Bug 358095

Summary: Rekonq crashes while loading several websites
Product: [Unmaintained] rekonq Reporter: Michael Brach <michael.brach>
Component: generalAssignee: Andrea Diamantini <adjam7>
Status: RESOLVED UNMAINTAINED    
Severity: crash Keywords: drkonqi
Priority: NOR    
Version First Reported In: 2.4.2   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Michael Brach 2016-01-16 21:26:28 UTC 
Application: rekonq (2.4.2)
KDE Platform Version: 4.14.13
Qt Version: 4.8.6
Operating System: Linux 3.13.0-74-generic x86_64
Distribution: Ubuntu 14.04.3 LTS

-- Information about the crash:
- What I was doing when the application crashed:
I opened several websites with STRG-Klick from a list of google hits.

The crash can be reproduced every time.

-- Backtrace:
Application: Rekonq (rekonq), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fb4c294f7c0 (LWP 10030))]

Thread 21 (Thread 0x7fb4aa842700 (LWP 10031)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb4c156781d in WTF::TCMalloc_PageHeap::scavengerThread() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fb4c1567859 in WTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fb4b8b90182 in start_thread (arg=0x7fb4aa842700) at pthread_create.c:312
#4  0x00007fb4c215347d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 20 (Thread 0x7fb466f02700 (LWP 10033)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb4c12a820d in JSC::BlockAllocator::blockFreeingThreadMain() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fb4c1596fd6 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fb4b8b90182 in start_thread (arg=0x7fb466f02700) at pthread_create.c:312
#4  0x00007fb4c215347d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 19 (Thread 0x7fb465f88700 (LWP 10034)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb4c0a5217b in WebCore::IconDatabase::syncThreadMainLoop() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fb4c0a52364 in WebCore::IconDatabase::iconDatabaseSyncThread() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fb4c1596fd6 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#4  0x00007fb4b8b90182 in start_thread (arg=0x7fb465f88700) at pthread_create.c:312
#5  0x00007fb4c215347d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 18 (Thread 0x7fb464c7e700 (LWP 10035)):
#0  0x00007fb4b8b937ee in __pthread_mutex_unlock_usercnt (decr=1, mutex=0x7fb450000a60) at pthread_mutex_unlock.c:57
#1  __GI___pthread_mutex_unlock (mutex=0x7fb450000a60) at pthread_mutex_unlock.c:310
#2  0x00007fb4b98899b1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb4b98480f6 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb4bc16d7be in QEventDispatcherGlib::processEvents (this=0x7fb4500008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#5  0x00007fb4bc13f0af in QEventLoop::processEvents (this=this@entry=0x7fb464c7de20, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fb4bc13f3a5 in QEventLoop::exec (this=this@entry=0x7fb464c7de20, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fb4bc03bc5f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:537
#8  0x00007fb4bc03e32f in QThreadPrivate::start (arg=0x1f8e630) at thread/qthread_unix.cpp:349
#9  0x00007fb4b8b90182 in start_thread (arg=0x7fb464c7e700) at pthread_create.c:312
#10 0x00007fb4c215347d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 17 (Thread 0x7fb457220700 (LWP 10037)):
#0  0x00007fb4b9847694 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb4b9847f03 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb4b98480ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb4bc16d7be in QEventDispatcherGlib::processEvents (this=0x7fb44c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007fb4bc13f0af in QEventLoop::processEvents (this=this@entry=0x7fb45721fde0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fb4bc13f3a5 in QEventLoop::exec (this=this@entry=0x7fb45721fde0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fb4bc03bc5f in QThread::exec (this=this@entry=0x23b55a0) at thread/qthread.cpp:537
#7  0x00007fb4bc120823 in QInotifyFileSystemWatcherEngine::run (this=0x23b55a0) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007fb4bc03e32f in QThreadPrivate::start (arg=0x23b55a0) at thread/qthread_unix.cpp:349
#9  0x00007fb4b8b90182 in start_thread (arg=0x7fb457220700) at pthread_create.c:312
#10 0x00007fb4c215347d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 16 (Thread 0x7fb455cdb700 (LWP 10042)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007fb4bc03e7f4 in wait (time=30000, this=0x2591750) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=this@entry=0x2767630, mutex=mutex@entry=0x2713568, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fb4bc0320fa in QThreadPoolThread::run (this=0x2767620) at concurrent/qthreadpool.cpp:142
#4  0x00007fb4bc03e32f in QThreadPrivate::start (arg=0x2767620) at thread/qthread_unix.cpp:349
#5  0x00007fb4b8b90182 in start_thread (arg=0x7fb455cdb700) at pthread_create.c:312
