Nathan Kidd 9a80b7fd8f llvmpipe: Check thread creation errors
In the case of glibc, pthread_t is internally a pointer.  If
lp_rast_destroy() passes a 0-value pthread_t to pthread_join(), the
latter will SEGV dereferencing it.

pthread_create() can fail if either the user's ulimit -u or Linux
kernel's /proc/sys/kernel/threads-max is reached.

Choosing to continue, rather than fail, on theory that it is better to
run with the one main thread, than not run at all.

Keeping as many threads as we got, since lack of threads severely
degrades llvmpipe performance.

Signed-off-by: Nathan Kidd <nkidd@opentext.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
2019-11-15 02:43:22 +01:00
2019-09-10 20:36:47 +00:00
2019-05-24 18:44:18 +00:00
2019-10-18 16:42:40 +00:00
2019-10-26 08:23:48 +01:00
2019-10-30 14:56:02 -07:00

`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 email mailing-lists for patches submission, review and
discussions.
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