Mark Hounschell wrote: > We have no problem with this same configuration using a MB with an > nvidia chipset. I suspect it might have something to do with the the MB > that usines the AMD chipset having an IOMMU, but I really don't know for > sure. I've also read something in the AMD chipset docs about some type > of restrictions on peer to peer transfers but again I really have no > idea if this is related to why I'm having this problem. According to the published RS780 docs, "P2P traffic could be only memory writes" (RPR 2.7). In any case, check the P2P bits (MISC is described in BDG 2.4). Regards, Clemens -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
