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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
71eefb977b
The issue occurs when 'IMFShutdown::Shutdown' is called on MFT on one thread and IMFMediaEventGenerator::EndGetEvent' is called on another thread. Shutdown is taking a lock (m_lockShutdown), changes m_bShutdown to true, then calls OnFlush which takes API lock (m_lock) EndGetEvent and all other API's take an API lock (m_lock), then calls checkshutdownstatus() which takes the m_lockShutdown. So if Shutdown acquires m_lockShutdown and prior to acquiring API lock, and EndGetEvent acquire m_lock, then we have deadlock on m_lockShutdown. Since the CheckShutdownStatus is only checking the m_bShutdown variable, it really doesn't have to be protected by the shutdown lock. Reviewed-by: Jesse Natalie <jenatali@microsoft.com> Reviewed-by: Yubo Xie <yuboxie@microsoft.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36507> |
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`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library ====================================================== Source ------ This repository lives at https://gitlab.freedesktop.org/mesa/mesa. Other repositories are likely forks, and code found there is not supported. Build & install --------------- You can find more information in our documentation (`docs/install.rst <https://docs.mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.rst <https://docs.mesa3d.org/meson.html>`_): .. code-block:: sh $ meson setup build $ ninja -C build/ $ sudo ninja -C build/ install Support ------- Many Mesa devs hang on IRC; if you're not sure which channel is appropriate, you should ask your question on `OFTC's #dri-devel <irc://irc.oftc.net/dri-devel>`_, someone will redirect you if necessary. Remember that not everyone is in the same timezone as you, so it might take a while before someone qualified sees your question. To figure out who you're talking to, or which nick to ping for your question, check out `Who's Who on IRC <https://dri.freedesktop.org/wiki/WhosWho/>`_. The next best option is to ask your question in an email to the mailing lists: `mesa-dev\@lists.freedesktop.org <https://lists.freedesktop.org/mailman/listinfo/mesa-dev>`_ Bug reports ----------- If you think something isn't working properly, please file a bug report (`docs/bugs.rst <https://docs.mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.rst <https://docs.mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.