nepomukserver crashed with SIGSEGV in QHashData::detach_helper2()

[martyfelker]

This bug is in Ubuntu 13.04. Appears randomly - but I am Gnome

ProblemType: Crash
DistroRelease: Ubuntu 13.04
Package: nepomuk-core 4:4.9.98-0ubuntu1
Uname: Linux 3.6.11-030611-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.8-0ubuntu4
Architecture: amd64
Date: Mon Feb 4 20:43:38 2013
ExecutablePath: /usr/bin/nepomukserver
InstallationDate: Installed on 2013-01-24 (11 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MarkForUpload: True
ProcCmdline: /usr/bin/nepomukserver
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7fb14301f90c <_ZN9QHashData14detach_helper2EPFvPNS_4NodeEPvEPFvS1_Eii+236>: mov (%rax,%rdx,8),%rbx
 PC (0x7fb14301f90c) ok
 source "(%rax,%rdx,8)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%rbx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: nepomuk-core
StacktraceTop:
 ?? () from /usr/lib/libkdecore.so.5
 QHashData::free_helper(void (*)(QHashData::Node*)) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
 ?? () from /usr/lib/libkdecore.so.5
 __run_exit_handlers (status=0, listp=0x7fb1445a96a8 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true) at exit.c:77
 __GI_exit (status=<optimized out>) at exit.c:99
Title: nepomukserver crashed with SIGSEGV in QHashData::free_helper()
UpgradeStatus: Upgraded to raring on 2013-01-26 (9 days ago)
UserGroups: adm cdrom dip lpadmin netdev plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 QHashData::detach_helper2 (this=0x14399c0, node_duplicate=0x7fb1445e16c0 <QHash<QString, Nepomuk2::ServiceController*>::duplicateNode(QHashData::Node*, void*)>, node_delete=0x7fb1445e16f0 <QHash<QString, Nepomuk2::ServiceController*>::deleteNode2(QHashData::Node*)>, nodeSize=<optimized out>, nodeAlign=8) at tools/qhash.cpp:258
 QHash<QString, Nepomuk2::ServiceController*>::detach_helper (this=0x1439918) at /usr/include/qt4/QtCore/qhash.h:584
 Nepomuk2::ServiceManager::Private::_k_serviceStopped (this=0x14399c0, sc=0x1439918) at ../../server/servicemanager.cpp:304
 ?? ()
 ?? ()