From owner-freebsd-fs Fri Mar 1 17:56:40 2002 Delivered-To: freebsd-fs@freebsd.org Received: from obsecurity.dyndns.org (adsl-64-169-107-10.dsl.lsan03.pacbell.net [64.169.107.10]) by hub.freebsd.org (Postfix) with ESMTP id 75D5A37B402 for ; Fri, 1 Mar 2002 17:56:36 -0800 (PST) Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id 8CBA166C32; Fri, 1 Mar 2002 17:56:32 -0800 (PST) Date: Fri, 1 Mar 2002 17:56:32 -0800 From: Kris Kennaway To: Matthew Dillon Cc: Kris Kennaway , Ian Dowse , Kirk McKusick , Finch , fs@FreeBSD.ORG, fanf@chiark.greenend.org.uk Subject: Re: UFS panic on -stable Message-ID: <20020301175632.A21599@xor.obsecurity.org> References: <200202260141.g1Q1f8i28365@beastie.mckusick.com> <200202260237.aa51774@salmon.maths.tcd.ie> <20020226184340.A78562@xor.obsecurity.org> <20020228135233.B5586@xor.obsecurity.org> <20020301173740.A21179@xor.obsecurity.org> <200203020150.g221oWS48392@apollo.backplane.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-md5; protocol="application/pgp-signature"; boundary="82I3+IH0IqGh5yIs" Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <200203020150.g221oWS48392@apollo.backplane.com>; from dillon@apollo.backplane.com on Fri, Mar 01, 2002 at 05:50:32PM -0800 Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org --82I3+IH0IqGh5yIs Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Mar 01, 2002 at 05:50:32PM -0800, Matthew Dillon wrote: > I wonder if this has anything to do with MFS's VM pages getting > paged in and out. >=20 > Could you try hacking mount_mfs to mlock() the MFS memory? As > shown below. I'm not entirely sure this will actually do anything, > but it's worth a shot (assuming you have enough memory to cover all > your MFS mounted filesystems). >=20 > If this does the trick I'll take a look at the way MFS accesses > the process's VM space. If it doesn't at least we will know it > isn't related to MFS's paging. Will try! I've also given up on trying to get packages built for now, and am just running some MFS stress tests to try and trigger panics. Kris --82I3+IH0IqGh5yIs Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (FreeBSD) Comment: For info see http://www.gnupg.org iD8DBQE8gDFPWry0BWjoQKURAiWMAKCWlh+5o7fPzz1ZC+6v9tgVE2egGACggJPI ZAy7hkFU+JXogoWP1X+8YU8= =t1Ud -----END PGP SIGNATURE----- --82I3+IH0IqGh5yIs-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message