From owner-freebsd-stable@FreeBSD.ORG Fri May 20 01:40:51 2005 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id EE01E16A4CE for ; Fri, 20 May 2005 01:40:50 +0000 (GMT) Received: from smtp.speedfactory.net (talon.speedfactory.net [66.23.216.215]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2D88143DB1 for ; Fri, 20 May 2005 01:40:50 +0000 (GMT) (envelope-from ups@tree.com) Received: (qmail 24937 invoked from network); 19 May 2005 21:41:01 +0000 Received: from 66-23-216-49.clients.speedfactory.net (HELO palm.tree.com) (66.23.216.49)SMTP; 19 May 2005 21:41:01 +0000 Received: from [127.0.0.1] (localhost.tree.com [127.0.0.1]) by palm.tree.com (8.12.10/8.12.10) with ESMTP id j4K1empP089619; Thu, 19 May 2005 21:40:48 -0400 (EDT) (envelope-from ups@tree.com) From: Stephan Uphoff To: pallen@donut.ugcs.caltech.edu In-Reply-To: <20050519220000.GE88799@philemon.caltech.edu> References: <20050519220000.GE88799@philemon.caltech.edu> Content-Type: text/plain Message-Id: <1116553248.7597.7403.camel@palm> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Thu, 19 May 2005 21:40:48 -0400 Content-Transfer-Encoding: 7bit cc: stable@freebsd.org Subject: Re: Status of kern/79700, nfs lockups X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 20 May 2005 01:40:51 -0000 On Thu, 2005-05-19 at 18:00, pallen@donut.ugcs.caltech.edu wrote: > I notice that this pr hasn't gotten any attention. > "Suspending process that is actively writing to a file on an > nfs mount causes future access to that file by other > processes to hang until the first process is resumed." > > I didn't care much before, but recently I've started having > enough load on my machines to see this problem as well (and > routinely... i.e., not synthetically). > > Is this something I should expect to live with for a while? > > -Paul Are you sure that kern/79700 describes your problem? ( I don't see how higher load is related to the problem) If it does - mounting the file systems without the "intr" option would be the workaround since it prevents suspension of the threads inside the NFS file system. (More technical details in my answer to kern/79700) Stephan