nepomukserver crashed with SIGSEGV in pthread_cond_wait@@GLIBC_2.3.2()

[claudio]

open kubuntu

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: kde-runtime 4:4.8.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-18.29-generic 3.2.9
Uname: Linux 3.2.0-18-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.94.1-0ubuntu2
Architecture: amd64
CrashCounter: 1
Date: Wed Mar 14 14:16:22 2012
ExecutablePath: /usr/bin/nepomukserver
InstallationMedia: Kubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120224)
ProcCmdline: /usr/bin/nepomukserver
ProcEnviron:
 LANGUAGE=it_IT
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f826ad99bd3 <_ZN9QHashData14detach_helper2EPFvPNS_4NodeEPvEPFvS1_Eii+227>: mov (%rax,%rdx,8),%rbx
 PC (0x7f826ad99bd3) ok
 source "(%rax,%rdx,8)" (0x000007d1) not located in a known VMA region (needed readable region)!
 destination "%rbx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: kde-runtime
StacktraceTop:
 pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
 QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
 QThread::wait(unsigned long) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
 ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
 ?? () from /lib/x86_64-linux-gnu/libc.so.6
Title: nepomukserver crashed with SIGSEGV in pthread_cond_wait@@GLIBC_2.3.2()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #946115, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.