From owner-freebsd-stable@FreeBSD.ORG Mon Feb 21 03:39:17 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0B2191065670 for ; Mon, 21 Feb 2011 03:39:17 +0000 (UTC) (envelope-from greg@bonett.org) Received: from bonett.org (bonett.org [66.249.7.150]) by mx1.freebsd.org (Postfix) with ESMTP id D43148FC12 for ; Mon, 21 Feb 2011 03:39:16 +0000 (UTC) Received: from [192.168.1.216] (unknown [76.91.19.169]) by bonett.org (Postfix) with ESMTPSA id E9317124495; Mon, 21 Feb 2011 03:39:14 +0000 (UTC) From: Greg Bonett To: Jeremy Chadwick In-Reply-To: <20110212041815.GA19226@icarus.home.lan> References: <20110207045501.GA15568@icarus.home.lan> <1297065041.754.12.camel@ubuntu> <20110207085537.GA20545@icarus.home.lan> <1297143276.9417.400.camel@ubuntu> <20110208055239.GA2557@icarus.home.lan> <1297145806.9417.413.camel@ubuntu> <20110208064633.GA3367@icarus.home.lan> <1297235241.4729.35.camel@ubuntu> <20110209092858.GA35033@icarus.home.lan> <1297481067.16594.39.camel@ubuntu> <20110212041815.GA19226@icarus.home.lan> Content-Type: text/plain; charset="UTF-8" Date: Sun, 20 Feb 2011 19:39:12 -0800 Message-ID: <1298259552.13980.19.camel@ubuntu> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Content-Transfer-Encoding: 7bit Cc: freebsd-stable@freebsd.org Subject: Re: 8.1 amd64 lockup (maybe zfs or disk related) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Feb 2011 03:39:17 -0000 > If the eSATA port is on the motherboard backplane (e.g. a port that's > soldered to the motherboard), then you're fine. Be aware that the eSATA > port may be connected to the JMicron controller, however, which I've > already said is of questionable quality to begin with. :-) I wanted to send a follow up email to let you know it appears the problem is solved. I believe the source of the problem was the JMicron controller as was suggested (and it was connected to my eSATA port). I installed a Silicon Image controller and stopped using the eSATA port. I still need the JMicron controller for my root device (it handles the IDE disks) but that drive sees very little IO and so far there have been no lockups. Also, now that I'm using the Silicon Image controller I don't get any "READ_DMA" errors on any disks. I was able to complete two (for good measure) zpool scrubs with other sustained high load tasks and all 6 CPU cores enabled. No disk errors, no lockups. It appears all is well. Thanks for the help. -Greg