nepomukservicestub crashed with SIGSEGV in QObject::~QObject()

[Chris Smith]

Crash occurred just following login.
I believe it's when trying to start Ubuntu One.

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: nepomuk-core 4:4.9.2-0ubuntu2
ProcVersionSignature: Ubuntu 3.5.0-17.27-generic 3.5.5
Uname: Linux 3.5.0-17-generic x86_64
ApportVersion: 2.6.1-0ubuntu1
Architecture: amd64
Date: Thu Oct 4 18:52:40 2012
Disassembly: => 0x0: Cannot access memory at address 0x0
ExecutablePath: /usr/bin/nepomukservicestub
InstallationMedia: Kubuntu 12.10 "Quantal Quetzal" - Beta amd64 (20120926.3)
ProcCmdline: /usr/bin/nepomukservicestub nepomukstorage
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x0: Cannot access memory at address 0x0
 PC (0x00000000) not located in a known VMA region (needed executable region)!
SegvReason: executing NULL VMA
Signal: 11
SourcePackage: nepomuk-core
StacktraceTop:
 ?? ()
 QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
 QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
 _start ()
Title: nepomukservicestub crashed with SIGSEGV in QObject::~QObject()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 ?? ()
 QObject::~QObject (this=0x10d2c30, __in_chrg=<optimized out>) at kernel/qobject.cpp:854
 QObject::~QObject (this=0x10d2c30, __in_chrg=<optimized out>) at kernel/qobject.cpp:940
 signalHandler (signal=<optimized out>) at ../../servicestub/main.cpp:51
 (anonymous namespace)::signalHandler (signal=<optimized out>) at ../../servicestub/main.cpp:45