#6  0x00007fb4c215347d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 15 (Thread 0x7fb4554b2700 (LWP 10043)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007fb4bc03e7f4 in wait (time=30000, this=0x2710330) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=this@entry=0x2772df0, mutex=mutex@entry=0x2713568, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fb4bc0320fa in QThreadPoolThread::run (this=0x2772de0) at concurrent/qthreadpool.cpp:142
#4  0x00007fb4bc03e32f in QThreadPrivate::start (arg=0x2772de0) at thread/qthread_unix.cpp:349
#5  0x00007fb4b8b90182 in start_thread (arg=0x7fb4554b2700) at pthread_create.c:312
#6  0x00007fb4c215347d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 14 (Thread 0x7fb454a96700 (LWP 10044)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007fb4bc03e7f4 in wait (time=30000, this=0x275a250) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=this@entry=0x25ee6a0, mutex=mutex@entry=0x2713568, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fb4bc0320fa in QThreadPoolThread::run (this=0x25ee690) at concurrent/qthreadpool.cpp:142
#4  0x00007fb4bc03e32f in QThreadPrivate::start (arg=0x25ee690) at thread/qthread_unix.cpp:349
#5  0x00007fb4b8b90182 in start_thread (arg=0x7fb454a96700) at pthread_create.c:312
#6  0x00007fb4c215347d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 13 (Thread 0x7fb4326f0700 (LWP 10059)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007fb4b9889ce5 in g_cond_wait_until () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb4b981e1c1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb4b981e74b in g_async_queue_timeout_pop () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb438f4d027 in ?? () from /usr/lib/mozilla/plugins/libfreshwrapper-flashplayer.so
#5  0x00007fb438f38dcc in ?? () from /usr/lib/mozilla/plugins/libfreshwrapper-flashplayer.so
#6  0x00007fb4b8b90182 in start_thread (arg=0x7fb4326f0700) at pthread_create.c:312
#7  0x00007fb4c215347d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 12 (Thread 0x7fb42b9e2700 (LWP 10060)):
#0  0x00007fb4b8b937ee in __pthread_mutex_unlock_usercnt (decr=1, mutex=0x2ae29e0) at pthread_mutex_unlock.c:57
#1  __GI___pthread_mutex_unlock (mutex=0x2ae29e0) at pthread_mutex_unlock.c:310
#2  0x00007fb4b98899b1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb4b98478f9 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb4b9847f52 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb4b984830a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fb43a6b7336 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#7  0x00007fb4b986cf05 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007fb4b8b90182 in start_thread (arg=0x7fb42b9e2700) at pthread_create.c:312
#9  0x00007fb4c215347d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 11 (Thread 0x7fb42a9e0700 (LWP 10064)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007fb4bc03e7f4 in wait (time=30000, this=0x26142d0) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=this@entry=0x2888f20, mutex=mutex@entry=0x2713568, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fb4bc0320fa in QThreadPoolThread::run (this=0x2888f10) at concurrent/qthreadpool.cpp:142
#4  0x00007fb4bc03e32f in QThreadPrivate::start (arg=0x2888f10) at thread/qthread_unix.cpp:349
#5  0x00007fb4b8b90182 in start_thread (arg=0x7fb42a9e0700) at pthread_create.c:312
#6  0x00007fb4c215347d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 10 (Thread 0x7fb42a1df700 (LWP 10065)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007fb4bc03e7f4 in wait (time=30000, this=0x2680ed0) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=this@entry=0x2a10d90, mutex=mutex@entry=0x2713568, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fb4bc0320fa in QThreadPoolThread::run (this=0x2a10d80) at concurrent/qthreadpool.cpp:142
#4  0x00007fb4bc03e32f in QThreadPrivate::start (arg=0x2a10d80) at thread/qthread_unix.cpp:349
#5  0x00007fb4b8b90182 in start_thread (arg=0x7fb42a1df700) at pthread_create.c:312
#6  0x00007fb4c215347d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 9 (Thread 0x7fb409fca700 (LWP 10076)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb4c15975d3 in WTF::ThreadCondition::timedWait(WTF::Mutex&, double) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fb4c046d82d in WebCore::FileThread::runLoop() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fb4c1596fd6 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#4  0x00007fb4b8b90182 in start_thread (arg=0x7fb409fca700) at pthread_create.c:312
