deja-dup-monitor crashed with SIGSEGV in g_object_unref()

[Eliah Kagan]

On a Precise i386 system on a VMware Workstation 8.0.0 build-471780 virtual machine, in a Unity 2D session with deja-dup 21.1-0ubuntu2, I started to update the system with "sudo apt-get upgrade" and, when I returned to the system, the update had completed successfully but Apport informed me that deja-dup-monitor had crashed with SIGSEGV in g_object_unref(). I've attached the Terminal log and also /var/log/dpkg.log. I think this is bug 869453 but I'm not entirely sure since the stack trace doesn't have symbols, so I'll wait for Apport retracing service to look at it.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: deja-dup 21.1-0ubuntu2
ProcVersionSignature: Ubuntu 3.1.0-2.3-generic 3.1.0
Uname: Linux 3.1.0-2-generic i686
ApportVersion: 1.25-0ubuntu1
Architecture: i386
Date: Wed Nov 9 12:34:23 2011
ExecutablePath: /usr/lib/deja-dup/deja-dup/deja-dup-monitor
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
ProcCmdline: /usr/lib/deja-dup/deja-dup/deja-dup-monitor
SegvAnalysis:
 Segfault happened at: 0x1a8cbb: mov (%eax),%edx
 PC (0x001a8cbb) ok
 source "(%eax)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%edx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: deja-dup
StacktraceTop:
 ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
 ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
 ?? ()
 g_object_unref () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
 ?? ()
Title: deja-dup-monitor crashed with SIGSEGV in g_object_unref()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 g_settings_backend_unsubscribe (backend=0x0, name=0x0) at /build/buildd/glib2.0-2.30.1/./gio/gsettingsbackend.c:859
 g_settings_finalize (object=0x8449b90) at /build/buildd/glib2.0-2.30.1/./gio/gsettings.c:555
 deja_dup_simple_settings_finalize (obj=0x8449b90) at SimpleSettings.c:233
 g_object_unref (_object=0x8449b90) at /build/buildd/glib2.0-2.30.1/./gobject/gobject.c:2746
 deja_dup_convert_ssh_to_file () at CommonUtils.c:1574

[Eliah Kagan (degeneracypressure)]

The symbolic retrace makes this look like it is a duplicate of bug 869453, as originally suspected. However, there are some extra steps in the stack trace, so I am not completely sure.