Application: dolphin (2.1)
KDE Platform Version: 4.9.4
Qt Version: 4.8.4
Operating System: Linux 3.6.10-2.fc17.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
Steps to reproduce:

1) Open dolphin
2) Select a file (I can reproduce it well with *mp3 files)
3) *Quickly* hit the add tags button in the "semantic pane"

Note: This seems to be a timing / concurrenty related problem. You really
seem to have to hit the button quickly *before* the semantic desktop bar of dolphin is fully established. If you wait too long, dolphin won't crash.

The crash can be reproduced every time.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f9aa1431880 (LWP 10483))]

Thread 2 (Thread 0x7f9a96fc6700 (LWP 10486)):
#0  0x00007fff4fbd465e in clock_gettime ()
#1  0x000000329c00410d in __GI_clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:116
#2  0x00000032276d1854 in do_gettime (frac=0x7f9a96fc5a38, sec=0x7f9a96fc5a30) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00000032277a68ed in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f9a90002860) at kernel/qeventdispatcher_unix.cpp:354
#5  0x00000032277a6c33 in QTimerInfoList::timerWait (this=0x7f9a90002860, tm=...) at kernel/qeventdispatcher_unix.cpp:461
#6  0x00000032277a569c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7f9a96fc5b2c) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00000032277a5745 in timerSourcePrepare (source=source@entry=0x7f9a90002800, timeout=timeout@entry=0x7f9a96fc5b2c) at kernel/qeventdispatcher_glib.cpp:169
#8  0x000000329cc4732f in g_main_context_prepare (context=context@entry=0x7f9a900009a0, priority=priority@entry=0x7f9a96fc5b78) at gmain.c:2836
#9  0x000000329cc47a1b in g_main_context_iterate (context=context@entry=0x7f9a900009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3126
#10 0x000000329cc47c14 in g_main_context_iteration (context=0x7f9a900009a0, may_block=1) at gmain.c:3207
#11 0x00000032277a5fe6 in QEventDispatcherGlib::processEvents (this=0x7f9a900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#12 0x00000032277766ef in QEventLoop::processEvents (this=this@entry=0x7f9a96fc5cd0, flags=...) at kernel/qeventloop.cpp:149
#13 0x0000003227776978 in QEventLoop::exec (this=0x7f9a96fc5cd0, flags=...) at kernel/qeventloop.cpp:204
#14 0x0000003227678940 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#15 0x0000003227756f0f in QInotifyFileSystemWatcherEngine::run (this=0x11b6380) at io/qfilesystemwatcher_inotify.cpp:256
#16 0x000000322767b91c in QThreadPrivate::start (arg=0x11b6380) at thread/qthread_unix.cpp:338
#17 0x000000329bc07d14 in start_thread (arg=0x7f9a96fc6700) at pthread_create.c:309
#18 0x000000329b0f168d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7f9aa1431880 (LWP 10483)):
[KCrash Handler]
#6  0x000000329b07f9bc in __GI___libc_free (mem=0x7fff4fb1c4d0) at malloc.c:2987
#7  0x0000003227789fe2 in QObjectPrivate::deleteChildren (this=0x168d2c0) at kernel/qobject.cpp:1907
#8  0x00000032298141a4 in QWidget::~QWidget (this=0x1619ef0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1681
#9  0x00000038d706aa29 in Nepomuk::TagWidget::~TagWidget (this=0x1619ef0, __in_chrg=<optimized out>) at /usr/src/debug/kdelibs-4.9.4/nepomuk/ui/tagwidget.cpp:268
#10 0x00000038d79de167 in KFileMetaDataWidget::Private::deleteRows (this=this@entry=0x1014e20) at /usr/src/debug/kdelibs-4.9.4/kio/kfile/kfilemetadatawidget.cpp:184
#11 0x00000038d79de899 in KFileMetaDataWidget::Private::slotLoadingFinished (this=0x1014e20) at /usr/src/debug/kdelibs-4.9.4/kio/kfile/kfilemetadatawidget.cpp:192
#12 0x000000322778cdbf in QMetaObject::activate (sender=0x1398da0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#13 0x00000038d7a10c2a in KFileMetaDataProvider::Private::slotLoadingFinished (this=0x147b120) at /usr/src/debug/kdelibs-4.9.4/kio/kfile/kfilemetadataprovider.cpp:245
