Ryzen issues on FreeBSD ? (with sort of workaround)

Mike Tancsa mike at sentex.net
Tue Dec 4 15:04:25 UTC 2018

On 11/26/2018 11:30 AM, Mike Tancsa wrote:
> On 11/26/2018 11:25 AM, Pete French wrote:
>> Foolwing up an old thread I know, but my ssystem ahs been pretty
>> stable until recently, when it started locking up about one a week at
>> least. This co-incided with me doing two things to it:
> Interesting, I too have noticed my one test box have the odd lockup.  I
> think it started around the BETA series. Is it possible something
> "undid" one of the fixes ? I brought the box in question upto
> 12.0-PRERELEASE FreeBSD 12.0-PRERELEASE r340724 and its been fine for 5
> days. Sadly, when it was locking up (no panic, just a solid lockup) it
> took some random amount of time and generally did not matter if the box
> was loaded or not.

Well, another lockup. This time after ~ 10 days of uptime. Box was idle
at the time and just a solid freeze. This is an ASUS PRIME X370-PRO
running BIOS from 09/07/2018 (latest).  Not sure if BIOS related or OS
related. I have another motherboard (MSI) that I will install 12.0 on
and see if its any different.  There is also a micro code update from
AMD last week. However, there are no release notes as to what it
changes. I will hold off on that for now and see if I can get lockups on
the MSI in the next week or two.


> -- 
> -------------------
> Mike Tancsa, tel +1 519 651 3400 x203
> Sentex Communications, mike at sentex.net
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> Cambridge, Ontario Canada   

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