Bug 395256

Application: rekonq (2.4.2)
KDE Platform Version: 4.14.16
Qt Version: 4.8.7
Operating System: Linux 4.4.0-119-generic x86_64
Distribution: Ubuntu 16.04.4 LTS

-- Information about the crash:
- What I was doing when the application crashed:
- opened rekonq
- manually tped in "web.de" (a german mail service provider)
- selected "freemail" on the opening screen
- typed in username and password
- confirmed by pressing ENTER
- rekonq crashes

-repeated all steps 3 times, every time it ended up in a crash of rekonq

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 0x7f773e359940 (LWP 3310))]

Thread 6 (Thread 0x7f76d5741700 (LWP 3316)):
#0  0x00007f773dbfc74d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f77354fd38c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f76c8003030, timeout=<optimized out>, context=0x7f76c80009c0) at /build/glib2.0-prJhLS/glib2.0-2.48.2/./glib/gmain.c:4135
#2  0x00007f77354fd38c in g_main_context_iterate (context=context@entry=0x7f76c80009c0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-prJhLS/glib2.0-2.48.2/./glib/gmain.c:3835
#3  0x00007f77354fd49c in g_main_context_iteration (context=0x7f76c80009c0, may_block=may_block@entry=1) at /build/glib2.0-prJhLS/glib2.0-2.48.2/./glib/gmain.c:3901
#4  0x00007f7737fab2ce in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f76c80008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#5  0x00007f7737f7918f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f76d5740c40, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f7737f794f5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f76d5740c40, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f7737e68549 in QThread::exec() (this=this@entry=0xc0b4f0) at thread/qthread.cpp:538
#8  0x00007f7737f59223 in QInotifyFileSystemWatcherEngine::run() (this=0xc0b4f0) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x00007f7737e6ae3c in QThreadPrivate::start(void*) (arg=0xc0b4f0) at thread/qthread_unix.cpp:352
#10 0x00007f77347416ba in start_thread (arg=0x7f76d5741700) at pthread_create.c:333
#11 0x00007f773dc0841d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f76d7151700 (LWP 3315)):
#0  0x00007f773dbfc74d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f77354fd38c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f76c4003040, timeout=<optimized out>, context=0x7f76c40009c0) at /build/glib2.0-prJhLS/glib2.0-2.48.2/./glib/gmain.c:4135
#2  0x00007f77354fd38c in g_main_context_iterate (context=context@entry=0x7f76c40009c0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-prJhLS/glib2.0-2.48.2/./glib/gmain.c:3835
#3  0x00007f77354fd49c in g_main_context_iteration (context=0x7f76c40009c0, may_block=may_block@entry=1) at /build/glib2.0-prJhLS/glib2.0-2.48.2/./glib/gmain.c:3901
#4  0x00007f7737fab2ce in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f76c40008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#5  0x00007f7737f7918f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f76d7150c90, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f7737f794f5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f76d7150c90, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f7737e68549 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:538
#8  0x00007f7737e6ae3c in QThreadPrivate::start(void*) (arg=0x95e620) at thread/qthread_unix.cpp:352
#9  0x00007f77347416ba in start_thread (arg=0x7f76d7151700) at pthread_create.c:333
#10 0x00007f773dc0841d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f76d7952700 (LWP 3314)):
#0  0x00007f7734747360 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f773c4710a4 in  () at /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f773c4712e9 in  () at /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f773d08a876 in  () at /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#4  0x00007f77347416ba in start_thread (arg=0x7f76d7952700) at pthread_create.c:333
#5  0x00007f773dc0841d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f771d396700 (LWP 3313)):
#0  0x00007f7734747360 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f773cd7a6c1 in  () at /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f773d08a876 in  () at /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f77347416ba in start_thread (arg=0x7f771d396700) at pthread_create.c:333