#14 0x000000322778cdbf in QMetaObject::activate (sender=0x19c99a0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#15 0x00000038d7a0ebe1 in KFileMetaDataReader::Private::slotLoadingFinished (this=0x194ac10, exitCode=<optimized out>, exitStatus=<optimized out>) at /usr/src/debug/kdelibs-4.9.4/kio/kfile/kfilemetadatareader.cpp:96
#16 0x000000322778cdbf in QMetaObject::activate (sender=0x1655e20, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff4fb1ba30) at kernel/qobject.cpp:3539
#17 0x000000322770df6f in QProcess::finished (this=this@entry=0x1655e20, _t1=0, _t2=QProcess::NormalExit) at .moc/release-shared/moc_qprocess.cpp:155
#18 0x0000003227712077 in QProcessPrivate::_q_processDied (this=0x1730fb0) at io/qprocess.cpp:1068
#19 0x00000032277120fe in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=<optimized out>, _c=<optimized out>) at .moc/release-shared/moc_qprocess.cpp:91
#20 QProcess::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/release-shared/moc_qprocess.cpp:68
#21 0x000000322778cdbf in QMetaObject::activate (sender=0x1607ff0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff4fb1bbe0) at kernel/qobject.cpp:3539
#22 0x00000032277d7b3e in QSocketNotifier::activated (this=<optimized out>, _t1=27) at .moc/release-shared/moc_qsocketnotifier.cpp:102
#23 0x000000322779478b in QSocketNotifier::event (this=0x1607ff0, e=0x7fff4fb1c200) at kernel/qsocketnotifier.cpp:317
#24 0x00000032297ca5ac in QApplicationPrivate::notify_helper (this=this@entry=0xfc12a0, receiver=receiver@entry=0x1607ff0, e=e@entry=0x7fff4fb1c200) at kernel/qapplication.cpp:4562
#25 0x00000032297cea2a in QApplication::notify (this=0x7fff4fb1e070, receiver=0x1607ff0, e=0x7fff4fb1c200) at kernel/qapplication.cpp:4423
#26 0x00000038d1a468a6 in KApplication::notify (this=0x7fff4fb1e070, receiver=0x1607ff0, event=0x7fff4fb1c200) at /usr/src/debug/kdelibs-4.9.4/kdeui/kernel/kapplication.cpp:311
#27 0x000000322777799e in QCoreApplication::notifyInternal (this=0x7fff4fb1e070, receiver=0x1607ff0, event=0x7fff4fb1c200) at kernel/qcoreapplication.cpp:946
#28 0x00000032277a57c8 in sendEvent (event=0x7fff4fb1c200, receiver=<optimized out>) at kernel/qcoreapplication.h:231
#29 socketNotifierSourceDispatch (source=source@entry=0xfc1f30) at kernel/qeventdispatcher_glib.cpp:110
#30 0x000000329cc47825 in g_main_dispatch (context=0xfc1e40) at gmain.c:2539
#31 g_main_context_dispatch (context=context@entry=0xfc1e40) at gmain.c:3075
#32 0x000000329cc47b58 in g_main_context_iterate (context=context@entry=0xfc1e40, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3146
#33 0x000000329cc47c14 in g_main_context_iteration (context=0xfc1e40, may_block=1) at gmain.c:3207
#34 0x00000032277a5fc6 in QEventDispatcherGlib::processEvents (this=0xf8fc60, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#35 0x000000322986a5ee in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#36 0x00000032277766ef in QEventLoop::processEvents (this=this@entry=0x7fff4fb1c450, flags=...) at kernel/qeventloop.cpp:149
#37 0x0000003227776978 in QEventLoop::exec (this=0x7fff4fb1c450, flags=...) at kernel/qeventloop.cpp:204
#38 0x0000003229c7e2e8 in QDialog::exec (this=0x7fff4fb1c4d0) at dialogs/qdialog.cpp:554
#39 0x00000038d706b8e8 in Nepomuk::TagWidget::slotShowAll (this=0x1619ef0) at /usr/src/debug/kdelibs-4.9.4/nepomuk/ui/tagwidget.cpp:383
#40 0x00000038d706c285 in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=<optimized out>, _c=<optimized out>) at /usr/src/debug/kdelibs-4.9.4/x86_64-redhat-linux-gnu/nepomuk/tagwidget.moc:80
#41 Nepomuk::TagWidget::qt_static_metacall (_o=0x1619ef0, _c=1337050304, _id=-1690630280, _a=0x1696d90) at /usr/src/debug/kdelibs-4.9.4/x86_64-redhat-linux-gnu/nepomuk/tagwidget.moc:65
#42 0x000000322778cdbf in QMetaObject::activate (sender=0x1952290, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff4fb1c6c0) at kernel/qobject.cpp:3539
#43 0x0000003229bcaea2 in QLabel::linkActivated (this=<optimized out>, _t1=...) at .moc/release-shared/moc_qlabel.cpp:193
