On 25/11/2016 12:57, Måns Rullgård wrote: > The same DMA unit is also used for SATA, which is an off the shelf > Designware controller with an in-kernel driver. This interrupt timing > glitch can actually explain some intermittent errors I've observed with > it.
FWIW, newer chips embed an AHCI controller, with a dedicated memory channel. FWIW2, the HW dev said memory channels are "almost free", and he would have no problem giving each device their own private channel read/write pair. Regards.
