Ryzen issues on FreeBSD ?

[Don Lewis]

On 22 Jan, Mike Tancsa wrote:
> On 1/22/2018 1:41 PM, Peter Moody wrote:
>> fwiw, I upgraded to 11-STABLE (11.1-STABLE #6 r328223), applied the
>> hw.lower_amd64_sharedpage setting to my loader.conf and got a crash
>> last night following the familiar high load -> idle. this was with SMT
>> re-enabled. no crashdump, so it was the hard crash that I've been
>> getting.
> 
> hw.lower_amd64_sharedpage=1 is the default on AMD boxes no ? I didnt
> need to set mine to 1
> 
>> 
>> shrug, I'm at a loss here.
> 
> I am trying an RMA with AMD.

Something else that you might want to try is 12.0-CURRENT.  There might
be some changes in HEAD that need to be merged back to 11.1-STABLE.