https://bugs.kde.org/show_bug.cgi?id=452572
--- Comment #1 from Nicolas Fella <nicolas.fe...@gmx.de> ---
Also reproducible with fresher master
(e3fe69041f2b1cc8a8c232123d2a54a0e8ba93ba)
#0 0x00007f00e84324dc in KWin::GLFramebuffer::valid() const (this=0xd) at
/home/nico/kde/src/kwin/src/libkwineffects/kwinglutils.h:424
#1 KWin::GLFramebuffer::bind() (this=0xd) at
/home/nico/kde/src/kwin/src/libkwineffects/kwinglutils.cpp:1031
#2 0x00007f00e843596e in KWin::GLFramebuffer::popFramebuffer() () at
/home/nico/kde/src/kwin/src/libkwineffects/kwinglutils.cpp:993
#3 KWin::GLFramebuffer::popFramebuffer() () at
/home/nico/kde/src/kwin/src/libkwineffects/kwinglutils.cpp:989
#4 0x00007f00e082a699 in KWin::EglGbmLayer::endFrame(QRegion const&, QRegion
const&) (this=0x2a2f190, renderedRegion=<optimized out>, damagedRegion=...) at
/home/nico/kde/src/kwin/src/backends/drm/egl_gbm_layer.cpp:146
#5 0x00007f00e0828fcf in KWin::EglGbmLayer::renderTestBuffer()
(this=this@entry=0x2a2f190) at
/home/nico/kde/src/kwin/src/backends/drm/egl_gbm_layer.cpp:190
#6 0x00007f00e08298c4 in KWin::EglGbmLayer::testBuffer() (this=0x2a2f190) at
/home/nico/kde/src/kwin/src/backends/drm/egl_gbm_layer.cpp:177
#7 0x00007f00e081ff5c in
KWin::DrmPipeline::commitPipelinesAtomic(QVector<KWin::DrmPipeline*> const&,
KWin::DrmPipeline::CommitMode, QVector<KWin::DrmObject*> const&)
(pipelines=..., mode=mode@entry=KWin::DrmPipeline::CommitMode::Test,
unusedObjects=...)
at /home/nico/kde/src/kwin/src/backends/drm/drm_pipeline.cpp:116
#8 0x00007f00e0820e64 in
KWin::DrmPipeline::commitPipelines(QVector<KWin::DrmPipeline*> const&,
KWin::DrmPipeline::CommitMode, QVector<KWin::DrmObject*> const&)
(pipelines=..., mode=mode@entry=KWin::DrmPipeline::CommitMode::Test,
unusedObjects=...)
at /home/nico/kde/src/kwin/src/backends/drm/drm_pipeline.cpp:88
#9 0x00007f00e0817609 in KWin::DrmGpu::testPipelines()
(this=this@entry=0x2327ce0) at
/home/nico/kde/src/kwin/src/backends/drm/drm_gpu.cpp:451
#10 0x00007f00e08177a5 in
KWin::DrmGpu::checkCrtcAssignment(QVector<KWin::DrmConnector*>,
QVector<KWin::DrmCrtc*> const&) (this=this@entry=0x2327ce0, connectors=...,
crtcs=...) at /home/nico/kde/src/kwin/src/backends/drm/drm_gpu.cpp:359
#11 0x00007f00e0817ec6 in
KWin::DrmGpu::checkCrtcAssignment(QVector<KWin::DrmConnector*>,
QVector<KWin::DrmCrtc*> const&) (this=this@entry=0x2327ce0, connectors=...,
crtcs=...) at /home/nico/kde/src/kwin/src/backends/drm/drm_gpu.cpp:380
#12 0x00007f00e0817c7e in
KWin::DrmGpu::checkCrtcAssignment(QVector<KWin::DrmConnector*>,
QVector<KWin::DrmCrtc*> const&) (this=this@entry=0x2327ce0, connectors=...,
crtcs=...) at /home/nico/kde/src/kwin/src/backends/drm/drm_gpu.cpp:366
#13 0x00007f00e0818499 in operator() (__closure=<optimized out>) at
/home/nico/kde/src/kwin/src/backends/drm/drm_gpu.cpp:422
#14 operator() (__closure=<optimized out>) at
/home/nico/kde/src/kwin/src/backends/drm/drm_gpu.cpp:420
#15 KWin::DrmGpu::testPendingConfiguration(KWin::DrmGpu::TestMode)
(this=0x2327ce0,
mode=mode@entry=KWin::DrmGpu::TestMode::TestWithCrtcReallocation) at
/home/nico/kde/src/kwin/src/backends/drm/drm_gpu.cpp:427
#16 0x00007f00e07fd3fc in
KWin::DrmBackend::applyOutputChanges(KWin::WaylandOutputConfig const&)
(this=0x229f940, config=...) at
/home/nico/kde/src/kwin/src/backends/drm/drm_backend.cpp:658
#17 0x00007f00e8664851 in
KWin::Platform::requestOutputsChange(KWaylandServer::OutputConfigurationV2Interface*)
(this=0x229f940, config=0x306e160) at
/home/nico/kde/src/kwin/src/platform.cpp:139
#18 0x00007f00e6a1cb9d in QtPrivate::QSlotObjectBase::call(QObject*, void**)
(a=0x7fff36551ae0, r=0x22d6790, this=0x2308e90) at
../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#19 doActivate<false>(QObject*, int, void**) (sender=0x2308d60, signal_index=3,
argv=0x7fff36551ae0) at kernel/qobject.cpp:3886
