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[mcuelenaere <703272@xxxxxxxxxxxxxxxxxx>]

This doesn't seem to be an Xorg nor chromium bug, but an i915 DRM one
(kernel):

[  189.028062] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
[  189.028270] [drm:i915_do_wait_request] *ERROR* i915_do_wait_request returns -5 (awaiting 4942 at 4938)
[  209.163072] show_signal_msg: 30 callbacks suppressed
[  209.163085] chromium-browse[2618]: segfault at 0 ip b52d90cd sp b4009d70 error 6 in chromium-browser[b4a8a000+2cfb000]

I'm not able to attach multiple files (?) so I'll paste the rather short
gdb log here (couldn't get a backtrace as Xorg got killed):

GNU gdb (GDB) 7.2-ubuntu
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/bin/Xorg...(no debugging symbols found)...done.
(gdb) attach 1151
Attaching to program: /usr/bin/Xorg, process 1151
Reading symbols from /lib/libudev.so.0...(no debugging symbols found)...done.
Loaded symbols for /lib/libudev.so.0
Reading symbols from /lib/libgcrypt.so.11...(no debugging symbols found)...done.
Loaded symbols for /lib/libgcrypt.so.11
Reading symbols from /lib/libdl.so.2...Reading symbols from /usr/lib/debug/lib/libdl-2.12.1.so...done.
done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /usr/lib/libpciaccess.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpciaccess.so.0
Reading symbols from /lib/libpthread.so.0...Reading symbols from /usr/lib/debug/lib/libpthread-2.12.1.so...done.
[Thread debugging using libthread_db enabled]
done.
Loaded symbols for /lib/libpthread.so.0
Reading symbols from /usr/lib/libpixman-1.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpixman-1.so.0
Reading symbols from /usr/lib/libXfont.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXfont.so.1
Reading symbols from /usr/lib/libXau.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXau.so.6
Reading symbols from /usr/lib/libXdmcp.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXdmcp.so.6
Reading symbols from /lib/libm.so.6...Reading symbols from /usr/lib/debug/lib/libm-2.12.1.so...done.
done.
Loaded symbols for /lib/libm.so.6
Reading symbols from /lib/librt.so.1...Reading symbols from /usr/lib/debug/lib/librt-2.12.1.so...done.
done.
Loaded symbols for /lib/librt.so.1
Reading symbols from /lib/libc.so.6...Reading symbols from /usr/lib/debug/lib/libc-2.12.1.so...done.
done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/libgpg-error.so.0...(no debugging symbols found)...done.
Loaded symbols for /lib/libgpg-error.so.0
Reading symbols from /lib/ld-linux.so.2...Reading symbols from /usr/lib/debug/lib/ld-2.12.1.so...done.
done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /lib/libz.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/libz.so.1
Reading symbols from /usr/lib/libfreetype.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libfreetype.so.6
Reading symbols from /lib/libbz2.so.1.0...(no debugging symbols found)...done.
Loaded symbols for /lib/libbz2.so.1.0
Reading symbols from /usr/lib/libfontenc.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libfontenc.so.1
Reading symbols from /lib/libgcc_s.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/libgcc_s.so.1
Reading symbols from /usr/lib/xorg/modules/extensions/libextmod.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/xorg/modules/extensions/libextmod.so
Reading symbols from /usr/lib/xorg/modules/extensions/libdbe.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/xorg/modules/extensions/libdbe.so
Reading symbols from /usr/lib/xorg/modules/extensions/libglx.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/xorg/modules/extensions/libglx.so
Reading symbols from /usr/lib/xorg/modules/extensions/librecord.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/xorg/modules/extensions/librecord.so
Reading symbols from /usr/lib/xorg/modules/extensions/libdri.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/xorg/modules/extensions/libdri.so
Reading symbols from /lib/libdrm.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib/libdrm.so.2
Reading symbols from /usr/lib/xorg/modules/extensions/libdri2.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/xorg/modules/extensions/libdri2.so
Reading symbols from /usr/lib/xorg/modules/drivers/intel_drv.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/xorg/modules/drivers/intel_drv.so
Reading symbols from /lib/libdrm_intel.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/libdrm_intel.so.1
Reading symbols from /usr/lib/xorg/modules/drivers/vesa_drv.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/xorg/modules/drivers/vesa_drv.so
Reading symbols from /usr/lib/xorg/modules/drivers/fbdev_drv.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/xorg/modules/drivers/fbdev_drv.so
Reading symbols from /usr/lib/xorg/modules/libfbdevhw.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/xorg/modules/libfbdevhw.so
Reading symbols from /usr/lib/xorg/modules/libfb.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/xorg/modules/libfb.so
Reading symbols from /usr/lib/dri/i915_dri.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/dri/i915_dri.so
Reading symbols from /lib/libexpat.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/libexpat.so.1
Reading symbols from /usr/lib/xorg/modules/input/evdev_drv.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/xorg/modules/input/evdev_drv.so
Reading symbols from /usr/lib/libutouch-grail.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libutouch-grail.so.1
Reading symbols from /usr/lib/libmtdev.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libmtdev.so.1
Reading symbols from /usr/lib/xorg/modules/input/synaptics_drv.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/xorg/modules/input/synaptics_drv.so
Reading symbols from /lib/libnss_compat.so.2...Reading symbols from /usr/lib/debug/lib/libnss_compat-2.12.1.so...done.
done.
Loaded symbols for /lib/libnss_compat.so.2
Reading symbols from /lib/libnsl.so.1...Reading symbols from /usr/lib/debug/lib/libnsl-2.12.1.so...done.
done.
Loaded symbols for /lib/libnsl.so.1
Reading symbols from /lib/libnss_nis.so.2...Reading symbols from /usr/lib/debug/lib/libnss_nis-2.12.1.so...done.
done.
Loaded symbols for /lib/libnss_nis.so.2
Reading symbols from /lib/libnss_files.so.2...Reading symbols from /usr/lib/debug/lib/libnss_files-2.12.1.so...done.
done.
Loaded symbols for /lib/libnss_files.so.2
0x00b5e832 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
(gdb) cont
Continuing.

Program received signal SIGABRT, Aborted.
0x00b5e832 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
(gdb) 
(gdb) 
(gdb) 
(gdb) 
(gdb) 
Continuing.

Program terminated with signal SIGABRT, Aborted.
The program no longer exists.
(gdb) 
The program is not being run.
(gdb) bt
No stack.
(gdb) 
No stack.
(gdb) q

** Attachment added: "dmesg-crash.txt"
   https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/703272/+attachment/1794745/+files/dmesg-crash.txt

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https://bugs.launchpad.net/bugs/703272

Title:
  Xorg crash