Re: [PATCH 03/15] dma-buf & drm/amdgpu: remove dma_resv workaround

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On Wed, 2022-04-20 at 09:37 +0200, Christian König wrote:
> ⚠ External Email
> 
> Hi Zack,
> 
> Am 20.04.22 um 05:56 schrieb Zack Rusin:
> > On Thu, 2022-04-07 at 10:59 +0200, Christian König wrote:
> > > Rework the internals of the dma_resv object to allow adding more
> > > than
> > > one
> > > write fence and remember for each fence what purpose it had.
> > > 
> > > This allows removing the workaround from amdgpu which used a
> > > container
> > > for
> > > this instead.
> > > 
> > > Signed-off-by: Christian König <christian.koenig@xxxxxxx>
> > > Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> > > Cc: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
> > 
> > afaict this change broke vmwgfx which now kernel oops right after
> > boot.
> > I haven't had the time to look into it yet, so I'm not sure what's
> > the
> > problem. I'll look at this tomorrow, but just in case you have some
> > clues, the backtrace follows:
> 
> that's a known issue and should already be fixed with:
> 
> commit d72dcbe9fce505228dae43bef9da8f2b707d1b3d
> Author: Christian König <christian.koenig@xxxxxxx>
> Date:   Mon Apr 11 15:21:59 2022 +0200

Unfortunately that doesn't seem to be it. The backtrace is from the
current (as of the time of sending of this email) drm-misc-next, which
has this change, so it's something else.

z




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