Application: rekonq (0.8.0)
KDE Platform Version: 4.7.4 (4.7.4)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-16-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
no ather program was running
just open a new website
or hit the back button

The crash can be reproduced some of the time.

-- Backtrace:
Application: rekonq (rekonq), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f25b3938780 (LWP 2118))]

Thread 12 (Thread 0x7f2594447700 (LWP 2119)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f25b2215c2c in WTF::TCMalloc_PageHeap::scavengerThread (this=0x7f25b2bcc220) at wtf/FastMalloc.cpp:2495
#2  0x00007f25b2215d59 in WTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at wtf/FastMalloc.cpp:1618
#3  0x00007f25ad945efc in start_thread (arg=0x7f2594447700) at pthread_create.c:304
#4  0x00007f25b317489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7f2593b46700 (LWP 2120)):
#0  0x00007f25abd9f370 in g_thread_self () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f25abd77610 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f25abd78d81 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f25abd79429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f25adff9f3e in QEventDispatcherGlib::processEvents (this=0x1df6b30, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f25adfcdcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f25adfcdef7 in QEventLoop::exec (this=0x7f2593b45e00, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007f25adee527f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#8  0x00007f25adee7d05 in QThreadPrivate::start (arg=0x1df6b70) at thread/qthread_unix.cpp:331
#9  0x00007f25ad945efc in start_thread (arg=0x7f2593b46700) at pthread_create.c:304
#10 0x00007f25b317489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7f2592cce700 (LWP 2121)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f25b2d76fe2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f25b2d77019 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f25ad945efc in start_thread (arg=0x7f2592cce700) at pthread_create.c:304
#4  0x00007f25b317489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f25917f4700 (LWP 2122)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f25adee81ab in wait (time=18446744073709551615, this=0x1bf3940) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1be3050, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f25afef9864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1ba9d10, th=0x21ea260) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f25afefbe0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1bf3d00, th=0x21ea260) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f25afefaccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f25917f3e20, parent=0x1ba9d10, th=0x21ea260) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f25afefad5b in ThreadWeaver::Thread::run (this=0x21ea260) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f25adee7d05 in QThreadPrivate::start (arg=0x21ea260) at thread/qthread_unix.cpp:331
#8  0x00007f25ad945efc in start_thread (arg=0x7f25917f4700) at pthread_create.c:304
#9  0x00007f25b317489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f254ad60700 (LWP 2123)):
#0  __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x245e6e8) at pthread_mutex_unlock.c:290
#2  0x00007f25abd77fe4 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f25abd78dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f25abd79429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f25adff9f3e in QEventDispatcherGlib::processEvents (this=0x1e69170, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007f25adfcdcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f25adfcdef7 in QEventLoop::exec (this=0x7f254ad5fdd0, flags=...) at kernel/qeventloop.cpp:201
#8  0x00007f25adee527f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#9  0x00007f25adfb0cbf in QInotifyFileSystemWatcherEngine::run (this=0x245c120) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f25adee7d05 in QThreadPrivate::start (arg=0x245c120) at thread/qthread_unix.cpp:331
#11 0x00007f25ad945efc in start_thread (arg=0x7f254ad60700) at pthread_create.c:304
#12 0x00007f25b317489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f2545c00700 (LWP 2159)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f254827a1f1 in queue_processor(void*) () from /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/IcedTeaPlugin.so
#2  0x00007f25ad945efc in start_thread (arg=0x7f2545c00700) at pthread_create.c:304
#3  0x00007f25b317489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f25453ff700 (LWP 2160)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f254827a1f1 in queue_processor(void*) () from /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/IcedTeaPlugin.so
#2  0x00007f25ad945efc in start_thread (arg=0x7f25453ff700) at pthread_create.c:304
#3  0x00007f25b317489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f2544bfe700 (LWP 2161)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f254827a1f1 in queue_processor(void*) () from /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/IcedTeaPlugin.so
#2  0x00007f25ad945efc in start_thread (arg=0x7f2544bfe700) at pthread_create.c:304
#3  0x00007f25b317489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f253fdf6700 (LWP 2238)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f25430c7ffc in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#2  0x00007f25431e6af0 in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#3  0x00007f25430c825c in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#4  0x00007f25430c86ae in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#5  0x00007f25ad945efc in start_thread (arg=0x7f253fdf6700) at pthread_create.c:304
