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WARNING: CPU: 0 PID: 9542 at kernel/rcu/tree_stall.h:990 rcu_check_gp_start_stall+0x2cf/0x460 kernel/rcu/tree_stall.h:990
Modules linked in:
CPU: 0 PID: 9542 Comm: syz-executor.2 Not tainted 6.8.0-syzkaller-05236-g443574b03387 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:rcu_check_gp_start_stall+0x2cf/0x460 kernel/rcu/tree_stall.h:990
Code: c7 c0 14 50 94 be 04 00 00 00 e8 9c 33 7c 00 b8 01 00 00 00 87 05 c1 0d d4 12 85 c0 0f 85 1a ff ff ff 48 c7 c0 40 65 13 8e 90 <0f> 0b 90 49 39 c7 74 47 48 c7 c0 9c e1 86 8f 48 c1 e8 03 42 0f b6
RSP: 0018:ffffc90000007bd8 EFLAGS: 00010046
RAX: ffffffff8e136540 RBX: 00000000fffff350 RCX: ffffffff817c06f4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff945014c0
RBP: ffffc90000007e30 R08: 0000000000000003 R09: fffffbfff28a0298
R10: dffffc0000000000 R11: fffffbfff28a0298 R12: dffffc0000000000
R13: ffff8880b943f040 R14: 0000000000000246 R15: ffffffff8e136540
FS: 000055556afc4480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30933000 CR3: 000000002a494000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
rcu_core+0x694/0x1830 kernel/rcu/tree.c:2466
__do_softirq+0x2bc/0x943 kernel/softirq.c:554
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu+0xf2/0x1c0 kernel/softirq.c:633
irq_exit_rcu+0x9/0x30 kernel/softirq.c:645
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
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:86 [inline]
RIP: 0010:kvm_wait+0x250/0x2c0 arch/x86/kernel/kvm.c:1059
Code: 3b 45 0f b6 f6 44 89 ff 44 89 f6 e8 0a 09 55 00 e8 25 38 5c 00 45 38 f7 75 15 66 90 e8 79 08 55 00 0f 00 2d a2 47 68 0a fb f4 50 fe ff ff e8 66 08 55 00 fb e9 45 fe ff ff 89 d9 80 e1 07 38
RSP: 0018:ffffc9000e1dfb20 EFLAGS: 000002d3
RAX: ffffffff813fe7f7 RBX: ffff88801d0563f8 RCX: ffff88805e90bc00
RDX: 0000000000000000 RSI: ffffffff8baac220 RDI: ffffffff8bfec6e0
RBP: ffffc9000e1dfbf0 R08: ffffffff92cc753f R09: 1ffffffff2598ea7
R10: dffffc0000000000 R11: fffffbfff2598ea8 R12: 1ffff92001c3bf68
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:470 [inline]
__pv_queued_spin_lock_slowpath+0x6ff/0xc60 kernel/locking/qspinlock.c:511
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:653
dput+0x18a/0x2b0 fs/dcache.c:843
__fput+0x678/0x8a0 fs/file_table.c:431
__do_sys_close fs/open.c:1557 [inline]
__se_sys_close fs/open.c:1542 [inline]
__x64_sys_close+0x7f/0x110 fs/open.c:1542
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f20a287cd9a
Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24
RSP: 002b:00007fff52ba6550 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f20a287cd9a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007f20a29ad980 R08: 0000001b30f20000 R09: 00000000000000e5
R10: 0000000081c340f6 R11: 0000000000000293 R12: 0000000000028493
R13: 000000000002829f R14: 00007fff52ba6710 R15: 00007f20a2834cb0
----------------
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 0a 09 55 00 call 0x55091a
10: e8 25 38 5c 00 call 0x5c383a
15: 45 38 f7 cmp %r14b,%r15b
18: 75 15 jne 0x2f
1a: 66 90 xchg %ax,%ax
1c: e8 79 08 55 00 call 0x55089a
21: 0f 00 2d a2 47 68 0a verw 0xa6847a2(%rip) # 0xa6847ca
28: fb sti
29: f4 hlt
* 2a: e9 50 fe ff ff jmp 0xfffffe7f <-- trapping instruction
2f: e8 66 08 55 00 call 0x55089a
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