wnck-applet crashed with SIGSEGV in g_closure_invoke()

[Umang Varma]

Binary package hint: gnome-panel

I don't know whether the issue with the gnome-panel and workspace manager are related.

I've had problems with gnome-panel after installing Lucid yesterday. Initially, the gnome-panel just wouldn't load, although Alt+F1 would work. I then removed .gconf .gconfd, .gnome2 .gnome2_private and restarted. The issues persisted.

Finally, killall gnome-panel worked. However I'd have to do this on each restart. And, many panels would crash on my trying to open the workspace properties (I just wanted two workspaces).

I've tried reinstalling as many panel/applets related packages I could find. I enabled apport by default and then deleted the same directories through tty1 before logging in (rather than through a terminal window after logging in). Now the panel seems to be loading properly, I'm going to try to restart again and check though.

After doing all this though, only the workspace manager crashed (unlike earlier when many more applets were crashing also) when I tried to load the workspace properties. With apport now enabled, I hope this will provide some more information about what happened.

ProblemType: Crash
DistroRelease: Ubuntu 10.04
Package: gnome-panel 1:2.30.0-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic i686
Architecture: i386
Date: Sat May 1 07:52:22 2010
ExecutablePath: /usr/lib/gnome-panel/wnck-applet
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
ProcCmdline: /usr/lib/gnome-panel/wnck-applet --oaf-activate-iid=OAFIID:GNOME_Wncklet_Factory --oaf-ior-fd=18
ProcEnviron:
 LANG=en_IN
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x804c706: mov (%ebx),%eax
 PC (0x0804c706) ok
 source "(%ebx)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gnome-panel
StacktraceTop:
 ?? ()
 ?? ()
 ?? () from /usr/lib/libbonoboui-2.so.0
 g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
 bonobo_closure_invoke_va_list ()
Title: wnck-applet crashed with SIGSEGV in g_closure_invoke()
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
XsessionErrors:
 (polkit-gnome-authentication-agent-1:1320): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
 (Do:1342): Wnck-CRITICAL **: wnck_set_client_type got called multiple times.

[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 #571974, 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.

[SunnyBUG (sunnybug)]

bug #508452 is a private bug, reopen this one please.

[Sebastien Bacher (seb128)]

the people working on the bug have access to the private one so that's not an issue