From owner-freebsd-scsi@FreeBSD.ORG Thu Jan 20 09:38:58 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 CB2C9106564A for ; Thu, 20 Jan 2011 09:38:58 +0000 (UTC) (envelope-from mavbsd@gmail.com) Received: from mail-bw0-f54.google.com (mail-bw0-f54.google.com [209.85.214.54]) by mx1.freebsd.org (Postfix) with ESMTP id 1FC328FC14 for ; Thu, 20 Jan 2011 09:38:57 +0000 (UTC) Received: by bwz12 with SMTP id 12so350842bwz.13 for ; Thu, 20 Jan 2011 01:38:57 -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=o2sT0t3jPIWaqaF3wsSzm/N28+wN9hV+L79VdfsyxQk=; b=IGkat2nM47o3BW4ZCTRnqSDWFFhLze8ZU0809dgS5n3g2UWfc8eT2s+1OFSZLHeEAy OqEla/6/P1xvr8S6Uxz42gz4DnUiX6P86hNAkVu5Pv4WEWVNhTEhP96Y6l08c3lL/EIw GxBUJsFYSvN3sJdG0XwYKlPNBI5DzDiihNkNU= 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=LTI9W7Ob/4BhI60M8nW7CxxsuJp33Xcrt5rgN3IO45vNXWhN4085Duc49ZSnOtwFba nfNXwz7H2AHODaHjoKaWoOnY/2x07toKZzD1p6TSd5iBTBKe9hgzUv3Hj0G1pXNgpxpz oAeUuAmNZRPBupZl2DWO9v/gSxG+F5G73f5aA= Received: by 10.204.119.133 with SMTP id z5mr1652827bkq.72.1295516335134; Thu, 20 Jan 2011 01:38:55 -0800 (PST) Received: from mavbook2.mavhome.dp.ua (pc.mavhome.dp.ua [212.86.226.226]) by mx.google.com with ESMTPS id 12sm3775342bki.19.2011.01.20.01.38.52 (version=SSLv3 cipher=RC4-MD5); Thu, 20 Jan 2011 01:38:53 -0800 (PST) Sender: Alexander Motin Message-ID: <4D38027F.8080505@FreeBSD.org> Date: Thu, 20 Jan 2011 11:38:07 +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> <41C64262-4300-4187-B5FD-04A5EFB7F87C@tingvold.com> <20110113203750.GA39494@nargothrond.kdm.org> <20110114001758.GA12793@nargothrond.kdm.org> <07392102-4584-4690-9188-5202728CC7CA@tingvold.com> In-Reply-To: <07392102-4584-4690-9188-5202728CC7CA@tingvold.com> X-Enigmail-Version: 0.96.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-scsi@freebsd.org, "Kenneth D. Merry" 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, 20 Jan 2011 09:38:58 -0000 Joachim Tingvold wrote: > On Fri, Jan 14, 2011, at 01:38:27AM GMT+01:00, Joachim Tingvold wrote: >>> I don't think so. If anything, I think that this is likely triggered by >>> a large number of outstanding commands, or perhaps a leak somewhere. If >>> it's the former, hopefully this will fix it. If it's the latter, you'll >>> eventually run into the problem again. >> >> Okay. I've changed the value. I'll keep you posted. > > Some more errors; > . Same as > earlier, but without the "out of chain"-messages (probably just because > I increased the number, so that this specific error-message isn't > printed?). > > This happened without direct user-interaction (it's a cron-job that > copies files from 'zroot' to 'storage', and deletes some stuff on > 'zroot' afterwards). However, it seems as if I can access the > files/folders on 'storage' without the terminal freezing (based on the > log-messages, I was able to pinpoint the last 2-3 copied folders, and > those I could list/copy files from without the terminal freezing). I'm > not sure why, though. Maybe because the error/crash occurred when no > files where being copied/moved? I would say because error recovery now managed to what it should. If problem causing timeouts is not permanent, CAM should correctly recover from them, and system should work further just with some delays for recovery. In any case processes should not freeze forever as they did -- they should either work (even if slow) or terminate with I/O errors. -- Alexander Motin