Banshee crashes on very short mp3s

[Alistair Buxton]

Binary package hint: banshee

While testing bug 396268 I found this easily reproducable crash in Banshee. Simply import a very short MP3 (eg 0.1 seconds) into the library and set it to repeat single. Eventually Banshee will crash with this error:

Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object
at Banshee.Sources.PrimarySource/<OnTracksChanged>c__AnonStorey19.<>m__13 () <0x00054>
at Hyena.ThreadAssist.SpawnFromMain (System.Threading.ThreadStart) <0x0002f>
at Banshee.Sources.PrimarySource.OnTracksChanged (Hyena.Query.QueryField[]) <0x00073>
at Banshee.Sources.PrimarySource.NotifyTracksChanged (Hyena.Query.QueryField[]) <0x0001b>
at Banshee.Collection.Database.DatabaseTrackInfo.Save (bool,Hyena.Query.QueryField[]) <0x00263>
at Banshee.Collection.Database.DatabaseTrackInfo.UpdateLastPlayed () <0x0006f>
at Banshee.GStreamer.PlayerEngine.OnAboutToFinish (intptr) <0x0001d>
at (wrapper native-to-managed) Banshee.GStreamer.PlayerEngine.OnAboutToFinish (intptr) <0x0006f>

I won't upload the MP3 again, it's available here:
https://bugs.launchpad.net/banshee/+bug/396268/+attachment/2018058/+files/short.mp3

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: banshee 1.8.1-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.35-25.44-generic 2.6.35.10
Uname: Linux 2.6.35-25-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Mon Apr 11 17:32:10 2011
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
ProcEnviron:
 PATH=(custom, user)
 LANG=en_GB.utf8
 SHELL=/bin/bash
SourcePackage: banshee

[Alistair Buxton (a-j-buxton)]

Reproduced with Banshee 2.0 from the daily-ppa, with this output:

Stacktrace:

Native stacktrace:

 banshee() [0x48563b]
 banshee() [0x4d275f]
 /lib/libpthread.so.0(+0xfb40) [0x7f361dd79b40]
 [0x7f361e9d3fd8]

Debug info from gdb:

Could not attach to process. If your uid matches the uid of the target
process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try
again as the root user. For more details, see /etc/sysctl.d/10-ptrace.conf
ptrace: Operation not permitted.

=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================

Aborted

[Alistair Buxton (a-j-buxton)]

upstream bug was marked duplicate, so changing url to that of master bug, because apparently launchpad doesn't know how