Application: dolphin (1.7)
KDE Platform Version: 4.7.4 (4.7.4)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-20-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:I was using firefox and copying files from my hard disk to another one

The crash can be reproduced some of the time.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fb85b7a3780 (LWP 2534))]

Thread 3 (Thread 0x7fb849119700 (LWP 2535)):
#0  0x00007fb85b077473 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fb8537a1f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb8537a2429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb8574b9f3e in QEventDispatcherGlib::processEvents (this=0x1a2c9d0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fb85748dcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fb85748def7 in QEventLoop::exec (this=0x7fb849118dd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fb8573a527f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007fb857470cbf in QInotifyFileSystemWatcherEngine::run (this=0x19cdee0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fb8573a7d05 in QThreadPrivate::start (arg=0x19cdee0) at thread/qthread_unix.cpp:331
#9  0x00007fb853c73efc in start_thread (arg=0x7fb849119700) at pthread_create.c:304
#10 0x00007fb85b08359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fb8463d1700 (LWP 2538)):
#0  0x00007fb8537a102a in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb8537a1dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb8537a2429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb8574b9f3e in QEventDispatcherGlib::processEvents (this=0x1aa2010, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fb85748dcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fb85748def7 in QEventLoop::exec (this=0x7fb8463d0dd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fb8573a527f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007fb857470cbf in QInotifyFileSystemWatcherEngine::run (this=0x1d2aad0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fb8573a7d05 in QThreadPrivate::start (arg=0x1d2aad0) at thread/qthread_unix.cpp:331
#9  0x00007fb853c73efc in start_thread (arg=0x7fb8463d1700) at pthread_create.c:304
#10 0x00007fb85b08359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fb85b7a3780 (LWP 2534)):
[KCrash Handler]
#6  operator!= (value=1, this=0x18100a0) at /usr/include/qt4/QtCore/qbasicatomic.h:75
#7  detach (this=0x181ec18) at /usr/include/qt4/QtCore/qhash.h:299
#8  find (this=0x181ec18, akey=@0x7fffc080e6d8) at /usr/include/qt4/QtCore/qhash.h:865
#9  relink (this=0x181ec08, key=@0x7fffc080e6d8) at /usr/include/qt4/QtCore/qcache.h:78
#10 object (key=@0x7fffc080e6d8, this=0x181ec08) at /usr/include/qt4/QtCore/qcache.h:148
#11 object (key=@0x7fffc080e6d8, this=0x181ec08) at ../../../libs/oxygen/oxygenhelper.h:75
#12 Oxygen::Helper::backgroundBottomColor (this=0x181ea70, color=...) at ../../../libs/oxygen/oxygenhelper.cpp:369
#13 0x00007fb84d6e75db in Oxygen::Helper::renderWindowBackground (this=0x181ea70, p=0x7fffc080ed00, clipRect=..., widget=<optimized out>, window=<optimized out>, color=..., yShift=-23, gradientHeight=64) at ../../../libs/oxygen/oxygenhelper.cpp:177
#14 0x00007fb84d986743 in Oxygen::StyleHelper::renderWindowBackground (this=0x181ea70, p=0x7fffc080ed00, clipRect=..., widget=0x18844e0, color=..., y_shift=-23, gradientHeight=64) at ../../../kstyles/oxygen/oxygenstylehelper.h:79
#15 0x00007fb84d953f85 in drawWidgetPrimitive (widget=0x18844e0, painter=0x7fffc080ed00, option=0x7fffc080e9f0, this=0x17fbc50) at ../../../kstyles/oxygen/oxygenstyle.cpp:4212
#16 Oxygen::Style::drawWidgetPrimitive (this=0x17fbc50, option=0x7fffc080e9f0, painter=0x7fffc080ed00, widget=0x18844e0) at ../../../kstyles/oxygen/oxygenstyle.cpp:4196
#17 0x00007fb84d952f8c in Oxygen::Style::drawPrimitive (this=0x17fbc50, element=QStyle::PE_Widget, option=0x7fffc080e9f0, painter=0x7fffc080ed00, widget=0x18844e0) at ../../../kstyles/oxygen/oxygenstyle.cpp:1054
#18 0x00007fb857ed7493 in QWidgetPrivate::paintBackground (this=<optimized out>, painter=0x7fffc080ed00, rgn=..., flags=<optimized out>) at kernel/qwidget.cpp:2398
#19 0x00007fb857edd04c in QWidgetPrivate::drawWidget (this=0x19f2c30, pdev=0x1d34be0, rgn=..., offset=..., flags=5, sharedPainter=0x0, backingStore=0x1b4f6f0) at kernel/qwidget.cpp:5506
#20 0x00007fb8580a0273 in QWidgetBackingStore::sync (this=0x1b4f6f0) at painting/qbackingstore.cpp:1338
#21 0x00007fb857ed33b0 in QWidgetPrivate::syncBackingStore (this=0x19f2c30) at kernel/qwidget.cpp:1862
#22 0x00007fb857ee01ac in QWidget::event (this=0x18844e0, event=0x2fd7aa0) at kernel/qwidget.cpp:8588
#23 0x00007fb8582a1dab in QMainWindow::event (this=0x18844e0, event=0x2fd7aa0) at widgets/qmainwindow.cpp:1478
#24 0x00007fb858ca0ca8 in KXmlGuiWindow::event (this=0x18844e0, ev=0x2fd7aa0) at ../../kdeui/xmlgui/kxmlguiwindow.cpp:126
#25 0x00007fb857e8f474 in notify_helper (e=0x2fd7aa0, receiver=0x18844e0, this=0x1787960) at kernel/qapplication.cpp:4486
#26 QApplicationPrivate::notify_helper (this=0x1787960, receiver=0x18844e0, e=0x2fd7aa0) at kernel/qapplication.cpp:4458
#27 0x00007fb857e942e1 in QApplication::notify (this=0x7fffc080fb20, receiver=0x18844e0, e=0x2fd7aa0) at kernel/qapplication.cpp:4365
#28 0x00007fb858ba4466 in KApplication::notify (this=0x7fffc080fb20, receiver=0x18844e0, event=0x2fd7aa0) at ../../kdeui/kernel/kapplication.cpp:311
#29 0x00007fb85748eafc in QCoreApplication::notifyInternal (this=0x7fffc080fb20, receiver=0x18844e0, event=0x2fd7aa0) at kernel/qcoreapplication.cpp:787
#30 0x00007fb85749251f in sendEvent (event=0x2fd7aa0, receiver=0x18844e0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#31 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1768350) at kernel/qcoreapplication.cpp:1428
#32 0x00007fb8574b9a73 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#33 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#34 0x00007fb8537a1a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007fb8537a2258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007fb8537a2429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007fb8574b9ed6 in QEventDispatcherGlib::processEvents (this=0x1769a00, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#38 0x00007fb857f3710e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#39 0x00007fb85748dcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#40 0x00007fb85748def7 in QEventLoop::exec (this=0x7fffc080fab0, flags=...) at kernel/qeventloop.cpp:201
#41 0x00007fb857492789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#42 0x00007fb85b38c289 in kdemain (argc=6, argv=0x7fffc0810008) at ../../../dolphin/src/main.cpp:85
#43 0x00007fb85afc130d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=6, ubp_av=0x7fffc0810008, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffc080fff8) at libc-start.c:226
#44 0x0000000000400671 in _start ()

Reported using DrKonqi