From owner-freebsd-stable@FreeBSD.ORG Sat May 15 13:09:45 2010 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 789B01065673 for ; Sat, 15 May 2010 13:09:45 +0000 (UTC) (envelope-from pieter@os3.nl) Received: from mail.thelostparadise.com (router.thelostparadise.com [IPv6:2a02:898:0:30::30:1]) by mx1.freebsd.org (Postfix) with ESMTP id 1EE218FC15 for ; Sat, 15 May 2010 13:09:45 +0000 (UTC) Received: by mail.thelostparadise.com (Postfix, from userid 127) id E829B73054; Sat, 15 May 2010 15:09:43 +0200 (CEST) Received: from localhost by mail.thelostparadise.com (Postfix) with ESMTP id 9D03073008; Sat, 15 May 2010 15:09:41 +0200 (CEST) Message-ID: <4BEE9D13.9060702@os3.nl> Date: Sat, 15 May 2010 15:09:39 +0200 From: Pieter de Boer MIME-Version: 1.0 To: Jeremy Chadwick References: <4BED8B89.6010901@os3.nl> <20100514195346.GA8977@icarus.home.lan> <4BEDBC08.2040002@os3.nl> <20100514224236.GA11680@icarus.home.lan> In-Reply-To: <20100514224236.GA11680@icarus.home.lan> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-stable@freebsd.org Subject: Re: Read / write timeouts on SATA disks connected to ICH9 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: Sat, 15 May 2010 13:09:45 -0000 Hi there, > what kind of disk I/O is going on. If actual I/O is very little, then > something weird is going on with regards to the number of interrupts > being seen on IRQ 23. mav@ might have some ideas, otherwise I'd > recommend rebooting the machine and seeing if the number drops. If so, > it may be that the OS has some sort of bug where a disk timing out or > falling off the bus causes interrupt problems. (It's too bad you don't > have AHCI on this system. It handles stuff like this much more > elegantly...) Well, due to a UFS snapshot panic the box was rebooted, and now I only see around 1500 interrupts per second, while syncing the mirror. -- Pieter