gvfsd-mtp crashed with SIGSEGV in backend_died()

[Iain Lane]

Mounted and ejected my Android (MTP) phone a coulpe of times

ProblemType: Crash
DistroRelease: Ubuntu 13.04
Package: gvfs-backends 1.15.3-0ubuntu2
ProcVersionSignature: Ubuntu 3.8.0-10.19-generic 3.8.2
Uname: Linux 3.8.0-10-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.9-0ubuntu2
Architecture: amd64
Date: Wed Mar 6 10:05:30 2013
ExecutablePath: /usr/lib/gvfs/gvfsd-mtp
InstallationDate: Installed on 2012-10-07 (149 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Beta amd64 (20121007)
MarkForUpload: True
ProcCmdline: /usr/lib/gvfs/gvfsd-mtp --spawner :1.9 /org/gtk/gvfs/exec_spaw/3
ProcEnviron:
 SHELL=/bin/zsh
 XDG_RUNTIME_DIR=<set>
 PATH=(custom, user)
 LANGUAGE=en_GB:en
 LANG=en_GB.UTF-8
SegvAnalysis:
 Segfault happened at: 0x7fcbe42f40bc: mov 0x20(%rax),%rax
 PC (0x7fcbe42f40bc) ok
 source "0x20(%rax)" (0xaaaaaaaaaaaaaaca) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: gvfs
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/gvfs/libgvfsdaemon.so
 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_object_unref () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_value_unset () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: gvfsd-mtp crashed with SIGSEGV in g_object_unref()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip kvm libvirtd lpadmin plugdev sambashare sudo vboxusers

[Apport retracing service (apport)]

StacktraceTop:
 backend_died (monitor=0x7fcbd40019e0, old_backend=<optimized out>) at gvfsmonitor.c:77
 weak_refs_notify (data=0x7fcbd400b420) at /build/buildd/glib2.0-2.35.8/./gobject/gobject.c:2470
 g_object_unref (_object=0x7fcbdc006620) at /build/buildd/glib2.0-2.35.8/./gobject/gobject.c:2987
 g_value_unset (value=value@entry=0x7fff402f5d90) at /build/buildd/glib2.0-2.35.8/./gobject/gvalue.c:274
 g_signal_emit_valist (instance=0x7fcbdc006620, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fff402f5fd8) at /build/buildd/glib2.0-2.35.8/./gobject/gsignal.c:3344

[Launchpad Janitor (janitor)]

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