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WARNING: CPU: 0 PID: 6258 at kernel/rcu/tree_stall.h:1010 rcu_check_gp_start_stall+0x2cf/0x460 kernel/rcu/tree_stall.h:1010
Modules linked in:
CPU: 0 UID: 0 PID: 6258 Comm: syz.4.104 Not tainted 6.12.0-rc7-syzkaller-g2c8b09ac2537 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:rcu_check_gp_start_stall+0x2cf/0x460 kernel/rcu/tree_stall.h:1010
Code: c7 c0 fa 41 9a be 04 00 00 00 e8 5c f4 83 00 b8 01 00 00 00 87 05 71 78 c6 18 85 c0 0f 85 1a ff ff ff 48 c7 c0 00 ec 93 8e 90 <0f> 0b 90 49 39 c7 74 47 48 c7 c0 0c 5e 1d 90 48 c1 e8 03 42 0f b6
RSP: 0018:ffffc90000007bd8 EFLAGS: 00010046
RAX: ffffffff8e93ec00 RBX: 00000000ffffd94f RCX: ffffffff817b8244
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff9a41fac0
RBP: ffffc90000007e30 R08: 0000000000000003 R09: fffffbfff3483f58
R10: dffffc0000000000 R11: fffffbfff3483f58 R12: dffffc0000000000
R13: dffffc0000000000 R14: 0000000000000246 R15: ffffffff8e93ec00
FS:  000055558d250500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3533a9 CR3: 0000000033698000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 rcu_core+0x650/0x17a0 kernel/rcu/tree.c:2818
 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:106 [inline]
RIP: 0010:kvm_wait+0x250/0x2c0 arch/x86/kernel/kvm.c:1064
Code: 3b 45 0f b6 f6 44 89 ff 44 89 f6 e8 8a 3d 54 00 e8 e5 03 5c 00 45 38 f7 75 15 66 90 e8 f9 3c 54 00 0f 00 2d f2 8f c7 0a fb f4 <e9> 50 fe ff ff e8 e6 3c 54 00 fb e9 45 fe ff ff 89 d9 80 e1 07 38
RSP: 0018:ffffc90017d5f9e0 EFLAGS: 000002d3
RAX: ffffffff8140a727 RBX: ffff888023534f98 RCX: ffff8880118e3c00
RDX: 0000000000000000 RSI: ffffffff8c0acda0 RDI: ffffffff8c6114e0
RBP: ffffc90017d5fab0 R08: ffffffff942d583f R09: 1ffffffff285ab07
R10: dffffc0000000000 R11: fffffbfff285ab08 R12: 1ffff92002fabf40
R13: dffffc0000000000 R14: 0000000000000003 R15: 0000000000000003
 pv_wait arch/x86/include/asm/paravirt.h:596 [inline]
 pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:466 [inline]
 __pv_queued_spin_lock_slowpath+0x8d0/0xdb0 kernel/locking/qspinlock.c:508
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:584 [inline]
 queued_spin_lock_slowpath+0x42/0x50 arch/x86/include/asm/qspinlock.h:51
 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
 do_raw_spin_lock+0x272/0x370 kernel/locking/spinlock_debug.c:116
 spin_lock include/linux/spinlock.h:351 [inline]
 lock_for_kill+0xdc/0x210 fs/dcache.c:665
 dput+0x18a/0x2b0 fs/dcache.c:855
 __fput+0x5d2/0x880 fs/file_table.c:439
 task_work_run+0x24f/0x310 kernel/task_work.c:239
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x168/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f219897e759
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff397b5388 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f2198b37a80 RCX: 00007f219897e759
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f2198b37a80 R08: 0000000000000006 R09: 00007fff397b567f
R10: 00000000003ffc2c R11: 0000000000000246 R12: 0000000000017eaa
R13: 00007fff397b5490 R14: 0000000000000032 R15: ffffffffffffffff
 </TASK>
----------------
Code disassembly (best guess):
   0:	3b 45 0f             	cmp    0xf(%rbp),%eax
   3:	b6 f6                	mov    $0xf6,%dh
   5:	44 89 ff             	mov    %r15d,%edi
   8:	44 89 f6             	mov    %r14d,%esi
   b:	e8 8a 3d 54 00       	call   0x543d9a
  10:	e8 e5 03 5c 00       	call   0x5c03fa
  15:	45 38 f7             	cmp    %r14b,%r15b
  18:	75 15                	jne    0x2f
  1a:	66 90                	xchg   %ax,%ax
  1c:	e8 f9 3c 54 00       	call   0x543d1a
  21:	0f 00 2d f2 8f c7 0a 	verw   0xac78ff2(%rip)        # 0xac7901a
  28:	fb                   	sti
  29:	f4                   	hlt
* 2a:	e9 50 fe ff ff       	jmp    0xfffffe7f <-- trapping instruction
  2f:	e8 e6 3c 54 00       	call   0x543d1a
  34:	fb                   	sti
  35:	e9 45 fe ff ff       	jmp    0xfffffe7f
  3a:	89 d9                	mov    %ebx,%ecx
  3c:	80 e1 07             	and    $0x7,%cl
  3f:	38                   	.byte 0x38