From owner-freebsd-questions@FreeBSD.ORG Thu Mar 18 23:26:54 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 44A8416A4CF for ; Thu, 18 Mar 2004 23:26:54 -0800 (PST) Received: from smtp.mho.com (smtp.mho.net [64.58.4.5]) by mx1.FreeBSD.org (Postfix) with SMTP id 072D143D31 for ; Thu, 18 Mar 2004 23:26:54 -0800 (PST) (envelope-from scottl@freebsd.org) Received: (qmail 28747 invoked by uid 1002); 19 Mar 2004 07:26:53 -0000 Received: from unknown (HELO freebsd.org) (64.58.1.252) by smtp.mho.net with SMTP; 19 Mar 2004 07:26:53 -0000 Message-ID: <405A9FEB.6060209@freebsd.org> Date: Fri, 19 Mar 2004 00:23:23 -0700 From: Scott Long User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.6) Gecko/20040304 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Aaron Wohl References: <8ACA9163-6F29-11D8-8F17-003065A70D30@shire.net> <20040305220055.E42979@pooker.samsco.home> <20040317093148.GN12602@math.jussieu.fr> <1079523587.3785.182830953@webmail.messagingengine.com> In-Reply-To: <1079523587.3785.182830953@webmail.messagingengine.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit cc: freebsd-scsi@freebsd.org cc: shih@math.jussieu.fr cc: "'freebsd-questions@FreeBSD.ORG ORG'" cc: "Chad Leigh -- Shire.Net LLC" Subject: Re: Adaptec 2410SA starts doing this: aac0: COMMAND0xc551a7e8TIMEOUTAFTER 147 SECONDS (Modified by Chad Leigh -- Shire.NetLLC) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Mar 2004 07:26:54 -0000 In between 5.0 and 5.1 I put some serious work into the driver to make it perform better. Unfortunately, I opened up an edge case that would result in a command being lost under extreme load. It was very hard to reproduce locally until I did some more performance work after 5.2. I finally made the driver so fast that I could reproduce the problem with ease, which then allowed me to figure it out. A band-aid went into 5.2.1, and the real fix (hopefully) is in 5.2-CURRENT. Scott Aaron Wohl wrote: > We got command timeout with the aac driver off and on for about a year > with a 5400s and various freebsd versions. Ive been sending Scott the > info and he has tried various fixes. I switched one of the machines to > 5.2.1 a couiple of weeks ago. It been ok so far. Buts sometimes it may > go a month or two then happen a lot so hard to say for sure yet. > > When it has happened to us power cycling and rebooting gets it unwedged > -- reset does not. > > On Wed, 17 Mar 2004 10:31:48 +0100, "Albert Shih" > said: > >> Le 05/03/2004 à 22:05:25-0700, Scott Long a écrit >> >>>On Sun, 29 Feb 2004, Chad Leigh -- Shire.Net LLC wrote: >>> >>>>Now the machine, when it tries to check the two aacd volumes on this >>>>controller, starts printing out this message below every 20 seconds or >>>>so and the disk volumes cannot be used. Each new IO attempt triggers a >>>>new set of these messages. The hex number after the COMMAND word is >>>>different for each new IO request but of course stays the same for >>>>repeated messages relating to the same original IO request >>>> >>>>aac0: COMMAND 0xc551a7e8 TIMEOUT AFTER 147 SECONDS >>>> >>>>I have googled on this and similar posts related to 2120S controllers >>>>all seemed to have different causes and fixes... >>> >>>I thought that 5.2.1 would have fixed all of this. This isn't good. >>> >>> >>>>Any hints or ideas on what is causing this? I can get into the >>>>controller at POST time and it checks out... >>> >>>Can you boot the machine at all? If so, could I feed you some patches to >>>help diagnose the problem? >>> >> >>Long time ago (humm 3 mounths ;-)) ) I've same problem with a Adaptec >>2120S >>on FreeBSD 5.2 >> >>The reconstruction don't work and sometime the machin hang up with same >>kind of message. >> >>I solve the problem (after many time) by to remove the SCSI terminator on >>the array (where I put the hot-plug disk). >> >>Hope this help. >> >>Regards. >> >> >>-- >>Albert SHIH >>Universite de Paris 7 (Denis DIDEROT) >>U.F.R. de Mathematiques. >>Heure local/Local time: >>Wed Mar 17 10:29:24 CET 2004 >>_______________________________________________ >>freebsd-scsi@freebsd.org mailing list >>http://lists.freebsd.org/mailman/listinfo/freebsd-scsi >>To unsubscribe, send any mail to "freebsd-scsi-unsubscribe@freebsd.org" > > >