topic Re: System Crash. in Operating System - HP-UX

System Crash.

Fred Myers — Tue, 15 May 2001 20:51:27 GMT

I have an HP K420 running HP-UX 11.0 and it crashed funny thing is I have no /etc/shutdownlog entry -
no info in /var/tombstone/ts99
(it is current date) -
and the last message in
/var/adm/syslog/OLDsyslog.log
is over a day old?
No dump was even placed into /var/adm/crash either, does anybody know a way to try to figure out what caused this?

Thanks
Fred.

Re: System Crash.

A. Clay Stephenson — Tue, 15 May 2001 21:06:55 GMT

I don't see any way to whip this one. I suppose we should now concentrate on the next panic that is probably coming. I would first make sure that I have dump devices configured.
Secondly, check /etc/rc.config.d/crashconf
and make sure that CRASHCONF_ENABLED=1; that CRASHCONF_EXCLUDED_PAGES is NOT set to "all";
and that CRASHCONF_READ_FSTAB=1.

Sorry that I couldn't help more, Clay

Re: System Crash.

melvyn burnard — Wed, 16 May 2001 06:15:02 GMT

The fact that there is no entry in shutdownlog, nor a dump indicates one of three things.
It could be someone has issued a reboot -q (unlikely) or it could be power issue.
Did you have any power problems at around the time of the failure?

Otherwise I would be inclined tyo suspect the hardware, particularly the power or system board in a Kclass.

Re: System Crash.

Chin Guan — Wed, 16 May 2001 06:28:24 GMT

If the system panic before. You can try to manually save the crashdump again:
HP-UX 11.0
savecrash -r /var/adm/crash
=> if it comes back to prompt without any message, means thereis no coredump... quite likely no system panic recently.

HP-UX 10.20
savecore -r /var/adm/crash
=> This try to save dump and tells you when was it panic before.

If you manage to save the dump, you may try to contac HP Support to analyze the dump (although it may not be a good dump anymore if your system start using the swap area).

Re: System Crash.

Rita C Workman — Wed, 16 May 2001 11:05:40 GMT

Fred,
I go with Melvyn's suggestion. Just last week I had a K box that kept rebooting on me...no reason it seemed and no entries in any logs. When I would run and hit the computer room it was already coming back up and seemed ok....
Turned out to be a problem with the power supply in the box and the power monitor. Replaced them both...and poof no more reboots.

Just a thought,
/rcw

Re: System Crash.

Mark Vollmers — Wed, 16 May 2001 11:58:47 GMT

Like the others, it looks like it might be a power issue. Do you have a UPS on it? If so, check it out to make sure that it is good. Also, check where the server is, who can get at the box, and how accessable the power cords are. There have been a number of threads where people have told of servers being unplugged by cleaning people or people who did not realize that servers could not be treated like normal desktop PC's and flipped the power switch. Good luck.

Mark