compiz crashed with SIGSEGV in _swrast_map_texture()

[jerrylamos]

Saucy updated just updated to 3.11.0-8 from -7. Ran for a while then external monitor froze. Normally have built-in netbook screen off. Systems settings displays said external monitor "unknown display" and wouldn't run it. Normally reports it as Coby electronics co. ltd 40" (?) max resolution 19201080x1080 I run it at 1360x768, 15.5" diagonal.

Rebooted later without external monitor, plugged it back in and running normally now.

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: unity 7.1.0+13.10.20130920-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-8.15-generic 3.11.1
Uname: Linux 3.11.0-8-generic x86_64
ApportVersion: 2.12.4-0ubuntu1
Architecture: amd64
CrashCounter: 1
Date: Sun Sep 22 12:26:38 2013
ExecutablePath: /usr/bin/compiz
InstallationDate: Installed on 2013-09-09 (14 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130907)
MarkForUpload: True
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f8c9b978d11 <_swrast_map_texture+241>: cmpq $0x0,(%rax,%rbp,8)
 PC (0x7f8c9b978d11) ok
 source "$0x0" ok
 destination "(%rax,%rbp,8)" (0x00000000) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 _swrast_map_texture () from /usr/lib/x86_64-linux-gnu/libdricore9.2.0.so.1
 _swrast_map_textures () from /usr/lib/x86_64-linux-gnu/libdricore9.2.0.so.1
 _swrast_span_render_start () from /usr/lib/x86_64-linux-gnu/libdricore9.2.0.so.1
 _swrast_render_start () from /usr/lib/x86_64-linux-gnu/libdricore9.2.0.so.1
 ?? () from /usr/lib/x86_64-linux-gnu/libdricore9.2.0.so.1
Title: compiz crashed with SIGSEGV in _swrast_map_texture()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 _swrast_map_texture (ctx=ctx@entry=0x1903fe0, texObj=0x31b2670) at ../../../../../src/mesa/swrast/s_texture.c:287
 _swrast_map_textures (ctx=ctx@entry=0x1903fe0) at ../../../../../src/mesa/swrast/s_texture.c:353
 _swrast_span_render_start (ctx=0x1903fe0) at ../../../../../src/mesa/swrast/s_context.c:876
 _swrast_render_start (ctx=ctx@entry=0x1903fe0) at ../../../../../src/mesa/swrast/s_context.c:895
 _swsetup_RenderStart (ctx=0x1903fe0) at ../../../../../src/mesa/swrast_setup/ss_context.c:202

[jerrylamos (jerrylamos)]

I'm running Utopic Development now, haven't had this problem.

[Will Cooke (willcooke)]

As part of the big bug clear up for 16.04 LTS I am marking this bug as Wont Fix. These types of crasher are better handled by errors.ubutnu.com which can collate similar crash reports to help us identify persitent bugs rather than one-off crashes. Sorry we are not able to help with this specific issue. If you are still experiencing this crash, please re-open the bug and add the tag “desktop-bugscrub-reopen”. See https://wiki.ubuntu.com/BigDesktopBugScrub for more information.

[penalvch (penalvch)]

As per https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1228991/comments/6 .