Re: [PATCH] drm/i915: Remove nested work in gpu error handling

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On Mon, Feb 02, 2015 at 09:17:14AM +0000, Chris Wilson wrote:
> On Wed, Jan 28, 2015 at 05:03:14PM +0200, Mika Kuoppala wrote:
> > @@ -2616,6 +2612,9 @@ void i915_handle_error(struct drm_device *dev, bool wedged,
> >  	va_list args;
> >  	char error_msg[80];
> >  
> > +	if (WARN_ON(mutex_is_locked(&dev_priv->dev->struct_mutex)))
> > +		return;
> > +
> 
> Oops, sorry, I should have realised this was wrong earlier. The mutex
> breaking occurs later in i915_handle_error.

Oh well, already merged. Also, prts seems to complain that a bunch of
hang stress-tests changed from fail to timeout because of this one here.
Is this patch accidentally fix a bug and we just need to tune the tests,
or is there some new deadlock now? prts results are really thin, per usual
:(

Thanks, Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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