Ubuntu
gnome-session package

Gnome-session-manager crashes when some dbus apps run

Bug #56583 reported by QuinnStorm
2
Affects Status Importance Assigned to Milestone
gnome-session (Ubuntu)
Invalid
Undecided
Ubuntu Desktop Bugs

Bug Description

Binary package hint: gnome-session

It appears its a pointer bug of some kind, bt follows. The bug might actually be in libdbus-glib, I'm not sure. The stuff above <signal handler called> is where it tried to launch bug-buddy, but failed, since bug-buddy asked about a session manager, and locked (like all apps do until you remove its /tmp/.ICE-unix/$PID)

(gdb) bt
#0 0xffffe410 in __kernel_vsyscall ()
#1 0xb7873333 in __waitpid_nocancel () from /lib/tls/i686/cmov/libpthread.so.0
#2 0xb7f0e558 in gnome_gtk_module_info_get () from /usr/lib/libgnomeui-2.so.0
#3 <signal handler called>
#4 0xb7856b53 in dbus_g_method_return_error ()
   from /usr/lib/libdbus-glib-1.so.2
#5 0xb77fdd28 in g_slist_find_custom () from /usr/lib/libglib-2.0.so.0
#6 0xb785ad0c in dbus_g_proxy_set_interface ()
   from /usr/lib/libdbus-glib-1.so.2
#7 0xb72197f8 in dbus_connection_dispatch () from /usr/lib/libdbus-1.so.2
#8 0xb7852a15 in dbus_server_setup_with_g_main ()
   from /usr/lib/libdbus-glib-1.so.2
#9 0xb77e70c8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#10 0xb77e9e62 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#11 0xb77ea20c in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#12 0xb7c9c052 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#13 0x08053c57 in ?? ()
#14 0x080a5c48 in ?? ()
#15 0x080a92b8 in ?? ()
#16 0x00000000 in ?? ()
(gdb)

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

Thanks for your bug. What version of Ubuntu do you use? Do you have a dbus application example triggering that crash?

Changed in gnome-session:
assignee: nobody → desktop-bugs
status: Unconfirmed → Needs Info
Revision history for this message
QuinnStorm (livinglatexkali) wrote : Re: [Bug 56583] Re: Gnome-session-manager crashes when some dbus apps run

Sorry, I meant to mention that. I use edgy, and one good example that
triggers it is compiz, another being cgwd, I know they are both
unsupported applications (at least the versions I run), but either way
they should not be able to trigger a crash in gnome-session-manager.

The best way I know of to trigger the crash is to stop and start one or
both of them a few times. The crash is not 100% reliable, but will
eventually happen. Because gnome-session-manager is the sm, it won't
let any other apps start, so you won't see it crashed until you look in
the process list and see that it spawned a bug-buddy, or see that you
can't start any more X apps.

On Thu, 17 Aug 2006 07:46:54 -0000
Sebastien Bacher <email address hidden> wrote:

> Thanks for your bug. What version of Ubuntu do you use? Do you have a
> dbus application example triggering that crash?
>
> ** Changed in: gnome-session (Ubuntu)
> Assignee: (unassigned) => Ubuntu Desktop Bugs
> Status: Unconfirmed => Needs Info
>

Revision history for this message
Daniel Holbach (dholbach) wrote :

It'd be nice to get another backtrace with libglib2.0-0-dbg libgtk2.0-0-dbg libc6-dbg libgnomeui-0-dbg and debug builds of gnome-session and dbus installed. (http://wiki.ubuntu.com/DebuggingProgramCrash might help there.)

Revision history for this message
lithorus (lithorus) wrote :

It seems to be a libdbus linking problem in cgwd/compiz.

See this for further explanation :
http://www.compiz.net/post-36367

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

closing, previous comment status that's a compiz bug

Changed in gnome-session:
status: Needs Info → Rejected
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