unity-window-decorator crashed with SIGSEGV in g_closure_invoke()

[Martin Pitt]

Binary package hint: compiz

I now get this sporadically, but I haven't found a pattern yet. It happens spontaneously.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: compiz-gnome 1:0.9.4-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-5.32-generic 2.6.38-rc6
Uname: Linux 2.6.38-5-generic x86_64
Architecture: amd64
Date: Wed Mar 2 18:12:44 2011
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/unity-window-decorator
ProcCmdline: /usr/bin/unity-window-decorator
ProcEnviron:
 LANGUAGE=de:en
 PATH=(custom, user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x415c70: mov 0x310(%rax),%rdi
 PC (0x00415c70) ok
 source "0x310(%rax)" (0x00000310) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 ?? ()
 g_closure_invoke (closure=0x23c1bf0, return_value=0x0, n_param_values=2, param_values=0x242c700, invocation_hint=0x7ffff4fba120) at /build/buildd/glib2.0-2.28.1/./gobject/gclosure.c:767
 signal_emit_unlocked_R (node=<value optimized out>, detail=0, instance=0x242b020, emission_return=0x0, instance_and_params=0x242c700) at /build/buildd/glib2.0-2.28.1/./gobject/gsignal.c:3252
 g_signal_emit_valist (instance=<value optimized out>, signal_id=<value optimized out>, detail=<value optimized out>, var_args=<value optimized out>) at /build/buildd/glib2.0-2.28.1/./gobject/gsignal.c:2983
 g_signal_emit (instance=<value optimized out>, signal_id=<value optimized out>, detail=<value optimized out>) at /build/buildd/glib2.0-2.28.1/./gobject/gsignal.c:3040
Title: unity-window-decorator crashed with SIGSEGV in g_closure_invoke()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin audio lpadmin sambashare video
XsessionErrors: (<unknown>:1816): dee-WARNING **: Transaction from com.canonical.Unity.ApplicationsPlace.SectionsModel is in the past. Ignoring transaction.

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #727041, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.