nepomukindexer crashed with SIGSEGV in __exchange_and_add()

[Balaam's Miracle]

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ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: kde-runtime 4:4.8.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-20.28-lowlatency 3.2.12
Uname: Linux 3.2.0-20-lowlatency i686
NonfreeKernelModules: nvidia
ApportVersion: 1.95-0ubuntu1
Architecture: i386
Date: Mon Mar 26 12:56:48 2012
ExecutablePath: /usr/bin/nepomukindexer
ProcCmdline: /usr/bin/nepomukindexer /home/username/Osgrid/bin/assetcache/j2k/j2kCache_b0ab53e1-ea9c-4e65-a027-a38eac898d38
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: kde-runtime
Title: nepomukindexer crashed with SIGSEGV in Strigi::FieldProperties::~FieldProperties()
UpgradeStatus: Upgraded to precise on 2012-03-05 (21 days ago)
UserGroups: adm admin audio avahi cdrom dialout dip floppy fuse games lpadmin netdev plugdev powerdev pulse sambashare scanner users video

[Apport retracing service (apport)]

StacktraceTop:
 __exchange_and_add (__mem=0xfffffffc, __val=-1) at /usr/include/c++/4.6/ext/atomicity.h:48
 __exchange_and_add_dispatch (__val=-1, __mem=0xfffffffc) at /usr/include/c++/4.6/ext/atomicity.h:81
 _M_dispose (__a=..., this=0xfffffff4) at /usr/include/c++/4.6/bits/basic_string.h:240
 ~basic_string (this=0x9b65f58, __in_chrg=<optimized out>) at /usr/include/c++/4.6/bits/basic_string.h:534
 _Destroy<std::basic_string<char> > (__pointer=0x9b65f58) at /usr/include/c++/4.6/bits/stl_construct.h:94