Application: dolphin (1.6.1)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-8-generic i686
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed:
I opened Dolphin and navigated to a folder with 3 pdf files. When I clicked on the folder to open the crash happened. When I opened it again and navigated to the same folder it opened and the problem was gone. After a reboot navigating to it crashes it again

The crash can be reproduced some of the time.

-- Backtrace:
Application: Dolphin (dolphin), signal: Aborted
[Current thread is 1 (Thread 0xb7781a20 (LWP 3483))]

Thread 6 (Thread 0xb54e3b70 (LWP 3484)):
#0  0x005be416 in __kernel_vsyscall ()
#1  0x0040c753 in ?? () from /lib/i386-linux-gnu/libc.so.6
#2  0x0039fb94 in ?? () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 5 (Thread 0xb39d6b70 (LWP 3491)):
#0  0x005be416 in __kernel_vsyscall ()
#1  0x0040c753 in ?? () from /lib/i386-linux-gnu/libc.so.6
#2  0x0039fb94 in ?? () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 4 (Thread 0xb31d5b70 (LWP 3500)):
[KCrash Handler]
#7  0x005be416 in __kernel_vsyscall ()
#8  0x00358e71 in raise () from /lib/i386-linux-gnu/libc.so.6
#9  0x0035c34e in abort () from /lib/i386-linux-gnu/libc.so.6
#10 0x0038f577 in ?? () from /lib/i386-linux-gnu/libc.so.6
#11 0x00399961 in ?? () from /lib/i386-linux-gnu/libc.so.6
#12 0x0039b28b in ?? () from /lib/i386-linux-gnu/libc.so.6
#13 0x0039e41d in free () from /lib/i386-linux-gnu/libc.so.6
#14 0x06807bbd in qFree (ptr=0x9ce5a28) at global/qmalloc.cpp:60
#15 0x06857510 in QString::free (d=0x9ce5a28) at tools/qstring.cpp:1185
#16 0x0061217b in ?? () from /usr/lib/libsoprano.so.4
#17 0x00612542 in ?? () from /usr/lib/libsoprano.so.4
#18 0x006065b1 in Soprano::LiteralValue::toString() const () from /usr/lib/libsoprano.so.4
#19 0x004e268d in (anonymous namespace)::doSerializeTerm (xml=..., term=...) at ../../../nepomuk/query/queryserializer.cpp:106
#20 0x004e2ce2 in (anonymous namespace)::doSerializeTerm (xml=..., term=...) at ../../../nepomuk/query/queryserializer.cpp:151
#21 0x004e3e93 in Nepomuk::Query::serializeQuery (query=...) at ../../../nepomuk/query/queryserializer.cpp:401
#22 0x004c8769 in Nepomuk::Query::Query::toString (this=0xb31d4f8c) at ../../../nepomuk/query/query.cpp:583
#23 0x004ce624 in Nepomuk::Query::Query::toSearchUrl (this=0xb31d50c0, customTitle=..., flags=...) at ../../../nepomuk/query/query.cpp:558
#24 0x00300f8e in Nepomuk::Utils::formatPropertyValue (property=..., value=..., resources=..., flags=...) at ../../../nepomuk/utils/utils.cpp:144
#25 0x010e3c50 in KLoadFileMetaDataThread::run (this=0x9c869e0) at ../../kio/kfile/kloadfilemetadatathread.cpp:128
#26 0x0680dda2 in QThreadPrivate::start (arg=0x9c869e0) at thread/qthread_unix.cpp:320
#27 0x00852e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#28 0x003fe73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 3 (Thread 0xb29d2b70 (LWP 3504)):
#0  0x005be416 in __kernel_vsyscall ()
#1  0x0040c753 in ?? () from /lib/i386-linux-gnu/libc.so.6
#2  0x0039fb94 in ?? () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 2 (Thread 0xb21cdb70 (LWP 3508)):
#0  0x005be416 in __kernel_vsyscall ()
#1  0x0040c753 in ?? () from /lib/i386-linux-gnu/libc.so.6
#2  0x0039fb94 in ?? () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 1 (Thread 0xb7781a20 (LWP 3483)):
#0  0x005be416 in __kernel_vsyscall ()
#1  0x0085748c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x0040c3fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x0680cdaa in QMutexPrivate::wait (this=0x98955a0, timeout=-1) at thread/qmutex_unix.cpp:84
#4  0x06809492 in QMutex::lock (this=0x9894fb8) at thread/qmutex.cpp:167
#5  0x02ea7ef1 in QMutexLocker (this=0x9941d40, catname=0x0, msgctxt=0x852a720 "QLocalSocket", msgid=0x852ad50 "%1: Unknown error %2", msgid_plural=0x0, n=0, language=0xbfbf8a74, translation=0xbfbf8a78) at /usr/include/qt4/QtCore/qmutex.h:102
