Application: dolphin (1.4)
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-22-generic x86_64
Distribution: Ubuntu 10.04 LTS

-- Information about the crash:
I have allocated two files in dolphin. I pressed "Ctrl + X" to cut them. At this point, dolphin fell.

The crash can be reproduced some of the time.

 -- Backtrace:
Application: Dolphin (dolphin), signal: Aborted
[Current thread is 1 (Thread 0x7f0e3640c760 (LWP 3955))]

Thread 4 (Thread 0x7f0e2588f710 (LWP 3961)):
#0  0x00007f0e3208ff53 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f0e2e4b64a9 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007f0e2e4b68fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007f0e327e3566 in QEventDispatcherGlib::processEvents (this=0x7f0e200095d0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:414
#4  0x00007f0e327b8992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007f0e327b8d6c in QEventLoop::exec (this=0x7f0e2588edb0, flags=) at kernel/qeventloop.cpp:201
#6  0x00007f0e326c2d59 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:487
#7  0x00007f0e32799178 in QInotifyFileSystemWatcherEngine::run (this=0x1d57810) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f0e326c5775 in QThreadPrivate::start (arg=0x1d57810) at thread/qthread_unix.cpp:248
#9  0x00007f0e2f5fb9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#10 0x00007f0e3209c69d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f0e1e955710 (LWP 4352)):
#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:136
#1  0x00007f0e2f60091c in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:259
#2  0x00007f0e326c4ea3 in QMutexPrivate::wait (this=0x7f0e18009640, timeout=-1) at thread/qmutex_unix.cpp:84
#3  0x00007f0e326c09e5 in QMutex::lock (this=0x7f0e18021100) at thread/qmutex.cpp:167
#4  0x00007f0e30439add in ?? () from /usr/lib/libsopranoclient.so.1
#5  0x00007f0e3514bb9d in Nepomuk::MainModel::executeQuery (this=0x1c5b4c0, query=..., language=Soprano::Query::QueryLanguageSparql, userQueryLanguage=...)
    at ../../../nepomuk/core/nepomukmainmodel.cpp:213
#6  0x00007f0e34e7d77c in Soprano::FilterModel::executeQuery(QString const&, Soprano::Query::QueryLanguage, QString const&) const () from /usr/lib/libsoprano.so.4
#7  0x00007f0e35140635 in Nepomuk::ResourceData::determineUri (this=0x7f0e18006560) at ../../../nepomuk/core/resourcedata.cpp:671
#8  0x00007f0e35141802 in Nepomuk::ResourceData::load (this=0x7f0e18006560) at ../../../nepomuk/core/resourcedata.cpp:414
#9  0x00007f0e351421b8 in Nepomuk::ResourceData::property (this=0x7f0e18006560, uri=...) at ../../../nepomuk/core/resourcedata.cpp:271
#10 0x00007f0e3515cee2 in Nepomuk::Resource::property (this=<value optimized out>, uri=...) at ../../../nepomuk/core/resource.cpp:280
#11 0x00007f0e3515f9d0 in Nepomuk::Resource::rating (this=0x7f0e1e954c80) at ../../../nepomuk/core/resource.cpp:800
#12 0x0000000000465b08 in KLoadMetaDataThread::run (this=0x1f690a0) at ../../../../apps/dolphin/src/panels/information/kloadmetadatathread.cpp:95
#13 0x00007f0e326c5775 in QThreadPrivate::start (arg=0x1f690a0) at thread/qthread_unix.cpp:248
#14 0x00007f0e2f5fb9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#15 0x00007f0e3209c69d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#16 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f0e0fef1710 (LWP 4354)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f0e326c4ea3 in QMutexPrivate::wait (this=0x7f0e1800a4e0, timeout=-1) at thread/qmutex_unix.cpp:84
#2  0x00007f0e326c09e5 in QMutex::lock (this=0x7f0e180065b8) at thread/qmutex.cpp:167
#3  0x00007f0e35141747 in QMutexLocker::relock (this=0x7f0e18006560) at /usr/include/qt4/QtCore/qmutex.h:120
#4  QMutexLocker (this=0x7f0e18006560) at /usr/include/qt4/QtCore/qmutex.h:102
#5  Nepomuk::ResourceData::load (this=0x7f0e18006560) at ../../../nepomuk/core/resourcedata.cpp:409
