Hi, Pawe?: On 2016?10?10? 17:11, Pawe? Jarosz wrote: > 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" > We try run memtest 800M with Linux kernel 4.8, which killed by OOM. But if we run: # memtester -p 0x9F000000 16K 1 memtester version 4.3.0 (32-bit) Copyright (C) 2001-2012 Charles Cazabon. Licensed under the GNU General Public License version 2 (only). pagesize is 4096 pagesizemask is 0xfffff000 want 0MB (16384 bytes) Loop 1/1: Stuck Address : ok Random Value : ok Compare XOR : ok Compare SUB : ok Compare MUL : ok Compare DIV : ok Compare OR : ok Compare AND : ok Sequential Increment: ok Solid Bits : ok Block Sequential : ok Checkerboard : ok Bit Spread : ok Bit Flip : ok Walking Ones : ok Walking Zeroes : ok 8-bit Writes : ok 16-bit Writes : ok So these memory should be fine to CPU core. Maybe your system just freeze because out of memory.
