Bug#621780: glxinfo SEGV with multiple screens

[Peter Samuelson <peters@p12n.org>]

Package: mesa-utils
Version: 8.0.1-2
Severity: normal

glxinfo segfaults:

    $ glxinfo -display :0.2
    name of display: :0.2
    Segmentation fault

    $ glxinfo -display :0.1
    name of display: :0.1
    Segmentation fault

    $ glxinfo -display :0.0
    name of display: :0.0
    display: :0  screen: 0
    direct rendering: Yes
    ...
    Segmentation fault

On :0.0, it gives a lot of output but eventually segfaults.  Output is
cut off in the middle of a line, presumably stdio buffering interrupted
by the segfault.

On :0.1 and :0.2 it gives only the one line of output.

My configuration may be a little unusual:

    :0.0 xserver-xorg-video-nouveau    1:0.0.16+git20101210+8bb8231-2+exp2
    :0.1 xserver-xorg-video-radeon     1:6.14.0-1+exp2
    :0.2 xserver-xorg-video-nouveau    1:0.0.16+git20101210+8bb8231-2+exp2

Xinerama is disabled - apparently it doesn't support multiple drivers.

-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.38-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages mesa-utils depends on:
ii  libc6                         2.11.2-2   Embedded GNU C Library: Shared lib
ii  libgl1-mesa-glx [libgl1]      7.10-1     A free implementation of the OpenG
ii  libglew1.5                    1.5.8-3    The OpenGL Extension Wrangler - ru
ii  libglu1-mesa [libglu1]        7.10-1     The OpenGL utility library (GLU)
ii  libx11-6                      2:1.3.3-3  X11 client-side library
ii  libxext6                      2:1.1.2-1  X11 miscellaneous extension librar

-- no debconf information