Am 11.05.2010 18:09, schrieb b1:
Well it seesm like you are not the only one with this problem. I think I experience the same, although with a slightly different setup and therefore alternate consequences. I am running gnome on my 32bit Arch Linux machine, with a ati graphics-card. Sometimes firefox crashes and gnome restarts. No complete shutdown in my case, but I have to login again. However this only happens with the flash-plugin being enabled. Unfortunately I wasn't able to reproduce the problem, it occurs without any pattern (At least none which I could discover).
However, i therefore installed flashblock on firefox. Since then I havn't experienced this problem again. Therefore I think that your shutdown (my gnome restart) is definitly caused by flashplugin+firefox itself. Overheating or strange scripts, aren't the problem in my case (I am sure, since it is a pretty standard install and the temps are ok).
Currently I was waiting for the next update to eventually fix the problem (since I can live without flash). But eventually someone has some clues of how to troubleshoot this (Is there any firefox stacktrace???).
There is a huge difference between your problem and the other one: Yours is perfectly explained by a bug in the X server or your display driver (when this happened, look at /var/log/Xorg.0.log.old for a backtrace), which would be triggered by the flashplugin. The original problem involves a graceful system shutdown, which is not explained by any bug I can think of.