From owner-freebsd-stable@FreeBSD.ORG Sat Dec 22 07:15:17 2007 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 C055C16A41B; Sat, 22 Dec 2007 07:15:17 +0000 (UTC) (envelope-from dg@dglawrence.com) Received: from dglawrence.com (static-72-90-113-2.ptldor.fios.verizon.net [72.90.113.2]) by mx1.freebsd.org (Postfix) with ESMTP id 97BCE13C461; Sat, 22 Dec 2007 07:15:17 +0000 (UTC) (envelope-from dg@dglawrence.com) Received: from tnn.dglawrence.com (localhost [127.0.0.1]) by dglawrence.com (8.14.1/8.14.1) with ESMTP id lBM7FHrJ033326; Fri, 21 Dec 2007 23:15:17 -0800 (PST) (envelope-from dg@dglawrence.com) Received: (from dg@localhost) by tnn.dglawrence.com (8.14.1/8.14.1/Submit) id lBM7FH0c033325; Fri, 21 Dec 2007 23:15:17 -0800 (PST) (envelope-from dg@dglawrence.com) X-Authentication-Warning: tnn.dglawrence.com: dg set sender to dg@dglawrence.com using -f Date: Fri, 21 Dec 2007 23:15:17 -0800 From: David G Lawrence To: Kostik Belousov Message-ID: <20071222071517.GV25053@tnn.dglawrence.com> References: <20071220011626.U928@besplex.bde.org> <814DB7A9-E64F-4BCA-A502-AB5A6E0297D3@eng.oar.net> <20071219171331.GH25053@tnn.dglawrence.com> <20071221200810.GY16982@elvis.mu.org> <20071221234347.GS25053@tnn.dglawrence.com> <6D374B4C-0D98-4916-A762-7A85912B3058@splintered.net> <20071222053648.GQ57756@deviant.kiev.zoral.com.ua> <3647BB78-BA10-432B-A52B-04E402E155CC@splintered.net> <20071222070318.GT57756@deviant.kiev.zoral.com.ua> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20071222070318.GT57756@deviant.kiev.zoral.com.ua> X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.0 (dglawrence.com [127.0.0.1]); Fri, 21 Dec 2007 23:15:17 -0800 (PST) Cc: Mark Fullmer , freebsd-stable@freebsd.org, freebsd-net@freebsd.org Subject: Re: Packet loss every 30.999 seconds 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, 22 Dec 2007 07:15:17 -0000 > As Bruce Evans noted, there is a vfs_msync() that do almost the same > traversal of the vnodes. It was missed in the previous patch. Try this one. I forgot to comment on that when Bruce pointed that out. My solution has been to comment out the call to vfs_msync. :-) It comes into play when you have files modified through the mmap interface (kind of rare on most systems). Obviously I have mixed feelings about vfs_msync, but I'm not suggesting here that we should get rid of it as any sort of solution. -DG David G. Lawrence President Download Technologies, Inc. - http://www.downloadtech.com - (866) 399 8500 The FreeBSD Project - http://www.freebsd.org Pave the road of life with opportunities.