Re: [PATCH v2 2/2] dma-contiguous: Use fallback alloc_pages for single pages

[Christoph Hellwig]

On Mon, Aug 26, 2019 at 11:05:00AM +0900, Masahiro Yamada wrote:
> This is included in v5.3-rc6
> so I tested it.

So there is no allocation failure, but you get I/O errors later?

Does the device use a device-private CMA area?  Does it work with Linux
5.2 if CONFIG_DMA_CMA is disabled?