From owner-freebsd-scsi@freebsd.org Fri Dec 9 14:57:01 2016 Return-Path: Delivered-To: freebsd-scsi@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 1B623C6D48D for ; Fri, 9 Dec 2016 14:57:01 +0000 (UTC) (envelope-from freebsd@omnilan.de) Received: from mx0.gentlemail.de (mx0.gentlemail.de [IPv6:2a00:e10:2800::a130]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id A875D1C7F for ; Fri, 9 Dec 2016 14:57:00 +0000 (UTC) (envelope-from freebsd@omnilan.de) Received: from mh0.gentlemail.de (ezra.dcm1.omnilan.net [IPv6:2a00:e10:2800::a135]) by mx0.gentlemail.de (8.14.5/8.14.5) with ESMTP id uB9Euwac056688; Fri, 9 Dec 2016 15:56:58 +0100 (CET) (envelope-from freebsd@omnilan.de) Received: from titan.inop.mo1.omnilan.net (titan.inop.mo1.omnilan.net [IPv6:2001:a60:f0bb:1::3:1]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mh0.gentlemail.de (Postfix) with ESMTPSA id A817DAF1; Fri, 9 Dec 2016 15:56:58 +0100 (CET) Message-ID: <584AC63A.60301@omnilan.de> Date: Fri, 09 Dec 2016 15:56:58 +0100 From: Harry Schmalzbauer Organization: OmniLAN User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; de-DE; rv:1.9.2.8) Gecko/20100906 Lightning/1.0b2 Thunderbird/3.1.2 MIME-Version: 1.0 To: Steven Hartland CC: freebsd-scsi@freebsd.org Subject: Re: sporadic CAM (all devices) outage on 11-stable, mps(4), ahci(4) and bhyve(8) involved. References: <584ABE6B.8060703@omnilan.de> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (mx0.gentlemail.de [IPv6:2a00:e10:2800::a130]); Fri, 09 Dec 2016 15:56:58 +0100 (CET) X-Milter: Spamilter (Reciever: mx0.gentlemail.de; Sender-ip: ; Sender-helo: mh0.gentlemail.de; ) X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 09 Dec 2016 14:57:01 -0000 Bezüglich Steven Hartland's Nachricht vom 09.12.2016 15:43 (localtime): > Bad memory or CPU? Quiet sure that this can be ruled out. It's a IvyBridge Xeon and ECC memory and neither BMC nor the OS registrerd any MCE. And, the machine is still operational (from cache, true for both, guest and host) until something from disk is needed... The machine doesn't show any problems without heavy bhyve-ahci-load. I'll see if changing ahci, to virtio-blk changes anything. At least for this other still (r309605) present odditiy https://lists.freebsd.org/pipermail/freebsd-stable/2016-October/086157.html it doesn't make a difference, while I found virtio-blk beeing some orders of magnitude faster for unlinking UFS files - most likely due to lacking TRIM supprt. But on bare metal deleting a object tree on a SSD (with enabled TRIM support) doesn't take 10 minutes... Thanks, -Harry