From owner-freebsd-stable@FreeBSD.ORG Tue Jan 9 17:25:08 2007 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 7583C16A416; Tue, 9 Jan 2007 17:25:08 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from tarsier.geekcn.org (tarsier.geekcn.org [210.51.165.229]) by mx1.freebsd.org (Postfix) with ESMTP id C86D313C478; Tue, 9 Jan 2007 17:25:07 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from localhost (tarsier.geekcn.org [210.51.165.229]) by tarsier.geekcn.org (Postfix) with ESMTP id 545CCEB0D0E; Wed, 10 Jan 2007 01:25:06 +0800 (CST) X-Virus-Scanned: amavisd-new at geekcn.org Received: from tarsier.geekcn.org ([210.51.165.229]) by localhost (mail.geekcn.org [210.51.165.229]) (amavisd-new, port 10024) with ESMTP id KQ4oL0Uiwmfm; Wed, 10 Jan 2007 01:25:01 +0800 (CST) Received: from [192.168.1.32] (unknown [221.216.129.168]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by tarsier.geekcn.org (Postfix) with ESMTP id 0A2D4EB0B16; Wed, 10 Jan 2007 01:25:01 +0800 (CST) DomainKey-Signature: a=rsa-sha1; s=default; d=delphij.net; c=nofws; q=dns; h=message-id:date:from:organization:user-agent:mime-version:to:cc: subject:references:in-reply-to:x-enigmail-version:content-type; b=IrUOzpEkEgZhwx5QNHG/fXzOxj2vYqt5jv99nqtj3619iJMs0rd9Xm9xObcDVV1oi GpE4YuN84QYOdDXc+Ocfg== Message-ID: <45A3CFA1.60606@delphij.net> Date: Wed, 10 Jan 2007 01:23:45 +0800 From: LI Xin Organization: The FreeBSD Project User-Agent: Thunderbird 1.5.0.9 (Macintosh/20061207) MIME-Version: 1.0 To: "Bruce A. Mah" References: <1167247246.96863.23.camel@opus.cse.buffalo.edu> <4593DC34.2030308@atlantis.maniacs.se> <1167320870.52842.20.camel@opus.cse.buffalo.edu> <4593E790.8080509@delphij.net> <45A3BB4E.3@freebsd.org> In-Reply-To: <45A3BB4E.3@freebsd.org> X-Enigmail-Version: 0.94.1.0 Content-Type: multipart/signed; micalg=pgp-ripemd160; protocol="application/pgp-signature"; boundary="------------enig8230295EDD2D234F96411AF0" Cc: peter@holm.cc, Thomas Herrlin , Ken Smith , freebsd-stable@freebsd.org Subject: Re: FreeBSD 6.2-RC2 Available - networking zoneli freeze problem still exist. 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: Tue, 09 Jan 2007 17:25:08 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig8230295EDD2D234F96411AF0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Bruce A. Mah wrote: > If memory serves me right, LI Xin wrote: >> Ken Smith wrote: >>> On Thu, 2006-12-28 at 16:01 +0100, Thomas Herrlin wrote: >>>> It still runs networking daemons into a frozen zoneli state on >>>> heavy/(D)DOS network loads. Such processes cant be kill-9ed so there= is >>>> no way to recover from it. (think frozen sshd and a very remote/head= less >>>> server). >>>> See the stress test panic called 'Ran out of "128 Bucket" >>>> ' on the 6= =2E2 >>>> todo list and my own latest test here: >>>> http://www.maniacs.se/~junics/temp/vmstat-z.txt >>>> This test was on a new 6.2-RC2 install with no zone limit tweaks nor= any >>>> sbsize limits in /etc/login.conf. >>>> I just made a vm disk image with replication instructions, however P= eter >>>> Holm have replicated it with his own tools so i have not bothered wi= th >>>> it until now.=20 >>> That problem is being worked on but won't be fixed for 6.2-REL. >>> Depending on how complex the fix winds up being it may be an Errata >>> candidate when the time comes. >> Perhaps we should mention some known workarounds in the errata >> documentation. E.g. raising nmbclusters limit, etc.? >=20 > That's a good idea. Do you have more specifics (e.g. any particular > nmbclusters value, other workarounds, etc.)? The current workaround is that set the following in /boot/loader.conf: kern.ipc.nmbclusters=3D"0" And reboot; Note that this is not perfect as it can lead to the need of increasing KVA space under certain load. Cheers, --=20 Xin LI http://www.delphij.net/ FreeBSD - The Power to Serve! --------------enig8230295EDD2D234F96411AF0 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFFo8+hOfuToMruuMARA0UVAJ9jkV+OpXH7kVSWUqt0rmcWW15T5gCfWPmW nZOMOXom/Ezaz1XKV3Np0J0= =YQLa -----END PGP SIGNATURE----- --------------enig8230295EDD2D234F96411AF0--