Application: dolphin (1.6)
KDE Platform Version: 4.6.00 (4.6.0) (Compiled from sources)
Qt Version: 4.7.1
Operating System: Linux 2.6.37-gentoo x86_64
Distribution (Platform): Gentoo Packages

-- Information about the crash:
- What I was doing when the application crashed:

Hover a file so a tooltip with a preview is shown. Happens with different filetypes, such as audio, images, video, pdf documents ...

The crash can be reproduced some of the time.

-- Backtrace:
Application: Dolphin (dolphin), signal: Aborted
[Current thread is 1 (Thread 0x7f3023b70760 (LWP 28018))]

Thread 4 (Thread 0x7f30112c7700 (LWP 28027)):
#0  0x00007f3023470f33 in poll () from /lib/libc.so.6
#1  0x00007f301b92a339 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#2  0x00007f301b92a78c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f301f805f06 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#4  0x00007f301f7d8b02 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#5  0x00007f301f7d8eec in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#6  0x00007f301f6e4f6d in QThread::exec() () from /usr/lib64/qt4/libQtCore.so.4
#7  0x00007f301f7b8b58 in ?? () from /usr/lib64/qt4/libQtCore.so.4
#8  0x00007f301f6e7ece in ?? () from /usr/lib64/qt4/libQtCore.so.4
#9  0x00007f301c853c1a in start_thread () from /lib/libpthread.so.0
#10 0x00007f3023479d1d in clone () from /lib/libc.so.6

Thread 3 (Thread 0x7f2ffd1fb700 (LWP 28544)):
#0  0x00007f301c85892b in pthread_cond_timedwait () from /lib/libpthread.so.0
#1  0x00007f3009ca9141 in ?? () from /usr/lib64/libxine.so.1
#2  0x00007f301c853c1a in start_thread () from /lib/libpthread.so.0
#3  0x00007f3023479d1d in clone () from /lib/libc.so.6

Thread 2 (Thread 0x7f300b7fe700 (LWP 9171)):
[KCrash Handler]
#6  0x00007f30233d4675 in raise () from /lib/libc.so.6
#7  0x00007f30233d5a90 in abort () from /lib/libc.so.6
#8  0x00007f30234102db in __libc_message () from /lib/libc.so.6
#9  0x00007f3023415896 in malloc_printerr () from /lib/libc.so.6
#10 0x00007f30234191a5 in _int_malloc () from /lib/libc.so.6
#11 0x00007f302341a700 in malloc () from /lib/libc.so.6
#12 0x00007f301f72b535 in QString::QString(int, Qt::Initialization) () from /usr/lib64/qt4/libQtCore.so.4
#13 0x00007f302185a11f in Nepomuk::Utils::formatPropertyValue(Nepomuk::Types::Property const&, Nepomuk::Variant const&, QList<Nepomuk::Resource> const&, QFlags<Nepomuk::Utils::PropertyFormatFlag>) () from /usr/lib/libnepomukutils.so.4
#14 0x00007f30215a6603 in KLoadFileMetaDataThread::run() () from /usr/lib/libkio.so.5
#15 0x00007f301f6e7ece in ?? () from /usr/lib64/qt4/libQtCore.so.4
#16 0x00007f301c853c1a in start_thread () from /lib/libpthread.so.0
#17 0x00007f3023479d1d in clone () from /lib/libc.so.6

Thread 1 (Thread 0x7f3023b70760 (LWP 28018)):
#0  0x00007f3023486a0e in __lll_lock_wait_private () from /lib/libc.so.6
#1  0x00007f302341c228 in _L_lock_6668 () from /lib/libc.so.6
#2  0x00007f302341a611 in free () from /lib/libc.so.6
#3  0x00007f302343b82d in tzset_internal () from /lib/libc.so.6
#4  0x00007f302343bac0 in tzset () from /lib/libc.so.6
#5  0x00007f301fc1152e in KSystemTimeZoneBackend::offset(KTimeZone const*, long) const () from /usr/lib/libkdecore.so.5
#6  0x00007f301fc0db22 in KTimeZone::toZoneTime(QDateTime const&, bool*) const () from /usr/lib/libkdecore.so.5
#7  0x00007f301fbf68e4 in KDateTimePrivate::toZone(KTimeZone const&, KTimeZone const&) const () from /usr/lib/libkdecore.so.5
#8  0x00007f301fbf69be in KDateTimePrivate::newToZone(KDateTimePrivate*, KTimeZone const&, KTimeZone const&) const () from /usr/lib/libkdecore.so.5
#9  0x00007f301fbffec4 in KDateTime::toLocalZone() const () from /usr/lib/libkdecore.so.5
#10 0x00007f302149cedc in KFileItemPrivate::setTime(KFileItem::FileTimes, long long) const () from /usr/lib/libkio.so.5
#11 0x00007f302149e25a in KFileItemPrivate::time(KFileItem::FileTimes) const () from /usr/lib/libkio.so.5
#12 0x00007f302149e50c in KFileItem::time(KFileItem::FileTimes) const () from /usr/lib/libkio.so.5
#13 0x00007f3021562980 in KFileMetaDataProvider::Private::slotLoadingFinished(QThread*) () from /usr/lib/libkio.so.5
#14 0x00007f3021563075 in KFileMetaDataProvider::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkio.so.5
#15 0x00007f301f7f1ac7 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib64/qt4/libQtCore.so.4
#16 0x00007f30215a577f in KLoadFileMetaDataThread::finished(QThread*) () from /usr/lib/libkio.so.5
#17 0x00007f30215a5811 in KLoadFileMetaDataThread::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkio.so.5
#18 0x00007f301f7ebb9e in QObject::event(QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#19 0x00007f30201d27cc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#20 0x00007f30201d7b9d in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#21 0x00007f3020f2d446 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#22 0x00007f301f7d9ddc in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#23 0x00007f301f7dcd73 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/qt4/libQtCore.so.4
#24 0x00007f301f806373 in ?? () from /usr/lib64/qt4/libQtCore.so.4
#25 0x00007f301b926682 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#26 0x00007f301b92a5d8 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#27 0x00007f301b92a78c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#28 0x00007f301f805eb3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#29 0x00007f3020283e2e in ?? () from /usr/lib64/qt4/libQtGui.so.4
#30 0x00007f301f7d8b02 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#31 0x00007f301f7d8eec in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#32 0x00007f301f7dcfab in QCoreApplication::exec() () from /usr/lib64/qt4/libQtCore.so.4
#33 0x00007f30237721ff in kdemain () from /usr/lib/libkdeinit4_dolphin.so
#34 0x00007f30233c0f0d in __libc_start_main () from /lib/libc.so.6
#35 0x0000000000400789 in _start ()

Reported using DrKonqi