SIGSEGV in g_atomic_int_get

Bug Description

Binary package hint: unity

Got this when trying to unpin a launcher. Backtrace attached.

To reproduce:

* Copy /usr/share/applications/foo.desktop to ~/.local/share/applications (I used gcalctool)
* Start foo.desktop via the Ubuntu logo -> /usr/share/applications/
* Pin the running foo launcher and quit the application
=> the favorites now contain 'foo.desktop' (checked via gsettings get ...)
* Unpin the running foo launcher
=> Compiz crashes

The last messages I get on the console are:

** (<unknown>:12267): WARNING **: Unable to remove favorite '/usr/share/applications/gcalctool.desktop': Does not exist in favorites

(<unknown>:12267): GLib-CRITICAL **: g_variant_new_string: assertion `g_utf8_validate (string, -1, NULL)' failed

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: unity 3.2.6-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.37-8.21-generic 2.6.37-rc4
Uname: Linux 2.6.37-8-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
CompizPlugins: No value set for `/apps/compiz/general/allscreens/options/active_plugins'
Date: Sat Dec 11 00:25:31 2010
Lsusb:
Bus 002 Device 002: ID 046d:c048 Logitech, Inc.
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 058f:6362 Alcor Micro Corp. Flash Card Reader/Writer
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
PciDisplay: 05:00.0 VGA compatible controller [0300]: nVidia Corporation NV43 [GeForce 6600 GT] [10de:0140] (rev a2) (prog-if 00 [VGA controller])
ProcEnviron:
LANGUAGE=en_US.utf8
LANG=en_US.utf8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.37-8-generic root=UUID=025c4231-b78a-48bf-93e9-d20c5b5ce8e3 ro crashkernel=384M-2G:64M,2G-:128M quiet splash bootchart=disable acpi_enforce_resources=lax vga=792
ProcVersionSignature_: Ubuntu 2.6.37-8.21-generic 2.6.37-rc4
RelatedPackageVersions:
xserver-xorg 1:7.5+6ubuntu3b1
libgl1-mesa-glx 7.9+repack-1ubuntu3
libdrm2 2.4.22-2ubuntu1
xserver-xorg-video-intel 2:2.13.901-2ubuntu1
xserver-xorg-video-ati 1:6.13.2-1ubuntu2
SourcePackage: unity
dmi.bios.date: 03/29/2006
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 6.00 PG
dmi.board.name: LP NF4 Series
dmi.board.vendor: DFI Corp,LTD
dmi.board.version: 1.0
dmi.chassis.type: 3
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd03/29/2006:svn:pn:pvr:rvnDFICorp,LTD:rnLPNF4Series:rvr1.0:cvn:ct3:cvr:
system: distro = Ubuntu, architecture = i686, kernel = 2.6.37-8-generic

Before the crash (directly after pinning), the launcher starts /usr/share/applications/foo.desktop.

After the crash (or a Compiz restart) the launcher starts ~/.local/share/applications/foo.desktop instead (even though the favorites just show 'foo.desktop'). If that's the case I can unpin the launcher without a crash.

Also, pinning and unpinning ~/.local/share/applications/foo.desktop doesn't cause any issues.

Even if the backtrace is not complete (did you installed debug symbols for bamf and unity?), there are enough info to reproduce the crash. Thanks Hernando :)

As complete as I could get it.

Still happening with unity 3.2.12-0ubuntu2.

Still happening with 3.4.4-0ubuntu2.

I can reproduce the issue systematically with the konversation launcher. The trace is similar to Hernando's.

bug #737656 seems similar

It doesn't crash for me anymore.

This bug was fixed in the package unity - 3.8.4-0ubuntu1

---------------
unity (3.8.4-0ubuntu1) natty; urgency=low

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