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  1. Qt
  2. QTBUG-121910

Investigate using white allocations while gc is running

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    • 970828df9 (dev), bb3999a22 (dev), d6d224892 (dev), e19750538 (dev), b0d753ee3 (dev), bdb624659 (dev), 241b8693d (dev)

    Description

      It seems that the main use case for black allocations was preventing objects from getting swept by the gc https://codereview.qt-project.org/c/qt/qtdeclarative/+/320532 . But this was only possible because the gc lacked an active write barrier.

       

      Now that we do have a write barrier, we should revisit this (as it introduces gotchas in a few places).

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-123426 Assert in qml engine "Q_ASSERT(m()->internalClass->vtable)"

          • 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-129241 Crash at QV4::Value::as<T>

          • 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
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              qtqmlteam Qt Qml Team User
              fabiankosmale Fabian Kosmale
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