Quoting Steve Litt <sl...@troubleshooters.com>:
On Thursday 16 July 2009 11:21:58 am Shimon Panfil wrote:
Hi folks,
today my main box running debian lenny made sudden restart. How can I
investigate what was the reason? What log should I inspect? I use UPS
so the reason might be more interesting that simple power failure.
Hi Shimon,
You have a sparsely occurring intermittent -- as a matter of fact so far it's
a single event. If the cause was software, it's possible you can find a clue
in the logs.
If I were in your shoes and there's no clue in the logs, I would just wait
until the problem becomes frequent enough to be a bother. But if you want to
address the problem right now, I'd suggest corrective maintenance:
1) Feel if the power supply is getting too hot, and replace it if so.
2) Vacuum out all the dust from the inside.
3) Pull off, lubricate (electronics lubricant) and reseat all cables.
4) If your motherboard batter is more than a year old, replace it.
5) Disable (open circuit) your reboot button, and replace your on/off button
with a simple, non-lighted doorbell button.
I learned #5 the hard way -- the reboot and power switches that come with the
case can go intermittent, and not just intermittent open, but intermittently
close without pushing.
None of the preceding is diagnostic in nature, but given the rarity of the
symptom, if the log files don't have something telling, the preceding are
probably the best use of your time.
HTH
SteveT
Steve Litt
Recession Relief Package
http://www.recession-relief.US
Twitter: http://www.twitter.com/stevelitt
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Hi folks,
I've got a few more restarts. I have switched off gdm so Xserver
failure should not cause a restart. The box seems not too hot, but the
problem might be connected with power, all restarts occur after few
hours of heavy load.
There is nothing in logs. It looks like restart button was pressed.
My box is still under warranty so I can not play with hardware.
However I should like to understand how it works. In particular I
wander, is it possible that some user program cause immediate restart?
Is it kernel which does it, or BIOS or whatever?
CPU: AMD QUAD 9750
MB: GIGABYTE-GA-MA790
OS:debian 5.0.2 (lenny)
Any ideas?
--
Shimon Panfil: Industrial Physics and Simulations
http://industrialphys.com
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