From owner-freebsd-current@FreeBSD.ORG Fri Jun 9 15:52:40 2006 Return-Path: X-Original-To: current@freebsd.org Delivered-To: freebsd-current@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4092D16A419 for ; Fri, 9 Jun 2006 15:52:40 +0000 (UTC) (envelope-from cbh-freebsd-current@groups.chrishedley.com) Received: from lon-mail-4.gradwell.net (lon-mail-4.gradwell.net [193.111.201.130]) by mx1.FreeBSD.org (Postfix) with ESMTP id 78EF943D72 for ; Fri, 9 Jun 2006 15:52:39 +0000 (GMT) (envelope-from cbh-freebsd-current@groups.chrishedley.com) Received: from 53-233.adsl.zetnet.co.uk ([194.247.53.233] helo=mail.chrishedley.com country=GB ident=postmaster*pop3#chrishedley^com) by lon-mail-4.gradwell.net with esmtpa (Gradwell gwh-smtpd 1.218) id 4489993b.730b.3f9 for current@freebsd.org; Fri, 9 Jun 2006 16:52:27 +0100 (envelope-sender ) Received: from localhost (localhost [127.0.0.1]) by mail.chrishedley.com (Postfix) with ESMTP id 99146C57A for ; Fri, 9 Jun 2006 16:52:26 +0100 (BST) X-Virus-Scanned: amavisd-new at chrishedley.com Received: from mail.chrishedley.com ([127.0.0.1]) by localhost (mail.chrishedley.com [127.0.0.1]) (amavisd-new, port 10024) with LMTP id ua8BHxEPbrXV for ; Fri, 9 Jun 2006 16:52:24 +0100 (BST) Received: from aga.cbhnet (aga.cbhnet [192.168.1.16]) by mail.chrishedley.com (Postfix) with ESMTP id 9CB48C579 for ; Fri, 9 Jun 2006 16:52:24 +0100 (BST) Date: Fri, 9 Jun 2006 16:52:24 +0100 (BST) From: Chris Hedley X-X-Sender: cbh@aga.cbhnet To: current@freebsd.org Message-ID: <20060609163735.D829@aga.cbhnet> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: Subject: aac0: COMMAND 0xffffffffxxxxxxxx TIMEOUT AFTER xx SECONDS X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 09 Jun 2006 15:52:40 -0000 I've been receiving this message quite a lot lately if I put my Adaptec 2410SA aac controller under really heavy load. A quick look at the archives suggests that it used to be a problem a couple of years ago, but was apparently fixed. Personally I've had no bother with it until a few months ago when I upgraded my version of -CURRENT, at which point it started misbehaving. The process which seems pretty much guaranteed to cause it aggravation is Hercules, when I use it to IPL VM/370 the aac filesystems hang (and it eventually brings down ahc and fxp too, with complaints that "interrupts may not be functioning") and stays there until I kill off the process or press the reset button. Any ideas what might've changed to make this problem resurface? I'm also wondering if I might not be better off actually replacing the card with something better, or at least something better suited to FreeBSD: with the discs' and controller's write-caching turned off, the 2410SA is s-l-o-w, about 6MB/s for contiguous writes to an array (either RAID-5 or RAID-10) (benchmarked using the admittedly somewhat crude "dd various block sizes to/from a /dev entry" technique), although reads are acceptable at ~50-60MB/s, if not especially earth-shattering. Any suggestions (for something inexpensive! If money were no object I'd've gone for a SCSI-only system), or might I just as well stick with the 2410SA? Cheers, Chris.