gdmsetup crashed with SIGSEGV in g_main_context_dispatch()

[John W.]

Binary package hint: gdm

This was originally reported in https://bugs.launchpad.net/bugs/246088, but was closed requesting that a new crash file be submitted via apport.

ProblemType: Crash
Architecture: i386
Date: Tue Jul 29 10:19:20 2008
Disassembly: 0x0:
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/sbin/gdmsetup
NonfreeKernelModules: nvidia
Package: gdm 2.20.7-0ubuntu1.1
PackageArchitecture: i386
ProcCmdline: /usr/sbin/gdmsetup
ProcCwd: /home/john
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/X11R6/bin
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: gdm
StacktraceTop:
 ?? ()
 ?? () from /usr/lib/libgio-2.0.so.0
 ?? () from /usr/lib/libgio-2.0.so.0
 ?? () from /usr/lib/libglib-2.0.so.0
 g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
Title: gdmsetup crashed with SIGSEGV in g_main_context_dispatch()
Uname: Linux 2.6.24-20-generic i686
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:?? ()
g_simple_async_result_get_op_res_gboolean ()
g_loadable_icon_get_type () from /usr/lib/libgio-2.0.so.0
?? () from /usr/lib/libglib-2.0.so.0
g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0

[Apport retracing service (apport)]

StacktraceTop:?? ()
run_in_thread (job=0x89081c0, c=0x0, _data=0x837aaa8)
run_job_at_idle (data=0x89081c0) at /build/buildd/glib2.0-2.16.4/gio/gioscheduler.c:197
g_idle_dispatch (source=0x83f2a08, callback=0x817c1d8, user_data=0x89081c0)
IA__g_main_context_dispatch (context=0x809e2d0) at /build/buildd/glib2.0-2.16.4/glib/gmain.c:2012

[Sebastien Bacher (seb128)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please try to obtain a valgrind log following the instructions at https://wiki.ubuntu.com/Valgrind and attach the file to the bug report. This will greatly help us in tracking down your problem.

Do you get the issue every time? Is that specific to gdm or do you get similar using running other gtk application use sudo too?

[Vinay Sajip (vinay-sajip)]

I can confirm that it happens every time for me (Linux ubuntu 2.6.24-19-generic #1 SMP Wed Jun 18 14:43:41 UTC 2008 i686 GNU/Linux)

It does not happen with e.g. synaptic, but happens every time with gdmsetup. I am running from a root shell after running "sudo su".

[John W. (johnwelch78)]

Hi there,

The issue is specific to gdmsetup, and happens every single time. Valgrind attached.

[Sebastien Bacher (seb128)]

could you install libglib2.0-0-dbg and get a new log?

[John W. (johnwelch78)]

Greetings Sebastien,

Thank you so much for all your help with this. Here's a new valgrind.log after installing libglib2.0-0-dbg.

Thanks again!
John

[Sebastien Bacher (seb128)]

The new log has detailed informations now, the crash still looks weird but upstream might have better idea on the issue, I've sent it on http://bugzilla.gnome.org/show_bug.cgi?id=545575

[Pedro Villavicencio (pedro)]

not gdm task, why did you opened this task Karel?

[Karel Zimmer (karelz)]

After a install 8.04.1 i get the problems as described in bug 246088.
> not gdm task, why did you opened this task Karel?
>
> ** Changed in: gdm (Ubuntu)
> Status: New => Invalid
>
>

[Sebastien Bacher (seb128)]

upstream bug question

"g_simple_async_result_run_in_thread has "g_return_if_fail (func != NULL)"

So, this should report some spew somewhere. You could break in g_log to find
it."