Application: konqueror (4.14.13)
KDE Platform Version: 4.14.21
Qt Version: 4.8.7
Operating System: Linux 4.8.17 x86_64
Distribution (Platform): Slackware Packages

-- Information about the crash:
Slackware64 14.2
Kernel: 4.8.17
Kde: 4.14.21
Konqueror: Version 4.14.13


I have 2 tabs open in same window. Konqueror crashes every time i tries to close any of them or the window.
First tab: ftp://ftp.gwdg.de/pub/misc/gcc/releases/gcc-6.3.0/gcc-6.3.0.tar.bz2
and second: ftp://ftp.mirrorservice.org/sites/sourceware.org/pub/gcc/releases/gcc-6.3.0/gcc-6.3.0.tar.bz2

The crash can be reproduced every time.

-- Backtrace:
Application: Konqueror (konqueror), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f7a974fa780 (LWP 744))]

Thread 5 (Thread 0x7f7a1e873700 (LWP 14822)):
#0  0x00007f7a95afe53d in read () at /lib64/libpthread.so.0
#1  0x00007f7a9079b5d0 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f7a90759484 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f7a907598f8 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f7a90759a5c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f7a95eca0ce in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#6  0x00007f7a95e9a5d1 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#7  0x00007f7a95e9a8e5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#8  0x00007f7a95d93c39 in QThread::exec() () at /usr/lib64/qt/lib/libQtCore.so.4
#9  0x00007f7a8c7bb84e in  () at /usr/lib64/libkio.so.5
#10 0x00007f7a95d963bc in  () at /usr/lib64/qt/lib/libQtCore.so.4
#11 0x00007f7a95af5684 in start_thread () at /lib64/libpthread.so.0
#12 0x00007f7a9403cefd in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f7a314fc700 (LWP 755)):
#0  0x00007f7a95afb36f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f7a892b1441 in  () at /usr/lib64/qt/lib/libQtWebKit.so.4
#2  0x00007f7a895b3216 in  () at /usr/lib64/qt/lib/libQtWebKit.so.4
#3  0x00007f7a95af5684 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f7a9403cefd in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f7a32fe5700 (LWP 746)):
#0  0x00007f7a9403130d in poll () at /lib64/libc.so.6
#1  0x00007f7a90759954 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f7a90759a5c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f7a95eca0ce in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#4  0x00007f7a95e9a5d1 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#5  0x00007f7a95e9a8e5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#6  0x00007f7a95d93c39 in QThread::exec() () at /usr/lib64/qt/lib/libQtCore.so.4
#7  0x00007f7a95d963bc in  () at /usr/lib64/qt/lib/libQtCore.so.4
#8  0x00007f7a95af5684 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f7a9403cefd in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f7a772e2700 (LWP 745)):
#0  0x00007f7a95afb36f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f7a89581d9d in  () at /usr/lib64/qt/lib/libQtWebKit.so.4
#2  0x00007f7a89581df9 in  () at /usr/lib64/qt/lib/libQtWebKit.so.4
#3  0x00007f7a95af5684 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f7a9403cefd in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f7a974fa780 (LWP 744)):
[KCrash Handler]
#6  0x00007f7a96ffd3e0 in KXMLGUIFactory::removeClient(KXMLGUIClient*) () at /usr/lib64/libkdeui.so.5
#7  0x00007f7a338409a4 in  () at /usr/lib64/kde4/arkpart.so
#8  0x00007f7a33840a29 in  () at /usr/lib64/kde4/arkpart.so
#9  0x00007f7a7ecd8642 in  () at /usr/lib64/libkdeinit4_konqueror.so
#10 0x00007f7a7ecd8929 in  () at /usr/lib64/libkdeinit4_konqueror.so
#11 0x00007f7a7ece4255 in  () at /usr/lib64/libkdeinit4_konqueror.so
#12 0x00007f7a7ece4353 in  () at /usr/lib64/libkdeinit4_konqueror.so
#13 0x00007f7a7ece43b9 in  () at /usr/lib64/libkdeinit4_konqueror.so
#14 0x00007f7a7ed165b6 in  () at /usr/lib64/libkdeinit4_konqueror.so
#15 0x00007f7a7ed168f9 in  () at /usr/lib64/libkdeinit4_konqueror.so
#16 0x00007f7a95eb4958 in QObject::event(QEvent*) () at /usr/lib64/qt/lib/libQtCore.so.4
#17 0x00007f7a95044c0c in QWidget::event(QEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#18 0x00007f7a954056f3 in QMainWindow::event(QEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#19 0x00007f7a96ff3949 in KXmlGuiWindow::event(QEvent*) () at /usr/lib64/libkdeui.so.5
#20 0x00007f7a7ed29d8c in  () at /usr/lib64/libkdeinit4_konqueror.so
#21 0x00007f7a94ff148c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#22 0x00007f7a94ff7f5c in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#23 0x00007f7a96efc8ea in KApplication::notify(QObject*, QEvent*) () at /usr/lib64/libkdeui.so.5
#24 0x00007f7a95e9bc0d in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/qt/lib/libQtCore.so.4
#25 0x00007f7a95e9ee6e in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/qt/lib/libQtCore.so.4
#26 0x00007f7a95ec9f3e in  () at /usr/lib64/qt/lib/libQtCore.so.4
#27 0x00007f7a90759787 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#28 0x00007f7a907599b8 in  () at /usr/lib64/libglib-2.0.so.0
#29 0x00007f7a90759a5c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#30 0x00007f7a95eca0ae in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#31 0x00007f7a950949e6 in  () at /usr/lib64/qt/lib/libQtGui.so.4
#32 0x00007f7a95e9a5d1 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#33 0x00007f7a95e9a8e5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#34 0x00007f7a95e9fec9 in QCoreApplication::exec() () at /usr/lib64/qt/lib/libQtCore.so.4
#35 0x00007f7a7ed49ad6 in kdemain () at /usr/lib64/libkdeinit4_konqueror.so
#36 0x0000000000408c21 in  ()
#37 0x00000000004099f7 in  ()
#38 0x000000000040a13a in  ()
#39 0x0000000000405952 in  ()
#40 0x00007f7a93f567d0 in __libc_start_main () at /lib64/libc.so.6
#41 0x00000000004067b9 in _start ()

Reported using DrKonqi