syzbot


WARNING in dummy_timer

Status: auto-obsoleted due to no activity on 2024/07/12 08:38
Reported-by: syzbot+228133943c0be8dfe305@syzkaller.appspotmail.com
First crash: 244d, last: 244d

Sample crash report:
------------[ cut here ]------------
raw_local_irq_restore() called with IRQs enabled
WARNING: CPU: 1 PID: 3556 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x1d/0x20 kernel/locking/irqflag-debug.c:10
Modules linked in:

CPU: 1 PID: 3556 Comm: syz-fuzzer Not tainted 6.1.83-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:warn_bogus_irq_restore+0x1d/0x20 kernel/locking/irqflag-debug.c:10
Code: 24 48 c7 c7 80 bb ea 8a e8 6c f5 fd ff 80 3d af 86 d5 03 00 74 01 c3 c6 05 a5 86 d5 03 01 48 c7 c7 e0 e5 eb 8a e8 23 94 c8 f6 <0f> 0b c3 41 56 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44
RSP: 0000:ffffc90003c0f718 EFLAGS: 00010246

RAX: b56d8f3a5d834800 RBX: 1ffff92000781ee8 RCX: ffff88807e6a0000
RDX: 0000000080000101 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003c0f7b0 R08: ffffffff81527eae R09: ffffed1017324f1c
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff92000781ee4 R14: ffffc90003c0f740 R15: 0000000000000246
FS:  000000c000dc7490(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c002d23000 CR3: 000000007b8e7000 CR4: 00000000003506e0
vkms_vblank_simulate: vblank timer overrun
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
 _raw_spin_unlock_irqrestore+0x118/0x130 kernel/locking/spinlock.c:194
 dummy_timer+0x310d/0x3200
 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1474
 expire_timers kernel/time/timer.c:1519 [inline]
 __run_timers+0x67c/0x890 kernel/time/timer.c:1790
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1803
 __do_softirq+0x2e9/0xa4c kernel/softirq.c:571

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/04/03 08:37 linux-6.1.y e5cd595e23c1 7925100d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dummy_timer
* Struck through repros no longer work on HEAD.