https://bugs.kde.org/show_bug.cgi?id=370959

            Bug ID: 370959
           Summary: Dolphin crashes when trying to extract a rar archive
                    file.
           Product: dolphin
           Version: 16.08.1
          Platform: Mageia RPMs
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-n...@kde.org
          Reporter: cont...@symbioxy.com

Application: dolphin (16.08.1)

Qt Version: 5.6.1
Frameworks Version: 5.27.0
Operating System: Linux 4.6.3-desktop-1.mga6 x86_64
Distribution: "Mageia 6"

-- Information about the crash:
- What I was doing when the application crashed:
1. Open Dolphin
2. Drag and release a rar archve file
3. Selecte "Extract here"
4. Dolphin crashes

- Unusual behavior I noticed:
Using Mageia Cauldron (development version), x64.
When I try and open the RAR file with Ark, I see they is an issue:
1. Open Dolphin
2. Open a RAR archive (with Ark)
3. Ark opens with a warning (translated from fr):
"Ark could not open rar_archive_filename. Impossible to find an external module
to manage the file. Ark does not seem to support this type of files."
When starting Ark from konsole, the message is "ark.kerfuffle: Could not find a
plugin to handle "/home/(...).rar"

Note: checking with the Mageia team if the Ark issue is a
packaging/installation issue. 
In any case, Dolphin should not crash if the issue is the handling of
extraction done by Ark.

The crash can be reproduced every time.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f5e3045a800 (LWP 10506))]

Thread 4 (Thread 0x7f5e23db6700 (LWP 10509)):
#0  0x00007f5e37c43604 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x00007f5e37bfe91d in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f5e37bfeb5c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#3  0x00007f5e3c2033ab in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#4  0x00007f5e3c1aec9a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#5  0x00007f5e3bfe837c in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f5e3bfecfb9 in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#7  0x00007f5e3878e66d in start_thread () at /lib64/libpthread.so.0
#8  0x00007f5e4152cded in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f5e2aaa2700 (LWP 10508)):
#0  0x00007f5e4151c8bd in read () at /lib64/libc.so.6
#1  0x00007f5e37c42320 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#2  0x00007f5e37bfe55e in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007f5e37bfe9f8 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#4  0x00007f5e37bfeb5c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#5  0x00007f5e3c2033ab in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#6  0x00007f5e3c1aec9a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#7  0x00007f5e3bfe837c in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007f5e41c04615 in QDBusConnectionManager::run() () at
/lib64/libQt5DBus.so.5
#9  0x00007f5e3bfecfb9 in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#10 0x00007f5e3878e66d in start_thread () at /lib64/libpthread.so.0
#11 0x00007f5e4152cded in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f5e2c29d700 (LWP 10507)):
#0  0x00007f5e41520f9d in poll () at /lib64/libc.so.6
#1  0x00007f5e35d93902 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007f5e35d95657 in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f5e2e7d32b9 in QXcbEventReader::run() () at /lib64/libQt5XcbQpa.so.5
#4  0x00007f5e3bfecfb9 in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#5  0x00007f5e3878e66d in start_thread () at /lib64/libpthread.so.0
#6  0x00007f5e4152cded in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f5e3045a800 (LWP 10506)):
[KCrash Handler]
#6  0x00007f5e2253def4 in BatchExtract::slotStartJob() () at
/usr/lib64/qt5/plugins/kf5/kio_dnd/extracthere.so
#7  0x00007f5e3c1e7c76 in QSingleShotTimer::timerEvent(QTimerEvent*) () at
/lib64/libQt5Core.so.5
#8  0x00007f5e3c1dcb8b in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#9  0x00007f5e3cb1690c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /lib64/libQt5Widgets.so.5
#10 0x00007f5e3cb1ba76 in QApplication::notify(QObject*, QEvent*) () at
/lib64/libQt5Widgets.so.5
#11 0x00007f5e3c1b0e18 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /lib64/libQt5Core.so.5
#12 0x00007f5e3c2022de in QTimerInfoList::activateTimers() () at
/lib64/libQt5Core.so.5
#13 0x00007f5e3c202821 in timerSourceDispatch(_GSource*, int (*)(void*), void*)
() at /lib64/libQt5Core.so.5
#14 0x00007f5e37bfe887 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#15 0x00007f5e37bfeab8 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#16 0x00007f5e37bfeb5c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#17 0x00007f5e3c203386 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#18 0x00007f5e3c1aec9a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#19 0x00007f5e3c1b7001 in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#20 0x00007f5e41849b66 in kdemain () at /lib64/libkdeinit5_dolphin.so
#21 0x00007f5e41457600 in __libc_start_main () at /lib64/libc.so.6
#22 0x0000000000400719 in _start ()

Reported using DrKonqi

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