#20 0x00007f00e6a1657f in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**)
(sender=<optimized out>, m=m@entry=0x7f00e77ec9c0
<KWaylandServer::OutputManagementV2Interface::staticMetaObject>,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff36551ae0)
at kernel/qobject.cpp:3946
#21 0x00007f00e7698bef in
KWaylandServer::OutputManagementV2Interface::configurationChangeRequested(KWaylandServer::OutputConfigurationV2Interface*)
(this=<optimized out>, _t1=<optimized out>)
at
/home/nico/kde/build/kwayland-server/src/server/KWaylandServer_autogen/EWIEGA46WW/moc_outputmanagement_v2_interface.cpp:136
#22 0x00007f00e47ec572 in ffi_call_unix64 () at ../src/x86/unix64.S:105
#23 0x00007f00e47e9296 in ffi_call_int (cif=<optimized out>, fn=<optimized
out>, rvalue=<optimized out>, avalue=<optimized out>, closure=<optimized out>)
at ../src/x86/ffi64.c:672
#24 0x00007f00e7600090 in wl_closure_invoke (closure=closure@entry=0x290fd80,
target=<optimized out>, target@entry=0x29bae50, opcode=opcode@entry=5,
data=<optimized out>, data@entry=0x2f3c420, flags=<optimized out>) at
../src/connection.c:1025
#25 0x00007f00e7604234 in wl_client_connection_data (fd=<optimized out>,
mask=<optimized out>, data=0x2f3c420) at ../src/wayland-server.c:437
#26 0x00007f00e7602cea in wl_event_loop_dispatch (loop=0x22dbbf0,
timeout=<optimized out>) at ../src/event-loop.c:1027
#27 0x00007f00e76aa7d8 in KWaylandServer::Display::dispatchEvents()
(this=<optimized out>) at
/home/nico/kde/src/kwayland-server/src/server/display.cpp:114
#28 0x00007f00e6a1cb9d in QtPrivate::QSlotObjectBase::call(QObject*, void**)
(a=0x7fff36552310, r=0x22fb220, this=0x28ae5f0) at
../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#29 doActivate<false>(QObject*, int, void**) (sender=0x292c300, signal_index=3,
argv=0x7fff36552310) at kernel/qobject.cpp:3886
#30 0x00007f00e6a1657f in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) (sender=sender@entry=0x292c300, m=m@entry=0x7f00e6cbe160
<QSocketNotifier::staticMetaObject>,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff36552310)
at kernel/qobject.cpp:3946
#31 0x00007f00e6a1feaf in QSocketNotifier::activated(QSocketDescriptor,
QSocketNotifier::Type, QSocketNotifier::QPrivateSignal)
(this=this@entry=0x292c300, _t1=..., _t2=<optimized out>, _t3=...) at
.moc/moc_qsocketnotifier.cpp:178
#32 0x00007f00e6a205ab in QSocketNotifier::event(QEvent*) (this=0x292c300,
e=0x7fff36552420) at kernel/qsocketnotifier.cpp:302
#33 0x00007f00e5a38a3f in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=<optimized out>, receiver=0x292c300, e=0x7fff36552420) at
kernel/qapplication.cpp:3637
#34 0x00007f00e69e88ca in QCoreApplication::notifyInternal2(QObject*, QEvent*)
(receiver=0x292c300, event=0x7fff36552420) at kernel/qcoreapplication.cpp:1064
#35 0x00007f00e6a3997b in
QEventDispatcherUNIXPrivate::activateSocketNotifiers() (this=0x22d65e0) at
kernel/qeventdispatcher_unix.cpp:304
#36 0x00007f00e6a39dbb in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=<optimized out>, flags=...) at kernel/qeventdispatcher_unix.cpp:511
#37 0x00000000005448bd in
QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=<optimized out>, flags=...) at qunixeventdispatcher.cpp:63
#38 0x00007f00e69e744b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7fff36552590, flags=..., flags@entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:69
#39 0x00007f00e69ef09c in QCoreApplication::exec() () at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#40 0x00007f00e6e0d45c in QGuiApplication::exec() () at
kernel/qguiapplication.cpp:1867
#41 0x00007f00e5a389b5 in QApplication::exec() () at
kernel/qapplication.cpp:2829
#42 0x000000000044bf53 in main(int, char**) (argc=<optimized out>,
argv=<optimized out>) at /home/nico/kde/src/kwin/src/main_wayland.cpp:659
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