[Bug 34969] [nouveau] Card lockup on openarena

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=34969

--- Comment #16 from Andrew Randrianasulu <randrik at mail.ru> 2011-11-14 15:16:55 PST ---
So, I bisected mesa tree (7.11 branch)

Result:

2a904fd6a0cb80eec6dec2bae07fd8778b04caf3 is the first bad commit
commit 2a904fd6a0cb80eec6dec2bae07fd8778b04caf3
Author: Marek OlЕЎГЎk <maraeo at gmail.com>
Date:   Sun Dec 26 04:30:51 2010 +0100

    st/mesa: set vertex arrays state only when necessary

    The vertex arrays state should be set only when (_NEW_ARRAY | _NEW_PROGRAM)
    is dirty. This assumes user buffer content is mutable, which will be
    sorted out in the next commit. The following usage case should be much
faster
    now:

    for (i = 0; i < 1000; i++) {
       glDrawElements(...);
    }

    Or even:

    for (i = 0; i < 1000; i++) {
       glSomeStateChangeOtherThanArraysOrProgram(...);
       glDrawElements(...);
    }

    The performance increase from this may be significant in some apps and
    negligible in others. It is especially noticable in the Torcs game (r300g):
        Before: 15.4 fps
        After: 20 fps

    Also less looping over attribs in st_draw_vbo yields slight speed-up
    in apps with lots of glDraw* calls.

:040000 040000 45e5630d445206ce8c7eab6ac6bfe144901695bb
927efd20e354ecae459227bd464dbb6001cb448e M      src


guest at slax:~/botva/src/src/mesa$ git bisect log
git bisect start
# good: [0f7325b89038937bd428f7c89ed9859189a0ab0b] i965: Emit texel offsets in
sampler messages.
git bisect good 0f7325b89038937bd428f7c89ed9859189a0ab0b
# bad: [8767fe2437094f33db140a6b92f25116de4fc371] mesa: Sort extensions in
extension string by year.
git bisect bad 8767fe2437094f33db140a6b92f25116de4fc371
# bad: [fbd681f1a03f6ad62432107dc94e02674f6de7bf] i915g: Use dump function in
sw winsys
git bisect bad fbd681f1a03f6ad62432107dc94e02674f6de7bf
# good: [1f5b67416810f7331fe71db0f767418473083701] egl_dri2: add nouveau
support.
git bisect good 1f5b67416810f7331fe71db0f767418473083701
# bad: [e0481cac7d57757d75a39763a1dd36b915979bb4] svga: Disable surface cache
for textures
git bisect bad e0481cac7d57757d75a39763a1dd36b915979bb4
# bad: [fc5ab1b19780ef97c5e7f6257a2d91121503bd53] mesa: use gl_format type
instead of GLuint
git bisect bad fc5ab1b19780ef97c5e7f6257a2d91121503bd53
# bad: [56029ce52bafbc51b5b6660383767257b7770cd7] r300g: inline some of the
pipe_buffer_map/unmap calls
git bisect bad 56029ce52bafbc51b5b6660383767257b7770cd7
# good: [9e96ea0652dda64f8eb311d7dfc9c50519ad02f0] r600g: add alignment cases
for linear aligned
git bisect good 9e96ea0652dda64f8eb311d7dfc9c50519ad02f0
# bad: [588fa884d212eba5ffbc69fda75db37d7c77214c] gallium: notify drivers about
possible changes in user buffer contents
git bisect bad 588fa884d212eba5ffbc69fda75db37d7c77214c
# good: [cfaf217135d8a8e903b3fbf380f18170df018f0c] vbo: bind arrays only when
necessary
git bisect good cfaf217135d8a8e903b3fbf380f18170df018f0c
# good: [cdca3c58aa2d9549f5188910e2a77b438516714f] gallium: remove
pipe_vertex_buffer::max_index
git bisect good cdca3c58aa2d9549f5188910e2a77b438516714f
# bad: [2a904fd6a0cb80eec6dec2bae07fd8778b04caf3] st/mesa: set vertex arrays
state only when necessary
git bisect bad 2a904fd6a0cb80eec6dec2bae07fd8778b04caf3

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