Hello Scott On 27/08/2018, Scott Wood wrote: > 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.
I've run a bisect locally on my system and found the following bad commit: # first bad commit: [1b1eeca7e4c19fa76d409d4c7b338dba21f2df45] init: allow initcall tables to be emitted using relative references I can't see why this would fail though, and it only seems to affect fsl machines, and on mine it killed the onboard sata as well. Hope this helps. Regards Darren