syzbot


panic: softclock: invalid to_clock: -ADDR (3)

Status: upstream: reported on 2025/08/03 06:59
Reported-by: syzbot+f0d15acf136ba9ce5976@syzkaller.appspotmail.com
First crash: 92d, last: 10d
Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd panic: softclock: invalid to_clock: -ADDR 2 22 378d 612d 0/3 auto-obsoleted due to no activity on 2025/01/19 01:42
openbsd panic: softclock: invalid to_clock: -ADDR (2) 2 1 259d 259d 0/3 auto-obsoleted due to no activity on 2025/05/17 18:03

Sample crash report:
panic: softclock: invalid to_clock: -538976289
Starting stack trace...
panic(ffffffff8336b466) at panic+0x1ba sys/kern/subr_prf.c:229
softclock(0) at softclock+0x256
softintr_dispatch(0) at softintr_dispatch+0xf9 sys/kern/kern_softintr.c:87
dosoftint(0) at dosoftint+0x48 sys/arch/amd64/amd64/intr.c:847
Xsoftclock() at Xsoftclock+0x27
end of kernel
end trace frame: 0x71dfff9feb00, count: 252
End of stack trace.
syncing disks...
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Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/10/23 23:25 openbsd 6cdaebff9937 c0460fcd .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main panic: softclock: invalid to_clock: -ADDR
2025/08/03 06:58 openbsd bf6d80a8c313 3cda49cf .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main panic: softclock: invalid to_clock: -ADDR
* Struck through repros no longer work on HEAD.