#6  KLocalePrivate::translateRawFrom (this=0x9941d40, catname=0x0, msgctxt=0x852a720 "QLocalSocket", msgid=0x852ad50 "%1: Unknown error %2", msgid_plural=0x0, n=0, language=0xbfbf8a74, translation=0xbfbf8a78) at ../../kdecore/localization/klocale_kde.cpp:901
#7  0x02e9f82f in KLocalePrivate::translateQt (this=0x9941d40, context=0x852a720 "QLocalSocket", sourceText=0x852ad50 "%1: Unknown error %2", comment=0x0) at ../../kdecore/localization/klocale_kde.cpp:1011
#8  0x02e97971 in KLocale::translateQt (this=0x9922ff0, context=0x852a720 "QLocalSocket", sourceText=0x852ad50 "%1: Unknown error %2", comment=0x0) at ../../kdecore/localization/klocale.cpp:199
#9  0x02e12d90 in KDETranslator::translate (this=0x9937618, context=0x852a720 "QLocalSocket", sourceText=0x852ad50 "%1: Unknown error %2", message=0x0) at ../../kdecore/kernel/kglobal_p.h:52
#10 0x0691fede in QTranslator::translate (this=0x9937618, context=0x852a720 "QLocalSocket", sourceText=0x852ad50 "%1: Unknown error %2", disambiguation=0x0, n=-1) at kernel/qtranslator.cpp:801
#11 0x06902792 in QCoreApplication::translate (context=0x852a720 "QLocalSocket", sourceText=0x852ad50 "%1: Unknown error %2", disambiguation=0x0, encoding=QCoreApplication::CodecForTr, n=-1) at kernel/qcoreapplication.cpp:1767
#12 0x06902c06 in QCoreApplication::translate (context=0x852a720 "QLocalSocket", sourceText=0x852ad50 "%1: Unknown error %2", disambiguation=0x0, encoding=QCoreApplication::CodecForTr) at kernel/qcoreapplication.cpp:1682
#13 0x06908762 in QMetaObject::tr (this=0x8567cac, s=0x852ad50 "%1: Unknown error %2", c=0x0) at kernel/qmetaobject.cpp:281
#14 0x084f48f4 in tr (this=0x9cbdaf8, error=QLocalSocket::UnknownSocketError, function=...) at socket/qlocalsocket.h:60
#15 QLocalSocketPrivate::generateErrorString (this=0x9cbdaf8, error=QLocalSocket::UnknownSocketError, function=...) at socket/qlocalsocket_unix.cpp:167
#16 0x084f525c in QLocalSocketPrivate::_q_error (this=0x9cbdaf8, socketError=QAbstractSocket::UnknownSocketError) at socket/qlocalsocket_unix.cpp:100
#17 0x084f15da in QLocalSocket::qt_metacall (this=0x9cbb860, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0xbfbf8e38) at .moc/release-shared/moc_qlocalsocket.cpp:91
#18 0x069086ba in QMetaObject::metacall (object=0x9cbb860, cl=QMetaObject::InvokeMetaMethod, idx=13, argv=0xbfbf8e38) at kernel/qmetaobject.cpp:237
#19 0x069184ff in QMetaObject::activate (sender=0x9cbdb88, m=0x8567950, local_signal_index=4, argv=0xbfbf8e38) at kernel/qobject.cpp:3287
#20 0x084e8d13 in QAbstractSocket::error (this=0x9cbdb88, _t1=QAbstractSocket::UnknownSocketError) at .moc/release-shared/moc_qabstractsocket.cpp:156
#21 0x084ed78d in QAbstractSocket::waitForReadyRead (this=0x9cbdb88, msecs=600000) at socket/qabstractsocket.cpp:1873
#22 0x084f6c22 in QLocalSocket::waitForReadyRead (this=0x9cbb860, msecs=600000) at socket/qlocalsocket_unix.cpp:576
#23 0x00a75745 in ?? () from /usr/lib/libsopranoclient.so.1
#24 0x00a77246 in ?? () from /usr/lib/libsopranoclient.so.1
#25 0x00279223 in Nepomuk::MainModel::executeQuery (this=0x98d6ce8, query=..., language=Soprano::Query::QueryLanguageSparql, userQueryLanguage=...) at ../../nepomuk/core/nepomukmainmodel.cpp:212
#26 0x0061314d in Soprano::FilterModel::executeQuery(QString const&, Soprano::Query::QueryLanguage, QString const&) const () from /usr/lib/libsoprano.so.4
#27 0x0028f886 in Nepomuk::TagWidgetPrivate::loadTags (this=0x9e5d118, max=10) at ../../nepomuk/ui/tagwidget.cpp:134
#28 0x0028fdb1 in Nepomuk::TagWidgetPrivate::rebuild (this=0x9e5d118) at ../../nepomuk/ui/tagwidget.cpp:78
#29 0x00290045 in Nepomuk::TagWidgetPrivate::init (this=0x9e5d118, parent=0x9f01b88) at ../../nepomuk/ui/tagwidget.cpp:67
#30 0x002900ea in Nepomuk::TagWidget::TagWidget (this=0x9f01b88, parent=0x9be7ef8) at ../../nepomuk/ui/tagwidget.cpp:261
#31 0x010a7844 in KFileMetaDataProvider::Private::createTagWidget (this=0x9cbcba8, tags=..., parent=0x9be7ef8) at ../../kio/kfile/kfilemetadataprovider.cpp:318
#32 0x010a866e in KFileMetaDataProvider::createValueWidget (this=0x98cd2d0, metaDataUri=..., value=..., parent=0x9be7ef8) at ../../kio/kfile/kfilemetadataprovider.cpp:500
