From owner-freebsd-scsi@FreeBSD.ORG Thu Jan 13 08:05:09 2011 Return-Path: Delivered-To: freebsd-scsi@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 120811065670 for ; Thu, 13 Jan 2011 08:05:09 +0000 (UTC) (envelope-from mavbsd@gmail.com) Received: from mail-fx0-f54.google.com (mail-fx0-f54.google.com [209.85.161.54]) by mx1.freebsd.org (Postfix) with ESMTP id 8F9BF8FC12 for ; Thu, 13 Jan 2011 08:05:08 +0000 (UTC) Received: by fxm16 with SMTP id 16so1485940fxm.13 for ; Thu, 13 Jan 2011 00:05:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:sender:message-id:date:from:user-agent :mime-version:to:cc:subject:references:in-reply-to :x-enigmail-version:content-type:content-transfer-encoding; bh=LUXMpZHqUV9pS/9eaejkrFwXpabY/LZhM2fcOBq76eY=; b=SVG3+5hEG7c5TYNTxJk3bKJOo0jsVFedjNZFq9iumXzfzXySY9ARFU0FWv7SfO+cTp eDneZ1E1Qinu/RH+RMNOoD+oay4ThkRgV61pvxKvL9izyfoWSCFOhZossZVeMI0eACam AUiQjFabdPqDLcwF7ltIk56TbJVoNpOh7glx0= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=sender:message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:x-enigmail-version:content-type :content-transfer-encoding; b=hs0kqWy7eDu+Qmx+cd/mmAkTS3LeqLQ6JBdEubrFgbOMbptnO1qkTEq3kkPh/4nGox uzUjxEWLjOrZRXBSm0UUhiROqsRRB+nbmHSi7uqT5u4rv4QHsOsrEwXgq8OMpqaE4Rxm NZLRnHZwMbCXC07slpcJ3sLZtvJlWgQdNsyY4= Received: by 10.223.97.8 with SMTP id j8mr2007688fan.141.1294905907481; Thu, 13 Jan 2011 00:05:07 -0800 (PST) Received: from mavbook2.mavhome.dp.ua (pc.mavhome.dp.ua [212.86.226.226]) by mx.google.com with ESMTPS id b7sm516971faa.18.2011.01.13.00.05.04 (version=SSLv3 cipher=RC4-MD5); Thu, 13 Jan 2011 00:05:05 -0800 (PST) Sender: Alexander Motin Message-ID: <4D2EB210.1050103@FreeBSD.org> Date: Thu, 13 Jan 2011 10:04:32 +0200 From: Alexander Motin User-Agent: Thunderbird 2.0.0.23 (X11/20091212) MIME-Version: 1.0 To: Joachim Tingvold References: <4D2DAA45.30602@FreeBSD.org> In-Reply-To: X-Enigmail-Version: 0.96.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-scsi@FreeBSD.org Subject: Re: mps0-troubles X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 13 Jan 2011 08:05:09 -0000 Joachim Tingvold wrote: > On Wed, Jan 12, 2011, at 14:19:01PM GMT+01:00, Alexander Motin wrote: >> dmesg you've shown shown many command timeouts on multiple devices. As >> soon as default ATA timeout is about 30 seconds - it may cause >> significant delays before recovery sequence will manage it. That could >> result in delays you observed. > > I let the computer stay on for about 7-8 hours after I sent my previous > email, and it was still frozen. I had to physically reset the computer > to get it operational again. > >> What's more suspicious is that timeouts happened same time on >> AHCI-attached disk and several disks on mps controller. I can hardly >> assume that two completely different controllers and drivers triggered >> some unrelated problems simultaneously. > > If I were copying from the AHCI-attached disk to the mps controller, and > the AHCI-attached disk timeouts, wouldn't this cause the disks on the > mps controller to timeout as well? No. Timeout means that disk doesn't respond to request. If you just stuck on AHCI disk -- mps disks should be just idle. -- Alexander Motin