Application: rekonq (0.7.0)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-8-generic x86_64
Distribution: Ubuntu 11.04

-- Information about the crash:
I was surfing on the Internet and then I close Rekonq. Then I get an error message.
This happens almost always.

The crash can be reproduced some of the time.

-- Backtrace:
Application: rekonq (rekonq), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fe299596780 (LWP 2560))]

Thread 6 (Thread 0x7fe284055700 (LWP 2561)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fe298015832 in ?? () from /usr/lib/libQtWebKit.so.4
#2  0x00007fe29379dd8c in start_thread (arg=0x7fe284055700) at pthread_create.c:304
#3  0x00007fe298dff04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fe282a4c700 (LWP 2562)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fe2989f12a2 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7fe298d0a180) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007fe2989f12d9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x7fe298d18254) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007fe29379dd8c in start_thread (arg=0x7fe282a4c700) at pthread_create.c:304
#4  0x00007fe298dff04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fe28154b700 (LWP 2563)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fe293fb482b in wait (this=<value optimized out>, mutex=0x127ddd0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x127ddd0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fe295f740b4 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x127ea50, th=0x15e5b70) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fe295f76723 in ThreadWeaver::WorkingHardState::applyForWork (this=0x127da60, th=0x15e5b70) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fe295f7553f in ThreadWeaver::ThreadRunHelper::run (this=0x7fe28154ae20, parent=0x127ea50, th=0x15e5b70) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fe295f755cb in ThreadWeaver::Thread::run (this=0x15e5b70) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fe293fb4175 in QThreadPrivate::start (arg=0x15e5b70) at thread/qthread_unix.cpp:320
#8  0x00007fe29379dd8c in start_thread (arg=0x7fe28154b700) at pthread_create.c:304
#9  0x00007fe298dff04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fe27f171700 (LWP 2564)):
#0  0x00007fe298df1f03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fe2901d6104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe2901d6639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe2940c6446 in QEventDispatcherGlib::processEvents (this=0x7fe2780008b0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fe29409a882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fe29409aabc in QEventLoop::exec (this=0x7fe27f170dd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fe293fb1924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007fe29407cc2f in QInotifyFileSystemWatcherEngine::run (this=0x1436d30) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fe293fb4175 in QThreadPrivate::start (arg=0x1436d30) at thread/qthread_unix.cpp:320
#9  0x00007fe29379dd8c in start_thread (arg=0x7fe27f171700) at pthread_create.c:304
#10 0x00007fe298dff04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fe2720eb700 (LWP 2572)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fe293fb482b in wait (this=<value optimized out>, mutex=0x127ddd0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x127ddd0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fe295f740b4 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x127ea50, th=0x1293200) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fe295f76723 in ThreadWeaver::WorkingHardState::applyForWork (this=0x127da60, th=0x1293200) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fe295f7553f in ThreadWeaver::ThreadRunHelper::run (this=0x7fe2720eae20, parent=0x127ea50, th=0x1293200) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fe295f755cb in ThreadWeaver::Thread::run (this=0x1293200) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fe293fb4175 in QThreadPrivate::start (arg=0x1293200) at thread/qthread_unix.cpp:320
#8  0x00007fe29379dd8c in start_thread (arg=0x7fe2720eb700) at pthread_create.c:304
#9  0x00007fe298dff04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fe299596780 (LWP 2560)):
[KCrash Handler]
#6  0x00007fe29477cfa9 in QRasterWindowSurface::~QRasterWindowSurface (this=0x1a2ad40, __in_chrg=<value optimized out>) at painting/qwindowsurface_raster.cpp:104
