Bug 293497

Application: rekonq (0.8.0)
KDE Platform Version: 4.7.4 (4.7.4)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-15-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
switched from private to normal mode, then closed reconq.

The crash can be reproduced every time.

-- Backtrace:
Application: rekonq (rekonq), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f63edbe8780 (LWP 3880))]

Thread 10 (Thread 0x7f63cec9e700 (LWP 3881)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f63ec4c2c2c in WTF::TCMalloc_PageHeap::scavengerThread (this=0x7f63ece79220) at wtf/FastMalloc.cpp:2495
#2  0x00007f63ec4c2d59 in WTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at wtf/FastMalloc.cpp:1618
#3  0x00007f63e7bf2efc in start_thread (arg=0x7f63cec9e700) at pthread_create.c:304
#4  0x00007f63ed42189d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f63ce39d700 (LWP 3882)):
#0  0x00007f63ed415773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f63e6025f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f63e6026429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f63e82a6f3e in QEventDispatcherGlib::processEvents (this=0x12c6100, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f63e827acf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f63e827aef7 in QEventLoop::exec (this=0x7f63ce39ce00, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f63e819227f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f63e8194d05 in QThreadPrivate::start (arg=0x12c87e0) at thread/qthread_unix.cpp:331
#8  0x00007f63e7bf2efc in start_thread (arg=0x7f63ce39d700) at pthread_create.c:304
#9  0x00007f63ed42189d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f63cd525700 (LWP 3883)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f63ed023fe2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f63ed024019 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f63e7bf2efc in start_thread (arg=0x7f63cd525700) at pthread_create.c:304
#4  0x00007f63ed42189d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f63c7fff700 (LWP 3884)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f63e81951ab in wait (time=18446744073709551615, this=0x10930e0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1061bf0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f63ea1a6864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1076d80, th=0x182a5f0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f63ea1a8e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1061900, th=0x182a5f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f63ea1a8e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1061900, th=0x182a5f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f63ea1a8e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1061900, th=0x182a5f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f63ea1a8e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1061900, th=0x182a5f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#8  0x00007f63ea1a8e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1061900, th=0x182a5f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#9  0x00007f63ea1a7ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f63c7ffee20, parent=0x1076d80, th=0x182a5f0) at ../../../threadweaver/Weaver/Thread.cpp:87
#10 0x00007f63ea1a7d5b in ThreadWeaver::Thread::run (this=0x182a5f0) at ../../../threadweaver/Weaver/Thread.cpp:142
#11 0x00007f63e8194d05 in QThreadPrivate::start (arg=0x182a5f0) at thread/qthread_unix.cpp:331
#12 0x00007f63e7bf2efc in start_thread (arg=0x7f63c7fff700) at pthread_create.c:304
#13 0x00007f63ed42189d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f63c57d0700 (LWP 3886)):
#0  idleTimerSourcePrepare (source=<optimized out>, timeout=0x7f63c57cfc3c) at kernel/qeventdispatcher_glib.cpp:207
#1  0x00007f63e6024ff2 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f63e6025dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f63e6026429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f63e82a6f3e in QEventDispatcherGlib::processEvents (this=0x1329100, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f63e827acf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f63e827aef7 in QEventLoop::exec (this=0x7f63c57cfdd0, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007f63e819227f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#8  0x00007f63e825dcbf in QInotifyFileSystemWatcherEngine::run (this=0x475cf70) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f63e8194d05 in QThreadPrivate::start (arg=0x475cf70) at thread/qthread_unix.cpp:331
#10 0x00007f63e7bf2efc in start_thread (arg=0x7f63c57d0700) at pthread_create.c:304
