On Mon, 2018-08-27 at 20:15 +0200, Christian Zigotzky wrote: > Hello, > > Our users tested the RC1 of kernel 4.19 on their P5020 boards today. > Unfortunately the USB bug still exists. With mem values bigger than 4096M, > the USB mouse and keyboard doesn’t work. With the bootarg mem=4096M, the USB > devices work without any problems. Please compile the RC1 and test it on > your P5020 board. There is a problem with the memory management since > 22/08/18.
I just tested 4.19-rc1 on a T4240 and got a similar problem with MMC. MMC and USB on these chips both have a 32-bit DMA limitation. I'll look into it. -Scott