[apport] gnome-panel crashed with SIGSEGV in g_type_check_instance_is_a()

[yosefrow]

Binary package hint: gnome-panel

Gnome panel crashes everytime i do an upgrade

ProblemType: Crash
Architecture: i386
CrashCounter: 1
Date: Thu Apr 5 04:12:44 2007
DistroRelease: Ubuntu 7.04
ExecutablePath: /usr/bin/gnome-panel
Package: gnome-panel 2.18.0-0ubuntu3
PackageArchitecture: i386
ProcCmdline: gnome-panel --sm-client-id default1
ProcCwd: /home/sysadmin
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: gnome-panel
StacktraceTop:
 ?? () from /lib/tls/i686/cmov/libc.so.6
 g_type_check_instance_is_a ()
 malloc () from /lib/tls/i686/cmov/libc.so.6
 g_malloc () from /usr/lib/libglib-2.0.so.0
 g_strdup () from /usr/lib/libglib-2.0.so.0
Uname: Linux h-ubuntu3 2.6.20-13-generic #2 SMP Sun Mar 25 00:21:25 UTC 2007 i686 GNU/Linux
UserGroups: adm admin audio cdrom dialout dip floppy lpadmin netdev plugdev powerdev scanner video

[Apport retracing service (apport)]

StacktraceTop:_int_malloc () from /lib/tls/i686/cmov/libc.so.6
malloc () from /lib/tls/i686/cmov/libc.so.6
IA__g_malloc (n_bytes=1) at gmem.c:131
IA__g_strdup (str=0x839fce0 "") at gstrfuncs.c:91
gtk_label_recalculate (label=0x842bbb8) at gtklabel.c:1153

[Sebastien Bacher (seb128)]

Thanks for your bug report. The crash looks like a memory corruption. Could you try to get a valgrind log for it (you can follow the instructions from https://wiki.ubuntu.com/Valgrind for that)?

[yosefrow (yosefrow)]

ok a little update, it doesnt crash every time , only when certain packages are updated a certain way, I have yet to find out which ones and how. I prepared my system for debugging however in order to use valgrind I have to run an instance of the program using valgrind. Unfortunately the program in this case is gnome-panel and it only allows one instance. killing gnome-panel automatically restarts it and I have no idea how to permanantly kill it so that I can run an instance of gnome-panel under valgrind.

[Sebastien Bacher (seb128)]

duplicate of bug #85776, you can use gnome-session-remove gnome-panel to stop it and run it under valgrind then