Application: rekonq (2.4.2)
KDE Platform Version: 4.13.0
Qt Version: 4.8.6
Operating System: Linux 3.13.0-27-generic i686
Distribution: Ubuntu 14.04 LTS

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

I was browsing in Facebook page. The browser crashed when I made click on a link.

The crash can be reproduced sometimes.

-- 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 0xb239f740 (LWP 23228))]

Thread 11 (Thread 0xaf6e7b40 (LWP 23230)):
#0  0xb77d0424 in __kernel_vsyscall ()
#1  0xb2d97d4b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:187
#2  0xb75ac8ec in __pthread_cond_wait (cond=0xb74a6cb0 <WTF::pageheap_memory+20720>, mutex=0xb74a6c98 <WTF::pageheap_memory+20696>) at forward.c:149
#3  0xb6c2e9ac in WTF::TCMalloc_PageHeap::scavengerThread() () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#4  0xb6c2e9ff in WTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#5  0xb2d93f70 in start_thread (arg=0xaf6e7b40) at pthread_create.c:312
#6  0xb759f70e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 10 (Thread 0xae2ffb40 (LWP 23233)):
#0  0xb77d0424 in __kernel_vsyscall ()
#1  0xb2d97d4b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:187
#2  0xb75ac8ec in __pthread_cond_wait (cond=0xaee337dc, mutex=0xaee337c4) at forward.c:149
#3  0xb6c5d9f3 in WTF::ThreadCondition::wait(WTF::Mutex&) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#4  0xb6939574 in JSC::BlockAllocator::blockFreeingThreadMain() () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#5  0xb6c447c6 in WTF::threadEntryPoint(void*) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#6  0xb6c5d369 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#7  0xb2d93f70 in start_thread (arg=0xae2ffb40) at pthread_create.c:312
#8  0xb759f70e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 9 (Thread 0xad0ffb40 (LWP 23234)):
#0  0xb77d0424 in __kernel_vsyscall ()
#1  0xb2d97d4b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:187
#2  0xb75ac8ec in __pthread_cond_wait (cond=0xaee3bbf0, mutex=0xaee3bbd8) at forward.c:149
#3  0xb6c5d9f3 in WTF::ThreadCondition::wait(WTF::Mutex&) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#4  0xb5fdce64 in WebCore::IconDatabase::syncThreadMainLoop() () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#5  0xb5fdece4 in WebCore::IconDatabase::iconDatabaseSyncThread() () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#6  0xb6c447c6 in WTF::threadEntryPoint(void*) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#7  0xb6c5d369 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#8  0xb2d93f70 in start_thread (arg=0xad0ffb40) at pthread_create.c:312
#9  0xb759f70e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 8 (Thread 0xabf53b40 (LWP 23236)):
#0  0xb2d9712e in __pthread_mutex_unlock_usercnt (mutex=0x8981040, decr=1) at pthread_mutex_unlock.c:57
#1  0xb75acb34 in pthread_mutex_unlock (mutex=0x8981040) at forward.c:194
#2  0xb308a140 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb304499e in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb30452df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb3045528 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb38aa95f in QEventDispatcherGlib::processEvents (this=0x8c16088, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#7  0xb3879823 in QEventLoop::processEvents (this=this@entry=0xabf53288, flags=...) at kernel/qeventloop.cpp:149
#8  0xb3879b49 in QEventLoop::exec (this=this@entry=0xabf53288, flags=...) at kernel/qeventloop.cpp:204
#9  0xb376623d in QThread::exec (this=this@entry=0x8aee358) at thread/qthread.cpp:537
#10 0xb376638b in QThread::run (this=0x8aee358) at thread/qthread.cpp:604
#11 0xb3768b6f in QThreadPrivate::start (arg=0x8aee358) at thread/qthread_unix.cpp:349
#12 0xb2d93f70 in start_thread (arg=0xabf53b40) at pthread_create.c:312
#13 0xb759f70e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 7 (Thread 0xaa94fb40 (LWP 23238)):
#0  0xb77d0424 in __kernel_vsyscall ()
#1  0xb75907ab in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0xb305420b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb30453e8 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb3045528 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb38aa95f in QEventDispatcherGlib::processEvents (this=0xac714890, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0xb3879823 in QEventLoop::processEvents (this=this@entry=0xaa94f258, flags=...) at kernel/qeventloop.cpp:149
#7  0xb3879b49 in QEventLoop::exec (this=this@entry=0xaa94f258, flags=...) at kernel/qeventloop.cpp:204
#8  0xb376623d in QThread::exec (this=this@entry=0x8cb3808) at thread/qthread.cpp:537
#9  0xb3859c44 in QInotifyFileSystemWatcherEngine::run (this=0x8cb3808) at io/qfilesystemwatcher_inotify.cpp:265
