Date: Fri, 27 Jul 2018 09:10:49 -0400 From: Mike Tancsa <mike@sentex.net> To: Pete French <petefrench@ingresso.co.uk>, Konstantin Belousov <kostikbel@gmail.com> Cc: truckman@FreeBSD.org, eric@vangyzen.net, freebsd-stable@freebsd.org, freebsd@hda3.com, avg@freebsd.org Subject: Re: Ryzen issues on FreeBSD ? (with sort of workaround) Message-ID: <a05cc627-6359-6c9f-0f48-3e7b69f7d9e9@sentex.net> In-Reply-To: <548b493e-6a51-32ca-b3c1-216cac037e8b@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>
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On 7/27/2018 7:01 AM, Pete French wrote: > So, I have been running the patched kernel for quiet a while now, and it > works fine for me, but last night I did hit a surprising issue - the > Linux emulator does not work on Ryzen / Epyc. I tried this on two > machines (both with the patches) and it coredumps when simply running > bash on both of them. I copied the OS over to an Intel machine, and that > works fine. > > I have not tried running with an unpatched kernel on the Ryzen machine > (I dont have one to hand) but I did try applying the sysctls to the > Intel box to see if that wuld cause the Linux binaries to crash. It didn't. I havent used the linux emulator in ages. What is the easiest way to try this out ? ---Mike -- ------------------- 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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