Re: ensure dma_alloc_coherent always returns zeroed memory

From: hch@xxxxxx
Date: Thu Dec 20 2018 - 09:46:06 EST

On Thu, Dec 20, 2018 at 02:39:20PM +0000, Eugeniy Paltsev wrote:
> > 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.

Well, the branch has quite a few commits. Can you check the commit
just before the zeroing to start, and if that is already broken (which
I suspect) bisect the offending commit?