Bug 301251

Application: rekonq (0.9.1)
KDE Platform Version: 4.8.3 (4.8.3)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-25-generic x86_64
Distribution: Ubuntu 12.04 LTS

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

Exiting private mode I got the crash as captured in the stack backtrace.

-- Backtrace:
Application: rekonq (rekonq), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f0c7a32d780 (LWP 8888))]

Thread 11 (Thread 0x7f0c6493a700 (LWP 8889)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f0c78bbedec in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f0c78bbef19 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f0c73d78e9a in start_thread (arg=0x7f0c6493a700) at pthread_create.c:308
#4  0x00007f0c79b3e4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7f0c63e15700 (LWP 8890)):
#0  0x00007f0c79b32b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f0c7241aff6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0c7241b124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0c74732426 in QEventDispatcherGlib::processEvents (this=0x7f0c5c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f0c74701c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f0c74701ed7 in QEventLoop::exec (this=0x7f0c63e14e00, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f0c74600fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f0c74603fcb in QThreadPrivate::start (arg=0xc0bf00) at thread/qthread_unix.cpp:298
#8  0x00007f0c73d78e9a in start_thread (arg=0x7f0c63e15700) at pthread_create.c:308
#9  0x00007f0c79b3e4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f0c62f99700 (LWP 8891)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f0c79730222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f0c79730259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f0c73d78e9a in start_thread (arg=0x7f0c62f99700) at pthread_create.c:308
#4  0x00007f0c79b3e4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f0c619ce700 (LWP 8892)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f0c746044db in wait (time=18446744073709551615, this=0x973c80) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x9682f0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f0c766510eb in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x968390, th=0xc3fc60) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f0c766539db in ThreadWeaver::WorkingHardState::applyForWork (this=0x975670, th=0xc3fc60) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f0c766539f4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x975670, th=0xc3fc60) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f0c7665284f in ThreadWeaver::ThreadRunHelper::run (this=0x7f0c619cde20, parent=0x968390, th=0xc3fc60) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007f0c766528db in ThreadWeaver::Thread::run (this=0xc3fc60) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007f0c74603fcb in QThreadPrivate::start (arg=0xc3fc60) at thread/qthread_unix.cpp:298
#9  0x00007f0c73d78e9a in start_thread (arg=0x7f0c619ce700) at pthread_create.c:308
#10 0x00007f0c79b3e4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f0c5b057700 (LWP 8894)):
#0  0x00007f0c72456580 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f0c7241a89b in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0c7241af6a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0c7241b124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f0c74732426 in QEventDispatcherGlib::processEvents (this=0x7f0c100008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f0c74701c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f0c74701ed7 in QEventLoop::exec (this=0x7f0c5b056dd0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f0c74600fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007f0c746e19ff in QInotifyFileSystemWatcherEngine::run (this=0xebb250) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f0c74603fcb in QThreadPrivate::start (arg=0xebb250) at thread/qthread_unix.cpp:298
#10 0x00007f0c73d78e9a in start_thread (arg=0x7f0c5b057700) at pthread_create.c:308
#11 0x00007f0c79b3e4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f0be37fe700 (LWP 9257)):
#0  0x00007f0c73d7c05d in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x1af7390) at pthread_mutex_unlock.c:290
#2  0x00007f0c72456591 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0c7241af0e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f0c7241b45a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f0bd64b198b in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
#6  0x00007f0c7243c9a5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f0c73d78e9a in start_thread (arg=0x7f0be37fe700) at pthread_create.c:308
#8  0x00007f0c79b3e4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#9  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f0bfede1700 (LWP 9258)):
