[cairo-bugs] [Bug 74355] Line drawing not thread-safe

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=74355

--- Comment #8 from Søren Sandmann Pedersen <sandmann at cs.au.dk> ---
It is possible that pixman's support for TLS on Windows is simply buggy; it may
be that not a lot of people have been using pixman in a multithreaded way on
Windows (or have worked around the problem in some way). We will need some kind
of way to reproduce the issue to know.

In pixman 0.32.0 and later there is a test program called 'thread-test' that
may reproduce this issue if you can get it running on Windows.

Also, if TLS is indeed the problem, then your test program may reproduce the
issue if you modify it to use a larger set of operators (more than 8), so that
pixman's caching code will be exercised more.

Finally, if you do file a bug against the GNOME binaries, please CC
"sandmann at cs.au.dk".

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