Application: rekonq (1.3)
KDE Platform Version: 4.9.4
Qt Version: 4.8.3
Operating System: Linux 3.5.0-21-generic i686
Distribution: Ubuntu 12.10

-- Information about the crash:
- What I was doing when the application crashed:

When I close reqonq an error message the crash report wizard is instantly showing up. I'm running  Kubuntu 12.10. It seems to be occuring sporadically, I was not able to reproduce it the second time I tried, but it has happened before. Similar reports were either marked duplicate or resolved, hence filinga new one.

-- Backtrace:
Application: rekonq (rekonq), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb2f4c980 (LWP 5190))]

Thread 6 (Thread 0xb03efb40 (LWP 5194)):
#0  0xb772a424 in __kernel_vsyscall ()
#1  0xb3f1e96b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0xb750064c in __pthread_cond_wait (cond=0xb7402670, mutex=0xb7402658) at forward.c:139
#3  0xb72f01cd in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0xb72f01ff in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0xb3f1ad4c in start_thread (arg=0xb03efb40) at pthread_create.c:308
#6  0xb74f2d3e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 5 (Thread 0xaf508b40 (LWP 5208)):
#0  0xb772a424 in __kernel_vsyscall ()
#1  0xb3f1e96b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0xb750064c in __pthread_cond_wait (cond=0xb716e470, mutex=0xb716e458) at forward.c:139
#3  0xb6a170e9 in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#4  0xb6a171df in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#5  0xb3f1ad4c in start_thread (arg=0xaf508b40) at pthread_create.c:308
#6  0xb74f2d3e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 4 (Thread 0xaebdfb40 (LWP 5209)):
#0  0xb3f1dc64 in __pthread_mutex_unlock_usercnt (mutex=0xae200558, decr=1) at pthread_mutex_unlock.c:52
#1  0xb75008a4 in pthread_mutex_unlock (mutex=0xae200558) at forward.c:184
#2  0xb3bcd2d0 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb3b896ca in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb3b89ba2 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb3b89d71 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb4d4099f in QEventDispatcherGlib::processEvents (this=0xae200468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0xb4d0d26c in QEventLoop::processEvents (this=this@entry=0xaebdf258, flags=...) at kernel/qeventloop.cpp:149
#8  0xb4d0d561 in QEventLoop::exec (this=0xaebdf258, flags=...) at kernel/qeventloop.cpp:204
#9  0xb4bf866c in QThread::exec (this=this@entry=0x8b1db20) at thread/qthread.cpp:501
#10 0xb4bf87cb in QThread::run (this=0x8b1db20) at thread/qthread.cpp:568
#11 0xb4bfba58 in QThreadPrivate::start (arg=0x8b1db20) at thread/qthread_unix.cpp:338
#12 0xb3f1ad4c in start_thread (arg=0xaebdfb40) at pthread_create.c:308
#13 0xb74f2d3e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 3 (Thread 0xae053b40 (LWP 5211)):
#0  0xb3bccfaa in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb3bcd288 in g_mutex_lock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb3b89446 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb3b89b0f in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb3b89d71 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb4d4099f in QEventDispatcherGlib::processEvents (this=0xad700468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0xb4d0d26c in QEventLoop::processEvents (this=this@entry=0xae053258, flags=...) at kernel/qeventloop.cpp:149
#7  0xb4d0d561 in QEventLoop::exec (this=0xae053258, flags=...) at kernel/qeventloop.cpp:204
#8  0xb4bf866c in QThread::exec (this=this@entry=0x8a32498) at thread/qthread.cpp:501
#9  0xb4bf87cb in QThread::run (this=0x8a32498) at thread/qthread.cpp:568
#10 0xb4bfba58 in QThreadPrivate::start (arg=0x8a32498) at thread/qthread_unix.cpp:338
#11 0xb3f1ad4c in start_thread (arg=0xae053b40) at pthread_create.c:308
