Bug#667061: gnome-shell fails to load segfaulting

[Romain Couturat]

Package: gnome-shell
Version: 3.2.2.1-3

 When trying to lad gnome-shell from gdm, it crashes.
 I followed instruction for debugging from
 http://live.gnome.org/GnomeShell/Debugging
 here is the output :

me at debian:~$ ~/xenv.sh
8126
me at debian:~$ gdb gnome-shell
GNU gdb (GDB) 7.4-debian
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html
>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/bin/gnome-shell...(no debugging symbols
found)...done.
(gdb) run --replace
Starting program: /usr/bin/gnome-shell --replace
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Gtk-Message: Failed to load module "canberra-gtk-module"

** (gnome-shell:8323): CRITICAL **: dbus_g_proxy_new_for_name: assertion
`connection != NULL' failed

** (gnome-shell:8323): CRITICAL **: dbus_g_proxy_call: assertion
`DBUS_IS_G_PROXY (proxy)' failed

Program received signal SIGSEGV, Segmentation fault.
0x0000000000402d52 in main ()
(gdb) bt
#0  0x0000000000402d52 in main ()
(gdb) bt
#0  0x0000000000402d52 in main ()
(gdb) t a a bt

Thread 1 (Thread 0x7ffff7fa69a0 (LWP 8323)):
#0  0x0000000000402d52 in main ()
(gdb) call gjs_dumpstack ()
$1 = 2
(gdb)


I am using today's latest packages from sid (the bt is from a fully up to
date system).
I did not restart gnome shell or my system for say, a week, so the bug may
not come from latest package releases.
I tried to downgrade gnome-shell and gnome-shell-common to 3.2.2.1-2 (from
wheezy), no luck.
Then I tried to downgrade dbus (even if that no might be a good idea) to
actual wheezy version, same problem .
Finally I downgraded gnome-shell (and according direct dependencies) to
3.2.1-8, as I am sure it was a previous working version.
Still no luck.
That's making me thinking that the bug might not come from gnome-shell
package itself.

Not accessing the computer right now, I will post more information
regarding this bug shortly.
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