compiz crashed with SIGSEGV in g_atomic_int_get() (was removing firefox from unity side menu after I uninstalled it (there was a question mark icon left in place))

[kasl33]

I installed Chromium. At the same time, I uninstalled Firefox. This left a question-mark icon in the left-side unity menu. When I went to delete the icon, the crash happened.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: libnux-0.9-0 0.9.38-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
Uname: Linux 2.6.38-7-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Sat Apr 2 22:38:18 2011
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110330)
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7fe4c70110f3 <g_atomic_int_get+3>: mov (%rdi),%eax
 PC (0x7fe4c70110f3) ok
 source "(%rdi)" (0x00000020) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: nux
StacktraceTop:
 g_atomic_int_get () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_bit_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_variant_ref_sink () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_variant_new_strv () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_settings_set_strv () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
Title: compiz crashed with SIGSEGV in g_atomic_int_get()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 g_atomic_int_get (atomic=0x20) at /build/buildd/glib2.0-2.28.5/./glib/gatomic-gcc.c:64
 g_bit_lock (address=0x20, lock_bit=<value optimized out>) at /build/buildd/glib2.0-2.28.5/./glib/gbitlock.c:211
 g_variant_ref_sink (value=0x0) at /build/buildd/glib2.0-2.28.5/./glib/gvariant-core.c:687
 g_variant_new_strv (strv=0x7fff5cea1810, length=15) at /build/buildd/glib2.0-2.28.5/./glib/gvariant.c:1353
 g_settings_set_strv (settings=0x18d0320, key=0x7fe4b6b207e5 "favorites", value=<value optimized out>) at /build/buildd/glib2.0-2.28.5/./gio/gsettings.c:1983

[Omer Akram (om26er)]

I have faced this crash too, probably when I removed firefox after installing natty.