From owner-freebsd-alpha@FreeBSD.ORG Tue Nov 4 15:01:02 2003 Return-Path: Delivered-To: freebsd-alpha@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9DAAC16A4CE for ; Tue, 4 Nov 2003 15:01:02 -0800 (PST) Received: from srv1.cosmo-project.de (srv1.cosmo-project.de [213.83.6.106]) by mx1.FreeBSD.org (Postfix) with ESMTP id E98AE43F75 for ; Tue, 4 Nov 2003 15:00:59 -0800 (PST) (envelope-from ticso@cicely12.cicely.de) Received: from cicely5.cicely.de (cicely5.cicely.de [IPv6:3ffe:400:8d0:301:200:92ff:fe9b:20e7]) (authenticated bits=0) hA4N0it2067672 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=OK); Wed, 5 Nov 2003 00:00:49 +0100 (CET) (envelope-from ticso@cicely12.cicely.de) Received: from cicely12.cicely.de (cicely12.cicely.de [IPv6:3ffe:400:8d0:301::12]) by cicely5.cicely.de (8.12.10/8.12.10) with ESMTP id hA4N0f2q068440 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 5 Nov 2003 00:00:41 +0100 (CET) (envelope-from ticso@cicely12.cicely.de) Received: from cicely12.cicely.de (localhost [127.0.0.1]) by cicely12.cicely.de (8.12.10/8.12.10) with ESMTP id hA4N0f2u074054; Wed, 5 Nov 2003 00:00:41 +0100 (CET) (envelope-from ticso@cicely12.cicely.de) Received: (from ticso@localhost) by cicely12.cicely.de (8.12.10/8.12.10/Submit) id hA4N0eir074053; Wed, 5 Nov 2003 00:00:40 +0100 (CET) (envelope-from ticso) Date: Wed, 5 Nov 2003 00:00:40 +0100 From: Bernd Walter To: Wilko Bulte Message-ID: <20031104230040.GK42463@cicely12.cicely.de> References: <20031101103955.GA42891@rot13.obsecurity.org> <20031104031740.GA67484@rot13.obsecurity.org> <20031104124826.GH42463@cicely12.cicely.de> <20031104175552.GA70699@rot13.obsecurity.org> <20031104221251.GJ42463@cicely12.cicely.de> <20031104221826.GC15210@freebie.xs4all.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20031104221826.GC15210@freebie.xs4all.nl> X-Operating-System: FreeBSD cicely12.cicely.de 5.1-CURRENT alpha User-Agent: Mutt/1.5.4i cc: alpha@freebsd.org cc: ticso@cicely.de cc: Kris Kennaway Subject: Re: New alpha 5.x bug X-BeenThere: freebsd-alpha@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: ticso@cicely.de List-Id: Porting FreeBSD to the Alpha List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Nov 2003 23:01:02 -0000 On Tue, Nov 04, 2003 at 11:18:26PM +0100, Wilko Bulte wrote: > On Tue, Nov 04, 2003 at 11:12:51PM +0100, Bernd Walter wrote: > > On Tue, Nov 04, 2003 at 09:55:52AM -0800, Kris Kennaway wrote: > > > On Tue, Nov 04, 2003 at 01:48:27PM +0100, Bernd Walter wrote: > > > > I can't speak for this problem yet, because my test systems are a bit > > > > older, but speaking for the pipe corruption: > > > > I did a lots of bzip1, tar, scp, nfs(client) without noticing any > > > > sign of problem. > > > > What is so special with the port cluster? > > > > I have no clue about it's design. > > > > > > It does lots of parallel package builds (untar, pkg_add, compile, tar) and NFS copying. > > > > Any special NFS options? > > tcp, udp, v2, v3, IPv4, IPv6? > > > > Just to get the picture complete. > > The build is local and the package is then copied to a NFS server on > > which t has a corrupted CRC? > > Is the bzip2 CRC wrong, or the tar CRC (does tar have a CRC?), or both? > > Can you say how likely such a corruption is? > > Are other packages compiled during copying a package file to the server? > > Are the building machines memory stressed while creating the bz file or > > while copying it? > > Hmmm.. the package builders are Miatas right? > > Are they using a PCI add-in ethernet card? > > I'm thinking of the Miata's rather fragile DMA stuff in the Pyxis > core logic chip. This is on one of my NFS servers: [53]cicely9# uptime 11:38PM up 73 days, 2:49, 4 users, load averages: 0.03, 0.02, 0.00 [54]cicely9# uname -a FreeBSD cicely9.cicely.de 5.1-CURRENT FreeBSD 5.1-CURRENT #0: Sat Aug 23 03:25:04 CEST 2003 ticso@cicely9.cicely.de:/var/d2/obj/var/d7/builder/FreeBSD-2003-08-22-cicely9/src/sys/CICELY9 alpha The system is a PC164 with a 3COM 3C905B (xl) card and has a lot of NFS load. Isn't the chipset the same as in miatas? One importent difference is that PC164 systems still run with a hack for blocking interupts, which effectively block more interrupts then actually required and therefor massively reduce IO concurency. -- B.Walter BWCT http://www.bwct.de ticso@bwct.de info@bwct.de