Current status of Ryzen (non-)support

Hi everyone,

I wanted to ask what the current status of Ryzen support is and/or
whether any new changes are planned.

My situation:
* second generation Ryzen: 2600X
* running -CURRENT
* I have done the things described here:
https://lists.freebsd.org/pipermail/freebsd-current/2018-June/069799.html
* no full system freezes, but under load, e.g. building with 12 threads,
programs start to segfault.
* memtest86 ran through without issues
* on a Linux dual boot I haven't had any issues

Is this a known problem? Anythings I can do about it? I thought the
Ryzen problem were only supposed to happen with first generation CPUs...

Thanks and regards,
Hannes