On 3/28/21 4:58 AM, Kristjan Komloši wrote: > On 3/27/21 10:27 PM, David Newman wrote: >> OpenBSD 6.8 GENERIC#5 i386 >> >> One of my systems rebooted at 03:01 local time today. I've seen kernel >> panics and bad hardware but I've never seen OpenBSD "just reboot" by >> itself, ever. >> >> There's no cron job that would do this. last(1) is no help; it shows the >> reboot command but not the shutdown that preceded it: >> >> root@ns ~ 4# last -f /var/log/wtmp.0 >> reboot ~ Sat Mar 27 03:01 >> root ttyp0 192.168.0.132 Wed Mar 24 11:23 - 11:23 >> (00:00) >> >> wtmp.0 begins Wed Mar 24 11:23 2021 >> root@ns ~ 5# last -f /var/log/wtmp.1 >> root ttyp0 192.168.0.132 Tue Mar 16 21:30 - 21:30 >> (00:00) >> root ttyp0 75.82.86.131 Tue Mar 16 13:14 - 21:30 >> (08:15) >> root ttyp0 75.82.86.131 Sun Mar 14 21:20 - 21:29 >> (00:08) >> root ttyp0 75.82.86.131 Sat Mar 13 17:42 - 21:13 >> (03:31) >> >> The date gaps seem odd. I've ssh'd into this system multiple times >> between March 16-27. I don't see other signs of trouble in /var/log. >> >> I could use some help in looking for evidence of foul play, or "just" a >> hardware or software problem. >> >> Thanks in advance for further troubleshooting clues. >> >> dn >> > What kind of a machine is it running on? I remember having reboot > problems on certain HP and Supermicro servers with hardware watchdogs.
This is a 10+-year-old Dell 1U server with a 2-GHz Celeron 440, part of a pair running CARP. Aside from having to replace spinning disks with SSDs a couple of years ago, they've been rock solid. I too have seen issues with Supermicros but that's with other OSs. I've never had a spontaneous reboot, on this system, and am concerned from the wtmp stuff above that this *may* have been triggered externally. I could use some clues in other things to check. Thanks. dn
