Ryzen issues on FreeBSD ?

[Willem Jan Withagen]

On 21/01/2018 21:24, Don Lewis wrote:
> On 21 Jan, Willem Jan Withagen wrote:
>> On 19/01/2018 23:29, Don Lewis wrote:
>>> On 19 Jan, Pete French wrote:
>>>> Out of interest, is there anyone out there running Ryzen who *hasnt*
>>>> seen lockups ? I'd be curious if there a lot of lurkers thinking "mine
>>>> works fine"
>>>
>>> No hangs or silent reboots here with either my original CPU or warranty
>>> replacement once the shared page fix was in place.
>>
>> Perhaps a too weird reference:
>>
>> I have supplied a customer with a Ryzen5 and a 350MB motherboard.
>> But he runs Windows 10, but I haven't heard him complain about anything
>> like this.
>> But I'll ask him specific.
> 
> Only the BSDs were affected by the shared page issue.  I think Linux
> already had a guard page.  I don't think Windows was affected by the
> idle C-state issue.  I suspect it is caused by software not doing the
> right thing during C-state transitions, but the publicly available
> documentation from AMD is pretty lacking.  The random segfault issue is
> primarily triggered by heavy parallel software build loads and how many
> Windows users do that?

This is an adobe workstation where several users remote login and do 
work. So I would assume that the system is seriously (ab)used.

Adn as expected I'm know aware of any of the detailed things that 
Windows does while powering into lesser active states.

--WjW