From owner-freebsd-stable@FreeBSD.ORG Thu Jan 31 01:16:55 2008 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 23AE816A41A; Thu, 31 Jan 2008 01:16:55 +0000 (UTC) (envelope-from prvs=1916be8aae=killing@multiplay.co.uk) Received: from mail1.multiplay.co.uk (core6.multiplay.co.uk [85.236.96.23]) by mx1.freebsd.org (Postfix) with ESMTP id 7768B13C461; Thu, 31 Jan 2008 01:16:54 +0000 (UTC) (envelope-from prvs=1916be8aae=killing@multiplay.co.uk) DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=multiplay.co.uk; s=Multiplay; t=1201741447; x=1202346247; q=dns/txt; h=Received: Message-ID:From:To:Cc:References:Subject:Date:MIME-Version: Content-Type:Content-Transfer-Encoding; bh=PKIMFOh9AtXOFOmaijSIk rijwcc3Q8NW2G3zlbUEkVs=; b=hy0UjjbRBVuB0j70de3AuMT8mh0B2DPIAP9ZR kQLAetq50H2tD+XyJ0wDOZpNC+54ylT7XnNFC4fUGNjN+vq383ZYKyIzv1Jc4HRx 0+Gf/dEB/HF5jKUeQfXWtsTH2ynjyP3CPYCD+4i4LAUDMvy3KRh0RjSIO8jJetGi MaTNAs= X-Spam-Checker-Version: SpamAssassin 3.1.8 (2007-02-13) on mail1.multiplay.co.uk X-Spam-Level: X-Spam-Status: No, score=-14.7 required=6.0 tests=BAYES_00, USER_IN_WHITELIST, USER_IN_WHITELIST_TO autolearn=ham version=3.1.8 Received: from r2d2 by mail1.multiplay.co.uk (MDaemon PRO v9.6.3) with ESMTP id md50004963360.msg; Thu, 31 Jan 2008 01:04:05 +0000 Message-ID: <013201c863a5$2a91a1c0$b6db87d4@multiplay.co.uk> From: "Steven Hartland" To: "Dieter" References: <200801302307.XAA22476@sopwith.solgatos.com> Date: Thu, 31 Jan 2008 01:04:00 -0000 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="Windows-1252"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 X-Authenticated-Sender: Killing@multiplay.co.uk X-MDRemoteIP: 212.135.219.182 X-Return-Path: prvs=1916be8aae=killing@multiplay.co.uk X-Envelope-From: killing@multiplay.co.uk X-Spam-Processed: mail1.multiplay.co.uk, Thu, 31 Jan 2008 01:04:06 +0000 X-MDAV-Processed: mail1.multiplay.co.uk, Thu, 31 Jan 2008 01:04:07 +0000 Cc: freebsd-performance@freebsd.org, freebsd-stable@freebsd.org Subject: Re: newfs locks entire machine for 20seconds 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: Thu, 31 Jan 2008 01:16:55 -0000 ----- Original Message ----- From: "Dieter" > What *exactly* do you mean by > >> machine still locks up with no activity for anywhere from 20 to 30 seconds. > > Is there disk activity? (e.g. activity light(s) flashing if you have them) Cant tell if there is disk activity its in a DC miles away ;) > Does top continue to update the screen during the 20-30 seconds? > > I'm thinking that newfs has queued up a bunch of disk i/o, and other > disk i/o gets locked out, but activities that don't require any disk i/o > (like top, once it is up and running) could continue. Is that what is > happening? No all sessions totally freeze. I have top set to 1 second refreshes and the clock literally stops and then 20-30 seconds later continues. All sessions are via ssh not X if that's of interest. I could understand if IO to disk for other processes became slow but everything including things like top just stop which is quite odd and concerning. Regards Steve ================================================ This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. In the event of misdirection, the recipient is prohibited from using, copying, printing or otherwise disseminating it or any information contained in it. In the event of misdirection, illegible or incomplete transmission please telephone +44 845 868 1337 or return the E.mail to postmaster@multiplay.co.uk.