Bug#452739: Crash

[Brice Goglin <Brice.Goglin@ens-lyon.org>]

Øystein Gisnås wrote:
> Note that there are two lockups/hangs/crashes, both with output to the
> log. The first one happens sporadically and causes gdm to restart.
> Isn't that most probably a crash?

Yes, if gdm restarts, that's probably a real crash.
/var/log/Xorg.0.log.old should contain a possibly interesting backtrace
at the end (Xorg0.log is saved in .old when X restarts). Remember to
save Xorg.0.log.old next time such a gdm restart occurs.

> The second one, when the new X server starts, may well be a lockup as
> you say. Wouldn't it be better to look at the first one to find the
> cause here? The first clue in the log is: "Error in I830WaitLpRing(),
> timeout for 2 seconds".

Yes, that's a lockup and we need to look at the first crash first. The
lockup could just be caused by the first crash leaving the hardware page
table in a bad state (even if we might say that the driver should be
able to cleanup this mess on startup).

Brice