syzbot


panic: vwakeup: neg numoutput (2)

Status: upstream: reported on 2025/12/20 08:33
Reported-by: syzbot+4e01044a63bd75140335@syzkaller.appspotmail.com
First crash: 122d, last: 39d
Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd panic: vwakeup: neg numoutput 2 2 622d 702d 0/3 auto-obsoleted due to no activity on 2024/11/05 14:45

Sample crash report:
panic: vwakeup: neg numoutput
Starting stack trace...
panic(ffffffff833e8157) at panic+0x1ba sys/kern/subr_prf.c:229
vwakeup(fffffd8063e385e8) at vwakeup+0x17c
biodone(fffffd806cef4c08) at biodone+0x121 sys/kern/vfs_bio.c:1290
sd_buf_done(fffffd806d107380) at sd_buf_done+0x2de sys/scsi/sd.c:772
vioscsi_vq_done(ffff8000000a2618) at vioscsi_vq_done+0xe1 sys/dev/pv/vioscsi.c:-1
intr_handler(ffff80003c945bf0,ffff80000029af80) at intr_handler+0xcb sys/arch/amd64/amd64/intr.c:-1
Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f
end of kernel
end trace frame: 0x79a31bb13f90, count: 250
End of stack trace.

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/03/13 01:34 openbsd fd49698d88e5 2f7f359d .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main panic: vwakeup: neg numoutput
2025/12/20 08:32 openbsd ddef1afac53e e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore panic: vwakeup: neg numoutput
* Struck through repros no longer work on HEAD.