Application: dolphin (1.4)
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-21-generic x86_64
Distribution: Ubuntu 10.04 LTS

-- Information about the crash:
That's all I experienced. When I tried to copy a folder to another tab (within the same Dolphin window) using the mouse, it just crashed.

 -- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f6f6be0b760 (LWP 17845))]

Thread 2 (Thread 0x7f6f5b3d4710 (LWP 17850)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f6f5b3d3aa0 in ?? ()
#2  0x00007fff3b35e852 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 1 (Thread 0x7f6f6be0b760 (LWP 17845)):
[KCrash Handler]
#5  *__GI___libc_free (mem=0x200000000) at malloc.c:3709
#6  0x00007f6f681c991e in ~QObject (this=<value optimized out>, __in_chrg=<value optimized out>) at kernel/qobject.cpp:928
#7  0x00007f6f69c010d3 in ~OrgKdeJobViewInterface (this=0x200000000, __in_chrg=<value optimized out>) at jobviewiface.cpp:25
#8  0x00007f6f69aa9002 in KUiServerJobTracker::unregisterJob (this=<value optimized out>, job=0x1892e10) at ../../kdeui/jobs/kuiserverjobtracker.cpp:132
#9  0x00007f6f68846e05 in KJobTrackerInterface::qt_metacall (this=0x15795a0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff3b234460) at ./kjobtrackerinterface.moc:96
#10 0x00007f6f69aa7b40 in KUiServerJobTracker::qt_metacall (this=0x200000000, _c=25767440, _id=0, _a=0x1) at ./kuiserverjobtracker.moc:86
#11 0x00007f6f681c6e3f in QMetaObject::activate (sender=0x1892e10, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3293
#12 0x00007f6f68844cdf in KJob::finished (this=0x200000000, _t1=0x1892e10) at ./kjob.moc:173
#13 0x00007f6f68844e15 in KJob::emitResult (this=0x1892e10) at ../../kdecore/jobs/kjob.cpp:310
#14 0x00007f6f69f8c6ed in KIO::CopyJob::emitResult (this=0x1892e10) at ../../kio/kio/copyjob.cpp:1607
#15 0x00007f6f69f8cb54 in KIO::CopyJobPrivate::setNextDirAttribute (this=0x1aab300) at ../../kio/kio/copyjob.cpp:1579
#16 0x00007f6f69f8dfa7 in KIO::CopyJob::qt_metacall (this=0x1892e10, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff3b234710) at ./copyjob.moc:121
#17 0x00007f6f681c6e3f in QMetaObject::activate (sender=0x2dec160, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3293
#18 0x00007f6f68844b82 in KJob::result (this=0x200000000, _t1=0x2dec160) at ./kjob.moc:194
#19 0x00007f6f68844e20 in KJob::emitResult (this=0x2dec160) at ../../kdecore/jobs/kjob.cpp:312
#20 0x00007f6f69fbb503 in KIO::SimpleJob::slotFinished (this=0x2dec160) at ../../kio/kio/job.cpp:486
#21 0x00007f6f69fb97e1 in KIO::SimpleJob::qt_metacall (this=0x2dec160, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff3b234940) at ./jobclasses.moc:171
#22 0x00007f6f681c6e3f in QMetaObject::activate (sender=0x1423400, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3293
#23 0x00007f6f6a07b271 in KIO::SlaveInterface::dispatch (this=0x1423400, _cmd=104, rawdata=...) at ../../kio/kio/slaveinterface.cpp:175
#24 0x00007f6f6a0785e3 in KIO::SlaveInterface::dispatch (this=0x1423400) at ../../kio/kio/slaveinterface.cpp:91
#25 0x00007f6f6a06ca46 in KIO::Slave::gotInput (this=0x1423400) at ../../kio/kio/slave.cpp:324
#26 0x00007f6f6a06cc2c in KIO::Slave::qt_metacall (this=0x1423400, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff3b234d60) at ./slave.moc:82
#27 0x00007f6f681c6e3f in QMetaObject::activate (sender=0x34146c0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3293
#28 0x00007f6f69f8a9d7 in KIO::ConnectionPrivate::dequeue (this=0x354bbb0) at ../../kio/kio/connection.cpp:82
#29 0x00007f6f69f8aafd in KIO::Connection::qt_metacall (this=0x34146c0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x3332a00) at ./connection.moc:79
#30 0x00007f6f681c3d49 in QObject::event (this=0x34146c0, e=0x1ac1220) at kernel/qobject.cpp:1248
#31 0x00007f6f68da122c in QApplicationPrivate::notify_helper (this=0xec9390, receiver=0x34146c0, e=0x1ac1220) at kernel/qapplication.cpp:4300
#32 0x00007f6f68da76fb in QApplication::notify (this=0x7fff3b235860, receiver=0x34146c0, e=0x1ac1220) at kernel/qapplication.cpp:4183
#33 0x00007f6f69aac526 in KApplication::notify (this=0x7fff3b235860, receiver=0x34146c0, event=0x1ac1220) at ../../kdeui/kernel/kapplication.cpp:302
#34 0x00007f6f681b406c in QCoreApplication::notifyInternal (this=0x7fff3b235860, receiver=0x34146c0, event=0x1ac1220) at kernel/qcoreapplication.cpp:704
#35 0x00007f6f681b67e7 in QCoreApplication::sendEvent (receiver=0x0, event_type=<value optimized out>, data=0xea2c30) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#36 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0xea2c30) at kernel/qcoreapplication.cpp:1345
#37 0x00007f6f681dd9d3 in QCoreApplication::sendPostedEvents (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#38 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:276
#39 0x00007f6f63eac8c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#40 0x00007f6f63eb0748 in ?? () from /lib/libglib-2.0.so.0
#41 0x00007f6f63eb08fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#42 0x00007f6f681dd513 in QEventDispatcherGlib::processEvents (this=0xea2770, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#43 0x00007f6f68e5146e in QGuiEventDispatcherGlib::processEvents (this=0x200000000, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#44 0x00007f6f681b2992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#45 0x00007f6f681b2d6c in QEventLoop::exec (this=0x7fff3b2357b0, flags=) at kernel/qeventloop.cpp:201
#46 0x00007f6f681b6aab in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#47 0x000000000043b1c5 in main (argc=<value optimized out>, argv=<value optimized out>) at ../../../../apps/dolphin/src/main.cpp:101

Reported using DrKonqi