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

[Vangel Ajanovski]

Binary package hint: compiz

I logged in and was reading my email in Thunderbird when something crashed and the message box to report the problem appeared. I am not even sure why this bug report decided to mention Unity and Compiz because I am using the Classic desktop option and Gnome. What I now notice as strange is that I do not see the window title bars as if I was under Unity - which I should not be in!

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: compiz-gnome 1:0.9.4-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-5.32-generic 2.6.38-rc6
Uname: Linux 2.6.38-5-generic x86_64
NonfreeKernelModules: wl
Architecture: amd64
CrashCounter: 1
Date: Tue Mar 1 11:04:37 2011
ExecutablePath: /usr/bin/unity-window-decorator
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110202)
ProcCmdline: /usr/bin/unity-window-decorator
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.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: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
XsessionErrors:
 (nautilus:1490): GConf-CRITICAL **: gconf_value_free: assertion `value != NULL' failed
 (nm-applet:1505): Gtk-CRITICAL **: IA__gtk_widget_is_toplevel: assertion `GTK_IS_WIDGET (widget)' failed

[Vangel Ajanovski (ajanovski)]

After submitting the bug, I immediately logged out and logged in and now the window title bars are back.
But, unfortunately now there is another problem - the whole appearance has changed.
The theme I use (Dust) is only visible in the window borders and titlebar, which the rest of the desktop is unthemed, and when I go to Appearance it says that I have selected a custom theme.
The desktop background is normal and the theme of the panels works for a left panel, so only the top panel is not themed properly.

So somehow the whole desktop has decided by itself that it should look like something else.

[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.