Ryzen issues on FreeBSD ? (with sort of workaround)

[Mike Tancsa]

On 6/14/2018 6:30 AM, Pete French wrote:
>> Check out this thread on current. I re-ran the tests I did in Feb to
>> lockup the Ryzen box, and they are ok now with the latest micro code
>> updates from AMD.  I will let the tests run a good 48hrs, but in the
>> past it would only take 5-10 min to cause a hard lockup
>>
>> https://lists.freebsd.org/pipermail/freebsd-current/2018-June/069799.html
> 
> Ah, excellent, tanksf for the pinter. I was already running the latest
> microcode, but have also now flashed my BIOS and applied the shell
> script fixes from that thread. Will try running with SMT re-enabled
> next week, as I need the machine not to lockup the next few days
> when I am not in the office, but it looks very promising.

FYI, both my Epyc and Ryzen system have been running 2+ days with the
tests that would normally hard lock the system in 5-60 min. The combo of
Microcode updates and system settings

https://lists.freebsd.org/pipermail/freebsd-current/2018-June/069799.html

seem to have fixed the last issue I was seeing

	---Mike

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Mike Tancsa, tel +1 519 651 3400 x203
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