On Wed, Dec 13, 2006 at 01:29:25PM -0700, Erik Andersen wrote: > On Mon Dec 11, 2006 at 10:24:02AM +0100, Karsten Weiss wrote: > > We could not reproduce the data corruption anymore if we boot > > the machines with the kernel parameter "iommu=soft" i.e. if we > > use software bounce buffering instead of the hw-iommu. > > I just realized that booting with "iommu=soft" makes my pcHDTV > HD5500 DVB cards not work. Time to go back to disabling the > memhole and losing 1 GB. :-(
That points to a bug in the driver (likely) or swiotlb (unlikely), as the IOMMU in use should be transparent to the driver. Which driver is it? Cheers, Muli - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
