Hi, Grzegorz. Thank you for your response.
On Sep 27, 2005, at 8:43 AM, Grzegorz Kulewski wrote:
What is your southbridge?
The southbridge is a VIA VT82C686.
Maybe there are some problems there with DMA or cables.
Humm, cables. I forgot to check that. I will check that as soon as I
wake up. I spent the entire night trying to fix this, but of course,
I gave up after some days of effort and decided to ask for help.
Anything in logs?
Nothing in the logs. No oops, no stack trace, no nothing. :-( Oh, now
that you mention it, I remember that I also made my Matrox G400 use
speed 4x. I will try slowing it down to see if there is any influence
on what I see.
Maybe sourthbridge or northbridge is simply overheating? Maybe you
have bad power suply? What are readings of temperatures and
voltages in BIOS after some heavy disk-memmory activities?
I don't know, because lmsensors doesn't give accurate measurements,
unfortunately. :-(
You can use http://pyropus.ca/software/memtester/ to check your
memory in linux. You can run cpuburn at the same time. And you can
do some disk activity at the same time (for example dd if=/dev/hda
bs=200M | md5sum several times to check if it will give the same
results).
I had already tried using memtester, but I guess that I was too
ambitious with the amount of memory that I tried it to allocate. I
will try this, but with my filesystem in read-only mode, as I cannot
afford to loose what I have (and Debian's mondo/mind isn't working
right now---I already filed a bug report that is shared by others).
I will bet that you have some hardware problem there. You can try
to remove the 256MB DDR module and turn HIGHMEM off. You can also
try to check each module separately.
I already checked each module separately, but I didn't see any
corruption. I guess that I maybe wasn't paying too much attention. I
will try it again. Thanks for the suggestion.
And the best choice will be probably to buy new mb (for example
Abit KW7 or KV7) because your is very old and it can start to
silently break after so many years... Today mbs are very short
living parts - 3-4 years and they are broken...
Yes, I was just trying to avoid getting a new system now, with all
the transitions going on (i386 -> x86_64 CPUs, PATA -> SATA etc). But
my time is also costing me some nights of sleep... :-( It sucks not
to be in the US, where things are cheaper. :-(
Thank you very much, Rogério.
--
Rogério Brito : [email protected] : http://www.ime.usp.br/~rbrito
Homepage of the algorithms package : http://algorithms.berlios.de
Homepage on freshmeat: http://freshmeat.net/projects/algorithms/
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