On Tue, Sep 18, 2012 at 8:56 PM, Devin Heitmueller <dheitmueller@xxxxxxxxxxxxxx> wrote: >> You can see the original thread where this was found, together with a >> working patch, here: >> >> http://lists.xen.org/archives/html/xen-devel/2012-01/msg01927.html > > As far as I can read, the patch has never been confirmed to work. The > user mentioned upgrading to an updated kernel and seeing a slight > decrease in load: > > http://lists.xen.org/archives/html/xen-devel/2012-01/msg02166.html > > Further, the reason many of the drivers in question require the memory > to be in the 0-4GB memory region is due to some hardware not being > able to DMA to memory > 4GB. Such a change would have to be tested > with every board that does scatter/gather, and the framework would > likely have to change to explicitly allow the board driver to specify > whether it supports memory > 4GB. > > In short, this is a useful bit of information, but not clear whether > it would actually solve the underlying problem. > > Again, I would be happy to be proven wrong, but there appears to still > be quite a bit of work required for such. I would suggest trying the > patch yourself to see if it has any visible effect on the problem. I'm sorry I was not explicit. I have tested it, I have it working right now, flawlessly. It even worked after resuming from S3! -- Javier Marcet <jmarcet@xxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
