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  1. Qt
  2. QTBUG-99323

[REG: 5.14.2 -> 5.15.0] Posted events get stuck when QCoreApplication::processEvents with QEventLoop::WaitForMoreEvents is used

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Details

    • Windows
    • d671bab0e3 (qt/qtbase/dev) d671bab0e3 (qt/tqtc-qtbase/dev) eb1103c02a (qt/qtbase/6.3) eb1103c02a (qt/tqtc-qtbase/6.3) 40c4b2ae44 (qt/qtbase/6.2) 40c4b2ae44 (qt/tqtc-qtbase/6.2) 07d065cbbe (qt/tqtc-qtbase/5.15)

    Description

      Posted events get stuck when QCoreApplication::processEvents with QEventLoop::WaitForMoreEvents is used.

      Way to reproduce:

      Build and Run the attached example with affected Qt version (Qt 5.15.7 or Qt 6.2.2 for example)

      The posted events seem to get stuck.

      The last known good was Qt 5.14.2 where the event loop did not get stuck.

      Attachments

        Issue Links

          resulted in

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-119869 [Reg 5.15.8 -> 5.15.9]Dragging and changing row/column width/height of QTableWidget that is registered as ActiveX server causes MFC application stops responding

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Reported

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-105719 [Reg 6.2.3 -> 6.2.4] Resizing QTableView header freezes application when using event loop from QMfcApp::pluginInstance()

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-123498 [Reg 6.2.0 -> 6.2.11 (possibly 6.2.3->6.2.4)][ActiveQt] Resizing QTableView header inside a QAXCLASS freezes COM application

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
          For Gerrit Dashboard: QTBUG-99323
          # Subject Branch Project Status CR V
          387409,16 Win32: always allow the event loop to be woken up by posted events dev qt/qtbase Status: MERGED +2 0
          388793,14 Add more tests for event dispatcher waking up dev qt/qtbase Status: MERGED +2 0
          390885,2 Add more tests for event dispatcher waking up 6.3 qt/qtbase Status: MERGED +2 0
          390886,2 Add more tests for event dispatcher waking up 6.2 qt/qtbase Status: MERGED +2 0
          390888,2 Win32: always allow the event loop to be woken up by posted events 6.3 qt/qtbase Status: MERGED +2 0
          390929,2 Win32: always allow the event loop to be woken up by posted events 6.2 qt/qtbase Status: MERGED +2 0
          390937,2 Add more tests for event dispatcher waking up tqtc/lts-5.15 qt/tqtc-qtbase Status: ABANDONED +2 0
          390938,4 Win32: always allow the event loop to be woken up by posted events tqtc/lts-5.15 qt/tqtc-qtbase Status: MERGED +2 0

          Activity

            People

              vhilshei Volker Hilsheimer
              foxxx Tuukka Kettunen
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              Dates

                Created:
                Updated:
                Resolved: