[Intel-gfx] Regression: libdrm update from 2.4.18 to 2.4.19 leads to Xorg crashes (bisection inside)

Thomas Bächler thomas at archlinux.org
Sun Apr 11 18:20:17 CEST 2010


Am 11.04.2010 17:46, schrieb Thomas Bächler:
> Since updating from libdrm 2.4.18 to .19 (or .20 if you like), Xorg
> crashes. I run KDE 4.4, and when I launch konqueror, or launch firefox
> and open a website (many other actions trigger it too), the X server
> crashes. The Xorg.0.log has no messages that are out of the ordinary,
> the crash is not documented there in any way. All I get is a message
> from kdm that the server "terminated unexpectedly".
> 
> This happens with different versions of xorg-server (1.7, 1.8) as well
> as the intel driver (2.10, 2.11). The hardware is an Arrandale chipset
> (Core i5-520M integrated graphics on Intel HM55), kernel is 2.6.33.*
> x86_64, on Arch Linux.
> 
> Bisection leads to the following commit. If I need to test/provide
> anything else, feel free to ask.
> 
> commit a1f9ea765ddc5cad45e36c4931663b21992727ee
> Author: Eric Anholt <eric at anholt.net>
> Date:   Tue Mar 2 08:49:36 2010 -0800
> 
>     intel: Use an integer for chipset generation instead of many
> conditionals.
> 
>     Saves a bunch of comparisons in hot paths.

Okay, I need to apologize. Reproducing this problem is not as
straight-forward, the bad commit was before that, and before the
execbuf2 commit, I need to bisect more, will post again later.

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