#0  0xb609d8bd in librdf_hash_get_one () from /usr/lib/librdf.so.0
#1  0xb609836b in librdf_new_uri () from /usr/lib/librdf.so.0
#2  0xb60add94 in ?? () from /usr/lib/librdf.so.0
#3  0xb600be7a in raptor_namespaces_init () from /usr/lib/libraptor.so.1
#4  0xb600c004 in raptor_new_namespaces () from /usr/lib/libraptor.so.1
#5  0xb606657a in rasqal_new_query () from /usr/lib/librasqal.so.1
#6  0xb60b2db1 in ?? () from /usr/lib/librdf.so.0
#7  0xb60b0471 in librdf_new_query_from_factory () from /usr/lib/librdf.so.0
#8  0xb60b0718 in librdf_new_query () from /usr/lib/librdf.so.0
#9  0xb60dac33 in ?? () from /usr/lib/soprano/libsoprano_redlandbackend.so
#10 0xb6e5a68d in Soprano::FilterModel::executeQuery ()
   from /usr/lib/libsoprano.so.4
#11 0xb62067d2 in Soprano::Index::IndexFilterModel::rebuildIndex ()
   from /usr/lib/libsopranoindex.so.1
#12 0xb624eac0 in ?? () from /usr/lib/kde4/nepomukstorage.so
#13 0xb7e9e74e in ?? () from /usr/lib/libQtCore.so.4
#14 0xb6a464ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#15 0xb6c1b3fe in clone () from /lib/tls/i686/cmov/libc.so.6