#6  0x00007f0e351421b8 in Nepomuk::ResourceData::property (this=0x7f0e18006560, uri=...) at ../../../nepomuk/core/resourcedata.cpp:271
#7  0x00007f0e3515cee2 in Nepomuk::Resource::property (this=<value optimized out>, uri=...) at ../../../nepomuk/core/resource.cpp:280
#8  0x00007f0e3515f9d0 in Nepomuk::Resource::rating (this=0x7f0e0fef0c80) at ../../../nepomuk/core/resource.cpp:800
#9  0x0000000000465b08 in KLoadMetaDataThread::run (this=0x1f98f70) at ../../../../apps/dolphin/src/panels/information/kloadmetadatathread.cpp:95
#10 0x00007f0e326c5775 in QThreadPrivate::start (arg=0x1f98f70) at thread/qthread_unix.cpp:248
#11 0x00007f0e2f5fb9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#12 0x00007f0e3209c69d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f0e3640c760 (LWP 3955)):
[KCrash Handler]
#5  0x00007f0e31fe9a75 in *__GI_raise (sig=<value optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#6  0x00007f0e31fed5c0 in *__GI_abort () at abort.c:92
#7  0x00007f0e320234fb in __libc_message (do_abort=<value optimized out>, fmt=<value optimized out>) at ../sysdeps/unix/sysv/linux/libc_fatal.c:189
#8  0x00007f0e3202d5b6 in malloc_printerr (action=3, str=0x7f0e320ff560 "free(): invalid next size (fast)", ptr=<value optimized out>) at malloc.c:6264
#9  0x00007f0e32033e53 in *__GI___libc_free (mem=<value optimized out>) at malloc.c:3738
#10 0x00007f0e327d15ce in QList<QObject*>::free (this=0x7f0e180331f8) at ../../include/QtCore/../../src/corelib/tools/qlist.h:649
#11 QList<QObject*>::operator= (this=0x7f0e180331f8) at ../../include/QtCore/../../src/corelib/tools/qlist.h:413
#12 QList<QObject*>::clear (this=0x7f0e180331f8) at ../../include/QtCore/../../src/corelib/tools/qlist.h:656
#13 0x00007f0e327c999f in QObjectPrivate::sendPendingChildInsertedEvents (this=0x7f0e18033190) at kernel/qobject.cpp:199
#14 0x00007f0e327c9d89 in QObject::event (this=0x7f0e18033110, e=0x7f0e180243f0) at kernel/qobject.cpp:1217
#15 0x00007f0e333a722c in QApplicationPrivate::notify_helper (this=0x1897ca0, receiver=0x7f0e18033110, e=0x7f0e180243f0) at kernel/qapplication.cpp:4300
#16 0x00007f0e333ad6fb in QApplication::notify (this=0x7fff0038ac20, receiver=0x7f0e18033110, e=0x7f0e180243f0) at kernel/qapplication.cpp:4183
#17 0x00007f0e340b2526 in KApplication::notify (this=0x7fff0038ac20, receiver=0x7f0e18033110, event=0x7f0e180243f0) at ../../kdeui/kernel/kapplication.cpp:302
#18 0x00007f0e327ba06c in QCoreApplication::notifyInternal (this=0x7fff0038ac20, receiver=0x7f0e18033110, event=0x7f0e180243f0) at kernel/qcoreapplication.cpp:704
#19 0x00007f0e327bc7e7 in QCoreApplication::sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x1868c30) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#20 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x1868c30) at kernel/qcoreapplication.cpp:1345
#21 0x00007f0e327e39d3 in QCoreApplication::sendPostedEvents (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#22 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:276
#23 0x00007f0e2e4b28c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#24 0x00007f0e2e4b6748 in ?? () from /lib/libglib-2.0.so.0
#25 0x00007f0e2e4b68fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#26 0x00007f0e327e3513 in QEventDispatcherGlib::processEvents (this=0x1868770, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#27 0x00007f0e3345746e in QGuiEventDispatcherGlib::processEvents (this=0xf73, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#28 0x00007f0e327b8992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#29 0x00007f0e327b8d6c in QEventLoop::exec (this=0x7fff0038ab70, flags=) at kernel/qeventloop.cpp:201
#30 0x00007f0e327bcaab in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#31 0x000000000043b1c5 in main (argc=<value optimized out>, argv=<value optimized out>) at ../../../../apps/dolphin/src/main.cpp:101

Reported using DrKonqi