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  1. Qt
  2. QTBUG-106025

REG: isSignalConnected creates a dead lock.

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Details

    • macOS, Windows
    • 22d4c67234 (qt/qtbase/dev) 22d4c67234 (qt/tqtc-qtbase/dev) b46e179186 (qt/qtbase/6.3) b46e179186 (qt/tqtc-qtbase/6.3), 0369967e3 (6.4), f5b874fd2 (dev), 206a8fec2 (6.9), cb92b777e (6.8), b85971b4d (tqtc/lts-6.5)

    Description

      isSignalConnected with Qt 6 and higher version of Qt.15 hangs/blocks. This is a regression and did not happen with previous version of Qt 515.5
      This is broken since 5.15.6
      See attached test project.

      Attachments

        Issue Links

          resulted from

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-88248 QObject orphaned connections soft-leak

          • 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
          resulted in

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-107034 tst_QObjectRace::disconnectRace2 crashes in CI

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          For Gerrit Dashboard: QTBUG-106025
          # Subject Branch Project Status CR V
          429444,2 QObject: attempt to fix a deadlock introduced by an earlier fix dev qt/qtbase Status: MERGED +2 0
          433071,1 QObject: attempt to fix a deadlock introduced by an earlier fix 6.4 qt/qtbase Status: ABANDONED -1 0
          433072,2 QObject: attempt to fix a deadlock introduced by an earlier fix 6.3 qt/qtbase Status: MERGED +2 0
          433074,1 QObject: attempt to fix a deadlock introduced by an earlier fix tqtc/lts-6.2 qt/tqtc-qtbase Status: ABANDONED -1 0
          433075,1 QObject: attempt to fix a deadlock introduced by an earlier fix tqtc/lts-5.15 qt/tqtc-qtbase Status: ABANDONED 0 0
          444678,4 QObject: stronger warning about isSignalConnected and threads dev qt/qtbase Status: MERGED +2 0
          445516,2 QObject: stronger warning about isSignalConnected and threads 6.4 qt/qtbase Status: MERGED +2 0
          445517,2 QObject: stronger warning about isSignalConnected and threads tqtc/lts-6.2 qt/tqtc-qtbase Status: MERGED +2 0
          627363,2 [Doc] QObject: Sync warnings of isSignalConnected() and receivers() dev qt/qtbase Status: MERGED +2 0
          627644,2 [Doc] QObject: Sync warnings of isSignalConnected() and receivers() 6.9 qt/qtbase Status: MERGED +2 0
          627788,2 [Doc] QObject: Sync warnings of isSignalConnected() and receivers() 6.8 qt/qtbase Status: MERGED +2 0
          627941,2 [Doc] QObject: Sync warnings of isSignalConnected() and receivers() tqtc/lts-6.5 qt/tqtc-qtbase Status: MERGED +2 0

          Activity

            People

              vhilshei Volker Hilsheimer
              irfan.omair@digia.com Irfan Omair
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              Dates

                Created:
                Updated:
                Resolved: