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Re: SuSE Linux Box Crashes

  • Subject: Re: SuSE Linux Box Crashes
  • From: Roy Schestowitz <newsgroups@xxxxxxxxxxxxxxx>
  • Date: Sun, 05 Feb 2006 09:12:25 +0000
  • Newsgroups: uk.comp.os.linux
  • Organization: schestowitz.com / MCC / Manchester University
  • References: <43e3d229$0$1487$ed2619ec@ptn-nntp-reader01.plus.net> <pan.2006.>
  • Reply-to: newsgroups@xxxxxxxxxxxxxxx
  • User-agent: KNode/0.7.2
__/ [graham] on Saturday 04 February 2006 09:19 \__

> On Fri, 03 Feb 2006 21:59:04 +0000, David wrote:
>> I'm really struggling to diagnose a problem with my linux box. Details
>> are;
>> Problem: At irregular periods varying from minutes to weeks the box
>> crashes completely. Sometimes the crash manifests itself as the box
>> being totally unresponsive - screen display dead, magic keys don't
>> illicit any response, interface doesn't respond to pings, the only
>> solution is to power down after which it reboots fine. Other times the
>> box just reboots itself.
>> Spec: SuSE 9.2, Intel PIII 800MHz, 192Mb RAM, running Postfix,
>> Fetchmail, Courier-IMAP, Spamassassin, Apache, and MySQL. Serves 4-5
>> users and mainly for mail only.
>> I've run memory checks, disk checks, have removed and reseated all cards
>> and even leaving the box at runlevel 3 (ie. running without X) doesn't
>> seem to have any bearing on it.
>> There is nothing at all in the log files about the crash. All I get in
>> the log is the Kernel restarting but nothing about what caused the
>> lock-up or self-reboot. No panic messages or anything helpful at all.
>> I've no evidence to back this up, but I have a feeling that this only
>> happens when the box is "under stress" (although this is a relative
>> terms as avg CPU over 1 min is <2% and there are few page faults - both
>> according to KDE System Guard - by "under stress" I mean it's doing
>> something rather than just sitting idle).
>> I'm coming to the conclusion that it must be a hardware problem but I'm
>> relatively new to linux admin and just thought I'd check if anyone had
>> any ideas? Is there anything similar to Windows "blue screens" that
>> might at least give a small clue as to what process has caused the crash?
>> Thanks in advance, David.
> From the cpu I assume the motherboard is about 5 years old.
> I had a problem with a motherboard from that era where the capacitors were
> leaking. A few manufacturers suffered from bad capacitors around that time.

It's sounds quite probable:


At issue are faulty capacitors on motherboards that store power and regulate
voltage. Defective capacitors found in the Dell Optiplex workstations, some
Apple iMac G5s, HP xw-series workstations made in 2004 and PCs with the
Intel D865GBF motherboard have been found to bulge, pop, leak and crust
over, causing video failure and periodic system shutdowns.

It is not the same class of processors, but the symptons sound familiar.


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