unpredictable crashes, lock up, freezes, whatever
Dear all,
I'm running mostly testing with some unstable under linux 2.2.19 (hand
rolled, of course) on an IBM ThinkPad i1476 (Type 2611). Since a few
weeks, my machine completely locks up at unpredictable moments. The
screen is no longer updated, I can't switch to a virtual terminal,
even the three finger salute doesn't do a thing. Pinging from another
machine results in 100% lost packets but the PCMCIA network card keeps
signalling traffic. Just about the only thing that keeps on going is
CD audio.
I regularly 'apt-get -t testing upgrade' and the problem hasn't gone
away. I've tried other kernels, including the Debian vanilla ones,
but to no avail. I've run memtest86 and found errors in one of my
DIMMs but the problem remains even after lobotomy. That is, even when
I only use the DIMM that is okay (memtest86, 20+ passes, tests 1-7) my
machine randomly locks up.
I've checked the logs but apart from occasional blocks of nulls just
before a lock up, I haven't seen anything out of the ordinary. Note,
those null blocks only appear before _some_ lock ups, not all.
Because I haven't experienced any lock up when using the console, I'm
wondering if my graphics card (probed as Neomagic NM2200 according to
XFree86 log, NeoMagic MagicMedia 256AV according to hardware spec) has
gone bad. Are there any tools a la memtest to test my graphics card?
Before you suggest, I have already tried both Gnome (with several
window managers) and KDE. It doesn't matter. The machine even locks
up when running (x|k)screensaver during lunch :-(
If you have other ideas as to what could be the matter, I'm open to
suggestions.
Please Cc:, I'm not subscribed (because of the volume). TIA,
--
Olaf Meeuwissen Epson Kowa Corporation, Research and Development
Free Software: `No walls, no windows! No fences, no gates!'
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