On Thu, 27 Sep 2001, Andrew Gallatin wrote: > No, you're missing the point almost entirely. The checksum is not > skipped. It is calculated by the DMA engine based on the data that's > transferred across the I/O bus on the receiver (and / or the sender). > If the data is incorrect as seen by the receiving nic, the checksum > will be wrong and the packet will be dropped.
you still have a potential problem here with variance in chipsets, namely the case of broken ABORT or other unusual PCI cycle handling (missed word problem). I agree it's a low probability. But we've seen it, just a week or two ago on a brand new box. But then we tend to see things here nobody else sees due to our scale. ron To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
