[Bug 43257] Re: dual head X causes panel to crash.

[cius]

There is a lot here, I hope its what you need.  I tried to follow the
commands you gave, but I do not have much experience using gdb, so I'm
not sure I did it properly.  Let me know if you need more.

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This GDB was configured as "i486-linux-gnu".
Attaching to process 9594
Reading symbols from /usr/bin/gnome-panel...(no debugging symbols found)...done.
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
(no debugging symbols found)
Reading symbols from /usr/lib/libgnome-desktop-2.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnome-desktop-2.so.2
Reading symbols from /usr/lib/libgnomeui-2.so.0...(no debugging symbols found)..
.done.
Loaded symbols for /usr/lib/libgnomeui-2.so.0
Reading symbols from /usr/lib/libglade-2.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libglade-2.0.so.0
Reading symbols from /usr/lib/libgnome-menu.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnome-menu.so.2
Reading symbols from /usr/lib/libbonoboui-2.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libbonoboui-2.so.0
Reading symbols from /usr/lib/libgnomecanvas-2.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnomecanvas-2.so.0
Reading symbols from /usr/lib/libgnome-2.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnome-2.so.0
Reading symbols from /usr/lib/libart_lgpl_2.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libart_lgpl_2.so.2
Reading symbols from /usr/lib/libgnomevfs-2.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnomevfs-2.so.0
Reading symbols from /usr/lib/libbonobo-2.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libbonobo-2.so.0
Reading symbols from /usr/lib/libgconf-2.so.4...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgconf-2.so.4
Reading symbols from /usr/lib/libbonobo-activation.so.4...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libbonobo-activation.so.4
Reading symbols from /usr/lib/libORBit-2.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libORBit-2.so.0
Reading symbols from /usr/lib/liblaunchpad-integration.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/liblaunchpad-integration.so.0
Reading symbols from /usr/lib/libgtk-x11-2.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgtk-x11-2.0.so.0
Reading symbols from /usr/lib/libgdk-x11-2.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgdk-x11-2.0.so.0
Reading symbols from /usr/lib/libatk-1.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libatk-1.0.so.0
Reading symbols from /usr/lib/libgdk_pixbuf-2.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgdk_pixbuf-2.0.so.0
Reading symbols from /lib/tls/i686/cmov/libm.so.6...
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libm.so.6
Reading symbols from /usr/lib/libpango-1.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpango-1.0.so.0
Reading symbols from /usr/lib/libcairo.so.2...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libcairo.so.2
Reading symbols from /usr/lib/libgobject-2.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgobject-2.0.so.0
Reading symbols from /usr/lib/libglib-2.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libglib-2.0.so.0
Reading symbols from /usr/lib/libX11.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libX11.so.6
Reading symbols from /lib/tls/i686/cmov/libpthread.so.0...
(no debugging symbols found)...done.
[Thread debugging using libthread_db enabled]
[New Thread -1223624320 (LWP 9594)]
[New Thread -1252975696 (LWP 9595)]
Loaded symbols for /lib/tls/i686/cmov/libpthread.so.0
Reading symbols from /lib/tls/i686/cmov/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libc.so.6
Reading symbols from /usr/lib/libXau.so.6...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXau.so.6
Reading symbols from /usr/lib/libSM.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libSM.so.6
Reading symbols from /usr/lib/libICE.so.6...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libICE.so.6
Reading symbols from /usr/lib/libgnome-keyring.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnome-keyring.so.0
Reading symbols from /usr/lib/libxml2.so.2...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libxml2.so.2
Reading symbols from /usr/lib/libz.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libz.so.1
Reading symbols from /lib/libpopt.so.0...
(no debugging symbols found)...done.
Loaded symbols for /lib/libpopt.so.0
Reading symbols from /usr/lib/libpangoft2-1.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpangoft2-1.0.so.0
Reading symbols from /usr/lib/libpangocairo-1.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpangocairo-1.0.so.0
Reading symbols from /usr/lib/libfontconfig.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libfontconfig.so.1
Reading symbols from /usr/lib/libXext.so.6...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXext.so.6
Reading symbols from /usr/lib/libXrender.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXrender.so.1
Reading symbols from /usr/lib/libXinerama.so.1...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXinerama.so.1
Reading symbols from /usr/lib/libXi.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXi.so.6
Reading symbols from /usr/lib/libXrandr.so.2...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXrandr.so.2
Reading symbols from /usr/lib/libXcursor.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXcursor.so.1
Reading symbols from /usr/lib/libXfixes.so.3...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXfixes.so.3
Reading symbols from /usr/lib/libgmodule-2.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgmodule-2.0.so.0
Reading symbols from /lib/tls/i686/cmov/libdl.so.2...
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libdl.so.2
Reading symbols from /usr/lib/libgthread-2.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgthread-2.0.so.0
Reading symbols from /usr/lib/libstartup-notification-1.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libstartup-notification-1.so.0
Reading symbols from /usr/lib/libjpeg.so.62...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libjpeg.so.62
Reading symbols from /usr/lib/libesd.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libesd.so.0
Reading symbols from /usr/lib/libaudiofile.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libaudiofile.so.0
Reading symbols from /usr/lib/libgnutls.so.12...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnutls.so.12
Reading symbols from /usr/lib/libavahi-glib.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libavahi-glib.so.1
Reading symbols from /usr/lib/libavahi-common.so.3...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libavahi-common.so.3
Reading symbols from /usr/lib/libavahi-client.so.3...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libavahi-client.so.3
Reading symbols from /lib/tls/i686/cmov/libresolv.so.2...
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libresolv.so.2
Reading symbols from /lib/tls/i686/cmov/libutil.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libutil.so.1
Reading symbols from /usr/lib/libORBitCosNaming-2.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libORBitCosNaming-2.so.0
Reading symbols from /lib/ld-linux.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /usr/lib/libpng12.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpng12.so.0
Reading symbols from /usr/lib/libfreetype.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libfreetype.so.6
Reading symbols from /usr/lib/libexpat.so.1...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libexpat.so.1
Reading symbols from /usr/lib/libasound.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libasound.so.2
Reading symbols from /usr/lib/libtasn1.so.2...
---Type <return> to continue, or q <return> to quit---
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libtasn1.so.2
Reading symbols from /usr/lib/libgcrypt.so.11...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgcrypt.so.11
Reading symbols from /usr/lib/libgpg-error.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgpg-error.so.0
Reading symbols from /usr/lib/libdbus-1.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libdbus-1.so.2
Reading symbols from /lib/tls/i686/cmov/libnsl.so.1...
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libnsl.so.1
Reading symbols from /lib/tls/i686/cmov/libnss_compat.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libnss_compat.so.2
Reading symbols from /lib/tls/i686/cmov/libnss_nis.so.2...
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libnss_nis.so.2
Reading symbols from /lib/tls/i686/cmov/libnss_files.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libnss_files.so.2
Reading symbols from /usr/lib/gconv/ISO8859-1.so...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/gconv/ISO8859-1.so
Reading symbols from /usr/lib/gtk-2.0/2.4.0/engines/libsmooth.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/gtk-2.0/2.4.0/engines/libsmooth.so
Reading symbols from /usr/lib/pango/1.5.0/modules/pango-basic-fc.so...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/pango/1.5.0/modules/pango-basic-fc.so
Reading symbols from /usr/lib/gtk-2.0/2.4.0/loaders/libpixbufloader-png.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/gtk-2.0/2.4.0/loaders/libpixbufloader-png.so
Reading symbols from /usr/lib/gnome-vfs-2.0/modules/libfile.so...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/gnome-vfs-2.0/modules/libfile.so
Reading symbols from /usr/lib/libfam.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libfam.so.0
Reading symbols from /usr/lib/bonobo/monikers/libmoniker_std_2.so...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/bonobo/monikers/libmoniker_std_2.so
Reading symbols from /usr/lib/libnotification-area-applet.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libnotification-area-applet.so
Reading symbols from /usr/lib/libpanel-applet-2.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpanel-applet-2.so.0
Reading symbols from /usr/lib/liblpint-bonobo.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/liblpint-bonobo.so.0

