[3.9-rc1] irq 16: nobody cared (was [3.9-rc1] very poor interrupt responses)

Greg KH greg at kroah.com
Fri Mar 15 08:32:49 PDT 2013


On Fri, Mar 15, 2013 at 02:33:13PM +0100, Jiri Kosina wrote:
> On Fri, 15 Mar 2013, Harald Arnesen wrote:
> 
> > I have the same problem on my Lenovo T500. I think the graphics card is
> > involved.
> > 
> > This laptop has "hybrid graphics" - one Intel GMA 4500MHD and one ATI
> > Mobility Radeon HD 3650. When I boot with the Intel card, I get "irq 16:
> > nobody cared" during boot, not when I boot with the ATI card.
> 
> Confirming this. After a lot of hassle, I have bisected this reliably to
> 
> 	commit 28c70f162a315bdcfbe0bf940a740ef8bfb918d6
> 	Author: Daniel Vetter <daniel.vetter at ffwll.ch>
> 	Date:   Sat Dec 1 13:53:45 2012 +0100
> 
> 	    drm/i915: use the gmbus irq for waits
> 
> Adding Daniel, Imre and Daniel to CC while I will try to figure out what's 
> happening in parallel.

Wasn't this fixed by the merge from David
(2cc79544bd0aabb4b3cf467ead5df526d9134c64)?  I can't figure out the
exact commit that the merge message referred to though...

greg k-h


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