#6  0x00007f25b317489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f25405f7700 (LWP 2239)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f25430c7ffc in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#2  0x00007f25431e6af0 in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#3  0x00007f25430c825c in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#4  0x00007f25430c86ae in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#5  0x00007f25ad945efc in start_thread (arg=0x7f25405f7700) at pthread_create.c:304
#6  0x00007f25b317489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f253bdaa700 (LWP 2240)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
#1  0x00007f25430c7fd1 in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#2  0x00007f25430e967d in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#3  0x00007f25430c825c in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#4  0x00007f25430c86ae in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#5  0x00007f25ad945efc in start_thread (arg=0x7f253bdaa700) at pthread_create.c:304
#6  0x00007f25b317489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f25b3938780 (LWP 2118)):
[KCrash Handler]
#6  0x00007f25abd940b5 in g_slice_alloc () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f25abd946e6 in g_slice_alloc0 () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f25ac05bef9 in g_type_create_instance () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#9  0x00007f25ac03c5ac in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#10 0x00007f25ac03ee94 in g_object_newv () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#11 0x00007f25ac04008c in g_object_new () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#12 0x00007f2547d8518a in gtk_plug_new_for_display () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#13 0x00007f25430c379a in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#14 0x00007f25430bb14f in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#15 0x00007f25b1f0e74c in WebCore::PluginView::setNPWindowIfNeeded (this=0x7f254855e340) at plugins/qt/PluginViewQt.cpp:701
#16 0x00007f25b1f0f842 in WebCore::PluginView::platformStart (this=0x7f254855e340) at plugins/qt/PluginViewQt.cpp:1008
#17 0x00007f25b1dd52c2 in WebCore::PluginView::start (this=0x7f254855e340) at plugins/PluginView.cpp:268
#18 0x00007f25b1dd55bb in WebCore::PluginView::init (this=0x7f254855e340) at plugins/PluginView.cpp:201
#19 0x00007f25b1dbba3a in WebCore::ScrollView::addChild (this=0x7f2540b8eb80, prpChild=...) at platform/ScrollView.cpp:74
#20 0x00007f25b1ebf5de in WebCore::moveWidgetToParentSoon (child=0x7f254855e340, parent=0x7f2540b8eb80) at rendering/RenderWidget.cpp:90
#21 0x00007f25b1ec0147 in WebCore::RenderWidget::setWidget (this=0x7f253c1a65d8, widget=<optimized out>) at rendering/RenderWidget.cpp:224
#22 0x00007f25b1e86097 in WebCore::RenderPart::setWidget (this=<optimized out>, widget=<optimized out>) at rendering/RenderPart.cpp:51
#23 0x00007f25b1cff831 in WebCore::SubframeLoader::loadPlugin (this=0x7f253c4b0d10, pluginElement=<optimized out>, url=..., mimeType=..., paramNames=..., paramValues=..., useFallback=false) at loader/SubframeLoader.cpp:370
#24 0x00007f25b1d00299 in WebCore::SubframeLoader::requestObject (this=0x7f253c4b0d10, ownerElement=0x610e680, url=<optimized out>, frameName=..., mimeType=..., paramNames=..., paramValues=...) at loader/SubframeLoader.cpp:142
#25 0x00007f25b1bcf515 in WebCore::HTMLEmbedElement::updateWidget (this=0x610e680, pluginCreationOption=<optimized out>) at html/HTMLEmbedElement.cpp:183
#26 0x00007f25b1d4478f in WebCore::FrameView::updateWidget (this=<optimized out>, object=0x7f253c1a65d8) at page/FrameView.cpp:1938
#27 0x00007f25b1d47986 in WebCore::FrameView::updateWidgets (this=0x7f2540b8eb80) at page/FrameView.cpp:1970
#28 0x00007f25b1d47b59 in WebCore::FrameView::performPostLayoutTasks (this=0x7f2540b8eb80) at page/FrameView.cpp:2014
#29 0x00007f25b1dc3b62 in WebCore::ThreadTimers::sharedTimerFiredInternal (this=0x7f2593b807a8) at platform/ThreadTimers.cpp:112
#30 0x00007f25adfe5789 in QObject::event (this=0x21b5fe0, e=<optimized out>) at kernel/qobject.cpp:1181
#31 0x00007f25ae4ff474 in notify_helper (e=0x7fff49c0dfb0, receiver=0x21b5fe0, this=0x1a7c460) at kernel/qapplication.cpp:4486
#32 QApplicationPrivate::notify_helper (this=0x1a7c460, receiver=0x21b5fe0, e=0x7fff49c0dfb0) at kernel/qapplication.cpp:4458
#33 0x00007f25ae5042e1 in QApplication::notify (this=0x7fff49c0e2b0, receiver=0x21b5fe0, e=0x7fff49c0dfb0) at kernel/qapplication.cpp:4365
#34 0x00007f25b0a3b466 in KApplication::notify (this=0x7fff49c0e2b0, receiver=0x21b5fe0, event=0x7fff49c0dfb0) at ../../kdeui/kernel/kapplication.cpp:311
#35 0x00007f25adfceafc in QCoreApplication::notifyInternal (this=0x7fff49c0e2b0, receiver=0x21b5fe0, event=0x7fff49c0dfb0) at kernel/qcoreapplication.cpp:787
#36 0x00007f25adffbd62 in sendEvent (event=0x7fff49c0dfb0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#37 QTimerInfoList::activateTimers (this=0x1a7fec0) at kernel/qeventdispatcher_unix.cpp:603
#38 0x00007f25adff9514 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#39 0x00007f25abd78a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#40 0x00007f25abd79258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#41 0x00007f25abd79429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#42 0x00007f25adff9ed6 in QEventDispatcherGlib::processEvents (this=0x1a4cf40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#43 0x00007f25ae5a710e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#44 0x00007f25adfcdcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#45 0x00007f25adfcdef7 in QEventLoop::exec (this=0x7fff49c0e240, flags=...) at kernel/qeventloop.cpp:201
#46 0x00007f25adfd2789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#47 0x00007f25b3526b97 in kdemain (argc=1, argv=<optimized out>) at /build/buildd/rekonq-0.8.0/src/main.cpp:215
#48 0x00007f25b30b430d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=1, ubp_av=0x7fff49c0ec48, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff49c0ec38) at libc-start.c:226
#49 0x0000000000400661 in _start ()

Possible duplicates by query: bug 295090, bug 294867, bug 294841, bug 294576, bug 294308.

Reported using DrKonqi