https://bugs.kde.org/show_bug.cgi?id=399392
Bug ID: 399392
Summary: Crash in
KWin::QPA::SharingPlatformContext::makeCurrent with
5.12 making QtQuick windows
Product: kwin
Version: 5.14.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: k...@davidedmundson.co.uk
Target Milestone: ---
Crash in Qt5.12 showing a QQuickScene (classic tab switcher or switch desktop)
Caused by 8b3a6cfbfb21a71b8efc2e3a91006712238db6fe in qtbase, but no Qt QPA
seems to have issues.
I'm using the threaded render loop
(gdb) bt
#0 0x00007fb6b731f348 in QOpenGLContext::format() const (this=0x0) at
/home/david/projects/qt5/qtbase/src/gui/kernel/qopenglcontext.cpp:1161
#1 0x00007fb6b731f45f in QOpenGLContext::isOpenGLES() const (this=<optimized
out>)
at /home/david/projects/qt5/qtbase/src/gui/kernel/qopenglcontext.cpp:1311
#2 0x00007fb6b75f8c73 in effectiveInternalFormat (internalFormat=0) at
/home/david/projects/qt5/qtbase/src/gui/opengl/qopenglframebufferobject.cpp:883
#3 0x00007fb6b75f8c73 in
QOpenGLFramebufferObject::QOpenGLFramebufferObject(int, int,
QOpenGLFramebufferObject::Attachment, unsigned int, unsigned int)
(this=0x55e08cf278a0, width=492, height=127,
attachment=QOpenGLFramebufferObject::CombinedDepthStencil, target=3553,
internalFormat=0)
at
/home/david/projects/qt5/qtbase/src/gui/opengl/qopenglframebufferobject.cpp:974
#4 0x00007fb6ac1f9978 in KWin::QPA::Window::createFBO() (this=0x55e08ceb8570)
at
/home/david/projects/kde5/src/kde/workspace/kwin/plugins/qpa/window.cpp:160
#5 0x00007fb6ac1f9806 in KWin::QPA::Window::bindContentFBO()
(this=0x55e08ceb8570)
at
/home/david/projects/kde5/src/kde/workspace/kwin/plugins/qpa/window.cpp:142
#6 0x00007fb6ac1f86aa in
KWin::QPA::SharingPlatformContext::makeCurrent(QPlatformSurface*)
(this=0x55e08cee92d0, surface=0x55e08ceb8570)
at
/home/david/projects/kde5/src/kde/workspace/kwin/plugins/qpa/sharingplatformcontext.cpp:52
#7 0x00007fb6b732128c in QOpenGLContext::makeCurrent(QSurface*)
(this=0x55e08cee9fd0, surface=0x55e08cd17a80)
at /home/david/projects/qt5/qtbase/src/gui/kernel/qopenglcontext.cpp:987
#8 0x00007fb6bdc6dfe7 in QSGGuiThreadRenderLoop::renderWindow(QQuickWindow*)
(this=this@entry=0x55e08c8c8ba0, window=<optimized out>)
at
/home/david/projects/qt5/qtdeclarative/src/quick/scenegraph/qsgrenderloop.cpp:380
#9 0x00007fb6bdc6ec19 in
QSGGuiThreadRenderLoop::exposureChanged(QQuickWindow*) (this=0x55e08c8c8ba0,
window=<optimized out>)
at
/home/david/projects/qt5/qtdeclarative/src/quick/scenegraph/qsgrenderloop.cpp:483
#10 0x00007fb6bdcec518 in QQuickWindow::exposeEvent(QExposeEvent*)
(this=<optimized out>)
at
/home/david/projects/qt5/qtdeclarative/src/quick/items/qquickwindow.cpp:229
#11 0x00007fb6b72e71b4 in QWindow::event(QEvent*)
(this=this@entry=0x55e08cd17a70, ev=ev@entry=0x7ffd40de8670)
at /home/david/projects/qt5/qtbase/src/gui/kernel/qwindow.cpp:2307
#12 0x00007fb6bdcfd6d7 in QQuickWindow::event(QEvent*) (this=0x55e08cd17a70,
e=0x7ffd40de8670)
at
/home/david/projects/qt5/qtdeclarative/src/quick/items/qquickwindow.cpp:1658
#13 0x00007fb690940eb7 in PlasmaQuick::Dialog::event(QEvent*)
(this=0x55e08cd17a70, event=0x7ffd40de8670)
at
/home/david/projects/kde5/src/frameworks/plasma-framework/src/plasmaquick/dialog.cpp:1306
#14 0x00007fb6b78f9fdd in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=this@entry=0x55e08c324a90, receiver=receiver@entry=0x55e08cd17a70,
e=e@entry=0x7ffd40de8670) at
/home/david/projects/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3752
#15 0x00007fb6b7901da3 in QApplication::notify(QObject*, QEvent*)
(this=0x7ffd40dee8d0, receiver=0x55e08cd17a70, e=0x7ffd40de8670)
at /home/david/projects/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3109
#16 0x00007fb6b6edc6eb in QCoreApplication::notifyInternal2(QObject*, QEvent*)
(receiver=0x55e08cd17a70, event=0x7ffd40de8670)
at
/home/david/projects/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1057
#17 0x00007fb6b6edc964 in QCoreApplication::sendSpontaneousEvent(QObject*,
QEvent*) (receiver=receiver@entry=0x55e08cd17a70,
event=event@entry=0x7ffd40de8670) at
/home/david/projects/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1459
#18 0x00007fb6b72dbdc1 in
QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*)
(e=<optimized out>)
at /home/david/projects/qt5/qtbase/src/gui/kernel/qguiapplication.cpp:3065
#19 0x00007fb6b72dbf9c in
QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
(e=e@entry=0x55e08cee73e0)
at /home/david/projects/qt5/qtbase/src/gui/kernel/qguiapplication.cpp:1901
#20 0x00007fb6b72ad161 in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(flags=flags@entry=...)
at
/home/david/projects/qt5/qtbase/src/gui/kernel/qwindowsysteminterface.cpp:1062
#21 0x00007fb6b72ad546 in
QWindowSystemInterface::flushWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(flags=flags@entry=...)
at
/home/david/projects/qt5/qtbase/src/gui/kernel/qwindowsysteminterface.cpp:1031
#22 0x00007fb6b72cafad in QPlatformWindow::setVisible(bool)
(this=0x55e08ceb8570, visible=<optimized out>)
at
../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:120
#23 0x00007fb6ac1f92a0 in KWin::QPA::Window::setVisible(bool)
(this=0x55e08ceb8570, visible=true)
at
/home/david/projects/kde5/src/kde/workspace/kwin/plugins/qpa/window.cpp:78
#24 0x00007fb6b72e6dc1 in QWindowPrivate::setVisible(bool)
(this=0x55e08ccff6d0, visible=<optimized out>)
at /home/david/projects/qt5/qtbase/src/gui/kernel/qwindow.cpp:402
#25 0x00007fb6b72df6ba in QWindow::setVisible(bool) (this=<optimized out>,
visible=<optimized out>)
at /home/david/projects/qt5/qtbase/src/gui/kernel/qwindow.cpp:609
#26 0x00007fb6909411b3 in PlasmaQuick::Dialog::setVisible(bool)
(this=0x55e08cd17a70, visible=true)
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