Re: Corruption in glxgears with Compiz

[Alexey Fisher <bug-track@fisher-privat.net>]

Am Samstag, den 23.10.2010, 05:07 +0100 schrieb Peter Clifton:
> On Sat, 2010-10-23 at 04:35 +0100, Peter Clifton wrote:
> 
> > Lost of bisecting and backporting later.. and I've identified the bad
> > commit:
> > 
> > 9220434a8768902cd9cf248709972678b74aa8c1 drm/i915: Only emit a flush
> > request on the active ring.
> 
> A minimal fix is this:
> 
> commit 78342e8fd01614ac0507db1f9c3e0522f4da3c14
> Author: Peter Clifton <pcjc2@cam.ac.uk>
> Date:   Sat Oct 23 04:00:21 2010 +0100
> 
>     Attempted fix
> 
> diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
> index 9290f02..868a399 100644
> --- a/drivers/gpu/drm/i915/i915_gem.c
> +++ b/drivers/gpu/drm/i915/i915_gem.c
> @@ -3759,7 +3759,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
>          */
>         dev->invalidate_domains = 0;
>         dev->flush_domains = 0;
> -       dev_priv->mm.flush_rings = 0;
> +       dev_priv->mm.flush_rings = ring->id;
>  
>         for (i = 0; i < args->buffer_count; i++) {
>                 struct drm_gem_object *obj = object_list[i];
> 
> 
> 
> 

Can only add here, me too.  This patch fix it on my board too.