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Date:      Mon, 26 Nov 2018 10:28:50 -0600
From:      Eric van Gyzen <eric@vangyzen.net>
To:        Pete French <petefrench@ingresso.co.uk>, freebsd-stable@freebsd.org
Subject:   Re: Ryzen issues on FreeBSD ? (with sort of workaround)
Message-ID:  <c9167f02-82cf-327a-0705-ec9b11657f69@vangyzen.net>
In-Reply-To: <0778a0b2-51b6-5c08-b777-cbeff7cae54f@ingresso.co.uk>
References:  <20180705133542.GG5562@kib.kiev.ua> <E1fb4mD-0006j7-SY@dilbert.ingresso.co.uk> <20180705145130.GH5562@kib.kiev.ua> <548b493e-6a51-32ca-b3c1-216cac037e8b@ingresso.co.uk> <20180727130016.GE2394@kib.kiev.ua> <76f693ec-d6f5-4261-ac25-13100f4b2f5f@ingresso.co.uk> <50ae7040-b0c4-4092-c5d0-75ed86ed4845@ingresso.co.uk> <0778a0b2-51b6-5c08-b777-cbeff7cae54f@ingresso.co.uk>

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On 11/26/18 10:25 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:
> 
> 1) Doubling the amount of RAM in it to 16 gig, using RAM which runs a
> bit faster than the original sticks (2667 instead of 2400)
> 
> 2) Upgrading to FreeBSD 12 BET4
> 
> Now, I am really hoping the lockups are down to the RAM and that I just
> need to underclock it a bit, but I am a bit worried by the fact it
> happened the ame time as I went to 12. Has anyone else seen any issues
> under 12 when stable under 11?

My Ryzen has never run 11, but I have never seen a single problem on 12.
 As you suggest, it's probably due to the particular hardware
combination.  If updating the BIOS doesn't help, I agree that lowering
the memory clock is the best next step.

Eric



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