This is fixed in Qt 6.10/dev, by one of many changes affecting the event loop and threading, so it's not obvious which one. It's been flaky on 6.9 for the GUI Glib event loop and has been XPASS'ing. 1133: ********* Start testing of tst_QGuiTimer ********* XPASS : tst_QGuiTimer::crossThreadSingleShotDestruction(1s) 'deadTimerDestroyed' returned TRUE unexpectedly. () Loc: [/home/qt/work/qt/qtbase/tests/auto/corelib/kernel/qtimer/tst_qtimer.cpp(1328)] Pick-to: 6.8 Change-Id: Ibbe5373a1f36eaab9830fffdac20c042682c583e Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
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