Bug 353397

Application: rekonq (2.4.2)
KDE Platform Version: 4.14.2
Qt Version: 4.8.6
Operating System: Linux 3.13.0-65-generic x86_64
Distribution: Ubuntu 14.04.3 LTS

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

Visiting this website (Resaerchgate) causes rekonq to crash:
https://www.researchgate.net/publication/282038796_COSMOS-improving_the_quality_of_life_in_nursing_home_patients_protocol_for_an_effectiveness-implementation_cluster_randomized_clinical_hybrid_trial?pli=1&loginT=3ymhb5wICwDAxikmN_9d9WAergwXn-p0mD6PIvX-KF0&uid=d0b00fbd-d943-4842-9078-78ede93e897e&cp=re243_b_v2_b1_p1020&ch=reg

Usually, there are no problems to surf on ResearchGate.

The crash can be reproduced every time.

-- 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 0x7f2150a6c7c0 (LWP 5902))]

Thread 9 (Thread 0x7f2138962700 (LWP 5903)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f214f68481d in WTF::TCMalloc_PageHeap::scavengerThread() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f214f684859 in WTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f2146ca8182 in start_thread (arg=0x7f2138962700) at pthread_create.c:312
#4  0x00007f215027047d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 8 (Thread 0x7f20f502a700 (LWP 5905)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f214f3c520d in JSC::BlockAllocator::blockFreeingThreadMain() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f214f6b3fd6 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f2146ca8182 in start_thread (arg=0x7f20f502a700) at pthread_create.c:312
#4  0x00007f215027047d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 7 (Thread 0x7f20effff700 (LWP 5906)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f214eb6f17b in WebCore::IconDatabase::syncThreadMainLoop() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f214eb6f364 in WebCore::IconDatabase::iconDatabaseSyncThread() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f214f6b3fd6 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#4  0x00007f2146ca8182 in start_thread (arg=0x7f20effff700) at pthread_create.c:312
#5  0x00007f215027047d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 6 (Thread 0x7f20eed92700 (LWP 5907)):
#0  0x00007f21479a161a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f21479a19a9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f214795f680 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f214795ff03 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f21479600ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f214a2847be in QEventDispatcherGlib::processEvents (this=0x7f20dc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007f214a2560af in QEventLoop::processEvents (this=this@entry=0x7f20eed91e20, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f214a2563a5 in QEventLoop::exec (this=this@entry=0x7f20eed91e20, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f214a152c5f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:537
#9  0x00007f214a15532f in QThreadPrivate::start (arg=0x91c2a0) at thread/qthread_unix.cpp:349
#10 0x00007f2146ca8182 in start_thread (arg=0x7f20eed92700) at pthread_create.c:312
#11 0x00007f215027047d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7f20ed344700 (LWP 5908)):
#0  0x00007f21479a161a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f21479a1979 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f214795f557 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f214795ff03 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f21479600ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f214a2847be in QEventDispatcherGlib::processEvents (this=0x7f20e00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007f214a2560af in QEventLoop::processEvents (this=this@entry=0x7f20ed343de0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f214a2563a5 in QEventLoop::exec (this=this@entry=0x7f20ed343de0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f214a152c5f in QThread::exec (this=this@entry=0xcdcb40) at thread/qthread.cpp:537
#9  0x00007f214a237823 in QInotifyFileSystemWatcherEngine::run (this=0xcdcb40) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007f214a15532f in QThreadPrivate::start (arg=0xcdcb40) at thread/qthread_unix.cpp:349
#11 0x00007f2146ca8182 in start_thread (arg=0x7f20ed344700) at pthread_create.c:312
#12 0x00007f215027047d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7f20d1cb4700 (LWP 5912)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f214f6b45d3 in WTF::ThreadCondition::timedWait(WTF::Mutex&, double) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f214e58a82d in WebCore::FileThread::runLoop() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f214f6b3fd6 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#4  0x00007f2146ca8182 in start_thread (arg=0x7f20d1cb4700) at pthread_create.c:312
#5  0x00007f215027047d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f20c7a3b700 (LWP 5915)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f214f6b45d3 in WTF::ThreadCondition::timedWait(WTF::Mutex&, double) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f214eb83fe7 in WebCore::WorkerRunLoop::runInMode(WebCore::WorkerContext*, WebCore::ModePredicate const&, WebCore::WorkerRunLoop::WaitMode) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f214eb84260 in WebCore::WorkerRunLoop::run(WebCore::WorkerContext*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#4  0x00007f214eb85eca in WebCore::WorkerThread::workerThread() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#5  0x00007f214f6b3fd6 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#6  0x00007f2146ca8182 in start_thread (arg=0x7f20c7a3b700) at pthread_create.c:312
