From owner-freebsd-stable@freebsd.org Tue Apr 24 14:22:50 2018 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 03B50FA70B5 for ; Tue, 24 Apr 2018 14:22:50 +0000 (UTC) (envelope-from mike@sentex.net) Received: from smarthost2.sentex.ca (smarthost2.sentex.ca [IPv6:2607:f3e0:80:80::2]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "smarthost.sentex.ca", Issuer "smarthost.sentex.ca" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 8AA3870BE0; Tue, 24 Apr 2018 14:22:49 +0000 (UTC) (envelope-from mike@sentex.net) Received: from lava.sentex.ca (lava.sentex.ca [IPv6:2607:f3e0:0:5::11]) by smarthost2.sentex.ca (8.15.2/8.15.2) with ESMTPS id w3OEMmuv017395 (version=TLSv1 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO); Tue, 24 Apr 2018 10:22:49 -0400 (EDT) (envelope-from mike@sentex.net) Received: from [192.168.43.26] (saphire3.sentex.net [192.168.43.26]) by lava.sentex.ca (8.15.2/8.15.2) with ESMTP id w3OEMkJF058913; Tue, 24 Apr 2018 10:22:46 -0400 (EDT) (envelope-from mike@sentex.net) Subject: Re: Ryzen issues on FreeBSD ? (with sort of workaround) To: Pete French , nimrodl@gmail.com Cc: truckman@freebsd.org, eric@vangyzen.net, freebsd-stable@freebsd.org, freebsd@hda3.com, avg@freebsd.org References: <59b435cf-f4fb-0cc8-3bd0-0765ac0592da@sentex.net> <84898b9f-991c-420a-3ebd-f8c4ad9915e1@ingresso.co.uk> From: Mike Tancsa Openpgp: preference=signencrypt Organization: Sentex Communications Message-ID: Date: Tue, 24 Apr 2018 10:22:46 -0400 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: <84898b9f-991c-420a-3ebd-f8c4ad9915e1@ingresso.co.uk> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.78 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Apr 2018 14:22:50 -0000 On 4/24/2018 10:01 AM, Pete French wrote: > > Well, I ranh the iperf tests between real machine for 24 hours and that > worked fine. I also then spun up a Virtualbox with Win10 in it, and ran > iuperf to there at the same time as doing it betwene real machines, and > also did a full virus scan to exercise the disc. the idea being to > replicate Mondays lockup. I was able to lock it up with vbox. bhyve was just a little easier to script and also I figured would be good to get VBox out of the mix in case it was something specific to VBox. I dont recall if I tried it with SMT disabled. Regardless, on Intel based systems I ran these tests for 72hrs straight without issue. I can sort of believe hardware issue or flaky motherboard BIOSes (2 ASUS MBs, 1 MSI MB, 3 Ryzen chips), but the fact that two server class MBs from SuperMicro along with an Epyc chip also does the same thing makes me think something specific to FreeBSD and this class of AMD CPU :( ---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