Bug 402045

Application: plasmashell (5.14.4)

Qt Version: 5.12.0
Frameworks Version: 5.53.0
Operating System: Linux 4.14.87-1-lts x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- Unusual behavior I noticed:
The screen flashes, the windows closes for a while and redshift restarts.

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 0x7fa03020d5c0 (LWP 8968))]

Thread 7 (Thread 0x7fa017fff700 (LWP 9382)):
#0  0x00007fa035608c21 in poll () at /usr/lib/libc.so.6
#1  0x00007fa03390cee0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fa03390cfce in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fa035b3b5c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fa035ae458c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fa0359285c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fa0375eae5b in  () at /usr/lib/libQt5Quick.so.5
#7  0x00007fa0359299cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fa034831a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fa035613b23 in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7fa0177fe700 (LWP 9181)):
#0  0x00007fa035b3b34a in  () at /usr/lib/libQt5Core.so.5
#1  0x00007fa03390c7aa in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x00007fa03390ce06 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007fa03390cfce in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007fa035b3b5c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fa035ae458c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fa0359285c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007fa0359299cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fa034831a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fa035613b23 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7fa01e312700 (LWP 9022)):
#0  0x00007fa034837afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fa01e8ea28c in  () at /usr/lib/dri/i965_dri.so
#2  0x00007fa01e8e9fc8 in  () at /usr/lib/dri/i965_dri.so
#3  0x00007fa034831a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fa035613b23 in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7fa02cce1700 (LWP 9013)):
#0  0x00007fa03390b6b6 in  () at /usr/lib/libglib-2.0.so.0
#1  0x00007fa03390c6db in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x00007fa03390ce06 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007fa03390cfce in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007fa035b3b5c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fa035ae458c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fa0359285c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007fa037324b89 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007fa0359299cc in  () at /usr/lib/libQt5Core.so.5
#9  0x00007fa034831a9d in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007fa035613b23 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7fa02def2700 (LWP 9006)):
#0  0x00007fa035608c21 in poll () at /usr/lib/libc.so.6
#1  0x00007fa03390cee0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fa03390cfce in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fa035b3b5c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fa035ae458c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fa0359285c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fa0363c2ba6 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007fa0359299cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fa034831a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fa035613b23 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fa02f31c700 (LWP 8998)):
#0  0x00007fa035608c21 in poll () at /usr/lib/libc.so.6
#1  0x00007fa037a63630 in  () at /usr/lib/libxcb.so.1
#2  0x00007fa037a652db in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007fa0300b396b in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007fa0359299cc in  () at /usr/lib/libQt5Core.so.5
#5  0x00007fa034831a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fa035613b23 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7fa03020d5c0 (LWP 8968)):
[KCrash Handler]
#6  0x0000000000000051 in  ()
#7  0x00007fa0377b1047 in QQuickItemViewTransitionableItem::startTransition(QQuickItemViewTransitioner*, int) () at /usr/lib/libQt5Quick.so.5
#8  0x00007fa02e511a7c in  () at /usr/lib/libQt5QuickTemplates2.so.5
#9  0x00007fa02e50feb2 in QQuickStackView::replace(QQmlV4Function*) () at /usr/lib/libQt5QuickTemplates2.so.5
#10 0x00007fa02e537e4d in  () at /usr/lib/libQt5QuickTemplates2.so.5
#11 0x00007fa02e5383a3 in QQuickStackView::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib/libQt5QuickTemplates2.so.5
#12 0x00007fa03727263f in QQmlVMEMetaObject::metaCall(QObject*, QMetaObject::Call, int, void**) () at /usr/lib/libQt5Qml.so.5
#13 0x00007fa0372cb1ae in  () at /usr/lib/libQt5Qml.so.5
#14 0x00007fa0371ce08f in QV4::QObjectMethod::callInternal(QV4::Value const*, QV4::Value const*, int) const () at /usr/lib/libQt5Qml.so.5
#15 0x00007fa037254ef5 in QV4::Runtime::method_callProperty(QV4::ExecutionEngine*, QV4::Value*, int, QV4::Value*, int) () at /usr/lib/libQt5Qml.so.5
#16 0x00007fa00b1ffc21 in  ()
#17 0x0000000000000000 in  ()
[Inferior 1 (process 8968) detached]

Reported using DrKonqi