.
Thread 2 (process 27352):
#0  0x00007fcefa4a032c in writev () from /lib/libc.so.6
#1  0x00007fcef532537c in ?? () from /lib/libdbus-1.so.3
#2  0x00007fcef531d0c2 in ?? () from /lib/libdbus-1.so.3
#3  0x00007fcef531d337 in ?? () from /lib/libdbus-1.so.3
#4  0x00007fcef531b5e4 in ?? () from /lib/libdbus-1.so.3
#5  0x00007fcef53081ae in ?? () from /lib/libdbus-1.so.3
#6  0x00007fcef530828a in ?? () from /lib/libdbus-1.so.3
#7  0x00007fcef5308349 in ?? () from /lib/libdbus-1.so.3
#8  0x00007fcef5309391 in dbus_connection_send_with_reply ()
   from /lib/libdbus-1.so.3
#9  0x00007fcef53094f1 in dbus_connection_send_with_reply_and_block ()
   from /lib/libdbus-1.so.3
#10 0x00007fcefc1211fb in ?? () from /usr/lib/libQtDBus.so.4
#11 0x00007fcefc12243f in ?? () from /usr/lib/libQtDBus.so.4
#12 0x00007fcefc12ced6 in ?? () from /usr/lib/libQtDBus.so.4
#13 0x00007fcefc12def6 in ?? () from /usr/lib/libQtDBus.so.4
#14 0x00007fcefc12e057 in QDBusInterface::QDBusInterface ()
   from /usr/lib/libQtDBus.so.4
#15 0x00007fcefb8ff99b in ?? () from /usr/lib/libkdeui.so.5
#16 0x00007fcefb9000a2 in ?? () from /usr/lib/libkdeui.so.5
#17 0x00007fcefb8fbd2b in KNotification::sendEvent ()
   from /usr/lib/libkdeui.so.5
#18 0x00007fcefb8fcfd0 in KNotification::qt_metacall ()
   from /usr/lib/libkdeui.so.5
#19 0x00007fcefd025154 in QMetaObject::activate ()
   from /usr/lib/libQtCore.so.4
#20 0x00007fcefd02b3bf in ?? () from /usr/lib/libQtCore.so.4
#21 0x00007fcefd01fa63 in QObject::event () from /usr/lib/libQtCore.so.4
#22 0x00007fcefc532bfd in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#23 0x00007fcefc53a9ba in QApplication::notify () from /usr/lib/libQtGui.so.4
#24 0x00007fcefd010d81 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#25 0x00007fcefd03cac6 in ?? () from /usr/lib/libQtCore.so.4
#26 0x00007fcefd03922d in ?? () from /usr/lib/libQtCore.so.4
#27 0x00007fcef9b1130b in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#28 0x00007fcef9b14acd in ?? () from /usr/lib/libglib-2.0.so.0
#29 0x00007fcef9b14c8b in g_main_context_iteration ()
   from /usr/lib/libglib-2.0.so.0
#30 0x00007fcefd03918f in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#31 0x00007fcefc5c4adf in ?? () from /usr/lib/libQtGui.so.4
#32 0x00007fcefd00f6a2 in QEventLoop::processEvents ()
   from /usr/lib/libQtCore.so.4
#33 0x00007fcefd00f82d in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#34 0x00007fcefd011cdd in QCoreApplication::exec ()
   from /usr/lib/libQtCore.so.4
#35 0x0000000000403851 in _start ()
.
Thread 1 (process 27503):
#0  0x00007fcef3b5d486 in librdf_hash_get_one () from /usr/lib/librdf.so.0
#1  0x00007fcef3b58a10 in librdf_new_uri () from /usr/lib/librdf.so.0
#2  0x00007fcef36bf30e in raptor_namespaces_init ()
   from /usr/lib/libraptor.so.1
#3  0x00007fcef36bf46a in raptor_new_namespaces ()
   from /usr/lib/libraptor.so.1
#4  0x00007fcef3921e8c in rasqal_new_query () from /usr/lib/librasqal.so.1
#5  0x00007fcef3b6fb66 in ?? () from /usr/lib/librdf.so.0
#6  0x00007fcef3b6d882 in librdf_new_query_from_factory ()
   from /usr/lib/librdf.so.0
#7  0x00007fcef3d9e653 in ?? ()
   from /usr/lib/soprano/libsoprano_redlandbackend.so
#8  0x00007fcefb18bc6d in Soprano::FilterModel::executeQuery ()
   from /usr/lib/libsoprano.so.4
#9  0x00007fcef42e553b in Soprano::Index::IndexFilterModel::rebuildIndex ()
   from /usr/lib/libsopranoindex.so.1
#10 0x00007fcefcf28392 in ?? () from /usr/lib/libQtCore.so.4
#11 0x00007fcef98c23ba in start_thread () from /lib/libpthread.so.0
#12 0x00007fcefa4a80ad in clone () from /lib/libc.so.6
#13 0x0000000000000000 in ?? ()