Re: [PATCH] drm/i915: Make vm eviction uninterruptible

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On Mon, Apr 07, 2014 at 02:58:34PM -0700, Ben Widawsky wrote:
> Blocking important fixes for a test case is harmful to customers of our
> software. I won't argue past that. If you won't take it as is, add it to the
> JIRA task like you said. I'll carry this one around with my dynamic page table
> allocations since you essentially can't do any real workloads with full PPGTT
> without this (assuming you have signals). I'd venture to even say existing
> tests can hit it with full PPGTT turned on.
> 
> The following will hit it on the very first iteration:
> #!/bin/bash
> 
> while [ 1 ] ;  do
>         (glxgears) & pid[0]=$!
>         (glxgears) & pid[1]=$!
>         (glxgears) & pid[2]=$!
>         sleep 3
>         kill ${pid[*]}
> done

You must agree that this is the fix for the above issue, but just a band
aid to prevent it exploding upon the user?
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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