Nouveau - May 2016 - [Bug 95403] New: [GK110] misaligned_gpr spamming dmesg when playing victor vran

https://bugs.freedesktop.org/show_bug.cgi?id=95403

            Bug ID: 95403
           Summary: [GK110] misaligned_gpr spamming dmesg when playing
                    victor vran
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: minor
          Priority: medium
         Component: Drivers/DRI/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: tomenglund26 at gmail.com
        QA Contact: nouveau at lists.freedesktop.org

kernel: 4.5.2
mesa: 11.3.0_devel.81287.59156b2

when playing victor vran dmesg gets spammed with MISALIGNED_GPR and
MULTIPLE_WARP_ERRORS, the game runs and i cant notice any particular side
effects from it, i have apitraced it and found the bad
glDrawElementsInstancedBaseVertex call. karolherbst didnt get it when replaying
the trace which is why we suspected its a gk110+ issue.

the call happends in frame 228 and call 372955 according to qapitrace.

trace is a bit big, 372mb compressed.

trace:
https://www.dropbox.com/s/lxrt0oneqaz4mvb/victorvran.tar.xz?dl=1

dmesg:
https://gist.github.com/gulafaran/012338e3c3d07c34e289957cb934f5ed

GL_FRAGMENT_SHADER from qapitrace:
https://gist.github.com/gulafaran/2dfa0998770e3b35468013df07216e71

GL_VERTEX_SHADER from qapitrace:
https://gist.github.com/gulafaran/cb51eae8ba9bdb79ed59ca8988266e39

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https://bugs.freedesktop.org/show_bug.cgi?id=95403

Ilia Mirkin <imirkin at alum.mit.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED

--- Comment #1 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Should be fixed by:

commit 2ef3cdb07e42d985103b5a3e930b2bba676e920b
Author: Ilia Mirkin <imirkin at alum.mit.edu>
Date:   Sat May 14 19:25:15 2016 -0400

    nvc0/ir: make sure to align the second arg of TXD to 4, as we do for TEX

    This was handled in handleTEX(), however the way the logic works, those
    extra arguments aren't added on by then, so it did nothing. Instead we
    must duplicate that bit here. GK110 appears to complain about
    MISALIGNED_GPR, however it's reasonable to believe that GK104 has the
    same requirements.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=95403
    Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
    Cc: mesa-stable at lists.freedesktop.org
    Reviewed-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>

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