Re: TTM/nouveau conflict in drm-misc-next

Christian König <ckoenig.leichtzumerken@xxxxxxxxx> · Tue, 18 Aug 2020 17:06:56 +0200

    Am 17.08.20 um 08:31 schrieb Thomas
      Zimmermann:

      Hi

Am 14.08.20 um 18:21 schrieb Koenig, Christian:

Am 14.08.2020 17:53 schrieb Alex Deucher <alexdeucher@xxxxxxxxx>:

    On Fri, Aug 14, 2020 at 11:22 AM Christian König
    <christian.koenig@xxxxxxx> wrote:
    >
    > Hey Thomas & Alex,
    >
    > well the TTM and Nouveau changes look good to me, but this completely
    > broke amdgpu.
    >
    > Alex any idea what is going on here?

    What's broken in amdgpu?  There shouldn't be any ttm changes in amdgpu
    for drm-next.  Those all go through drm-misc.

It's not a TTM change.

The backmerge of drm-next into drm-misc-next broke amdgpu so that even
glxgears doesn't work anymore.

But each individual merge head still works fine as far as I can say.

Any idea how to track that down?

      The backmerge brought in

  Fixes: 16e6eea29d7b ("Merge tag 'amd-drm-fixes-5.9-2020-08-07' ...)

which has quite a few commit. Maybe it's in one of them.

    Nope, I have just double checked that I can revert either parent of
    the merge and the problem disappears.

    I somehow need to figure out how to cleanly revert all patches in
    one branch one by one and then do a reverse bisect. Oh, sometimes I
    love my job :(

    If anybody has a good idea how to do this please speak up.

    Thanks,

    Christian.

Best regards
Thomas

        Christian.

    Alex

    >
    > Regards,
    > Christian.
    >
    > Am 12.08.20 um 21:10 schrieb Thomas Zimmermann:
    > > Hi Christian and Ben,
    > >
    > > I backmerged drm-next into drm-misc-next and had a conflict between ttm
    > > and nouveau. struct ttm_mem_res got renamed to struct ttm_resource. I
    > > updated nouveau to the new name, test-built, and pushed the result to
    > > drm-misc-next. If either of you has a minute, you may want to double
    > > check the merge.
    > >
    > > Best regards
    > > Thomas
    > >
    >
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