On Thu, 2018-12-20 at 15:34 +0100, hch@xxxxxx wrote: > On Thu, Dec 20, 2018 at 02:32:52PM +0000, Eugeniy Paltsev wrote: > > Hi Christoph, > > > > I test kernel from your 'dma-alloc-always-zero' branch, and as > > I can see we have DMA peripherals (like USB) broken. > > I would be really surprised if that is caused by the patch to add > the zeroing. Me too :) > Can you check which commit caused the issue by bisecting > from a known good baseline? Yep. At least kernel build from v4.20-rc4 (which is base for your branch) seems to work fine. -- Eugeniy Paltsev