On Mon, Aug 26, 2019 at 4:33 PM Christoph Hellwig <hch@xxxxxx> wrote: > > 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? Right. > > Does the device use a device-private CMA area? Not sure. My driver is drivers/mmc/host/sdhci-cadence.c It reuses routines in drivers/mmc/host/sdhci.c > Does it work with Linux > 5.2 if CONFIG_DMA_CMA is disabled? No. 5.2 + disable CONFIG_DMA_CMA failed in the same way. -- Best Regards Masahiro Yamada