#11 0x00007f63ed42189d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f6380247700 (LWP 4167)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f63e81951ab in wait (time=18446744073709551615, this=0x10930e0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1061bf0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f63ea1a6864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1076d80, th=0x16c3ff0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f63ea1a8e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1061900, th=0x16c3ff0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f63ea1a8e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1061900, th=0x16c3ff0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f63ea1a8e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1061900, th=0x16c3ff0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f63ea1a8e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1061900, th=0x16c3ff0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#8  0x00007f63ea1a7ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f6380246e20, parent=0x1076d80, th=0x16c3ff0) at ../../../threadweaver/Weaver/Thread.cpp:87
#9  0x00007f63ea1a7d5b in ThreadWeaver::Thread::run (this=0x16c3ff0) at ../../../threadweaver/Weaver/Thread.cpp:142
#10 0x00007f63e8194d05 in QThreadPrivate::start (arg=0x16c3ff0) at thread/qthread_unix.cpp:331
#11 0x00007f63e7bf2efc in start_thread (arg=0x7f6380247700) at pthread_create.c:304
#12 0x00007f63ed42189d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f637ebdf700 (LWP 4327)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f63e81951ab in wait (time=18446744073709551615, this=0x10930e0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1061bf0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f63ea1a6864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1076d80, th=0x4a6ff30) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f63ea1a8e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1061900, th=0x4a6ff30) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f63ea1a8e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1061900, th=0x4a6ff30) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f63ea1a8e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1061900, th=0x4a6ff30) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f63ea1a8e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1061900, th=0x4a6ff30) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#8  0x00007f63ea1a8e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1061900, th=0x4a6ff30) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#9  0x00007f63ea1a8e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1061900, th=0x4a6ff30) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#10 0x00007f63ea1a8e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1061900, th=0x4a6ff30) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#11 0x00007f63ea1a7ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f637ebdee20, parent=0x1076d80, th=0x4a6ff30) at ../../../threadweaver/Weaver/Thread.cpp:87
#12 0x00007f63ea1a7d5b in ThreadWeaver::Thread::run (this=0x4a6ff30) at ../../../threadweaver/Weaver/Thread.cpp:142
#13 0x00007f63e8194d05 in QThreadPrivate::start (arg=0x4a6ff30) at thread/qthread_unix.cpp:331
#14 0x00007f63e7bf2efc in start_thread (arg=0x7f637ebdf700) at pthread_create.c:304
#15 0x00007f63ed42189d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#16 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f637dfcf700 (LWP 4595)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f63e81951ab in wait (time=18446744073709551615, this=0x10930e0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1061bf0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f63ea1a6864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1076d80, th=0x5b33990) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f63ea1a8e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1061900, th=0x5b33990) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f63ea1a7ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f637dfcee20, parent=0x1076d80, th=0x5b33990) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f63ea1a7d5b in ThreadWeaver::Thread::run (this=0x5b33990) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f63e8194d05 in QThreadPrivate::start (arg=0x5b33990) at thread/qthread_unix.cpp:331
#8  0x00007f63e7bf2efc in start_thread (arg=0x7f637dfcf700) at pthread_create.c:304
#9  0x00007f63ed42189d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f63767fc700 (LWP 4601)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f63767fbaf0 in ?? ()
#2  0x00007fff57dff7e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 1 (Thread 0x7f63edbe8780 (LWP 3880)):
[KCrash Handler]
#6  0x00007f63e8ac3752 in QStyleSheetStyle::event (this=0x5db57c0, e=0x7fff57d761a0) at styles/qstylesheetstyle.cpp:5808
#7  0x00007f63e87ac474 in notify_helper (e=0x7fff57d761a0, receiver=0x5db57c0, this=0xf45800) at kernel/qapplication.cpp:4486
#8  QApplicationPrivate::notify_helper (this=0xf45800, receiver=0x5db57c0, e=0x7fff57d761a0) at kernel/qapplication.cpp:4458
