Created attachment 122412 [details] crash backtrace SUMMARY kmail crashed, I think after I clicked the long vertical button to switch from plain text to html, but I am not sure. SOFTWARE/OS VERSIONS KDE Plasma Version: 5.15.5 KDE Frameworks Version: 5.60.0 Qt Version: 5.12.3 ADDITIONAL INFORMATION If you can't do anything with the backtrace attached, pleas close this bug, as I cannot add anything further.
Looks like the crash is in QtQuick rendering. Thread 1 (Thread 0x7f367b7c4a40 (LWP 11757)): [KCrash Handler] #6 0x00007f368fbb1347 in QSGOpaqueTextureMaterialShader::updateState(QSGMaterialShader::RenderState const&, QSGMaterial*, QSGMaterial*) () from /usr/lib64/libQt5Quick.so.5 #7 0x00007f368fba0e81 in QSGBatchRenderer::Renderer::renderMergedBatch(QSGBatchRenderer::Batch const*) () from /usr/lib64/libQt5Quick.so.5 #8 0x00007f368fba1fe5 in QSGBatchRenderer::Renderer::renderBatches() () from /usr/lib64/libQt5Quick.so.5 #9 0x00007f368fba7781 in QSGBatchRenderer::Renderer::render() () from /usr/lib64/libQt5Quick.so.5 #10 0x00007f368fb982dc in QSGRenderer::renderScene(QSGBindable const&) () from /usr/lib64/libQt5Quick.so.5 #11 0x00007f368fb9876f in QSGRenderer::renderScene(unsigned int) () from /usr/lib64/libQt5Quick.so.5 #12 0x00007f368fbd4650 in QSGDefaultRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () from /usr/lib64/libQt5Quick.so.5 #13 0x00007f368fc36b80 in QQuickWindowPrivate::renderSceneGraph(QSize const&) () from /usr/lib64/libQt5Quick.so.5 #14 0x00007f368fcfa5e8 in QQuickRenderControl::render() () from /usr/lib64/libQt5Quick.so.5 #15 0x00007f368ff010ed in ?? () from /usr/lib64/libQt5QuickWidgets.so.5 #16 0x00007f368ff012b6 in ?? () from /usr/lib64/libQt5QuickWidgets.so.5 #17 0x00007f369436e95b in QObject::event (this=this@entry=0x562b1990bdf0, e=e@entry=0x7ffef5641070) at kernel/qobject.cpp:1241 #18 0x00007f3694c971fb in QWidget::event (this=0x562b1990bdf0, event=0x7ffef5641070) at kernel/qwidget.cpp:9388 #19 0x00007f368ff04e05 in QQuickWidget::event(QEvent*) () from /usr/lib64/libQt5QuickWidgets.so.5 #20 0x00007f368f51ae70 in ?? () from /usr/lib64/libQt5WebEngineWidgets.so.5 #21 0x00007f3694c57501 in QApplicationPrivate::notify_helper (this=this@entry=0x562b192180f0, receiver=receiver@entry=0x562b1990bdf0, e=e@entry=0x7ffef5641070) at kernel/qapplication.cpp:3736 #22 0x00007f3694c5e938 in QApplication::notify (this=0x7ffef56417f0, receiver=0x562b1990bdf0, e=0x7ffef5641070) at kernel/qapplication.cpp:3483 #23 0x00007f3694345962 in QCoreApplication::notifyInternal2 (receiver=0x562b1990bdf0, event=0x7ffef5641070) at kernel/qcoreapplication.cpp:1060 #24 0x00007f3694395e24 in QTimerInfoList::activateTimers (this=0x562b19264a60) at kernel/qtimerinfo_unix.cpp:643 #25 0x00007f3694396671 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:182 #26 0x00007f3690ba596e in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0 #27 0x00007f3690ba5c08 in ?? () from /usr/lib64/libglib-2.0.so.0 #28 0x00007f3690ba5c9c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #29 0x00007f3694396ae3 in QEventDispatcherGlib::processEvents (this=0x562b19277820, flags=...) at kernel/qeventdispatcher_glib.cpp:422 #30 0x00007f369434493b in QEventLoop::exec (this=this@entry=0x7ffef56412d0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140 #31 0x00007f369434c5b2 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:120 #32 0x0000562b182bd44f in main (argc=<optimized out>, argv=<optimized out>) at /usr/include/qt5/QtCore/qcoreapplication.h:116 [Inferior 1 (process 11757) detached]
Bug 413664 has a better backtrace. *** This bug has been marked as a duplicate of bug 413664 ***