I am in much the same situation as you (want to deploy Epyc, waiting for SM stuff to become available). I currently have here a set of parts to make a test Ryzen box, so you are ahead of me on that though. Should have that gong this week I hope.

Are you running the latest STABLE ? There were some patches for Ryzen which went in I belive, and might affect te stability. Specificly the chnages to stop it locking up when executing code in the top page ?

I'll get back to you when I have done some more testing...

-pete.

On 17/01/2018 13:38, Mike Tancsa wrote:
With the Intel issues exposed in meltdown, we were looking at possibly
deploying some Ryzen based servers for FreeBSD.  We got a pair of
ASUS PRIME X370-PRO and

CPU: AMD Ryzen 5 1600X Six-Core Processor            (3593.34-MHz
K8-class CPU)
   Origin="AuthenticAMD"  Id=0x800f11  Family=0x17  Model=0x1  Stepping=1

Everything is at its default in the BIOS, no overclocking etc.

However, we are seeing random lockups on both boxes. It doesnt seem to
correspond with load/activity.  And its a hard lockup.  Keyboard not
responsive and I cant break to serial debugger, so it doesnt seem to be
an issue with something in the kernel going into deadlock.

It sort of feels like a hardware issue, but it seems odd that both boxes
are showing the same issue with random lockups like that.  It could be
twice in a day or once every 3 days.

Anyone have any insights ?  Anyone have any suggestions about better
motherboards out there ? We are waiting for Supermicro's Epyc
availability, but nothing yet.  It would be nice if we could find a
board with at least some hardware watchdog on it.


        ---Mike

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