Ubuntu
libcompizconfig package

gnome-panel crashed with SIGSEGV in g_object_get()

Bug #199380 reported by Glenn
This bug report is a duplicate of:  Bug #207693: gnome-panel crashed with SIGSEGV. Edit Remove
10
Affects Status Importance Assigned to Milestone
libcompizconfig (Ubuntu)
New
High
Mirco Müller
Ubuntu ubuntu-8.04
libwnck (Ubuntu)
New
Undecided
Unassigned

Bug Description

Binary package hint: gnome-panel

I have my workspace switcher in the top right corner. I also have the expo compiz plugin set to initiate on mouse move to the top right corner. The workspace switcher has a tooltip description for keys for compiz, and sometimes, like 1 in 5, the tooltip pops up when i go to initiate expo. So I have expo activated, and I see the tooltip on both the workspaces, if I switch back to a workspace and put my mouse over the tooltip, gnome-panel crashes and restarts.

Not the easiest bug to replicate, but it is annoying to have gnome-panel crash on me (because of this bug, I usually crash the panel once or twice every hour).

Fresh install of hardy alpha 6, but this bug was also occurring with a fully update install from alpha 5.

ProblemType: Crash
Architecture: i386
Date: Fri Mar 7 00:46:10 2008
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/bin/gnome-panel
NonfreeKernelModules: nvidia
Package: gnome-panel 1:2.21.92-0ubuntu2
PackageArchitecture: i386
ProcCmdline: gnome-panel --sm-client-id 117f000101000120485398000000055670000 --screen 0
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: gnome-panel
StacktraceTop:
 g_object_get () from /usr/lib/libgobject-2.0.so.0
 ?? () from /usr/lib/libgtk-x11-2.0.so.0
 ?? ()
 ?? () from /usr/lib/libgtk-x11-2.0.so.0
 ?? ()
Title: gnome-panel crashed with SIGSEGV in g_object_get()
Uname: Linux 2.6.24-11-generic i686
UserGroups: adm admin audio cdrom dialout dip floppy fuse lpadmin plugdev video

Tags: apport-crash
Revision history for this message
Glenn (glenn-v) wrote :
Revision history for this message
Apport retracing service (apport) wrote : Symbolic stack trace

StacktraceTop:IA__g_object_get (_object=0xaaaaaaaa,
gtk_tooltip_run_requery (widget=0xbf88e068,
_gtk_tooltip_handle_event (event=0x83bce40)
IA__gtk_main_do_event (event=0x83bce40)
gdk_event_dispatch (source=0x80eff78, callback=0,

Revision history for this message
Apport retracing service (apport) wrote : Symbolic threaded stack trace
Changed in gnome-panel:
importance: Undecided → Medium
Revision history for this message
Pedro Villavicencio (pedro) wrote :

Thanks for your report, is this still an issue with latest package? May you tell us a few steps in order to reproduce the crash? thanks.

Changed in gnome-panel:
assignee: nobody → desktop-bugs
status: New → Incomplete
Revision history for this message
Glenn (glenn-v) wrote :

Yes, just now, using a fully updated system, I can still get this crash. Also, I just found an easier way than I previously described to reproduce this crash.

Steps:
1. Enable Compiz
2. Add Workspace Switcher to gnome-panel
3. Move mouse over workspace switcher and wait until tooltip appears
4. Quickly move your mouse onto the tooltip, it doesn't happen most of the time, but sometimes, gnome-panel will vanish (crash), and a crash report window pops up.

I can't reproduce this crash with any of the other applet's tooltips on the panel.

Attached is a picture of the tooltip (it normal isn't transparent, but for some reason it fades when I take a screenshot)

Changed in gnome-panel:
status: Incomplete → New
Revision history for this message
Florent Mertens (givre) wrote :

I think i can also reproduce this crash.

It's have to do with the new tooltip.
My way to reproduce it is :

1. enable compiz
2. move the mouse over the workspace switcher
3. as soon as the tooltip appears, click on a workspace (different than your current one, of course)
4. repeat with different delay until it crash

The tooltip is created by libwnck22.
If i rebuild this package without the patch that add this tooltip (02_expose_wm_keybindings.patch)
it don't crash anymore.

Revision history for this message
Florent Mertens (givre) wrote :
Revision history for this message
Florent Mertens (givre) wrote :
Revision history for this message
Sebastien Bacher (seb128) wrote :

the valgrind log shows that's an issue in libcompizconfig and due to the tooltip changes, mirco could you look at the issue?

Changed in gnome-panel:
assignee: desktop-bugs → macslow
importance: Medium → High
milestone: none → ubuntu-8.04
Revision history for this message
Mirco Müller (macslow) wrote :

I still have to trigger the crash here. Sofar not been able to reproduce this. But I think I've got enough hints to tackle it.

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