From owner-freebsd-net@FreeBSD.ORG Fri Apr 18 10:49:14 2008 Return-Path: Delivered-To: net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 281A5106566B; Fri, 18 Apr 2008 10:49:14 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from tarsier.delphij.net (delphij-pt.tunnel.tserv2.fmt.ipv6.he.net [IPv6:2001:470:1f03:2c9::2]) by mx1.freebsd.org (Postfix) with ESMTP id B33B28FC1A; Fri, 18 Apr 2008 10:49:13 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from tarsier.geekcn.org (tarsier.geekcn.org [202.108.54.204]) (using TLSv1 with cipher ADH-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by tarsier.delphij.net (Postfix) with ESMTPS id 2E19B2844E; Fri, 18 Apr 2008 18:49:09 +0800 (CST) Received: from localhost (tarsier.geekcn.org [202.108.54.204]) by tarsier.geekcn.org (Postfix) with ESMTP id 85CF5EC5F6F; Fri, 18 Apr 2008 18:49:08 +0800 (CST) X-Virus-Scanned: amavisd-new at geekcn.org Received: from tarsier.geekcn.org ([202.108.54.204]) by localhost (mail.geekcn.org [202.108.54.204]) (amavisd-new, port 10024) with ESMTP id oOis-Rwq3vgh; Fri, 18 Apr 2008 18:49:01 +0800 (CST) Received: from charlie.delphij.net (c-69-181-135-56.hsd1.ca.comcast.net [69.181.135.56]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by tarsier.geekcn.org (Postfix) with ESMTPSA id 10EA6EC68B7; Fri, 18 Apr 2008 18:48:58 +0800 (CST) DomainKey-Signature: a=rsa-sha1; s=default; d=delphij.net; c=nofws; q=dns; h=message-id:date:from:reply-to:organization:user-agent: mime-version:to:cc:subject:references:in-reply-to: x-enigmail-version:openpgp:content-type:content-transfer-encoding; b=UuKd9xtrPMzdHfNk9ivx69CizSmRm2I/WieSxNnw6+y6DhBZJeMZzdX1MLttsF9LP x2sDNkbl8fJK64qN679Mw== Message-ID: <48087C98.8060600@delphij.net> Date: Fri, 18 Apr 2008 03:48:56 -0700 From: Xin LI Organization: The FreeBSD Project User-Agent: Thunderbird 2.0.0.12 (X11/20080312) MIME-Version: 1.0 To: gnn@freebsd.org References: In-Reply-To: X-Enigmail-Version: 0.95.6 OpenPGP: id=18EDEBA0; url=http://www.delphij.net/delphij.asc Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: net@freebsd.org Subject: Re: zonelimit issues... X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: d@delphij.net List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 Apr 2008 10:49:14 -0000 Hi, gnn@freebsd.org wrote: > Hi, > > I am wondering why this patch was never committed? > > http://people.freebsd.org/~delphij/misc/patch-zonelimit-workaround As its name said, it's a workaround :) I thought the bug was fixed by several ways, so the old bug resurfaced? > It does seem to address an issue I'm seeing where processes get into > the zonelimit state through the use of mbufs (a high speed UDP packet > receiver) but even after network pressure is reduced/removed the > process never gets out of that state again. Applying the patch fixed > the issue, but I'd like to have some discussion as to the general > merits of the approach. > > Unfortunately the test that currently causes this is tied very tightly > to code at work that I can't share, but I will hopefully be improving > mctest to try to exhibit this behavior. > > Best, > George > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" -- Xin LI http://www.delphij.net/ FreeBSD - The Power to Serve!