466a0b2e49
When Brian in02c3dad0f3restricted the shm permissions it means we hit the fallback paths in some scenarios we hadn't before. When you use Xephyr to xdmcp from one user to another the new perms stop the X server (running as user a) attaching to the SHM segments from gnome-shell (running as user b). In this case however only the GLX side of the code had insight into this, and the dri could was meant of fall back, and it worked for put image fine but the get image path was broken, since there was no indication in the broken case of the need to fallback. This adds a return type to a new interface member that lets the caller know it has to fallback. Fixes:02c3dad0f3("Call shmget() with permission 0600 instead of 0777") Reviewed-by: Michel Dänzer <mdaenzer@redhat.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3823>
`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.html <https://mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.html <https://mesa3d.org/meson.html>`_): .. code-block:: sh $ mkdir build $ cd build $ meson .. $ sudo ninja install Support ------- Many Mesa devs hang on IRC; if you're not sure which channel is appropriate, you should ask your question on `Freenode's #dri-devel <irc://chat.freenode.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.html <https://mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.html <https://mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.