Bug#1025997: libqt5core5a: Qt applications sometimes crashing at display configuration changes or power savings
Package: libqt5core5a
Version: 5.15.6+dfsg-2
Severity: wishlist
X-Debbugs-Cc: bernhardu@mailbox.org
Dear Maintainer,
I experienced since about a month ago sometimes crashes in applications
running in fullscreen, when doing display configuration changes
or lately when waking up the screen from power saving.
(See below for an example backtrace.)
I opened these upstream bug reports, where the
Qt bug received a patch hopefully fixing this issue:
https://bugs.kde.org/show_bug.cgi?id=461723
https://bugreports.qt.io/browse/QTBUG-109226
https://code.qt.io/cgit/qt/qtbase.git/commit/?id=6a3627b6c5aa5109a80024f3d7b0f938504f7ffe
(Unfortunately it looks like the qt-5.15 cerry-pick is not publicly visible.)
I create this bug also to ask how chances are that this
commit reaches Qt before or during the freeze period?
Kind regards,
Bernhard
(gdb) bt
#3 <signal handler called>
#4 __memcpy_avx_unaligned () at ../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:228
#5 0x00007f00962f142a in memmove (__len=262112, __src=0x7efb8bbe8810, __dest=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/string_fortified.h:36
#6 copy_unswapped (rect=<synthetic pointer>..., img=..., dstBytesPerLine=262112, dst=<optimized out>) at ./src/plugins/platforms/xcb/qxcbbackingstore.cpp:547
#7 native_sub_image (swap=false, rect=<synthetic pointer>..., src=..., dstStride=262112, buffer=0x5557a9af9130) at ./src/plugins/platforms/xcb/qxcbbackingstore.cpp:590
#8 QXcbBackingStoreImage::flushPixmap (this=0x5557a9af90b0, region=..., fullRegion=<optimized out>) at ./src/plugins/platforms/xcb/qxcbbackingstore.cpp:669
#9 0x00007f00962f1a29 in QXcbBackingStoreImage::flushPixmap (fullRegion=false, region=..., this=0x5557a9af90b0) at ./src/plugins/platforms/xcb/qxcbbackingstore.cpp:627
#10 QXcbBackingStoreImage::put (this=0x5557a9af90b0, dst=85983245, region=..., offset=...) at ./src/plugins/platforms/xcb/qxcbbackingstore.cpp:741
#11 0x00007f00962f2369 in QXcbBackingStore::flush (this=this@entry=0x5557a9a3b4d0, window=window@entry=0x5557a98d7c10, region=..., offset=...) at ./src/plugins/platforms/xcb/qxcbwindow.h:128
#12 0x00007f009cd017b2 in QBackingStore::flush (this=this@entry=0x5557a9a4f510, region=..., window=0x5557a98d7c10, offset=...) at painting/qbackingstore.cpp:252
#13 0x00007f009d37059f in QWidgetRepaintManager::flush (this=this@entry=0x5557a9d8fad0, widget=0x5557a98df320, region=..., widgetTextures=<optimized out>) at kernel/qwidgetrepaintmanager.cpp:1184
#14 0x00007f009d372129 in QWidgetRepaintManager::flush (this=0x5557a9d8fad0) at kernel/qwidgetrepaintmanager.cpp:1082
#15 0x00007f009d374270 in QWidgetRepaintManager::paintAndFlush (this=0x5557a9d8fad0) at kernel/qwidgetrepaintmanager.cpp:1014
#16 0x00007f009d3bd341 in QWidgetWindow::handleResizeEvent (this=0x5557a98d7c10, event=0x7ffc26bba560) at kernel/qwidgetwindow.cpp:841
#17 0x00007f009d3c10db in QWidgetWindow::event (this=0x5557a98d7c10, event=0x7ffc26bba560) at kernel/qwidgetwindow.cpp:322
#18 0x00007f009d362f5e in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x5557a98d7c10, e=0x7ffc26bba560) at kernel/qapplication.cpp:3637
#19 0x00007f009c6b1718 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f009cb39bac in QGuiApplicationPrivate::processGeometryChangeEvent (e=<optimized out>) at kernel/qguiapplication.cpp:2610
...
-- System Information:
Debian Release: bookworm/sid
APT prefers testing-debug
APT policy: (500, 'testing-debug'), (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
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