https://bugs.kde.org/show_bug.cgi?id=388586
Bug ID: 388586
Summary: Plasma crashed after using Alt + Tab to switch between
windows.
Product: kwin
Version: 5.11.5
Platform: Archlinux Packages
OS: Linux
Status: UNCONFIRMED
Keywords: drkonqi
Severity: crash
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: par...@gmail.com
Target Milestone: ---
Application: kwin_x11 (5.11.5)
Qt Version: 5.10.0
Frameworks Version: 5.41.0
Operating System: Linux 4.14.11-1-ARCH x86_64
Distribution (Platform): Archlinux Packages
-- Information about the crash:
Title fairly self contained.
I simply used terminal and switched between that and the web browser, whilst
the screen froze for a split second and kwin restarted itself.
Arch - plasma-meta - uptodate
The crash can be reproduced sometimes.
-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f90181e0840 (LWP 18179))]
Thread 6 (Thread 0x7f8fe096c700 (LWP 21488)):
#0 0x00007f9010a7d38d in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1 0x00007f9014ee200c in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2 0x00007f900fc479ca in () at /usr/lib/libQt5Quick.so.5
#3 0x00007f900fc47e54 in () at /usr/lib/libQt5Quick.so.5
#4 0x00007f9014ee0b2d in () at /usr/lib/libQt5Core.so.5
#5 0x00007f9010a7708a in start_thread () at /usr/lib/libpthread.so.0
#6 0x00007f9017b5742f in clone () at /usr/lib/libc.so.6
Thread 5 (Thread 0x7f8fce53a700 (LWP 18202)):
#0 0x00007f9010a7d38d in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1 0x00007f9014035f77 in () at /usr/lib/libQt5Script.so.5
#2 0x00007f9014035fb9 in () at /usr/lib/libQt5Script.so.5
#3 0x00007f9010a7708a in start_thread () at /usr/lib/libpthread.so.0
#4 0x00007f9017b5742f in clone () at /usr/lib/libc.so.6
Thread 4 (Thread 0x7f8fe2872700 (LWP 18197)):
#0 0x00007f90150fdf6a in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib/libQt5Core.so.5
#1 0x00007f90151267b8 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#2 0x00007f90150cb82b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#3 0x00007f9014edb78e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#4 0x00007f900f54aa19 in () at /usr/lib/libQt5Qml.so.5
#5 0x00007f9014ee0b2d in () at /usr/lib/libQt5Core.so.5
#6 0x00007f9010a7708a in start_thread () at /usr/lib/libpthread.so.0
#7 0x00007f9017b5742f in clone () at /usr/lib/libc.so.6
Thread 3 (Thread 0x7f8ff5cd2700 (LWP 18192)):
#0 0x00007f9017b4d026 in ppoll () at /usr/lib/libc.so.6
#1 0x00007f9015125213 in qt_safe_poll(pollfd*, unsigned long, timespec const*)
() at /usr/lib/libQt5Core.so.5
#2 0x00007f90151269af in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#3 0x00007f90150cb82b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#4 0x00007f9014edb78e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5 0x00007f900f54aa19 in () at /usr/lib/libQt5Qml.so.5
#6 0x00007f9014ee0b2d in () at /usr/lib/libQt5Core.so.5
#7 0x00007f9010a7708a in start_thread () at /usr/lib/libpthread.so.0
#8 0x00007f9017b5742f in clone () at /usr/lib/libc.so.6
Thread 2 (Thread 0x7f8ff7fff700 (LWP 18184)):
#0 0x00007f9017b4d026 in ppoll () at /usr/lib/libc.so.6
#1 0x00007f9015125213 in qt_safe_poll(pollfd*, unsigned long, timespec const*)
() at /usr/lib/libQt5Core.so.5
#2 0x00007f90151269af in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#3 0x00007f90150cb82b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#4 0x00007f9014edb78e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5 0x00007f900e6c0416 in () at /usr/lib/libQt5DBus.so.5
#6 0x00007f9014ee0b2d in () at /usr/lib/libQt5Core.so.5
#7 0x00007f9010a7708a in start_thread () at /usr/lib/libpthread.so.0
#8 0x00007f9017b5742f in clone () at /usr/lib/libc.so.6
Thread 1 (Thread 0x7f90181e0840 (LWP 18179)):
[KCrash Handler]
#5 0x000000004172ffd9 in ()
#6 0x00007f8fe57f5fb9 in () at /usr/lib/libnvidia-glcore.so.387.34
#7 0x00007f8fe57fcb14 in () at /usr/lib/libnvidia-glcore.so.387.34
#8 0x00007f8fe5805814 in () at /usr/lib/libnvidia-glcore.so.387.34
#9 0x00007f8fe53c5a95 in () at /usr/lib/libnvidia-glcore.so.387.34
#10 0x00007f900fc076c7 in
QSGBatchRenderer::Renderer::renderMergedBatch(QSGBatchRenderer::Batch const*)
() at /usr/lib/libQt5Quick.so.5
#11 0x00007f900fc08966 in QSGBatchRenderer::Renderer::renderBatches() () at
/usr/lib/libQt5Quick.so.5
#12 0x00007f900fc0e1de in QSGBatchRenderer::Renderer::render() () at
/usr/lib/libQt5Quick.so.5
#13 0x00007f900fbfe632 in QSGRenderer::renderScene(QSGBindable const&) () at
/usr/lib/libQt5Quick.so.5
#14 0x00007f900fbfeb30 in QSGRenderer::renderScene(unsigned int) () at
/usr/lib/libQt5Quick.so.5
#15 0x00007f900fc38c60 in
QSGDefaultRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () at
/usr/lib/libQt5Quick.so.5
#16 0x00007f900fc9d110 in QQuickWindowPrivate::renderSceneGraph(QSize const&)
() at /usr/lib/libQt5Quick.so.5
#17 0x00007f900fd5d8aa in QQuickRenderControl::render() () at
/usr/lib/libQt5Quick.so.5
#18 0x00007f8ff5f50bbd in () at
/usr/lib/qt/plugins/org.kde.kdecoration2/kwin5_aurorae.so
#19 0x00007f90150fdb2f in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib/libQt5Core.so.5
#20 0x00007f901510a958 in QTimer::timeout(QTimer::QPrivateSignal) () at
/usr/lib/libQt5Core.so.5
#21 0x00007f901510acc9 in QTimer::timerEvent(QTimerEvent*) () at
/usr/lib/libQt5Core.so.5
#22 0x00007f90150fe40b in QObject::event(QEvent*) () at
/usr/lib/libQt5Core.so.5
#23 0x00007f9015e47e3c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/libQt5Widgets.so.5
#24 0x00007f9015e4f816 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#25 0x00007f90150cd1e0 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/libQt5Core.so.5
#26 0x00007f9015128ad8 in QTimerInfoList::activateTimers() () at
/usr/lib/libQt5Core.so.5
#27 0x00007f9015126c14 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#28 0x00007f8fffa0a51e in () at /usr/lib/libQt5XcbQpa.so.5
#29 0x00007f90150cb82b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#30 0x00007f90150d4b18 in QCoreApplication::exec() () at
/usr/lib/libQt5Core.so.5
#31 0x00007f9017e216e3 in kdemain () at /usr/lib/libkdeinit5_kwin_x11.so
#32 0x00007f9017a81f4a in __libc_start_main () at /usr/lib/libc.so.6
#33 0x000056543198f7aa in _start ()
Reported using DrKonqi
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