#0  0x00007f0c79b32b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f0c7241aff6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0c7241b45a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0bfceb72c6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f0c7243c9a5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f0c73d78e9a in start_thread (arg=0x7f0bfede1700) at pthread_create.c:308
#6  0x00007f0c79b3e4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f0bce08e700 (LWP 9457)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f0c746044db in wait (time=18446744073709551615, this=0x973c80) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x9682f0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f0c766510eb in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x968390, th=0x1f26b20) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f0c766539db in ThreadWeaver::WorkingHardState::applyForWork (this=0x975670, th=0x1f26b20) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f0c7665284f in ThreadWeaver::ThreadRunHelper::run (this=0x7f0bce08de20, parent=0x968390, th=0x1f26b20) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f0c766528db in ThreadWeaver::Thread::run (this=0x1f26b20) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f0c74603fcb in QThreadPrivate::start (arg=0x1f26b20) at thread/qthread_unix.cpp:298
#8  0x00007f0c73d78e9a in start_thread (arg=0x7f0bce08e700) at pthread_create.c:308
#9  0x00007f0c79b3e4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f0bc9954700 (LWP 9462)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f0c746044db in wait (time=18446744073709551615, this=0x973c80) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x9682f0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f0c766510eb in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x968390, th=0x9dc260) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f0c766539db in ThreadWeaver::WorkingHardState::applyForWork (this=0x975670, th=0x9dc260) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f0c7665284f in ThreadWeaver::ThreadRunHelper::run (this=0x7f0bc9953e20, parent=0x968390, th=0x9dc260) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f0c766528db in ThreadWeaver::Thread::run (this=0x9dc260) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f0c74603fcb in QThreadPrivate::start (arg=0x9dc260) at thread/qthread_unix.cpp:298
#8  0x00007f0c73d78e9a in start_thread (arg=0x7f0bc9954700) at pthread_create.c:308
#9  0x00007f0c79b3e4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f0bce88f700 (LWP 9463)):
#0  0x00007f0c79b32b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f0c7241aff6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0c7241b124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0c74732426 in QEventDispatcherGlib::processEvents (this=0x7f0bf4003660, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f0c74701c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f0c74701ed7 in QEventLoop::exec (this=0x7f0bce88edd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f0c74600fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f0c76c57efe in KIO::NameLookUpThread::run (this=0x7f0c080031e0) at ../../kio/kio/hostinfo.cpp:226
#8  0x00007f0c74603fcb in QThreadPrivate::start (arg=0x7f0c080031e0) at thread/qthread_unix.cpp:298
#9  0x00007f0c73d78e9a in start_thread (arg=0x7f0bce88f700) at pthread_create.c:308
#10 0x00007f0c79b3e4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f0c7a32d780 (LWP 8888)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007f0c74f54785 in QStyleSheetStyle::event (this=0x2190820, e=0x7fffac139b30) at styles/qstylesheetstyle.cpp:5798
#8  0x00007f0c74c25894 in notify_helper (e=0x7fffac139b30, receiver=0x2190820, this=0x81e570) at kernel/qapplication.cpp:4559
#9  QApplicationPrivate::notify_helper (this=0x81e570, receiver=0x2190820, e=0x7fffac139b30) at kernel/qapplication.cpp:4531
#10 0x00007f0c74c2a713 in QApplication::notify (this=0x7fffac13ad40, receiver=0x2190820, e=0x7fffac139b30) at kernel/qapplication.cpp:4420
#11 0x00007f0c7719dbb6 in KApplication::notify (this=0x7fffac13ad40, receiver=0x2190820, event=0x7fffac139b30) at ../../kdeui/kernel/kapplication.cpp:311
#12 0x00007f0c74702e9c in QCoreApplication::notifyInternal (this=0x7fffac13ad40, receiver=0x2190820, event=0x7fffac139b30) at kernel/qcoreapplication.cpp:876
#13 0x00007f0c74c240d5 in sendEvent (event=0x7fffac139b30, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#14 QApplicationPrivate::setFocusWidget (focus=0x0, reason=Qt::OtherFocusReason) at kernel/qapplication.cpp:2262
#15 0x00007f0c74c65ba4 in clearFocus (this=0x25dbca0) at kernel/qwidget.cpp:6533
#16 QWidget::clearFocus (this=0x25dbca0) at kernel/qwidget.cpp:6517
