I believe this crash happened as the spread was not being shut down
cleanly. During logout, shell would hang around when the X server would
shut down, making the display variable null, and hence causing
XPending() to crash.
This issue has been fixed, shell shuts down properly when asked to by
gnome-session. Therefore I'll mark this bug as fix released.
Thanks for the update kriekse, and vibhavp for persuing it.
-G
** Changed in: unity-2d
Status: New => Fix Released
** Changed in: unity-2d (Ubuntu)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/833603
Title:
unity-2d-spread crashed with SIGSEGV in XPending()
Status in Unity 2D:
Fix Released
Status in “unity-2d” package in Ubuntu:
Fix Released
Bug description:
I was updating/upgrading Ubuntu 11.10 in virtualbox OSE and got this
'bug'
ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity-2d-spread 4.0.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-9.13-generic 3.0.3
Uname: Linux 3.0.0-9-generic i686
Architecture: i386
Date: Thu Aug 25 10:31:08 2011
ExecutablePath: /usr/bin/unity-2d-spread
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcCmdline: /usr/bin/unity-2d-spread
ProcEnviron:
SHELL=/bin/bash
PATH=(custom, no user)
LANGUAGE=nl_BE:nl
LANG=nl_BE.UTF-8
SegvAnalysis:
Segfault happened at: 0x175bc7e <XPending+30>: mov 0x4d0(%esi),%eax
PC (0x0175bc7e) ok
source "0x4d0(%esi)" (0x000004d0) not located in a known VMA region (needed
readable region)!
destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity-2d
StacktraceTop:
XPending () from /usr/lib/i386-linux-gnu/libX11.so.6
?? () from /usr/lib/libgdk-3.so.0
?? () from /usr/lib/libgdk-3.so.0
g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
Title: unity-2d-spread crashed with SIGSEGV in XPending()
UpgradeStatus: Upgraded to oneiric on 2011-08-25 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
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