#10 0xb3768b6f in QThreadPrivate::start (arg=0x8cb3808) at thread/qthread_unix.cpp:349
#11 0xb2d93f70 in start_thread (arg=0xaa94fb40) at pthread_create.c:312
#12 0xb759f70e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 6 (Thread 0xa4eb0b40 (LWP 23331)):
#0  0xb77d0424 in __kernel_vsyscall ()
#1  0xb2d97d4b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:187
#2  0xb75ac8ec in __pthread_cond_wait (cond=0xa6f94038, mutex=0xa6f94068) at forward.c:149
#3  0xa83945ef in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#4  0xa7f58ca5 in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#5  0xa83948ac in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#6  0xa8394f56 in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#7  0xb2d93f70 in start_thread (arg=0xa4eb0b40) at pthread_create.c:312
#8  0xb759f70e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 5 (Thread 0xa5eb2b40 (LWP 23332)):
#0  0xb77d0424 in __kernel_vsyscall ()
#1  0xb2d97d4b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:187
#2  0xb75ac8ec in __pthread_cond_wait (cond=0xa6f94108, mutex=0xa6f94138) at forward.c:149
#3  0xa83945ef in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#4  0xa7f58ca5 in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#5  0xa83948ac in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#6  0xa8394f56 in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#7  0xb2d93f70 in start_thread (arg=0xa5eb2b40) at pthread_create.c:312
#8  0xb759f70e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 4 (Thread 0xa56b1b40 (LWP 23336)):
#0  0xb3089d2e in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb308a138 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb3044372 in g_main_context_acquire () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb3045288 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb304576b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xa740ee9a in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0xb306b9ca in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb2d93f70 in start_thread (arg=0xa56b1b40) at pthread_create.c:312
#8  0xb759f70e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 3 (Thread 0xa6709b40 (LWP 23337)):
#0  0xb3089d3f in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb308a138 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb3044dbf in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb304537a in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb3045528 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb304557e in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb306b9ca in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb2d93f70 in start_thread (arg=0xa6709b40) at pthread_create.c:312
#8  0xb759f70e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 2 (Thread 0x9c3b4b40 (LWP 23394)):
#0  0xb77d0424 in __kernel_vsyscall ()
#1  0xb2d9812d in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_timedwait.S:245
#2  0xb75ac944 in __pthread_cond_timedwait (cond=0xa7114dd4, mutex=0xa7114e04, abstime=0x9c3b41d4) at forward.c:162
#3  0xa83945c6 in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#4  0xa82d9013 in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#5  0xa83948ac in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#6  0xa8394f56 in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#7  0xb2d93f70 in start_thread (arg=0x9c3b4b40) at pthread_create.c:312
#8  0xb759f70e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 1 (Thread 0xb239f740 (LWP 23228)):
[KCrash Handler]
#7  0xb6996b35 in handleHostCall () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#8  0xb69a0fe4 in operationVirtualCall () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#9  0xada0e1af in ?? ()
#10 0xb6a1bd84 in JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#11 0xb6b2a85c in JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#12 0xb561c46e in WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext*, WebCore::Event*) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#13 0xb5838dae in WebCore::EventTarget::fireEventListeners(WebCore::Event*, WebCore::EventTargetData*, WTF::Vector<WebCore::RegisteredEventListener, 1u>&) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#14 0xb5839024 in WebCore::EventTarget::fireEventListeners(WebCore::Event*) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#15 0xb584d1ef in WebCore::Node::handleLocalEvents(WebCore::Event*) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#16 0xb582e4d9 in WebCore::EventContext::handleLocalEvents(WebCore::Event*) const () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#17 0xb5830e7d in