topic Re: Reboot Automatically in Operating System - HP-UX

Reboot Automatically

venkat_7 — Mon, 22 Apr 2002 12:39:35 GMT

Hi,

I'm working on HP9000,K370,800Series 11.0 os.For the past few weeks i'm facing problem,my system reboots automatically on sunday night.It's up monday early morning.I looked syslog file,i couldn't find.Please let me know the solution.I'll appreciate it

Thanks and Regards
ven

Re: Reboot Automatically

Bill McNAMARA_1 — Mon, 22 Apr 2002 12:41:25 GMT

There is possibly a cron job scheduling the reboot.
Check the scheduled tasks in sam.

Also have a look at
/etc/shutdownlog
for evidence of panic/reboot

Later,
Bill

Re: Reboot Automatically

A. Clay Stephenson — Mon, 22 Apr 2002 12:43:32 GMT

This sounds as though there is a crontab entry to trigger a reboot. You should do a crontab -l for all possible users and look for an entry.
Man crontab for details.

Re: Reboot Automatically

Sachin Patel — Mon, 22 Apr 2002 12:46:30 GMT

When you do crontab -l if any jobs are listed as

? ? ? ? 0 program/command

check that program 0 in 5th position is day of the week and 0=sunday.

Sachin

Re: Reboot Automatically

venkat_7 — Mon, 22 Apr 2002 12:51:54 GMT

Hi,

This is my etc/shutdownlog look like

23:22 Sun Apr 14 2002. Reboot after panic: , isr.ior = 0'10340003.0'afebe1c8
06:12 Mon Apr 15 2002. Reboot after panic: , isr.ior = 0'10240023.0'ceb3b210
18:04 Fri Apr 19, 2002. Halt:
02:16 Mon Apr 22 2002. Reboot after panic: , isr.ior = 0'10340003.0'b22c9a20

Re: Reboot Automatically

Helen French — Mon, 22 Apr 2002 12:57:37 GMT

Hi Venkat,

Which OS ? If you are using HP-UX 11.0 with JFS 3.x version, then apply the patch - PHKL_25021 (s700_800 11.00 VxFS 3.3 cumulative patch). That will solve your problem. This happens normally when a memory leak happens with JFS.

HTH,
Shiju

Re: Reboot Automatically

A. Clay Stephenson — Mon, 22 Apr 2002 12:57:54 GMT

This is obviously (and unfortunately) not a controlled shutdown but rather a kernel panic. It might be triggered by some routine process that you run on the weekend but I rather doubt it. You really are going to have to examine your kernel dumps with the q4 utility.

Re: Reboot Automatically

Bill McNAMARA_1 — Mon, 22 Apr 2002 12:59:12 GMT

well it's not a cron task.
It's application.

I recommend downloading the patch bundles for your OS from http://www.software.hp.com/

Is there any root email that suggests hardware diagnostics failure..

The PIM info, pdcinfo command is decodeable if it is a hardware failure, memory problem and so on.

I'd start with patches though.

The panic strings in your shutdownlog may reveal something on a patch search

Re: Reboot Automatically

Helen French — Mon, 22 Apr 2002 13:07:37 GMT

Hi Venkat:

Again, apply all the latest patches to the system. You can either do custom patch manager or apply the latest patch bundle. Another thing is to do a crash file analysis. You will get a better idea about the reason of the panic. If you suspect a HPMC hardware error, then you can check the /var/tombstones directory.

Check this document too (TKB # UXDNKBRC00001764):

http://us-support.external.hp.com/cki/bin/doc.pl/sid=581f82911637418205/screen=ckiDisplayDocument?docId=200000048827805

HTH,
Shiju