hi,Hi,
This has happened to me a few times before, in 2.2 kernels and 2.4
kernels. I'm not sure where I should start looking first, but I have a
feeling that the X server could be a factor.
The last few times it has happened it was while I was in Mozilla and
clicking quickly on the horozontal scroll bar to move to the right a
screen at at time, and then poof, reboot.
I doubt it is mozilla itself, since unprivleged userspace shouldn't be
able to reboot the system, though X does have access to the
hardware...
This has happened less than 10 times in the past year with different
kernels, and even different X server versions (I'm running
debian-testing). What can I do that might be able to help me narrow
this down a little?
X is hardware intensive. I would start by setting up memtest86 and running that for a day or so (at least one full cycle). It may just be that there are processes in X that aren't dying properly so that you start getting farther into your physical memory and you reach a specific "bad" spot. If you have the java plugin running in mozilla I've seen it open a *LOT* of instances of java_vm -- if they don't die properly as you move from page to page...well...G
it doesn't have to be a 'bad' spot necessarily, even though the problem is very likely to be memory-related.
i had the same happening to me and it turned out my motherboard didn't get along with my memory too well. some mainboards let you turn on special memory enhancing options (modes like 'turbo', and the like). what solved the issue for me was to turn off (i.e. pput into 'normal') this feature.
robert
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