#44 0x000000322778cdbf in QMetaObject::activate (sender=0x1a1ad40, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff4fb1c800) at kernel/qobject.cpp:3539
#45 0x0000003229a0ef65 in QTextControl::linkActivated (this=<optimized out>, _t1=...) at .moc/release-shared/moc_qtextcontrol_p.cpp:335
#46 0x0000003229a12165 in QTextControlPrivate::activateLinkUnderCursor (this=this@entry=0x19c1db0, href=...) at text/qtextcontrol.cpp:2734
#47 0x0000003229a129d5 in QTextControlPrivate::mouseReleaseEvent (this=this@entry=0x19c1db0, e=e@entry=0x7fff4fb1d3f0, button=<optimized out>, pos=..., modifiers=..., buttons=..., globalPos=...) at text/qtextcontrol.cpp:1754
#48 0x0000003229a16b6a in QTextControl::processEvent (this=<optimized out>, e=0x7fff4fb1d3f0, matrix=..., contextWidget=<optimized out>) at text/qtextcontrol.cpp:961
#49 0x0000003229a0b943 in QTextControl::processEvent (this=0x1a1ad40, e=0x7fff4fb1d3f0, coordinateOffset=..., contextWidget=0x1952290) at text/qtextcontrol.cpp:906
#50 0x0000003229bc9a53 in QLabelPrivate::sendControlEvent (this=0x1839e00, e=0x7fff4fb1d3f0) at widgets/qlabel.cpp:1651
#51 0x0000003229819f29 in QWidget::event (this=0x1952290, event=0x7fff4fb1d3f0) at kernel/qwidget.cpp:8375
#52 0x0000003229bc48f6 in QFrame::event (this=0x1952290, e=0x7fff4fb1d3f0) at widgets/qframe.cpp:557
#53 0x00000032297ca5ac in QApplicationPrivate::notify_helper (this=this@entry=0xfc12a0, receiver=receiver@entry=0x1952290, e=e@entry=0x7fff4fb1d3f0) at kernel/qapplication.cpp:4562
#54 0x00000032297cf28b in QApplication::notify (this=<optimized out>, receiver=0x1952290, e=0x7fff4fb1d3f0) at kernel/qapplication.cpp:4105
#55 0x00000038d1a468a6 in KApplication::notify (this=0x7fff4fb1e070, receiver=0x1952290, event=0x7fff4fb1d3f0) at /usr/src/debug/kdelibs-4.9.4/kdeui/kernel/kapplication.cpp:311
#56 0x000000322777799e in QCoreApplication::notifyInternal (this=0x7fff4fb1e070, receiver=0x1952290, event=0x7fff4fb1d3f0) at kernel/qcoreapplication.cpp:946
#57 0x00000032297cb3eb in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#58 QApplicationPrivate::sendMouseEvent (receiver=0x1952290, event=0x7fff4fb1d3f0, alienWidget=0x1952290, nativeWidget=0x1303ae0, buttonDown=0x322a29e248, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3173
#59 0x0000003229845ac4 in QETWidget::translateMouseEvent (this=this@entry=0x1303ae0, event=event@entry=0x7fff4fb1db60) at kernel/qapplication_x11.cpp:4537
#60 0x0000003229844851 in QApplication::x11ProcessEvent (this=0x7fff4fb1e070, event=0x7fff4fb1db60) at kernel/qapplication_x11.cpp:3660
#61 0x000000322986a90c in x11EventSourceDispatch (s=s@entry=0xfbde40, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:148
#62 0x000000329cc47825 in g_main_dispatch (context=0xfc1e40) at gmain.c:2539
#63 g_main_context_dispatch (context=context@entry=0xfc1e40) at gmain.c:3075
#64 0x000000329cc47b58 in g_main_context_iterate (context=context@entry=0xfc1e40, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3146
#65 0x000000329cc47c14 in g_main_context_iteration (context=0xfc1e40, may_block=1) at gmain.c:3207
#66 0x00000032277a5fc6 in QEventDispatcherGlib::processEvents (this=0xf8fc60, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#67 0x000000322986a5ee in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#68 0x00000032277766ef in QEventLoop::processEvents (this=this@entry=0x7fff4fb1df30, flags=...) at kernel/qeventloop.cpp:149
#69 0x0000003227776978 in QEventLoop::exec (this=0x7fff4fb1df30, flags=...) at kernel/qeventloop.cpp:204
#70 0x000000322777b768 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#71 0x0000003a2724eb67 in kdemain (argc=5, argv=0x7fff4fb1e1a8) at /usr/src/debug/kde-baseapps-4.9.4/dolphin/src/main.cpp:89
#72 0x000000329b021735 in __libc_start_main (main=0x400810 <main(int, char**)>, argc=5, ubp_av=0x7fff4fb1e1a8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff4fb1e198) at libc-start.c:226
#73 0x0000000000400841 in _start ()

Possible duplicates by query: bug 309216.

Reported using DrKonqi