[Bug 107926] [anv] Rise of the Tomb Raider always misrendering, segfault and gpu hang.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107926

--- Comment #11 from Jason Ekstrand <jason at jlekstrand.net> ---
The crash is fixed by the following commit on master:

commit f5bab06428fc7ca6116cf0daf1c237eb86202e7a
Author: Jason Ekstrand <jason.ekstrand at intel.com>
Date:   Tue Oct 2 17:19:32 2018 -0500

    anv/batch_chain: Don't start a new BO just for BATCH_BUFFER_START

    Previously, we just went ahead and emitted MI_BATCH_BUFFER_START as
    normal.  If we are near enough to the end, this can cause us to start a
    new BO just for the MI_BATCH_BUFFER_START which messes up chaining.  We
    always reserve enough space at the end for an MI_BATCH_BUFFER_START so
    we can just increment cmd_buffer->batch.end prior to emitting the
    command.

    Fixes: a0b133286a3 "anv/batch_chain: Simplify secondary batch return..."
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107926
    Tested-by: Alex Smith <asmith at feralinteractive.com>
    Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin at intel.com>

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