UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36
Platform: 70.4.39 (Developer Build - neverware) developer-build chromeover64

Steps to reproduce the problem:
1. Navigate to chrome://settings on an AMD device
2. Enable Linux (crostini)
3. Observe the setup process fail with "unable to start VM"

What is the expected behavior?
The setup process should complete successfully and add a Terminal icon in the app drawer that launches a Linux terminal when executed.

What went wrong?
The setup process fails with something along the lines of "unable to mount Linux files" or "unable to start VM", despite multiple tries and reboots. Furthermore, the app icon displays a spinning circle above the Terminal icon placed on the taskbar when executed. This CPU has AMD's virtualization technology supported. Hence, the "svm" cpuinfo flag.

Did this work before? No 

Chrome version: 70.0.3538.124  Channel: stable
OS Version: 70.4.39
Flash Version: 20181205.1.999.999

Although there are not currently any Chromebooks with AMD processors, these new Chromium OS developments should be ported to AMD-based hosts as well as Intel.