Application: konqueror (4.5.5 (KDE 4.5.5))
KDE Platform Version: 4.5.5 (KDE 4.5.5)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-30-generic-pae i686
Distribution: Ubuntu 10.10

-- Information about the crash:
I started Konqueror, the initial blank screen appeared, then I clicked on "File" in order to open a local file. At that time Konqueror crashed.

Before I had problems with Firefox crashing on startup, where I couldn't get it working at all. Before the "well it's embarassing" screen of Firefox appeared it was down again. Maybe there is some coincidence?

-- Backtrace:
Application: Konqueror (konqueror), signal: Segmentation fault
[Current thread is 1 (Thread 0xb50f59e0 (LWP 6008))]

Thread 2 (Thread 0xae1d8b70 (LWP 6025)):
#0  0xb57927d4 in __pthread_mutex_unlock_usercnt () from /lib/libpthread.so.0
#1  0xb7603fa6 in pthread_mutex_unlock () from /lib/libc.so.6
#2  0xb5497e58 in g_main_context_prepare () from /lib/libglib-2.0.so.0
#3  0xb5498279 in ?? () from /lib/libglib-2.0.so.0
#4  0xb5498848 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#5  0xb689e59f in QEventDispatcherGlib::processEvents (this=0x8953b78, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#6  0xb686e609 in QEventLoop::processEvents (this=0xae1d8290, flags=) at kernel/qeventloop.cpp:149
#7  0xb686ea8a in QEventLoop::exec (this=0xae1d8290, flags=...) at kernel/qeventloop.cpp:201
#8  0xb676ab7e in QThread::exec (this=0x87c8c38) at thread/qthread.cpp:490
#9  0xb684d35b in QInotifyFileSystemWatcherEngine::run (this=0x87c8c38) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb676ddf9 in QThreadPrivate::start (arg=0x87c8c38) at thread/qthread_unix.cpp:266
#11 0xb578ecc9 in start_thread () from /lib/libpthread.so.0
#12 0xb75f669e in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb50f59e0 (LWP 6008)):
[KCrash Handler]
#7  0xb72bd401 in XGrabPointer () from /usr/lib/libX11.so.6
#8  0xb5d76cf9 in QApplicationPrivate::openPopup (this=0x8575a08, popup=0x86ae720) at kernel/qapplication_x11.cpp:3956
#9  0xb5d556ff in QWidgetPrivate::show_helper (this=0x87b3470) at kernel/qwidget.cpp:7379
#10 0xb5d56e9b in QWidget::setVisible (this=0x86ae720, visible=true) at kernel/qwidget.cpp:7589
#11 0xb61bb946 in show (this=0x86ae720, p=..., atAction=0x0) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:487
#12 QMenu::popup (this=0x86ae720, p=..., atAction=0x0) at widgets/qmenu.cpp:1979
#13 0xb61c84a8 in QMenuBarPrivate::popupAction (this=0x86062b0, action=0x87b3660, activateFirst=false) at widgets/qmenubar.cpp:384
#14 0xb61c870c in QMenuBarPrivate::setCurrentAction (this=0x86062b0, action=0x87b3660, popup=true, activateFirst=true) at widgets/qmenubar.cpp:421
#15 0xb61c8cbc in QMenuBar::mousePressEvent (this=0x87b4c18, e=0xbfc0e660) at widgets/qmenubar.cpp:1156
#16 0xb5d50dec in QWidget::event (this=0x87b4c18, event=0xbfc0e660) at kernel/qwidget.cpp:8183
#17 0xb61c93bf in QMenuBar::event (this=0x87b4c18, e=0xbfc0e660) at widgets/qmenubar.cpp:1611
#18 0xb5cf2fdc in QApplicationPrivate::notify_helper (this=0x8575a08, receiver=0x87b4c18, e=0xbfc0e660) at kernel/qapplication.cpp:4396
#19 0xb5cf9c2e in QApplication::notify (this=0xbfc0f030, receiver=0x87b4c18, e=0xbfc0e660) at kernel/qapplication.cpp:3959
#20 0xb6e03d8a in KApplication::notify (this=0xbfc0f030, receiver=0x87b4c18, event=0xbfc0e660) at ../../kdeui/kernel/kapplication.cpp:310
#21 0xb686fb3b in QCoreApplication::notifyInternal (this=0xbfc0f030, receiver=0x87b4c18, event=0xbfc0e660) at kernel/qcoreapplication.cpp:732
#22 0xb5cf8094 in sendEvent (receiver=0x87b4c18, event=0xbfc0e660, alienWidget=0x87b4c18, nativeWidget=0x85de218, buttonDown=0xb668d3c0, lastMouseReceiver=..., spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#23 QApplicationPrivate::sendMouseEvent (receiver=0x87b4c18, event=0xbfc0e660, alienWidget=0x87b4c18, nativeWidget=0x85de218, buttonDown=0xb668d3c0, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3058
#24 0xb5d86d10 in QETWidget::translateMouseEvent (this=0x85de218, event=0xbfc0eb7c) at kernel/qapplication_x11.cpp:4403
#25 0xb5d86151 in QApplication::x11ProcessEvent (this=0xbfc0f030, event=0xbfc0eb7c) at kernel/qapplication_x11.cpp:3414
#26 0xb5db536a in x11EventSourceDispatch (s=0x8578c00, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#27 0xb5494855 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#28 0xb5498668 in ?? () from /lib/libglib-2.0.so.0
#29 0xb5498848 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#30 0xb689e565 in QEventDispatcherGlib::processEvents (this=0x855db58, flags=...) at kernel/qeventdispatcher_glib.cpp:415
#31 0xb5db4be5 in QGuiEventDispatcherGlib::processEvents (this=0x855db58, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#32 0xb686e609 in QEventLoop::processEvents (this=0xbfc0ee74, flags=) at kernel/qeventloop.cpp:149
#33 0xb686ea8a in QEventLoop::exec (this=0xbfc0ee74, flags=...) at kernel/qeventloop.cpp:201
#34 0xb687300f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#35 0xb5cf1e07 in QApplication::exec () at kernel/qapplication.cpp:3672
#36 0xb775c592 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_konqueror.so
#37 0x080485ab in _start ()

Possible duplicates by query: bug 158714.

Reported using DrKonqi