Hi W dniu 10.10.2016 o 09:18, Huang, Tao pisze: > Our IC guy need us tell them which master can not access such area, DMA > or EMMC Controller or GPU, etc? Could you tell me how to reproduce such > issue? > And we can confirm CPU core can access this memory through /dev/mem and > the test board is 1GB too. Personally, I don't think RK3066 has such > limit because when we verify this chip, we don't found such limit at all. > > Thanks, > Huang, Tao I'm getting this on Ubuntu 16.04 with mainline kernel. My board always freezes when i type: "memtester 800M"