From owner-freebsd-current@FreeBSD.ORG Fri Oct 3 10:10:31 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A4E1916A4B3 for ; Fri, 3 Oct 2003 10:10:31 -0700 (PDT) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by mx1.FreeBSD.org (Postfix) with ESMTP id E555943F93 for ; Fri, 3 Oct 2003 10:10:28 -0700 (PDT) (envelope-from larse@ISI.EDU) Received: from isi.edu (c-24-130-112-121.we.client2.attbi.com [24.130.112.121]) by boreas.isi.edu (8.11.6p2+0917/8.11.2) with ESMTP id h93HALb23845; Fri, 3 Oct 2003 10:10:21 -0700 (PDT) Message-ID: <3F7DAD7C.2040505@isi.edu> Date: Fri, 03 Oct 2003 10:10:20 -0700 From: Lars Eggert Organization: USC Information Sciences Institute User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.5) Gecko/20030916 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Kris Kennaway References: <20031003054326.GA51359@rot13.obsecurity.org> In-Reply-To: <20031003054326.GA51359@rot13.obsecurity.org> Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="------------ms050704080404070001090307" cc: current@FreeBSD.org Subject: Re: NFS corruption on p4 machines (please test) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 03 Oct 2003 17:10:31 -0000 X-List-Received-Date: Fri, 03 Oct 2003 17:10:31 -0000 X-List-Received-Date: Fri, 03 Oct 2003 17:10:31 -0000 This is a cryptographically signed message in MIME format. --------------ms050704080404070001090307 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Kris, Kris Kennaway wrote: > For some months now I have been experiencing NFS corruption on the > three machines in the dosirak.kr package cluster - these are SMP > pentium 4 machines that run -CURRENT. Setting DISABLE_PSE and > DISABLE_PG_G does not fix these problems. I am able to easily > reproduce these problems using /usr/src/tools/regression/fsx on a > loopback nfs mount - they are not deterministic, but it blows up > within about 8000 operations (less than a minute of operation). In > fact sometimes it even manages to make fsx segfault, which is fairly > impressive :) > > Just mount something rw via loopback nfs, and run 'fsx foo' on the nfs > filesystem for a few minutes. I just ran an fsx cycle on my desktop machine over a TCP mount, and it seemed to work fine: [root@nik: /usr/src/tools/regression/fsx] ./fsx /tmp/nfs/x truncating to largest ever: 0x13e76 truncating to largest ever: 0x2e52c truncating to largest ever: 0x3c2c2 truncating to largest ever: 0x3f15f truncating to largest ever: 0x3fcb9 truncating to largest ever: 0x3fe96 truncating to largest ever: 0x3ff9d truncating to largest ever: 0x3ffff skipping zero size read skipping zero size write skipping zero size write ^Csignal 2 testcalls = 166863 Lars -- Lars Eggert USC Information Sciences Institute --------------ms050704080404070001090307 Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIJtjCC AzgwggKhoAMCAQICEGZFcrfMdPXPY3ZFhNAukQEwDQYJKoZIhvcNAQEEBQAwgdExCzAJBgNV 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