Do.exe crashed with SIGABRT in __GI_raise()

Bug #1344386 reported by Wellington Torrejais da Silva on 2014-07-18
This bug affects 3 people
Affects Status Importance Assigned to Milestone
glib2.0 (Ubuntu)
gnome-do (Ubuntu)
Chris Halse Rogers

Bug Description

Do.exe crashed with SIGABRT in __GI_raise()

ProblemType: Crash
DistroRelease: Ubuntu 14.10
Package: gnome-do 0.9-1build1
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic
Uname: Linux 3.13.0-32-generic x86_64
ApportVersion: 2.14.4-0ubuntu2
Architecture: amd64
CurrentDesktop: GNOME
Date: Fri Jul 18 17:47:01 2014
ExecutablePath: /usr/lib/gnome-do/Do.exe
InstallationDate: Installed on 2014-05-16 (63 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
InterpreterPath: /usr/bin/mono-sgen
ProcCmdline: /usr/bin/cli /usr/lib/gnome-do/Do.exe
Signal: 6
SourcePackage: gnome-do
 __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
 __GI_abort () at abort.c:89
 ?? () from /lib/x86_64-linux-gnu/
 gtk_main () from /usr/lib/x86_64-linux-gnu/
 ?? ()
Title: Do.exe crashed with SIGABRT in __GI_raise()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

tags: removed: need-amd64-retrace
information type: Private → Public
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in gnome-do (Ubuntu):
status: New → Confirmed
Barry Warsaw (barry) wrote :

By process of elimination (i.e. bisecting apt-get installs of all the dist-upgrade upgrading packages), I've narrowed this down to the following binary packages: libglib2.0-0 libglib2.0-bin libglib2.0-dev all part of the glib2.0 source package, version 2.41.2-1. In all likelihood it's the libglib2.0-0 (but harder to tell since all three must be upgraded at the same time).

I've also confirmed that no change rebuilds of mono and gnome-do do *not* fix the problem. Something deeper has changed in the latest glib2.0 package to break gnome-do at least, and perhaps the entire mono runtime.

Next I'll try to compare against Debian versions to see if anything out of sync needs updating.

Barry Warsaw (barry) wrote :

This seems to be the best I can manage for a traceback. Note that I had to manually hack /usr/lib/debug/usr/bin/ to be Python 3 compatible (will file a separate bug on that).

There are still some undefined symbols, but I can't suss out which packages are missing, and apport does not seem to want to cooperate to help me. Please let me know if there's more I information you want me to extract. OTOH, it's completely reproducible on utopic. Install gnome-do and then invoke that from the command line.

Chris Halse Rogers (raof) wrote :

Hm, thanks.

This seems to be triggered by a change to GMutex in glib 2.14.2 (good work on the bugfix release, guys ☺). I'll see if I can hunt down what's releasing the mutex glib thinks isn't held. I used to be able to get decent backtraces out of Mono!

Changed in gnome-do (Ubuntu):
assignee: nobody → Chris Halse Rogers (raof)
desrt (desrt) wrote :

GLib completely changed the implementation of GMutex from being based on POSIX primatives to being based on a home-grown solution that is substantially faster (and with room for further improvements).

This caused deadlocks/crashes in some Vala programs, and I wonder if the same thing is going on with Mono. See this bug:

Iain Lane (laney) wrote :

On stderr, the following is printed

  Attempt to unlock mutex that was not locked

this is an abort() within glib - it's what RAOF alluded to in comment #5.

desrt (desrt) wrote :

The new mutex implementation detects the (error) case when you try to unlock a mutex that is not locked.

Callers are supposed to acquire the Gtk lock before calling gtk_main() and I guess gnome-do isn't doing that...

POSIX silently ignores this...

desrt (desrt) wrote :

Invalid for glib since the bug is confirmed as being in gnome-do (not acquiring the lock before gtk_main).

Changed in glib2.0 (Ubuntu):
status: New → Invalid
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package gnome-do - 0.95.1-1ubuntu1

gnome-do (0.95.1-1ubuntu1) utopic; urgency=medium

  * Correctly call Gdk.Threads.Enter() before entering the GTK mainloop.
    (LP: #1344386)
 -- Christopher James Halse Rogers <email address hidden> Wed, 20 Aug 2014 11:01:39 +1000

Changed in gnome-do (Ubuntu):
status: Confirmed → Fix Released
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