#33 0x010ab6d5 in KFileMetaDataWidget::Private::slotLoadingFinished (this=0x9be7f70) at ../../kio/kfile/kfilemetadatawidget.cpp:235
#34 0x010abc7e in KFileMetaDataWidget::qt_metacall (this=0x9be7ef8, _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0xbfbf954c) at ./kfilemetadatawidget.moc:88
#35 0x069086ba in QMetaObject::metacall (object=0x9be7ef8, cl=QMetaObject::InvokeMetaMethod, idx=29, argv=0xbfbf954c) at kernel/qmetaobject.cpp:237
#36 0x069184ff in QMetaObject::activate (sender=0x98cd2d0, m=0x1131688, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3287
#37 0x010a7c17 in KFileMetaDataProvider::loadingFinished (this=0x98cd2d0) at ./kfilemetadataprovider_p.moc:111
#38 0x010a8c70 in KFileMetaDataProvider::Private::slotLoadingFinished (this=0x9cbcba8, finishedThread=0x9efbdd0) at ../../kio/kfile/kfilemetadataprovider.cpp:226
#39 0x010a9672 in KFileMetaDataProvider::qt_metacall (this=0x98cd2d0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0xbfbf9778) at ./kfilemetadataprovider_p.moc:95
#40 0x069086ba in QMetaObject::metacall (object=0x98cd2d0, cl=QMetaObject::InvokeMetaMethod, idx=8, argv=0xbfbf9778) at kernel/qmetaobject.cpp:237
#41 0x069184ff in QMetaObject::activate (sender=0x9efbdd0, m=0x11333a8, local_signal_index=0, argv=0xbfbf9778) at kernel/qobject.cpp:3287
#42 0x010e33e3 in KLoadFileMetaDataThread::finished (this=0x9efbdd0, _t1=0x9efbdd0) at ./kloadfilemetadatathread_p.moc:89
#43 0x010e3405 in KLoadFileMetaDataThread::slotLoadingFinished (this=0x9efbdd0) at ../../kio/kfile/kloadfilemetadatathread.cpp:175
#44 0x010e3490 in KLoadFileMetaDataThread::qt_metacall (this=0x9efbdd0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x9ebdd20) at ./kloadfilemetadatathread_p.moc:77
#45 0x069086ba in QMetaObject::metacall (object=0x9efbdd0, cl=QMetaObject::InvokeMetaMethod, idx=12, argv=0x9ebdd20) at kernel/qmetaobject.cpp:237
#46 0x06912e16 in QMetaCallEvent::placeMetaCall (this=0x9c5e368, object=0x9efbdd0) at kernel/qobject.cpp:535
#47 0x069173b7 in QObject::event (this=0x9efbdd0, e=0x9c5e368) at kernel/qobject.cpp:1226
#48 0x01266d24 in QApplicationPrivate::notify_helper (this=0x98cda08, receiver=0x9efbdd0, e=0x9c5e368) at kernel/qapplication.cpp:4462
#49 0x0126b8ce in QApplication::notify (this=0xbfbfa040, receiver=0x9efbdd0, e=0x9c5e368) at kernel/qapplication.cpp:3862
#50 0x0945c3ca in KApplication::notify (this=0xbfbfa040, receiver=0x9efbdd0, event=0x9c5e368) at ../../kdeui/kernel/kapplication.cpp:311
#51 0x069020bb in QCoreApplication::notifyInternal (this=0xbfbfa040, receiver=0x9efbdd0, event=0x9c5e368) at kernel/qcoreapplication.cpp:731
#52 0x06905c79 in sendEvent (receiver=0x0, event_type=0, data=0x98938b8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#53 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x98938b8) at kernel/qcoreapplication.cpp:1372
#54 0x06905e0d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1265
#55 0x0692f3c4 in sendPostedEvents (s=0x98d08c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#56 postEventSourceDispatch (s=0x98d08c0) at kernel/qeventdispatcher_glib.cpp:277
#57 0x085cbaa8 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#58 0x085cc270 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#59 0x085cc524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#60 0x0692f53c in QEventDispatcherGlib::processEvents (this=0x9893410, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#61 0x0131a775 in QGuiEventDispatcherGlib::processEvents (this=0x9893410, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#62 0x06901289 in QEventLoop::processEvents (this=0xbfbf9f94, flags=...) at kernel/qeventloop.cpp:149
#63 0x06901522 in QEventLoop::exec (this=0xbfbf9f94, flags=...) at kernel/qeventloop.cpp:201
#64 0x06905ecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#65 0x012648e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#66 0x00992e8d in kdemain (argc=6, argv=0xbfbfa234) at ../../../dolphin/src/main.cpp:98
#67 0x080485bb in main (argc=6, argv=0xbfbfa234) at dolphin_dummy.cpp:3

Reported using DrKonqi