Disabling C6 with zenstates.py has worked so far for me (6 hours without a freeze vs a freeze every one to two hours).
Ryzen 1800x (I haven't checked what week) Ubuntu 16.04 LTS 4.11.0-kfd-compute-rocm-rel-1.6-180 Gigabyte AX370 - Gaming 5 BIOS version F8 (default params) MSI Radeon RX 580 amdgpu-pro version 17.40-492261
Disabling C6 with zenstates.py has worked so far for me (6 hours without a freeze vs a freeze every one to two hours).
Ryzen 1800x (I haven't checked what week) kfd-compute- rocm-rel- 1.6-180
Ubuntu 16.04 LTS 4.11.0-
Gigabyte AX370 - Gaming 5 BIOS version F8 (default params)
MSI Radeon RX 580
amdgpu-pro version 17.40-492261