Andi Kleen wrote: > tg3s never use the IOMMU on AMD systems with production kernels > because they have a suitably large DMA mask. IOMMU is only used > there to remap memory that doesn't fit a device's DMA mask. > There is a debugging mode to force iommu always, but it is not used > unless you configure it specially.
We actually have one chip that uses a 32-bit mask, and some that use a 40-bit mask. But you're right, I don't know for a fact whether it was IOMMU or not. The corruption happened on 64-bit chunks and seemed to have gone away after upgrading to the latest kernel, according to the user. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
