[i915] SIGBUS X11 crash from libglx

[MMlosh]

I have a proprietary application crashing on SIGBUS during a /dev/dri/card0 ioctl
Unfortunately that provides no information at all

I tried with LIBGL_ALWAYS_INDIRECT=y and the X11 crashed.
Full Xorg logfile is attached.

When the X11 crashes this way, I immediately restart it and start the application, there is a chance of the error not happening.
But if there is an Xv client / flashplayer running on another VT, it never works.

ubuntu-bug does not work, reported as #1150335

This was happening both on Quantal and Raring.

[MMlosh (mmlosh)]

I believe that this commit is likely to fix the issue
http://cgit.freedesktop.org/mesa/mesa/commit/?id=ca9a7d975af228cabb79c3040ec67f26f94f90a2

Unfortunately the binary program is 32bit and mesa/libgl is not willing to cross-compile

The commit made it's way into mesa-9.1.2 (Raring has currently 9.1.1 in the repository)
I hope I'll be able to pull it from saucy and test soon

[Oibaf (oibaf)]

The referenced commit is now included in every Ubutu supported version.
Please reopen if the problem still happens with a supported Ubuntu release.