On 7/13/22 19:01, Tudor.Ambarus@xxxxxxxxxxxxx wrote: > EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe > > Hi, Peter, > > Thanks for the patience. I was still out of office last week, > but now I have some news. > > On 6/27/22 19:53, Tudor.Ambarus@xxxxxxxxxxxxx wrote: >> I think these are the last less invasive >> changes that I try, I'll have to rewrite the logic anyway. > > I've chopped the driver to use virt-dma (check [1]). It's not clean, but > it works and one can see how the logic is changed. Unfortunately the mem > corruption is still present on high loads. Maybe it's a coherency problem. > I need more time on it. Will get back to you. > > Cheers, > ta > > [1] To github.com:ambarus/linux-0day.git > a7351e6f4c12..1557e0df0fd0 at-hdmac-virt-dma -> at-hdmac-virt-dma Hi, Peter, Does this [1] one line patch solve the mem corruption on your side? Even if yes, there are still bugs in at-hdmac that can be squashed by using virt-dma. I'd like to follow up with patches that integrate virt-dma logic in at-hdmac. Cheers, ta [1] https://lore.kernel.org/linux-mtd/20220728074014.145406-1-tudor.ambarus@xxxxxxxxxxxxx/T/#u