#5  0x00007fb4c215347d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 8 (Thread 0x7fb403fff700 (LWP 10077)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb4c15975d3 in WTF::ThreadCondition::timedWait(WTF::Mutex&, double) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fb4c0a66fe7 in WebCore::WorkerRunLoop::runInMode(WebCore::WorkerContext*, WebCore::ModePredicate const&, WebCore::WorkerRunLoop::WaitMode) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fb4c0a67260 in WebCore::WorkerRunLoop::run(WebCore::WorkerContext*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#4  0x00007fb4c0a68eca in WebCore::WorkerThread::workerThread() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#5  0x00007fb4c1596fd6 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#6  0x00007fb4b8b90182 in start_thread (arg=0x7fb403fff700) at pthread_create.c:312
#7  0x00007fb4c215347d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 7 (Thread 0x7fb4037fe700 (LWP 10078)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb4c12a820d in JSC::BlockAllocator::blockFreeingThreadMain() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fb4c1596fd6 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fb4b8b90182 in start_thread (arg=0x7fb4037fe700) at pthread_create.c:312
#4  0x00007fb4c215347d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 6 (Thread 0x7fb402297700 (LWP 10082)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb441a961ac in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#2  0x00007fb4416d5440 in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#3  0x00007fb441a9640c in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#4  0x00007fb441a9695e in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#5  0x00007fb4b8b90182 in start_thread (arg=0x7fb402297700) at pthread_create.c:312
#6  0x00007fb4c215347d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7fb401a96700 (LWP 10083)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb441a961ac in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#2  0x00007fb4416d5440 in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#3  0x00007fb441a9640c in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#4  0x00007fb441a9695e in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#5  0x00007fb4b8b90182 in start_thread (arg=0x7fb401a96700) at pthread_create.c:312
#6  0x00007fb4c215347d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7fb401295700 (LWP 10084)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb441a961ac in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#2  0x00007fb4416d5440 in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#3  0x00007fb441a9640c in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#4  0x00007fb441a9695e in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#5  0x00007fb4b8b90182 in start_thread (arg=0x7fb401295700) at pthread_create.c:312
#6  0x00007fb4c215347d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7fb400a94700 (LWP 10085)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb441a961ac in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#2  0x00007fb4416d5440 in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#3  0x00007fb441a9640c in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#4  0x00007fb441a9695e in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#5  0x00007fb4b8b90182 in start_thread (arg=0x7fb400a94700) at pthread_create.c:312
#6  0x00007fb4c215347d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7fb3f3d81700 (LWP 10086)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007fb441a96181 in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#2  0x00007fb4419f4f1d in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#3  0x00007fb441a9640c in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#4  0x00007fb441a9695e in ?? () from /usr/lib/flashplugin-installer/libflashplayer.so
#5  0x00007fb4b8b90182 in start_thread (arg=0x7fb3f3d81700) at pthread_create.c:312
#6  0x00007fb4c215347d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7fb4c294f7c0 (LWP 10030)):
[KCrash Handler]
#6  0x00007fb4c208fcc9 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#7  0x00007fb4c20930d8 in __GI_abort () at abort.c:89
#8  0x00007fb4bbd1f535 in __gnu_cxx::__verbose_terminate_handler() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#9  0x00007fb4bbd1d6d6 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#10 0x00007fb4bbd1d703 in std::terminate() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#11 0x00007fb4bbd1e1bf in __cxa_pure_virtual () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#12 0x00007fb4c01fe692 in WebCore::CSSFontSelector::dispatchInvalidationCallbacks() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#13 0x00007fb4c0652699 in WebCore::CachedFont::checkNotify() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#14 0x00007fb4c06bfa8a in WebCore::SubresourceLoader::didFinishLoading(double) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#15 0x00007fb4c09f2772 in WebCore::QNetworkReplyHandler::finish() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#16 0x00007fb4c09f22cf in WebCore::QNetworkReplyHandlerCallQueue::flush() [clone .part.56] () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#17 0x00007fb4c09f231b in WebCore::QNetworkReplyHandlerCallQueue::push(void (WebCore::QNetworkReplyHandler::*)()) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#18 0x00007fb4c09f237b in WebCore::QNetworkReplyWrapper::didReceiveFinished() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#19 0x00007fb4bc15487a in QMetaObject::activate (sender=0x30bc8b0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#20 0x00007fb4bc148908 in QMetaMethod::invoke (this=this@entry=0x7ffe7aa79380, object=object@entry=0x30bc8b0, connectionType=Qt::DirectConnection, connectionType@entry=Qt::AutoConnection, returnValue=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1664
