Ryzen issues on FreeBSD ? (with sort of workaround)

[Nimrod Levy]

For my case, it's been a while since I fiddled with any thing. From memory,
the last time I worked on this, I updated to the latest BIOS on the Asus
prime b350+ leaving the settings we've talked about here at stock
(c-states, memory clock, etc...), updated to 11-stable, and let things run
for a while. This time around, I'm up for almost 3 weeks which is about
what I've been getting, so I'm looking for a lockup soon.

I think the last lockup I saw was a little different from before. In the
past, the console went blank and unresponsive with the monitor showing no
signal from the computer. The last time, the screen showed the normal
output with a login prompt, but was otherwise unresponsive both on the
console and from the network.


On Sun, Jun 3, 2018 at 9:49 AM Mike Tancsa <mike at sentex.net> wrote:

> On 6/2/2018 7:48 PM, Don Lewis wrote:
> > On  2 Jun, Pete French wrote:
> >> So,I notice that
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=225584 was
> >> closes as fixed. I cant remember if there was another bug report for
> ongoing
> >> Ryzen issues at all - I have been experimenting and have re-enabled
> most of
> >> the BIOS setting and tweaks fne, but I still need SMP disbled or it
> >> locks up. Havent tried for a week or so with that, and maybe some
> >> of the latest chnages in STABLE will help. is this fixed for
> >> everyone else, or are you all stll running with SMP off ?
> >
> > With that bug fix, I get pretty much the same behavior on my Ryzen
> > machine as on my AMD FX-8320E.  BIOS settings are pretty much the just
> > the defaults.  I'm running 12.0-CURRENT, so I can't really comment on
> > 11-STABLE.
>
> The compile bug has been fixed for me.  However, last I checked I can
> still freeze a system by generating a lot of network traffic between VMs
> in either bhyve or virtbox.  Its been a while since I tested (couple of
> months) but I dont recall anything obviously committed that highlighted
> that issue.  Note this is on Epyc and Ryzen boxes
>
>         ---Mike
>
>
> --
> -------------------
> Mike Tancsa, tel +1 519 651 3400 x203
> Sentex Communications, mike at sentex.net
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