Date: Fri, 20 Apr 2018 09:38:31 -0400 From: Mike Tancsa <mike@sentex.net> To: Nimrod Levy <nimrodl@gmail.com>, Pete French <petefrench@ingresso.co.uk> Cc: truckman@freebsd.org, eric@vangyzen.net, freebsd-stable@freebsd.org, avg@freebsd.org, freebsd@hda3.com Subject: Re: Ryzen issues on FreeBSD ? (with sort of workaround) Message-ID: <f2ca27c2-c883-4fcb-623e-b5e76d1f34a1@sentex.net> In-Reply-To: <CAMgUhppSsuHghkPuC0GY%2BuCaXZBg54HJ5tGLxGkY_wyiuGnhkQ@mail.gmail.com> References: <a9eef511-6478-b373-590e-086029b4f97b@vangyzen.net> <E1f9U0O-0002Bl-O7@dilbert.ingresso.co.uk> <CAMgUhpqaVBnD=uKwoTCB5OBGDofU3CQRdDWy=v4OJ_Ydbaqe1w@mail.gmail.com> <70328375-165e-6ba4-8c21-03acd6ae8933@ingresso.co.uk> <CAMgUhppSsuHghkPuC0GY%2BuCaXZBg54HJ5tGLxGkY_wyiuGnhkQ@mail.gmail.com>
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Its not just the Ryzen, I can lock up Epyc CPUs as well. They take a bit longer, but its not that hard to repeat. Unfortunately, I had to allocate this hardware over the Linux where it works reliably under all workloads without any such lock ups with all the default BIOS settings :( Here is a test case. https://lists.freebsd.org/pipermail/freebsd-stable/2018-February/088433.html Peter was able to recreate it as well. https://lists.freebsd.org/pipermail/freebsd-virtualization/2018-March/006187.html I dont think its VM / virtualization per se. I think Peter mentioned something about IPIs ---Mike On 4/20/2018 8:39 AM, Nimrod Levy wrote: > To be honest, I can't remember for certain what's set in the BIOS right > now. The last post I made was from 3/17 and it says I have the memory clock > lowered and c-states disabled. I don't think I've changed anything but the > build of stable since then. > > -- > Nimrod > > On Fri, Apr 20, 2018 at 7:55 AM Pete French <petefrench@ingresso.co.uk> > wrote: > >> >> >> On 20/04/2018 12:48, Nimrod Levy wrote: >>> I'm really glad to see that I'm not the only one still interested in >>> this thread. I don't really have anything new to contribute. I've been >>> getting about a week or so uptime out of my box. My habit has been to >>> see if it hangs, then reboot and rebuild latest stable and reboot and >>> run that for a while. Although now that this thread pops back up, I just >>> realized it's been 2 weeks since the last cycle. I don't trust it yet, >>> but I've seen clear improvement since this started. >> >> What setting sdo you have - just the ones I listed or some in the BSD >> setup itself ? I am surprised that the operson who said they were >> getting an actual Epyc server hasn't commented again on the thread. >> Hopefully that means it works fine on the server hardware :-) >> >> I have seen a few commits go through in STABLE related to VM which >> interest me, and which might cause hangs, so we shall see how it goes. >> Possibly looking at the Ryzen issue has flushed out a few VM problems >> anyway, which would be good, as more stbaility is always good (and I >> have a vague hope it might fix the mysetrious Go hangs too). >> >> -pete. >> -- ------------------- Mike Tancsa, tel +1 519 651 3400 x203 Sentex Communications, mike@sentex.net Providing Internet services since 1994 www.sentex.net Cambridge, Ontario Canada
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