#21 0x00007fb4bc14adc2 in QMetaObject::invokeMethod (obj=obj@entry=0x30bc8b0, member=member@entry=0x7fb4bf1d29c5 "finished", type=type@entry=Qt::AutoConnection, ret=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1179
#22 0x00007fb4bf0709dc in invokeMethod (val9=..., val8=..., val7=..., val6=..., val5=..., val4=..., val3=..., val2=..., val1=..., val0=..., type=Qt::AutoConnection, member=0x7fb4bf1d29c5 "finished", obj=0x30bc8b0) at /usr/include/qt4/QtCore/qobjectdefs.h:418
#23 KDEPrivate::AccessManagerReply::emitFinished (this=this@entry=0x30bc8b0, state=state@entry=true, type=type@entry=Qt::AutoConnection) at ../../kio/kio/accessmanagerreply_p.cpp:485
#24 0x00007fb4bf072660 in KDEPrivate::AccessManagerReply::slotResult (this=0x30bc8b0, kJob=0x30bca60) at ../../kio/kio/accessmanagerreply_p.cpp:427
#25 0x00007fb4bc15487a in QMetaObject::activate (sender=sender@entry=0x30bca60, m=m@entry=0x7fb4bcbd16e0 <KJob::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffe7aa79870) at kernel/qobject.cpp:3539
#26 0x00007fb4bc8453d2 in KJob::result (this=this@entry=0x30bca60, _t1=_t1@entry=0x30bca60) at ./kjob.moc:207
#27 0x00007fb4bc845410 in KJob::emitResult (this=this@entry=0x30bca60) at ../../kdecore/jobs/kjob.cpp:318
#28 0x00007fb4bf0ac4fa in KIO::SimpleJob::slotFinished (this=this@entry=0x30bca60) at ../../kio/kio/job.cpp:496
#29 0x00007fb4bf0ad64e in KIO::TransferJob::slotFinished (this=0x30bca60) at ../../kio/kio/job.cpp:1110
#30 0x00007fb4bc15487a in QMetaObject::activate (sender=sender@entry=0x31225d0, m=m@entry=0x7fb4bf44ebe0 <KIO::SlaveInterface::staticMetaObject>, local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#31 0x00007fb4bf149e23 in KIO::SlaveInterface::finished (this=this@entry=0x31225d0) at ./slaveinterface.moc:184
#32 0x00007fb4bf08ae68 in KIO::DataSlave::dispatchNext (this=0x31225d0) at ../../kio/kio/dataslave.cpp:114
#33 0x00007fb4bc15487a in QMetaObject::activate (sender=0x2ddf590, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#34 0x00007fb4bc158a31 in QObject::event (this=0x2ddf590, e=<optimized out>) at kernel/qobject.cpp:1156
#35 0x00007fb4bcda8e2c in QApplicationPrivate::notify_helper (this=this@entry=0x1d15210, receiver=receiver@entry=0x2ddf590, e=e@entry=0x7ffe7aa7a050) at kernel/qapplication.cpp:4567
#36 0x00007fb4bcdaf4a0 in QApplication::notify (this=this@entry=0x7ffe7aa7a3f0, receiver=receiver@entry=0x2ddf590, e=e@entry=0x7ffe7aa7a050) at kernel/qapplication.cpp:4353
#37 0x00007fb4bf67e80a in KApplication::notify (this=0x7ffe7aa7a3f0, receiver=0x2ddf590, event=0x7ffe7aa7a050) at ../../kdeui/kernel/kapplication.cpp:311
#38 0x00007fb4bc1404dd in QCoreApplication::notifyInternal (this=0x7ffe7aa7a3f0, receiver=0x2ddf590, event=0x7ffe7aa7a050) at kernel/qcoreapplication.cpp:953
#39 0x00007fb4bc170323 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#40 QTimerInfoList::activateTimers (this=0x1d161c0) at kernel/qeventdispatcher_unix.cpp:621
#41 0x00007fb4bc16d5f1 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:193
#42 0x00007fb4b9847e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007fb4b9848048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007fb4b98480ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007fb4bc16d7a1 in QEventDispatcherGlib::processEvents (this=0x1cd68b0, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#46 0x00007fb4bce4abe6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#47 0x00007fb4bc13f0af in QEventLoop::processEvents (this=this@entry=0x7ffe7aa7a2c0, flags=...) at kernel/qeventloop.cpp:149
#48 0x00007fb4bc13f3a5 in QEventLoop::exec (this=this@entry=0x7ffe7aa7a2c0, flags=...) at kernel/qeventloop.cpp:204
#49 0x00007fb4bc144b79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#50 0x00007fb4bcda737c in QApplication::exec () at kernel/qapplication.cpp:3828
#51 0x00007fb4c2539155 in kdemain (argc=1, argv=0x7ffe7aa7a548) at /build/buildd/rekonq-2.4.2/src/main.cpp:242
#52 0x00007fb4c207aec5 in __libc_start_main (main=0x4006d0 <main(int, char**)>, argc=1, argv=0x7ffe7aa7a548, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe7aa7a538) at libc-start.c:287
#53 0x00000000004006fe in _start ()

Reported using DrKonqi
Comment 1 Nate Graham 2018-05-11 16:30:48 UTC 
Development on Rekonq ceased four years ago, and it has been unmaintained since then. KDE recommends using Falkon instead.