#12 0xb74f2d3e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 2 (Thread 0xacaabb40 (LWP 5223)):
#0  0xb3bccfaa in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb3bcd2c8 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb3b89425 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb3b89b0f in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb3b89d71 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb4d4099f in QEventDispatcherGlib::processEvents (this=0xad7084f8, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0xb4d0d26c in QEventLoop::processEvents (this=this@entry=0xacaab228, flags=...) at kernel/qeventloop.cpp:149
#7  0xb4d0d561 in QEventLoop::exec (this=0xacaab228, flags=...) at kernel/qeventloop.cpp:204
#8  0xb4bf866c in QThread::exec (this=0x8d0d848) at thread/qthread.cpp:501
#9  0xb4ceb7bd in QInotifyFileSystemWatcherEngine::run (this=0x8d0d848) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb4bfba58 in QThreadPrivate::start (arg=0x8d0d848) at thread/qthread_unix.cpp:338
#11 0xb3f1ad4c in start_thread (arg=0xacaabb40) at pthread_create.c:308
#12 0xb74f2d3e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb2f4c980 (LWP 5190)):
[KCrash Handler]
#7  0x00000000 in ?? ()
#8  0xb44ed216 in QStyleSheetStyle::event (this=0x8c7b328, e=0xbf98f4d0) at styles/qstylesheetstyle.cpp:5798
#9  0xb418039c in QApplicationPrivate::notify_helper (this=0x891db60, receiver=0x8c7b328, e=0xbf98f4d0) at kernel/qapplication.cpp:4562
#10 0xb4184daf in QApplication::notify (this=0xbf98f4d0, receiver=0x8c7b328, e=0xbf98f4d0) at kernel/qapplication.cpp:3944
#11 0xb57cce91 in KApplication::notify (this=0xbf990490, receiver=0x8c7b328, event=0xbf98f4d0) at ../../kdeui/kernel/kapplication.cpp:311
#12 0xb4d0e78e in QCoreApplication::notifyInternal (this=0xbf990490, receiver=0x8c7b328, event=0xbf98f4d0) at kernel/qcoreapplication.cpp:915
#13 0xb417e93a in sendEvent (event=0xbf98f4d0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#14 QApplicationPrivate::setFocusWidget (focus=0x0, reason=Qt::OtherFocusReason) at kernel/qapplication.cpp:2265
#15 0xb41c681c in clearFocus (this=0x93ae4d8) at kernel/qwidget.cpp:6542
#16 QWidget::clearFocus (this=0x93ae4d8) at kernel/qwidget.cpp:6526
#17 0xb41d31a5 in QWidget::~QWidget (this=0x93ae4d8, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1608
#18 0xb459f9f2 in QAbstractButton::~QAbstractButton (this=0x93ae4d8, __in_chrg=<optimized out>) at widgets/qabstractbutton.cpp:599
#19 0xb467522f in QToolButton::~QToolButton (this=0x93ae4d8, __in_chrg=<optimized out>) at widgets/qtoolbutton.cpp:407
#20 0xb76acdd2 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_rekonq.so
#21 0xb4d22a59 in QObjectPrivate::deleteChildren (this=0x8c05850) at kernel/qobject.cpp:1908
#22 0xb41d3258 in QWidget::~QWidget (this=0x8c192c8, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1677
#23 0xb45f72ff in QLineEdit::~QLineEdit (this=0x8c192c8, __in_chrg=<optimized out>) at widgets/qlineedit.cpp:357
#24 0xb5896f06 in KLineEdit::~KLineEdit (this=0x8c192c8, __in_chrg=<optimized out>) at ../../kdeui/widgets/klineedit.cpp:247
#25 0xb76ab32f in UrlBar::~UrlBar() () from /usr/lib/kde4/libkdeinit/libkdeinit4_rekonq.so
#26 0xb76ab392 in UrlBar::~UrlBar() () from /usr/lib/kde4/libkdeinit/libkdeinit4_rekonq.so
#27 0xb4d22a59 in QObjectPrivate::deleteChildren (this=0x8aa76f8) at kernel/qobject.cpp:1908
#28 0xb41d3258 in QWidget::~QWidget (this=0x8a676e0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1677
#29 0xb45e961f in QFrame::~QFrame (this=0x8a676e0, __in_chrg=<optimized out>) at widgets/qframe.cpp:240
#30 0xb464fb8f in QStackedWidget::~QStackedWidget (this=0x8a676e0, __in_chrg=<optimized out>) at widgets/qstackedwidget.cpp:191
#31 0xb76a8565 in StackedUrlBar::~StackedUrlBar() () from /usr/lib/kde4/libkdeinit/libkdeinit4_rekonq.so
#32 0xb41e0347 in QWidgetAction::~QWidgetAction (this=0x8aed278, __in_chrg=<optimized out>) at kernel/qwidgetaction.cpp:128
