Bug 373298

Application: plasmashell (5.8.4)

Qt Version: 5.7.0
Frameworks Version: 5.28.0
Operating System: Linux 4.8.11-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:
I tried to add widget called "comic strip". While configuring it I clicked 'get new comics' and then all I could see was my mouse cursor with black screen.

- Unusual behavior I noticed:
"Get new comics" is doing something wrong.

- Custom settings of the application:
I did not change any settings in "comic strip" other than clicking on "get new comics"

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f5509e02800 (LWP 5455))]

Thread 8 (Thread 0x7f543a3c2700 (LWP 5571)):
#0  0x00007f550350348d in poll () at /usr/lib/libc.so.6
#1  0x00007f54fe7c7786 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f54fe7c789c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f5503e2572b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f5503dcf23a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f5503bf20f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f5506f552d5 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f5503bf6d78 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f5502d06454 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f550350c7df in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f5451651700 (LWP 5524)):
#0  0x00007f54fe80cdb9 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f54fe7c7184 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007f54fe7c7724 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f54fe7c789c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f5503e2572b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f5503dcf23a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f5503bf20f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f5507af1856 in  () at /usr/lib/libQt5Quick.so.5
#8  0x00007f5503bf6d78 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f5502d06454 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f550350c7df in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f54dfbef700 (LWP 5523)):
#0  0x00007f5502d0c10f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f550958dac4 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007f550958db09 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007f5502d06454 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f550350c7df in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f54ea192700 (LWP 5509)):
#0  0x00007f54fe80cdd4 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f54fe7c6c7c in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x00007f54fe7c76ab in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f54fe7c789c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f5503e2572b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f5503dcf23a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f5503bf20f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f5506f552d5 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007f5503bf6d78 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f5502d06454 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f550350c7df in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f54ebbf2700 (LWP 5503)):
#0  0x00007f550350348d in poll () at /usr/lib/libc.so.6
#1  0x00007f54fe7c7786 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f54fe7c789c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f5503e2572b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f5503dcf23a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f5503bf20f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f5506f552d5 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f5503bf6d78 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f5502d06454 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f550350c7df in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f54f1739700 (LWP 5473)):
#0  0x00007f54fe80cdb9 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f54fe7c6c95 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x00007f54fe7c76ab in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f54fe7c789c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f5503e2572b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f5503dcf23a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f5503bf20f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f5504972e55 in  () at /usr/lib/libQt5DBus.so.5
#8  0x00007f5503bf6d78 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f5502d06454 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f550350c7df in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f54f336a700 (LWP 5467)):
#0  0x00007f550350348d in poll () at /usr/lib/libc.so.6
#1  0x00007f55084c28e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007f55084c4679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f54f50a7449 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f5503bf6d78 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f5502d06454 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f550350c7df in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f5509e02800 (LWP 5455)):
[KCrash Handler]
#6  0x00007f5504d7f88e in QWidget::show() () at /usr/lib/libQt5Widgets.so.5
#7  0x00007f54e8602947 in  () at /usr/lib/qt/plugins/plasma/applets/plasma_applet_comic.so
#8  0x00007f54e861d7e5 in  () at /usr/lib/qt/plugins/plasma/applets/plasma_applet_comic.so
#9  0x00007f54e861e3c8 in  () at /usr/lib/qt/plugins/plasma/applets/plasma_applet_comic.so
#10 0x00007f5506f0da99 in  () at /usr/lib/libQt5Qml.so.5
#11 0x00007f5506e9b36e in  () at /usr/lib/libQt5Qml.so.5
#12 0x00007f5506e9c5f9 in  () at /usr/lib/libQt5Qml.so.5
#13 0x00007f5506e9d34d in QV4::QObjectMethod::callInternal(QV4::CallData*) const () at /usr/lib/libQt5Qml.so.5
#14 0x00007f5506eb2730 in QV4::Runtime::callProperty(QV4::ExecutionEngine*, int, QV4::CallData*) () at /usr/lib/libQt5Qml.so.5
#15 0x00007f5438a1fdb1 in  ()
#16 0x0000000000000000 in  ()

Reported using DrKonqi