On Wed, Nov 23, 2011 at 03:03:43PM +0000, David Woodhouse wrote: > On Wed, 2011-11-23 at 15:39 +0100, Daniel Vetter wrote: > > At least for the dmar+gfx+semaphores hang I can reproduce, just disabling > > dmar with intel_iommu=igfx_off is not good enough and iirc the same holds > > for the dmar+rc6 hangs reported. > > Um... let me restate that for clarity (and partly for Rajesh's benefit). > > The DMAR associated with the integrated graphics is *disabled*. > Turned off. Not active. Ever. Hm, that comment confuses me a bit. I've always thought that igfx_off only instantiates a identity mapping and leaves the dmar unit on. Is that wrong? -Daniel -- Daniel Vetter Mail: daniel at ffwll.ch Mobile: +41 (0)79 365 57 48