#33 0xb56d4ea1 in KAction::~KAction (this=0x8aed278, __in_chrg=<optimized out>) at ../../kdeui/actions/kaction.cpp:160
#34 0xb56d4f02 in KAction::~KAction (this=0x8aed278, __in_chrg=<optimized out>) at ../../kdeui/actions/kaction.cpp:171
#35 0xb4d22a59 in QObjectPrivate::deleteChildren (this=0x8a4d1b0) at kernel/qobject.cpp:1908
#36 0xb41d3258 in QWidget::~QWidget (this=0x8aa5a20, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1677
#37 0xb4604c7f in QMainWindow::~QMainWindow (this=0x8aa5a20, __in_chrg=<optimized out>) at widgets/qmainwindow.cpp:388
#38 0xb58a2594 in KMainWindow::~KMainWindow (this=0x8aa5a20, __in_chrg=<optimized out>) at ../../kdeui/widgets/kmainwindow.cpp:467
#39 0xb58e978c in KXmlGuiWindow::~KXmlGuiWindow (this=0x8aa5a20, __vtt_parm=0xb771f06c <VTT for MainWindow+4>, __in_chrg=<optimized out>) at ../../kdeui/xmlgui/kxmlguiwindow.cpp:118
#40 0xb763433e in MainWindow::~MainWindow() () from /usr/lib/kde4/libkdeinit/libkdeinit4_rekonq.so
#41 0xb76343b2 in MainWindow::~MainWindow() () from /usr/lib/kde4/libkdeinit/libkdeinit4_rekonq.so
#42 0xb4d22783 in qDeleteInEventHandler (o=o@entry=0x8aa5a20) at kernel/qobject.cpp:4277
#43 0xb4d24f10 in QObject::event (this=0x8aa5a20, e=0x95d2860) at kernel/qobject.cpp:1176
#44 0xb41d8f4a in QWidget::event (this=0x8aa5a20, event=0x95d2860) at kernel/qwidget.cpp:8830
#45 0xb460705c in QMainWindow::event (this=0x8aa5a20, event=0x95d2860) at widgets/qmainwindow.cpp:1478
#46 0xb58a2284 in KMainWindow::event (this=0x8aa5a20, ev=0x95d2860) at ../../kdeui/widgets/kmainwindow.cpp:1084
#47 0xb763612c in MainWindow::event(QEvent*) () from /usr/lib/kde4/libkdeinit/libkdeinit4_rekonq.so
#48 0xb418039c in QApplicationPrivate::notify_helper (this=0x891db60, receiver=0x8aa5a20, e=0x95d2860) at kernel/qapplication.cpp:4562
#49 0xb4184e54 in QApplication::notify (this=0x891db60, receiver=0x8aa5a20, e=0x95d2860) at kernel/qapplication.cpp:4423
#50 0xb57cce91 in KApplication::notify (this=0xbf990490, receiver=0x8aa5a20, event=0x95d2860) at ../../kdeui/kernel/kapplication.cpp:311
#51 0xb4d0e78e in QCoreApplication::notifyInternal (this=0xbf990490, receiver=0x8aa5a20, event=0x95d2860) at kernel/qcoreapplication.cpp:915
#52 0xb4d1297d in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#53 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x88ea130) at kernel/qcoreapplication.cpp:1539
#54 0xb4d12c0c in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1432
#55 0xb4d40804 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#56 postEventSourceDispatch (s=0x8914278) at kernel/qeventdispatcher_glib.cpp:279
#57 0xb3b898f3 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#58 0xb3b89c90 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#59 0xb3b89d71 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#60 0xb4d40981 in QEventDispatcherGlib::processEvents (this=0x8917ee8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#61 0xb42369aa in QGuiEventDispatcherGlib::processEvents (this=0x8917ee8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#62 0xb4d0d26c in QEventLoop::processEvents (this=this@entry=0xbf9903b8, flags=...) at kernel/qeventloop.cpp:149
#63 0xb4d0d561 in QEventLoop::exec (this=0xbf9903b8, flags=...) at kernel/qeventloop.cpp:204
#64 0xb4d12cba in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#65 0xb417dfc4 in QApplication::exec () at kernel/qapplication.cpp:3823
#66 0xb76e5f60 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_rekonq.so
#67 0x0804854b in ?? ()
#68 0xb741d4d3 in __libc_start_main (main=0x8048530, argc=2, ubp_av=0xbf9905c4, init=0x8048650 <__libc_csu_init>, fini=0x80486c0 <__libc_csu_fini>, rtld_fini=0xb773a270 <_dl_fini>, stack_end=0xbf9905bc) at libc-start.c:226
#69 0x08048571 in _start ()

Possible duplicates by query: bug 311738, bug 311567, bug 310905, bug 310470, bug 308815.

Reported using DrKonqi