#7  0x00007f215027047d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f20c723a700 (LWP 5916)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f214f3c520d in JSC::BlockAllocator::blockFreeingThreadMain() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f214f6b3fd6 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f2146ca8182 in start_thread (arg=0x7f20c723a700) at pthread_create.c:312
#4  0x00007f215027047d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f2150a6c7c0 (LWP 5902)):
[KCrash Handler]
#6  0x00007f20f406e180 in ?? ()
#7  0x00007f214e31b692 in WebCore::CSSFontSelector::dispatchInvalidationCallbacks() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#8  0x00007f214e76f699 in WebCore::CachedFont::checkNotify() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#9  0x00007f214e7dca8a in WebCore::SubresourceLoader::didFinishLoading(double) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#10 0x00007f214eb0f772 in WebCore::QNetworkReplyHandler::finish() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#11 0x00007f214eb0f2cf in WebCore::QNetworkReplyHandlerCallQueue::flush() [clone .part.56] () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#12 0x00007f214eb0f31b in WebCore::QNetworkReplyHandlerCallQueue::push(void (WebCore::QNetworkReplyHandler::*)()) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#13 0x00007f214eb0f37b in WebCore::QNetworkReplyWrapper::didReceiveFinished() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#14 0x00007f214a26b87a in QMetaObject::activate (sender=0xbd9c80, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#15 0x00007f214a25f908 in QMetaMethod::invoke (this=this@entry=0x7ffc36edddc0, object=object@entry=0xbd9c80, connectionType=Qt::DirectConnection, connectionType@entry=Qt::AutoConnection, returnValue=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1664
#16 0x00007f214a261dc2 in QMetaObject::invokeMethod (obj=obj@entry=0xbd9c80, member=member@entry=0x7f214d2ef425 "finished", type=type@entry=Qt::AutoConnection, ret=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1179
#17 0x00007f214d18c9ac in invokeMethod (val9=..., val8=..., val7=..., val6=..., val5=..., val4=..., val3=..., val2=..., val1=..., val0=..., type=Qt::AutoConnection, member=0x7f214d2ef425 "finished", obj=0xbd9c80) at /usr/include/qt4/QtCore/qobjectdefs.h:418
#18 KDEPrivate::AccessManagerReply::emitFinished (this=this@entry=0xbd9c80, state=state@entry=true, type=type@entry=Qt::AutoConnection) at ../../kio/kio/accessmanagerreply_p.cpp:485
#19 0x00007f214d18e630 in KDEPrivate::AccessManagerReply::slotResult (this=0xbd9c80, kJob=0xf77fe0) at ../../kio/kio/accessmanagerreply_p.cpp:427
#20 0x00007f214a26b87a in QMetaObject::activate (sender=sender@entry=0xf77fe0, m=m@entry=0x7f214acec600 <KJob::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffc36ede2b0) at kernel/qobject.cpp:3539
#21 0x00007f214a95c912 in KJob::result (this=this@entry=0xf77fe0, _t1=_t1@entry=0xf77fe0) at ./kjob.moc:207
#22 0x00007f214a95c950 in KJob::emitResult (this=this@entry=0xf77fe0) at ../../kdecore/jobs/kjob.cpp:318
#23 0x00007f214d1c896a in KIO::SimpleJob::slotFinished (this=this@entry=0xf77fe0) at ../../kio/kio/job.cpp:496
#24 0x00007f214d1c9abe in KIO::TransferJob::slotFinished (this=0xf77fe0) at ../../kio/kio/job.cpp:1110
#25 0x00007f214a26b87a in QMetaObject::activate (sender=sender@entry=0xf57860, m=m@entry=0x7f214d56abe0 <KIO::SlaveInterface::staticMetaObject>, local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#26 0x00007f214d266a43 in KIO::SlaveInterface::finished (this=this@entry=0xf57860) at ./slaveinterface.moc:184
#27 0x00007f214d1a7158 in KIO::DataSlave::dispatchNext (this=0xf57860) at ../../kio/kio/dataslave.cpp:114
#28 0x00007f214a26b87a in QMetaObject::activate (sender=0xefeea0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#29 0x00007f214a26fa31 in QObject::event (this=0xefeea0, e=<optimized out>) at kernel/qobject.cpp:1156
#30 0x00007f214aec4e2c in QApplicationPrivate::notify_helper (this=this@entry=0x7791a0, receiver=receiver@entry=0xefeea0, e=e@entry=0x7ffc36edea90) at kernel/qapplication.cpp:4567
#31 0x00007f214aecb4a0 in QApplication::notify (this=this@entry=0x7ffc36edee30, receiver=receiver@entry=0xefeea0, e=e@entry=0x7ffc36edea90) at kernel/qapplication.cpp:4353
#32 0x00007f214d79acca in KApplication::notify (this=0x7ffc36edee30, receiver=0xefeea0, event=0x7ffc36edea90) at ../../kdeui/kernel/kapplication.cpp:311
#33 0x00007f214a2574dd in QCoreApplication::notifyInternal (this=0x7ffc36edee30, receiver=0xefeea0, event=0x7ffc36edea90) at kernel/qcoreapplication.cpp:953
#34 0x00007f214a287323 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#35 QTimerInfoList::activateTimers (this=0x775590) at kernel/qeventdispatcher_unix.cpp:621
#36 0x00007f214a2845f1 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:193
#37 0x00007f214795fe04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007f2147960048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007f21479600ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#40 0x00007f214a2847a1 in QEventDispatcherGlib::processEvents (this=0x73f8b0, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#41 0x00007f214af66be6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#42 0x00007f214a2560af in QEventLoop::processEvents (this=this@entry=0x7ffc36eded00, flags=...) at kernel/qeventloop.cpp:149
#43 0x00007f214a2563a5 in QEventLoop::exec (this=this@entry=0x7ffc36eded00, flags=...) at kernel/qeventloop.cpp:204
#44 0x00007f214a25bb79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#45 0x00007f214aec337c in QApplication::exec () at kernel/qapplication.cpp:3828
#46 0x00007f2150656155 in kdemain (argc=1, argv=0x7ffc36edef88) at /build/buildd/rekonq-2.4.2/src/main.cpp:242
#47 0x00007f2150197ec5 in __libc_start_main (main=0x4006d0 <main(int, char**)>, argc=1, argv=0x7ffc36edef88, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc36edef78) at libc-start.c:287
#48 0x00000000004006fe in _start ()

Reported using DrKonqi