#9  0x00007f63e87b12e1 in QApplication::notify (this=0x7fff57d76f30, receiver=0x5db57c0, e=0x7fff57d761a0) at kernel/qapplication.cpp:4365
#10 0x00007f63eace8466 in KApplication::notify (this=0x7fff57d76f30, receiver=0x5db57c0, event=0x7fff57d761a0) at ../../kdeui/kernel/kapplication.cpp:311
#11 0x00007f63e827bafc in QCoreApplication::notifyInternal (this=0x7fff57d76f30, receiver=0x5db57c0, event=0x7fff57d761a0) at kernel/qcoreapplication.cpp:787
#12 0x00007f63e87aacb5 in sendEvent (event=0x7fff57d761a0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#13 QApplicationPrivate::setFocusWidget (focus=0x0, reason=Qt::OtherFocusReason) at kernel/qapplication.cpp:2248
#14 0x00007f63e87ed494 in clearFocus (this=0x549c9a0) at kernel/qwidget.cpp:6470
#15 QWidget::clearFocus (this=0x549c9a0) at kernel/qwidget.cpp:6454
#16 0x00007f63e87f8064 in QWidget::~QWidget (this=0x549c9a0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1583
#17 0x00007f63ed7ac009 in UrlBar::~UrlBar (this=0x549c9a0, __in_chrg=<optimized out>) at /build/buildd/rekonq-0.8.0/src/urlbar/urlbar.cpp:136
#18 0x00007f63e828dd75 in QObjectPrivate::deleteChildren (this=0x5082d70) at kernel/qobject.cpp:1955
#19 0x00007f63e87f812a in QWidget::~QWidget (this=0x50aa140, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1651
#20 0x00007f63ed7a9711 in ~StackedUrlBar (this=0x50aa140, __in_chrg=<optimized out>) at /build/buildd/rekonq-0.8.0/src/urlbar/stackedurlbar.h:41
#21 StackedUrlBar::~StackedUrlBar (this=<optimized out>, __in_chrg=<optimized out>) at /build/buildd/rekonq-0.8.0/src/urlbar/stackedurlbar.h:41
#22 0x00007f63e8803649 in QWidgetAction::~QWidgetAction (this=0x5b351b0, __in_chrg=<optimized out>) at kernel/qwidgetaction.cpp:128
#23 0x00007f63eac01969 in KAction::~KAction (this=0x5b351b0, __in_chrg=<optimized out>) at ../../kdeui/actions/kaction.cpp:171
#24 0x00007f63e828dd75 in QObjectPrivate::deleteChildren (this=0x5169540) at kernel/qobject.cpp:1955
#25 0x00007f63e87f812a in QWidget::~QWidget (this=0x5392610, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1651
#26 0x00007f63ed74b171 in MainWindow::~MainWindow (this=0x5392610, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at /build/buildd/rekonq-0.8.0/src/mainwindow.cpp:174
#27 0x00007f63ed74b1c9 in MainWindow::~MainWindow (this=0x5392610, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at /build/buildd/rekonq-0.8.0/src/mainwindow.cpp:181
#28 0x00007f63e8292a88 in QObject::event (this=0x5392610, e=<optimized out>) at kernel/qobject.cpp:1200
#29 0x00007f63e87fc73b in QWidget::event (this=0x5392610, event=0x618cb70) at kernel/qwidget.cpp:8754
#30 0x00007f63e8bbedab in QMainWindow::event (this=0x5392610, event=0x618cb70) at widgets/qmainwindow.cpp:1478
#31 0x00007f63e87ac474 in notify_helper (e=0x618cb70, receiver=0x5392610, this=0xf45800) at kernel/qapplication.cpp:4486
#32 QApplicationPrivate::notify_helper (this=0xf45800, receiver=0x5392610, e=0x618cb70) at kernel/qapplication.cpp:4458
#33 0x00007f63e87b12e1 in QApplication::notify (this=0x7fff57d76f30, receiver=0x5392610, e=0x618cb70) at kernel/qapplication.cpp:4365
#34 0x00007f63eace8466 in KApplication::notify (this=0x7fff57d76f30, receiver=0x5392610, event=0x618cb70) at ../../kdeui/kernel/kapplication.cpp:311
#35 0x00007f63e827bafc in QCoreApplication::notifyInternal (this=0x7fff57d76f30, receiver=0x5392610, event=0x618cb70) at kernel/qcoreapplication.cpp:787
#36 0x00007f63e827f51f in sendEvent (event=0x618cb70, receiver=0x5392610) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#37 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xf17430) at kernel/qcoreapplication.cpp:1428
#38 0x00007f63e82a6a73 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#39 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#40 0x00007f63e6025a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#41 0x00007f63e6026258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#42 0x00007f63e6026429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007f63e82a6ed6 in QEventDispatcherGlib::processEvents (this=0xf18f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#44 0x00007f63e885410e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#45 0x00007f63e827acf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#46 0x00007f63e827aef7 in QEventLoop::exec (this=0x7fff57d76ec0, flags=...) at kernel/qeventloop.cpp:201
#47 0x00007f63e827f789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#48 0x00007f63ed7d3b97 in kdemain (argc=2, argv=<optimized out>) at /build/buildd/rekonq-0.8.0/src/main.cpp:215
#49 0x00007f63ed36130d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=2, ubp_av=0x7fff57d778c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff57d778b8) at libc-start.c:226
#50 0x0000000000400661 in _start ()

Possible duplicates by query: bug 293312, bug 293156, bug 292915, bug 292005, bug 290044.

Reported using DrKonqi