: ffff88807ed2a1c0 RDI: 0000000000000003
RBP: 0000000000000010 R08: 000000000000007f R09: ffffea00017ec237
R10: ffffffff81b13535 R11: 0000000000000000 R12: ffffea00017ec200
R13: dffffc0000000000 R14: ffffea00017ec234 R15: ffffea00017ec200
 write_comp_data kernel/kcov.c:221 [inline]
 __sanitizer_cov_trace_const_cmp4+0x1c/0x70 kernel/kcov.c:287
 folio_get include/linux/mm.h:1164 [inline]
 get_page include/linux/mm.h:1170 [inline]
 copy_present_pte mm/memory.c:955 [inline]
 copy_pte_range mm/memory.c:1071 [inline]
 copy_pmd_range mm/memory.c:1157 [inline]
 copy_pud_range mm/memory.c:1194 [inline]
 copy_p4d_range mm/memory.c:1218 [inline]
 copy_page_range+0xe05/0x3e50 mm/memory.c:1291
 dup_mmap kernel/fork.c:701 [inline]
 dup_mm+0xa4e/0x13d0 kernel/fork.c:1521
 copy_mm kernel/fork.c:1573 [inline]
 copy_process+0x3b14/0x6fe0 kernel/fork.c:2234
 kernel_clone+0xe7/0xab0 kernel/fork.c:2639
 __do_sys_clone+0xc8/0x110 kernel/fork.c:2756
 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: 0033:0x7f1ebf2876db
Code: ed 0f 85 60 01 00 00 64 4c 8b 0c 25 10 00 00 00 45 31 c0 4d 8d 91 d0 02 00 00 31 d2 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 89 00 00 00 41 89 c5 85 c0 0f 85 90 00 00
RSP: 002b:00007fffe00353d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1ebf2876db
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 00005555568fe400
R10: 00005555568fe6d0 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007fffe00354b0
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10504 jiffies! g216597 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=112914
rcu: rcu_preempt kthread starved for 10505 jiffies! g216597 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:I stack:28344 pid:   16 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5073 [inline]
 __schedule+0xa9a/0x4cc0 kernel/sched/core.c:6388
 schedule+0xd2/0x1f0 kernel/sched/core.c:6460
 schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1884
 rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1971
 rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2144
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3608 Comm: syz-executor.1 Not tainted 5.18.0-rc4-syzkaller-00291-g8013d1d3d2e3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:match_held_lock+0xe/0xc0 kernel/locking/lockdep.c:5091
Code: 48 c7 c7 e0 46 cc 89 e8 f0 f7 bb ff e8 89 38 cc ff 31 c0 5d c3 0f 1f 80 00 00 00 00 53 48 89 fb 48 83 ec 08 48 39 77 10 74 6a <66> f7 47 22 f0 ff 74 5a 48 8b 46 08 48 89 f7 48 85 c0 74 42 8b 15
RSP: 0000:ffffc90000007dd8 EFLAGS: 00000083
RAX: 000000000000000f RBX: ffff88807ed2ac98 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8bd7f520 RDI: ffff88807ed2ac98
RBP: ffffffff8bd7f520 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff81676d1d R11: 0000000000000000 R12: ffff88807ed2a1c0
R13: ffff88807ed2ac20 R14: 00000000ffffffff R15: ffff88807ed2ac98
FS:  00005555568fe400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1ec02d53a5 CR3: 0000000057b1e000 CR4: 00000000003506f0
Call Trace:
 <IRQ>
 __lock_is_held kernel/locking/lockdep.c:5382 [inline]
 lock_is_held_type+0xa7/0x140 kernel/locking/lockdep.c:5684
 lock_is_held include/linux/lockdep.h:283 [inline]
 rcu_read_lock_sched_held+0x3a/0x70 kernel/rcu/update.c:125
 trace_hrtimer_expire_exit include/trace/events/timer.h:279 [inline]
 __run_hrtimer kernel/time/hrtimer.c:1688 [inline]
 __hrtimer_run_queues+0xa2e/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+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:check_kcov_mode+0x9/0x40 kernel/kcov.c:166
Code: 59 fe ff ff 48 8b 7c 24 08 e8 83 fb 4a 00 e9 61 fd ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc 65 8b 05 19 0f 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
RSP: 0000:ffffc9000310f7f8 EFLAGS: 00000206
RAX: 0000000080000002 RBX: 800000005fb08007 RCX: 000000000000009f
RDX: 0000000080000002 RSI: ffff88807ed2a1c0 RDI: 0000000000000003
RBP: 0000000000000010 R08: 000000000000007f R09: ffffea00017ec237
R10: ffffffff81b13535 R11: 0000000000000000 R12: ffffea00017ec200
R13: dffffc0000000000 R14: ffffea00017ec234 R15: ffffea00017ec200
 write_comp_data kernel/kcov.c:221 [inline]
 __sanitizer_cov_trace_const_cmp4+0x1c/0x70 kernel/kcov.c:287
 folio_get include/linux/mm.h:1164 [inline]
 get_page include/linux/mm.h:1170 [inline]
 copy_present_pte mm/memory.c:955 [inline]
 copy_pte_range mm/memory.c:1071 [inline]
 copy_pmd_range mm/memory.c:1157 [inline]
 copy_pud_range mm/memory.c:1194 [inline]
 copy_p4d_range mm/memory.c:1218 [inline]
 copy_page_range+0xe05/0x3e50 mm/memory.c:1291
 dup_mmap kernel/fork.c:701 [inline]
 dup_mm+0xa4e/0x13d0 kernel/fork.c:1521
 copy_mm kernel/fork.c:1573 [inline]
 copy_process+0x3b14/0x6fe0 kernel/fork.c:2234
 kernel_clone+0xe7/0xab0 kernel/fork.c:2639
 __do_sys_clone+0xc8/0x110 kernel/fork.c:2756
 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: 0033:0x7f1ebf2876db
Code: ed 0f 85 60 01 00 00 64 4c 8b 0c 25 10 00 00 00 45 31 c0 4d 8d 91 d0 02 00 00 31 d2 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 89 00 00 00 41 89 c5 85 c0 0f 85 90 00 00
RSP: 002b:00007fffe00353d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1ebf2876db
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 00005555568fe400
R10: 00005555568fe6d0 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007fffe00354b0
 </TASK>
----------------
Code disassembly (best guess):
   0:	28 0f                	sub    %cl,(%rdi)
   2:	b7 4c                	mov    $0x4c,%bh
   4:	24 10                	and    $0x10,%al
   6:	49 8d 44 24 20       	lea    0x20(%r12),%rax
   b:	48 89 c2             	mov    %rax,%rdx
   e:	48 89 44 24 38       	mov    %rax,0x38(%rsp)
  13:	66 81 e1 ff 1f       	and    $0x1fff,%cx
  18:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  1f:	fc ff df
  22:	48 c1 ea 03          	shr    $0x3,%rdx
  26:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
* 2a:	84 d2                	test   %dl,%dl <-- trapping instruction
  2c:	74 09                	je     0x37
  2e:	80 fa 03             	cmp    $0x3,%dl
  31:	0f 8e 3d 13 00 00    	jle    0x1374
  37:	41 0f b7 44 24 20    	movzwl 0x20(%r12),%eax
  3d:	49                   	rex.WB
  3e:	8d                   	.byte 0x8d
  3f:	7c                   	.byte 0x7c