rhythmbox crashed with SIGSEGV in tracker_evt_update_orphan_item_cb() (when grilo media tracker is enabled)

[Kakurady Drakenar]

rhythmbox has been crashing without apport showing up, so I used gdb to get a stack trace and generate a core file.

This might be a bug in grilo.

gdb output:

Core was generated by `/usr/bin/rhythmbox'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007fffb27637af in tracker_evt_update_orphan_item_cb (
    object=<optimized out>, result=<optimized out>, evt=0x2756480)
    at grl-tracker-source-notif.c:222
222 grl-tracker-source-notif.c: 没有那个文件或目录.
[Current thread is 1 (Thread 0x7ffff7eefa80 (LWP 21295))]
(gdb) bt
#0 0x00007fffb27637af in tracker_evt_update_orphan_item_cb (object=<optimized out>, result=<optimized out>, evt=0x2756480) at grl-tracker-source-notif.c:222
#1 0x00007ffff15f8407 in g_simple_async_result_complete (simple=0x25d4d80 [GSimpleAsyncResult])
    at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./gio/gsimpleasyncresult.c:801
#2 0x00007ffff15f8489 in complete_in_idle_cb_for_thread (_data=0x28622e0)
    at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./gio/gsimpleasyncresult.c:872
#3 0x00007ffff6910fda in g_main_context_dispatch (context=0x643800)
    at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gmain.c:3154
#4 0x00007ffff6910fda in g_main_context_dispatch (context=context@entry=0x643800) at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gmain.c:3769
#5 0x00007ffff6911380 in g_main_context_iterate (context=context@entry=0x643800, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>)
    at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gmain.c:3840
#6 0x00007ffff691142c in g_main_context_iteration (context=context@entry=0x643800, may_block=may_block@entry=1)
    at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./glib/gmain.c:3901
#7 0x00007ffff162fbcd in g_application_run (application=0x64b180 [RBApplication], argc=argc@entry=1, argv=argv@entry=0x7fffffffe028)
    at /build/glib2.0-SNH0tt/glib2.0-2.47.6/./gio/gapplication.c:2363
#8 0x00007ffff7acf125 in rb_application_run (app=0x64b180 [RBApplication], argc=argc@entry=1, argv=argv@entry=0x7fffffffe028) at rb-application.c:659
#9 0x0000000000400d1a in main (argc=1, argv=0x7fffffffe028) at main.c:89

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: rhythmbox 3.3-1ubuntu5
ProcVersionSignature: Ubuntu 4.4.0-12.28-generic 4.4.4
Uname: Linux 4.4.0-12-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CurrentDesktop: GNOME
Date: Mon Mar 14 08:26:09 2016
ExecutablePath: /usr/bin/rhythmbox
InstallationDate: Installed on 2016-03-03 (10 days ago)
InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160303)
SourcePackage: rhythmbox
UpgradeStatus: No upgrade log present (probably fresh install)