Hello, This bug is related to bug #247991. I have upgraded my system to last 12.2 and last ports with the same result. All qt5 applications crash with Segmentation fault (DRI2) or Bus error (DRI3+SNA). I have tried to rebuild qt5 (5.15.0) from sources to have debug symbol, backtrace is : (gdb) bt #0 0x000000080163fa20 in qt_memfillXX_avx2(unsigned char*, long long __vector(4), long long) () from /root/qt5/lib/libQt5Gui.so.5 #1 0x00000008018bc2d5 in fillRect_normalized(QRect const&, QSpanData*, QRasterPaintEnginePrivate*) () from /root/qt5/lib/libQt5Gui.so.5 #2 0x00000008018bdcd6 in QRasterPaintEngine::fillRect(QRectF const&, QSpanData*) () from /root/qt5/lib/libQt5Gui.so.5 #3 0x00000008018e1a9c in QPainter::fillRect(QRect const&, QBrush const&) () from /root/qt5/lib/libQt5Gui.so.5 #4 0x00000008010c04be in fillRegion(QPainter*, QRegion const&, QBrush const&) () from /root/qt5/lib/libQt5Widgets.so.5 #5 0x00000008010c017f in QWidgetPrivate::paintBackground(QPainter*, QRegion const&, QFlags<QWidgetPrivate::DrawWidgetFlag>) const () from /root/qt5/lib/libQt5Widgets.so.5 Similar issue with qt5 5.14.2. Of course, I have tried to rebuilt qt5 with different build options without any success. My graphic adapter is internal GPU of a i5-4570S CPU. xorg.conf : Identifier "Card0" Driver "intel" BusID "PCI:0:2:0" Option "AccelMethod" "SNA" Option "DRI" "3" EndSection Regards, JKB
(In reply to BERTRAND Joël from comment #0) Current version of qt is 5.15.2 now.
Now, this workstation runs with 5.15.2 and I see exactly the same issue. I have tried with intel and modesetting drivers. Same result. This workstation is a diskless one but I'm not sure this information is relevant. Best regards, JKB
*** Bug 247991 has been marked as a duplicate of this bug. ***
Can you show the output of `disas` right after the crash?
Feedback timeout (it looks like something unique to the OP's system / CPU combination?)