#7  0x00007fe29477d029 in QRasterWindowSurface::~QRasterWindowSurface (this=0x1a2ad40, __in_chrg=<value optimized out>) at painting/qwindowsurface_raster.cpp:108
#8  0x00007fe2947975e2 in QWidgetBackingStore::~QWidgetBackingStore (this=0x1a2b350, __in_chrg=<value optimized out>) at painting/qbackingstore.cpp:883
#9  0x00007fe2945d3779 in QWidgetBackingStoreTracker::destroy (this=0x1a2be10) at kernel/qwidget.cpp:210
#10 0x00007fe2945d38c9 in QWidgetPrivate::deleteExtra (this=0x16c05c0) at kernel/qwidget.cpp:1776
#11 0x00007fe2945d3b0c in QWidgetPrivate::~QWidgetPrivate (this=0x16c05c0, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:337
#12 0x00007fe2949cde6d in ~QMenuPrivate (this=0x16c05c0, __in_chrg=<value optimized out>) at widgets/qmenu_p.h:171
#13 QMenuPrivate::~QMenuPrivate (this=0x16c05c0, __in_chrg=<value optimized out>) at widgets/qmenu_p.h:183
#14 0x00007fe2940b2645 in cleanup (this=0x16baf70, __in_chrg=<value optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:62
#15 ~QScopedPointer (this=0x16baf70, __in_chrg=<value optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:100
#16 QObject::~QObject (this=0x16baf70, __in_chrg=<value optimized out>) at kernel/qobject.cpp:818
#17 0x00007fe2945d5f70 in QWidget::~QWidget (this=0x16baf70, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:1508
#18 0x00007fe296b83119 in KMenu::~KMenu (this=0x16baf70, __in_chrg=<value optimized out>) at ../../kdeui/widgets/kmenu.cpp:167
#19 0x00007fe2969e0546 in KActionMenu::~KActionMenu (this=0x16dc6a0, __in_chrg=<value optimized out>) at ../../kdeui/actions/kactionmenu.cpp:77
#20 0x00007fe2965919e9 in KBookmarkActionMenu::~KBookmarkActionMenu (this=0x16dc6a0, __in_chrg=<value optimized out>) at ../../kio/bookmarks/kbookmarkmenu.cc:763
#21 0x00007fe2940adc14 in QObjectPrivate::deleteChildren (this=0x16d3320) at kernel/qobject.cpp:1964
#22 0x00007fe2940b25f4 in QObject::~QObject (this=0x16d32c0, __in_chrg=<value optimized out>) at kernel/qobject.cpp:946
#23 0x00007fe29915ad3e in BookmarkMenu::~BookmarkMenu (this=0x16d32c0, __in_chrg=<value optimized out>) at /build/buildd/rekonq-0.7.0/src/bookmarks/bookmarkstoolbar.cpp:63
#24 0x00007fe29915ada9 in BookmarkMenu::~BookmarkMenu (this=0x16d32c0, __in_chrg=<value optimized out>) at /build/buildd/rekonq-0.7.0/src/bookmarks/bookmarkstoolbar.cpp:66
#25 0x00007fe2940adc14 in QObjectPrivate::deleteChildren (this=0x16d2740) at kernel/qobject.cpp:1964
#26 0x00007fe2945d5ee2 in QWidget::~QWidget (this=0x16d26e0, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:1631
#27 0x00007fe296b83119 in KMenu::~KMenu (this=0x16d26e0, __in_chrg=<value optimized out>) at ../../kdeui/widgets/kmenu.cpp:167
#28 0x00007fe2969e0546 in KActionMenu::~KActionMenu (this=0x16cfbd0, __in_chrg=<value optimized out>) at ../../kdeui/actions/kactionmenu.cpp:77
#29 0x00007fe2965919e9 in KBookmarkActionMenu::~KBookmarkActionMenu (this=0x16cfbd0, __in_chrg=<value optimized out>) at ../../kio/bookmarks/kbookmarkmenu.cc:763
#30 0x00007fe2940adc14 in QObjectPrivate::deleteChildren (this=0x1475540) at kernel/qobject.cpp:1964
#31 0x00007fe2940b25f4 in QObject::~QObject (this=0x1475500, __in_chrg=<value optimized out>) at kernel/qobject.cpp:946
#32 0x00007fe299156cf9 in BookmarkProvider::~BookmarkProvider (this=0x1475500, __in_chrg=<value optimized out>) at /build/buildd/rekonq-0.7.0/src/bookmarks/bookmarkprovider.cpp:99
#33 0x00007fe2940adc14 in QObjectPrivate::deleteChildren (this=0x11b1920) at kernel/qobject.cpp:1964
#34 0x00007fe2940b25f4 in QObject::~QObject (this=0x7fff94894990, __in_chrg=<value optimized out>) at kernel/qobject.cpp:946
#35 0x00007fe294593112 in QApplication::~QApplication (this=0x7fff94894990, __in_chrg=<value optimized out>) at kernel/qapplication.cpp:1080
#36 0x00007fe29910826f in Application::~Application (this=0x7fff94894990, __in_chrg=<value optimized out>) at /build/buildd/rekonq-0.7.0/src/application.cpp:84
#37 0x00007fe29918c900 in kdemain (argc=1, argv=<value optimized out>) at /build/buildd/rekonq-0.7.0/src/main.cpp:213
#38 0x00007fe298d37eff in __libc_start_main (main=0x400730 <main(int, char**)>, argc=1, ubp_av=0x7fff94895318, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff94895308) at libc-start.c:226
#39 0x0000000000400659 in _start ()

This bug may be a duplicate of or related to bug 269490.

Possible duplicates by query: bug 274198, bug 274085, bug 273466, bug 273193, bug 272831.

Reported using DrKonqi