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WARNING: CPU: 1 PID: 7313 at kernel/rcu/tree_stall.h:990 rcu_check_gp_start_stall+0x2cf/0x460 kernel/rcu/tree_stall.h:990
Modules linked in:
CPU: 1 PID: 7313 Comm: syz-executor.1 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:ffffc90000a08bd8 EFLAGS: 00010046
RAX: ffffffff8e136540 RBX: 00000000ffffeec6 RCX: ffffffff817c06f4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff945014c0
RBP: ffffc90000a08e30 R08: 0000000000000003 R09: fffffbfff28a0298
R10: dffffc0000000000 R11: fffffbfff28a0298 R12: dffffc0000000000
R13: ffff8880b953f040 R14: 0000000000000246 R15: ffffffff8e136540
FS: 00007f24ec4726c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f24ec472d58 CR3: 000000006a362000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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:ffffc90013a7f8a0 EFLAGS: 00000246
RAX: ffffffff813fe7f7 RBX: ffff88801d0d14c8 RCX: 0000000000040000
RDX: ffffc9000a031000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc90013a7f970 R08: ffffffff92cc753f R09: 1ffffffff2598ea7
R10: dffffc0000000000 R11: fffffbfff2598ea8 R12: 1ffff9200274ff18
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]
d_instantiate+0x64/0xa0 fs/dcache.c:1879
alloc_path_pseudo fs/file_table.c:335 [inline]
alloc_file_pseudo+0x19e/0x290 fs/file_table.c:347
__anon_inode_getfile fs/anon_inodes.c:109 [inline]
anon_inode_getfile+0xc8/0x180 fs/anon_inodes.c:147
__do_sys_perf_event_open kernel/events/core.c:12704 [inline]
__se_sys_perf_event_open+0x25e5/0x38d0 kernel/events/core.c:12416
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f24eb67de69
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f24ec4720c8 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f24eb7ac050 RCX: 00007f24eb67de69
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040
RBP: 00007f24eb6ca47a R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f24eb7ac050 R15: 00007ffd8e6744f8
----------------
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