#17 0x00007f0c74c70678 in QWidget::~QWidget (this=0x25dbca0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1607
#18 0x00007f0c79ee965e in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_rekonq.so
#19 0x00007f0c74715935 in QObjectPrivate::deleteChildren (this=0x235b7c0) at kernel/qobject.cpp:1908
#20 0x00007f0c74c70740 in QWidget::~QWidget (this=0x1d1bb10, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1676
#21 0x00007f0c79ee7899 in UrlBar::~UrlBar() () from /usr/lib/kde4/libkdeinit/libkdeinit4_rekonq.so
#22 0x00007f0c79eb9a9a in WebTab::~WebTab() () from /usr/lib/kde4/libkdeinit/libkdeinit4_rekonq.so
#23 0x00007f0c79eb9b59 in WebTab::~WebTab() () from /usr/lib/kde4/libkdeinit/libkdeinit4_rekonq.so
#24 0x00007f0c74715935 in QObjectPrivate::deleteChildren (this=0x20f2fa0) at kernel/qobject.cpp:1908
#25 0x00007f0c74c70740 in QWidget::~QWidget (this=0xd87340, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1676
#26 0x00007f0c750914b9 in QStackedWidget::~QStackedWidget (this=0xd87340, __in_chrg=<optimized out>) at widgets/qstackedwidget.cpp:193
#27 0x00007f0c74715935 in QObjectPrivate::deleteChildren (this=0xfccc30) at kernel/qobject.cpp:1908
#28 0x00007f0c74c70740 in QWidget::~QWidget (this=0x100f080, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1676
#29 0x00007f0c79e80724 in MainView::~MainView() () from /usr/lib/kde4/libkdeinit/libkdeinit4_rekonq.so
#30 0x00007f0c74715935 in QObjectPrivate::deleteChildren (this=0x1de1dc0) at kernel/qobject.cpp:1908
#31 0x00007f0c74c70740 in QWidget::~QWidget (this=0x12b7f40, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1676
#32 0x00007f0c74c70a19 in QWidget::~QWidget (this=0x12b7f40, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1700
#33 0x00007f0c74715935 in QObjectPrivate::deleteChildren (this=0x1cbc490) at kernel/qobject.cpp:1908
#34 0x00007f0c74c70740 in QWidget::~QWidget (this=0x1d59e40, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1676
#35 0x00007f0c7725b475 in KMainWindow::~KMainWindow (this=0x1d59e40, __in_chrg=<optimized out>) at ../../kdeui/widgets/kmainwindow.cpp:467
#36 0x00007f0c79e810a1 in MainWindow::~MainWindow() () from /usr/lib/kde4/libkdeinit/libkdeinit4_rekonq.so
#37 0x00007f0c79e810f9 in MainWindow::~MainWindow() () from /usr/lib/kde4/libkdeinit/libkdeinit4_rekonq.so
#38 0x00007f0c7471c478 in QObject::event (this=0x1d59e40, e=<optimized out>) at kernel/qobject.cpp:1176
#39 0x00007f0c74c75b7b in QWidget::event (this=0x1d59e40, event=0x246fb70) at kernel/qwidget.cpp:8821
#40 0x00007f0c7504fc4b in QMainWindow::event (this=0x1d59e40, event=0x246fb70) at widgets/qmainwindow.cpp:1478
#41 0x00007f0c74c25894 in notify_helper (e=0x246fb70, receiver=0x1d59e40, this=0x81e570) at kernel/qapplication.cpp:4559
#42 QApplicationPrivate::notify_helper (this=0x81e570, receiver=0x1d59e40, e=0x246fb70) at kernel/qapplication.cpp:4531
#43 0x00007f0c74c2a713 in QApplication::notify (this=0x7fffac13ad40, receiver=0x1d59e40, e=0x246fb70) at kernel/qapplication.cpp:4420
#44 0x00007f0c7719dbb6 in KApplication::notify (this=0x7fffac13ad40, receiver=0x1d59e40, event=0x246fb70) at ../../kdeui/kernel/kapplication.cpp:311
#45 0x00007f0c74702e9c in QCoreApplication::notifyInternal (this=0x7fffac13ad40, receiver=0x1d59e40, event=0x246fb70) at kernel/qcoreapplication.cpp:876
#46 0x00007f0c74706c6a in sendEvent (event=0x246fb70, receiver=0x1d59e40) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#47 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x7e71f0) at kernel/qcoreapplication.cpp:1500
#48 0x00007f0c74731f93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#49 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#50 0x00007f0c7241ac9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#51 0x00007f0c7241b060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#52 0x00007f0c7241b124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#53 0x00007f0c747323bf in QEventDispatcherGlib::processEvents (this=0x7e8ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#54 0x00007f0c74ccdd5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#55 0x00007f0c74701c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#56 0x00007f0c74701ed7 in QEventLoop::exec (this=0x7fffac13acd0, flags=...) at kernel/qeventloop.cpp:204
#57 0x00007f0c74706f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#58 0x00007f0c79f17c9e in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_rekonq.so
#59 0x00007f0c79a6d76d in __libc_start_main (main=0x400630, argc=1, ubp_av=0x7fffac13b4f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffac13b4e8) at libc-start.c:226
#60 0x0000000000400661 in _start ()

This bug may be a duplicate of or related to bug 276880.

Possible duplicates by query: bug 301198, bug 300694, bug 296612, bug 293812, bug 293497.

Reported using DrKonqi