On Sun, Jun 25, 2006 at 05:22:23PM +0200, Andi Kleen wrote: > > Older aacraid hardware cannot address the 3-4GB range where the iommu > > remaps pages. As the PCI DMA implementation for the x86-64 is flawed and > > doesn't support any nice way to deal with this via swiotlb instead the > > driver handles it internally. > > Then you should just force a low bounce pfn < 0xfffffff for the block device - > then the block layer should use GFP_DMA bouncing. >From a tiny 16MB DMA pool that can't sustain the required load ? Or has that bit changed. Alan - : send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
