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

[Marc Deslauriers]

Binary package hint: compiz

Firefox hung. Clicked X in window title bar a few times to kill Firefox. Compiz went poof.

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
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Mon Mar 7 16:16:33 2011
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/unity-window-decorator
ProcCmdline: /usr/bin/unity-window-decorator
ProcEnviron:
 LANGUAGE=en_CA:en
 PATH=(custom, user)
 LANG=en_CA.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 () from /usr/lib/libgobject-2.0.so.0
 ?? () from /usr/lib/libgobject-2.0.so.0
 g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
 g_signal_emit () from /usr/lib/libgobject-2.0.so.0
Title: unity-window-decorator crashed with SIGSEGV in g_closure_invoke()
UpgradeStatus: Upgraded to natty on 2011-02-01 (34 days ago)
UserGroups: adm admin cdrom dialout libvirtd lpadmin plugdev sambashare sbuild

[Apport retracing service (apport)]

StacktraceTop:
 window_closed (screen=<value optimized out>, win=0xe2b230) at /build/buildd/compiz-0.9.4/unity/unity_window_decorator/src/wnck.c:747
 closure_invoke_notifiers (closure=0xc67ca0, return_value=0x0, n_param_values=2, param_values=0x10ef960, invocation_hint=0x7ffff0e1dd90) at /build/buildd/glib2.0-2.28.2/./gobject/gclosure.c:280
 g_closure_invoke (closure=0xc67ca0, return_value=0x0, n_param_values=2, param_values=0x10ef960, invocation_hint=0x7ffff0e1dd90) at /build/buildd/glib2.0-2.28.2/./gobject/gclosure.c:766
 accumulate (node=<value optimized out>, detail=0, instance=0xcc7010, emission_return=0x0, instance_and_params=0x10ef960) at /build/buildd/glib2.0-2.28.2/./gobject/gsignal.c:3095
 signal_emit_unlocked_R (node=<value optimized out>, detail=0, instance=0xcc7010, emission_return=0x0, instance_and_params=0x10ef960) at /build/buildd/glib2.0-2.28.2/./gobject/gsignal.c:3257