#4  0x00007f773dc0841d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f772512f700 (LWP 3311)):
#0  0x00007f7734747360 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f773d0582dd in  () at /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f773d058339 in  () at /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f77347416ba in start_thread (arg=0x7f772512f700) at pthread_create.c:333
#4  0x00007f773dc0841d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f773e359940 (LWP 3310)):
[KCrash Handler]
#6  0x00007f773c305a06 in  () at /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#7  0x00007f773b9fbd31 in  () at /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#8  0x00007f773b9fc3e0 in QWebFrame::hitTestContent(QPoint const&) const () at /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#9  0x00007f773dfc50e8 in WebView::guessHoveredLink(QPoint) () at /usr/lib/kde4/libkdeinit/libkdeinit4_rekonq.so
#10 0x00007f773dfc8d19 in WebView::mouseMoveEvent(QMouseEvent*) () at /usr/lib/kde4/libkdeinit/libkdeinit4_rekonq.so
#11 0x00007f7738c648d0 in QWidget::event(QEvent*) (this=0x95e660, event=0x7ffdfc6325e0) at kernel/qwidget.cpp:8775
#12 0x00007f773ba13837 in QWebView::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#13 0x00007f7738c0dfdc in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x6eff60, receiver=receiver@entry=0x95e660, e=e@entry=0x7ffdfc6325e0) at kernel/qapplication.cpp:4570
#14 0x00007f7738c150d6 in QApplication::notify(QObject*, QEvent*) (this=this@entry=0x7ffdfc632e30, receiver=receiver@entry=0x95e660, e=e@entry=0x7ffdfc6325e0) at kernel/qapplication.cpp:4113
#15 0x00007f773afa564a in KApplication::notify(QObject*, QEvent*) (this=0x7ffdfc632e30, receiver=0x95e660, event=0x7ffdfc6325e0) at /build/kde4libs-_S4zyz/kde4libs-4.14.16/kdeui/kernel/kapplication.cpp:311
#16 0x00007f7737f7a90d in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7ffdfc632e30, receiver=receiver@entry=0x95e660, event=event@entry=0x7ffdfc6325e0) at kernel/qcoreapplication.cpp:955
#17 0x00007f7738c146dd in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#18 0x00007f7738c146dd in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) (receiver=receiver@entry=0x95e660, event=event@entry=0x7ffdfc6325e0, alienWidget=alienWidget@entry=0x95e660, nativeWidget=nativeWidget@entry=0x951670, buttonDown=buttonDown@entry=0x7f7739739368 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3178
#19 0x00007f7738c923f2 in QETWidget::translateMouseEvent(_XEvent const*) (this=this@entry=0x951670, event=event@entry=0x7ffdfc632940) at kernel/qapplication_x11.cpp:4638
#20 0x00007f7738c91c83 in QApplication::x11ProcessEvent(_XEvent*) (this=0x7ffdfc632e30, event=event@entry=0x7ffdfc632940) at kernel/qapplication_x11.cpp:3626
#21 0x00007f7738cbb542 in x11EventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x700d40, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#22 0x00007f77354fd197 in g_main_context_dispatch (context=0x6f03f0) at /build/glib2.0-prJhLS/glib2.0-2.48.2/./glib/gmain.c:3154
#23 0x00007f77354fd197 in g_main_context_dispatch (context=context@entry=0x6f03f0) at /build/glib2.0-prJhLS/glib2.0-2.48.2/./glib/gmain.c:3769
#24 0x00007f77354fd3f0 in g_main_context_iterate (context=context@entry=0x6f03f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-prJhLS/glib2.0-2.48.2/./glib/gmain.c:3840
#25 0x00007f77354fd49c in g_main_context_iteration (context=0x6f03f0, may_block=may_block@entry=1) at /build/glib2.0-prJhLS/glib2.0-2.48.2/./glib/gmain.c:3901
#26 0x00007f7737fab2ae in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x6b7270, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#27 0x00007f7738cbb616 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#28 0x00007f7737f7918f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffdfc632d20, flags=...) at kernel/qeventloop.cpp:149
#29 0x00007f7737f794f5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffdfc632d20, flags=...) at kernel/qeventloop.cpp:204
#30 0x00007f7737f7f4b9 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1227
#31 0x00007f773dfe8b1d in kdemain () at /usr/lib/kde4/libkdeinit/libkdeinit4_rekonq.so
#32 0x00007f773db21830 in __libc_start_main (main=0x4006d0, argc=1, argv=0x7ffdfc632f88, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffdfc632f78) at ../csu/libc-start.c:291
#33 0x00000000004006fe in _start ()

Reported using DrKonqi