------------[ cut here ]------------
WARNING: CPU: 1 PID: 25 at kernel/rcu/tree_stall.h:990 rcu_check_gp_start_stall.part.0+0x1c4/0x4b0 kernel/rcu/tree_stall.h:990
Modules linked in:
CPU: 1 PID: 25 Comm: kworker/1:0H Not tainted 6.9.0-rc5-syzkaller-00053-ge33c4963bf53 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue:  0x0 (kblockd)
RIP: 0010:rcu_check_gp_start_stall.part.0+0x1c4/0x4b0 kernel/rcu/tree_stall.h:990
Code: 88 61 01 00 00 be 04 00 00 00 48 c7 c7 00 9f 6b 94 e8 b0 74 73 00 b8 01 00 00 00 87 05 c5 20 f6 12 85 c0 0f 85 3d 01 00 00 90 <0f> 0b 90 48 81 fd c0 bd 7b 8d 48 c7 c3 18 80 9f 8f 74 5a 48 b8 00
RSP: 0018:ffffc90000a08df0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000002904 RCX: ffffffff81757e30
RDX: fffffbfff28d73e0 RSI: 0000000000000004 RDI: ffffffff946b9f00
RBP: ffffffff8d7bbdc0 R08: 0000000000000001 R09: fffffbfff28d73e0
R10: 0000000000000003 R11: 0000000000000000 R12: 1ffffffff1a81e40
R13: 0000000000000246 R14: ffffffff8d7bbdc0 R15: ffff8880b953f952
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdc03b30d58 CR3: 0000000077dee000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 rcu_check_gp_start_stall kernel/rcu/tree_stall.h:953 [inline]
 rcu_core+0x4f2/0x16b0 kernel/rcu/tree.c:2466
 __do_softirq+0x218/0x922 kernel/softirq.c:554
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu kernel/softirq.c:633 [inline]
 irq_exit_rcu+0xb9/0x120 kernel/softirq.c:645
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:finish_task_switch.isra.0+0x220/0xcc0 kernel/sched/core.c:5283
Code: a9 0a 00 00 44 8b 0d c7 24 41 0e 45 85 c9 0f 85 c0 01 00 00 48 89 df e8 ae f8 ff ff e8 a9 81 36 00 fb 65 48 8b 1d 10 7c a5 7e <48> 8d bb f0 15 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1
RSP: 0018:ffffc900001f7b30 EFLAGS: 00000206
RAX: 000000000040c1af RBX: ffff8880176d9e00 RCX: 1ffffffff1f3e139
RDX: 0000000000000000 RSI: ffffffff8b0cae00 RDI: ffffffff8b6f6c60
RBP: ffffc900001f7b78 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8f9f4c57 R11: 0000000000000000 R12: ffff8880b953f7b8
R13: ffff888027af1e00 R14: 0000000000000000 R15: ffff8880b953ea40
 context_switch kernel/sched/core.c:5412 [inline]
 __schedule+0xf1d/0x5d00 kernel/sched/core.c:6746
 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7068
 irqentry_exit+0x36/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:preempt_count_add+0x0/0x150 kernel/sched/core.c:5861
Code: 5d c3 cc cc cc cc e8 2f 4e 7d 09 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 c7 c0 a0 8a 6b 94 55 48 ba 00 00 00 00 00 fc ff df
RSP: 0018:ffffc900001f7df8 EFLAGS: 00000202
RAX: 0000000000004008 RBX: ffff8880176d9e00 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff8b0cae00 RDI: 0000000000000001
RBP: ffffed1002edb3c0 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff8f9f4c57 R11: 0000000000000000 R12: ffff8880176d9e2c
R13: ffff8880176d9e00 R14: ffffed1002dda528 R15: fffffbfff1a81e40
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0xe0/0x350 kernel/sched/core.c:6838
 worker_thread+0x2de/0xf70 kernel/workqueue.c:3431
 kthread+0x2c1/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
----------------
Code disassembly (best guess):
   0:	a9 0a 00 00 44       	test   $0x4400000a,%eax
   5:	8b 0d c7 24 41 0e    	mov    0xe4124c7(%rip),%ecx        # 0xe4124d2
   b:	45 85 c9             	test   %r9d,%r9d
   e:	0f 85 c0 01 00 00    	jne    0x1d4
  14:	48 89 df             	mov    %rbx,%rdi
  17:	e8 ae f8 ff ff       	call   0xfffff8ca
  1c:	e8 a9 81 36 00       	call   0x3681ca
  21:	fb                   	sti
  22:	65 48 8b 1d 10 7c a5 	mov    %gs:0x7ea57c10(%rip),%rbx        # 0x7ea57c3a
  29:	7e
* 2a:	48 8d bb f0 15 00 00 	lea    0x15f0(%rbx),%rdi <-- trapping instruction
  31:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  38:	fc ff df
  3b:	48 89 fa             	mov    %rdi,%rdx
  3e:	48                   	rex.W
  3f:	c1                   	.byte 0xc1