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  1. Qt
  2. QTBUG-51676

Deadlock may happen when local object call happens and qDBusAddSpyHook is used.

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Details

    • Bug
    • Resolution: Done
    • P1: Critical
    • 5.6.1
    • 5.6.0 RC
    • D-Bus
    • None
    • Qt 5.6.0 RC
    • 2e02de165115c9d67ac343ff0960ed80f9c09bc8

    Description

      See new backtrace and main.cpp for more details.
      When qDBusAddSpyHook is used, handleObjectCall will be called from daemon thread. If this happens and the receiver thread tries to make a call to daemon thread, dead lock will happen.

      Attachments

        1. backtrace
          5 kB
        2. backtrace
          9 kB
        3. main.cpp
          1 kB
        For Gerrit Dashboard: QTBUG-51676
        # Subject Branch Project Status CR V
        151459,11 Fix QtDBus deadlock inside kded/kiod 5.6 qt/qtbase Status: MERGED +2 0
        152410,3 Revert "Call out to QtDBus message spies in the main thread" 5.6.0 qt/qtbase Status: ABANDONED -1 0

        Activity

          People

            csslayer Weng Xuetian
            csslayer Weng Xuetian
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            Dates

              Created:
              Updated:
              Resolved:

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