WebCore::EventDispatcher::dispatchEvent(WTF::PassRefPtr<WebCore::Event>) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#18 0xb582e687 in WebCore::EventDispatchMediator::dispatchEvent(WebCore::EventDispatcher*) const () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#19 0xb582e73f in WebCore::FocusEventDispatchMediator::dispatchEvent(WebCore::EventDispatcher*) const () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#20 0xb582ff47 in WebCore::EventDispatcher::dispatchEvent(WebCore::Node*, WTF::PassRefPtr<WebCore::EventDispatchMediator>) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#21 0xb5853065 in WebCore::Node::dispatchFocusEvent(WTF::PassRefPtr<WebCore::Node>) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#22 0xb59f261f in WebCore::HTMLTextFormControlElement::dispatchFocusEvent(WTF::PassRefPtr<WebCore::Node>) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#23 0xb5805a6c in WebCore::Document::setFocusedNode(WTF::PassRefPtr<WebCore::Node>) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#24 0xb5c3e5dd in WebCore::FocusController::setFocusedNode(WebCore::Node*, WTF::PassRefPtr<WebCore::Frame>) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#25 0xb5c32c54 in WebCore::EventHandler::dispatchMouseEvent(WTF::AtomicString const&, WebCore::Node*, bool, int, WebCore::PlatformMouseEvent const&, bool) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#26 0xb5c36a0d in WebCore::EventHandler::handleMousePressEvent(WebCore::PlatformMouseEvent const&) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#27 0xb554db3f in void QWebPagePrivate::mousePressEvent<QMouseEvent>(QMouseEvent*) () at /build/buildd/qtwebkit-source-2.3.2/Source/WTF/wtf/Vector.h:529
#28 0xb555855c in QWebPage::event(QEvent*) () at /build/buildd/qtwebkit-source-2.3.2/Source/WTF/wtf/Vector.h:529
#29 0xb555af7e in QWebView::mousePressEvent(QMouseEvent*) () at /build/buildd/qtwebkit-source-2.3.2/Source/WTF/wtf/Vector.h:529
#30 0xb53a4133 in KWebView::mousePressEvent (this=this@entry=0xe58ad98, event=0xbfdcaf74) at ../../kdewebkit/kwebview.cpp:70
#31 0xb776a633 in WebView::mousePressEvent (this=0xe58ad98, event=0xbfdcaf74) at /build/buildd/rekonq-2.4.2/src/webtab/webview.cpp:688
#32 0xb3eae1e3 in QWidget::event (this=0xe58ad98, event=0xbfdcaf74) at kernel/qwidget.cpp:8372
#33 0xb555c538 in QWebView::event(QEvent*) () at /build/buildd/qtwebkit-source-2.3.2/Source/WTF/wtf/Vector.h:529
#34 0xb3e547f4 in QApplicationPrivate::notify_helper (this=0x897eac8, receiver=receiver@entry=0xe58ad98, e=0xbfdcaf74) at kernel/qapplication.cpp:4567
#35 0xb3e5cea0 in QApplication::notify (this=0xbfdcb520, receiver=receiver@entry=0xe58ad98, e=e@entry=0xbfdcaf74) at kernel/qapplication.cpp:4110
#36 0xb514e0a4 in KApplication::notify (this=0xbfdcb520, receiver=0xe58ad98, event=0xbfdcaf74) at ../../kdeui/kernel/kapplication.cpp:311
#37 0xb387ae4a in QCoreApplication::notifyInternal (this=0xbfdcb520, receiver=receiver@entry=0xe58ad98, event=event@entry=0xbfdcaf74) at kernel/qcoreapplication.cpp:953
#38 0xb3e5ab53 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#39 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0xe58ad98, event=0xbfdcaf74, alienWidget=0xe58ad98, nativeWidget=0x8963228, buttonDown=buttonDown@entry=0xb47cbce4 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#40 0xb3ede778 in QETWidget::translateMouseEvent (this=0x8963228, event=event@entry=0xbfdcb19c) at kernel/qapplication_x11.cpp:4634
#41 0xb3eddec5 in QApplication::x11ProcessEvent (this=0xbfdcb520, event=event@entry=0xbfdcb19c) at kernel/qapplication_x11.cpp:3627
#42 0xb3f09524 in x11EventSourceDispatch (s=0x8980600, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#43 0xb30451e3 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#44 0xb3045468 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#45 0xb3045528 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#46 0xb38aa93b in QEventDispatcherGlib::processEvents (this=this@entry=0x8940f18, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#47 0xb3f095de in QGuiEventDispatcherGlib::processEvents (this=0x8940f18, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#48 0xb3879823 in QEventLoop::processEvents (this=this@entry=0xbfdcb458, flags=...) at kernel/qeventloop.cpp:149
#49 0xb3879b49 in QEventLoop::exec (this=this@entry=0xbfdcb458, flags=...) at kernel/qeventloop.cpp:204
#50 0xb387f8fe in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#51 0xb3e52a24 in QApplication::exec () at kernel/qapplication.cpp:3828
#52 0xb778fa98 in kdemain (argc=1, argv=0xbfdcb614) at /build/buildd/rekonq-2.4.2/src/main.cpp:242
#53 0x0804854b in main (argc=1, argv=0xbfdcb614) at /build/buildd/rekonq-2.4.2/obj-i686-linux-gnu/src/rekonq_dummy.cpp:3

Possible duplicates by query: bug 329601.

Reported using DrKonqi