Reading symbols from /usr/lib/libwnck-applet.so...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libwnck-applet.so
Reading symbols from /usr/lib/libwnck-1.so.18...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libwnck-1.so.18
Reading symbols from /usr/lib/libXRes.so.1...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXRes.so.1
Reading symbols from /usr/lib/libglade/2.0/libgnome.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libglade/2.0/libgnome.so
Reading symbols from /usr/lib/libglade/2.0/libbonobo.so...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libglade/2.0/libbonobo.so
Reading symbols from /usr/lib/gtk-2.0/2.4.0/filesystems/libgnome-vfs.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/gtk-2.0/2.4.0/filesystems/libgnome-vfs.so
Reading symbols from /usr/lib/gtk-2.0/2.4.0/loaders/svg_loader.so...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/gtk-2.0/2.4.0/loaders/svg_loader.so
Reading symbols from /usr/lib/librsvg-2.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/librsvg-2.so.2
Reading symbols from /usr/lib/libgsf-1.so.113...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgsf-1.so.113
Reading symbols from /usr/lib/libcroco-0.6.so.3...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libcroco-0.6.so.3
Reading symbols from /lib/libbz2.so.1.0...
(no debugging symbols found)...done.
Loaded symbols for /lib/libbz2.so.1.0
0xffffe410 in __kernel_vsyscall ()
(gdb) continue
Continuing.

Program exited with code 01.
(gdb) thread apply all bt
(gdb)

-- 
dual head X causes panel to crash.
https://launchpad.net/bugs/43257