nepomukserver crashed with SIGSEGV in __GI___libc_free()

[Hicks]

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ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: kde-runtime 4:4.7.97-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-8.15-generic-pae 3.2.0
Uname: Linux 3.2.0-8-generic-pae i686
NonfreeKernelModules: nvidia
ApportVersion: 1.90-0ubuntu2
Architecture: i386
Date: Sun Jan 15 13:56:34 2012
ExecutablePath: /usr/bin/nepomukserver
InstallationMedia: Kubuntu 10.04.3 LTS "Lucid Lynx" - Release i386 (20110720.1)
ProcCmdline: /usr/bin/nepomukserver
ProcEnviron:
 LANG=es_ES.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0xb6cdaaa7 <_ZNK8QProcess5stateEv+7>: mov 0x9c(%eax),%eax
 PC (0xb6cdaaa7) ok
 source "0x9c(%eax)" (0x0000009c) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: kde-runtime
StacktraceTop:
 __GI___libc_free (mem=0x937fb20) at malloc.c:3736
 qFree(void*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
 QVectorData::free(QVectorData*, int) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
 ?? () from /usr/lib/libkdecore.so.5
 ?? () from /usr/lib/libkdecore.so.5
Title: nepomukserver crashed with SIGSEGV in __GI___libc_free()
UpgradeStatus: Upgraded to precise on 2012-01-15 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 __GI___libc_free (mem=0x937fb20) at malloc.c:3736
 qFree (ptr=0x937fb20) at global/qmalloc.cpp:60
 QVectorData::free (x=0x937fb20, alignment=4) at tools/qvector.cpp:82
 free (alignment=4, x=0x937fb20) at /usr/include/qt4/QtCore/qvector.h:96
 QVector<KService::ServiceTypeAndPreference>::free (x=0x937fb20, this=<optimized out>) at /usr/include/qt4/QtCore/qvector.h:440