Date: Thu, 4 May 2006 00:47:58 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Mike Jakubik <mikej@rogers.com> Cc: Robert Watson <rwatson@freebsd.org>, Mark Linimon <linimon@lonesome.com>, stable@freebsd.org, David Kirchner <dpk@dpk.net>, Kris Kennaway <kris@obsecurity.org> Subject: Re: quota deadlock on 6.1-RC1 Message-ID: <20060504044758.GA41047@xor.obsecurity.org> In-Reply-To: <44598615.3040400@rogers.com> References: <44579EE1.6010300@rogers.com> <20060502180557.GA91762@xor.obsecurity.org> <4457A02C.9040408@rogers.com> <20060502182302.GA92027@xor.obsecurity.org> <20060503110503.O58458@fledge.watson.org> <35c231bf0605031821s582b6d03j3ee9d434a596f62a@mail.gmail.com> <20060504021908.GA714@soaustin.net> <35c231bf0605032011s65fbb1aby742438465ee98ee7@mail.gmail.com> <20060504033300.GA39935@xor.obsecurity.org> <44598615.3040400@rogers.com>
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--Qxx1br4bt0+wmkIi Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, May 04, 2006 at 12:41:57AM -0400, Mike Jakubik wrote: > Kris Kennaway wrote: > >On Wed, May 03, 2006 at 08:11:32PM -0700, David Kirchner wrote: > > =20 > >>On 5/3/06, Mark Linimon <linimon@lonesome.com> wrote: > >> =20 > >>>To summarize: at some point you do, indeed, have to ship something. Y= ou > >>>have to choose a point where the least number of users will see=20 > >>>regressions > >>>vs. the most number of users will see improvements. (Not everyone uses > >>>quotas.) > >>> =20 > >>FWIW, the snapshot bugs, particularly those seen during background > >>fscks, can affect every installation, although you're unlikely to see > >>them unless your server panics or loses power (or in some way requires > >>a fsck on boot). > >> =20 > > > >You missed the part where snapshots have caused deadlocks under > >varying conditions since day 1. They have never worked 100% reliably, > >and despite our best efforts that will remain true with 6.1. > > > >Kris > > =20 >=20 > Then why utilize a known non-functional technology? Because again, the benefits have been judged by the decision-makers and found to outweigh the drawbacks. Perhaps that's just a difficult concept for some people to understand if they're used to thinking of everything in binary terms. Kris --Qxx1br4bt0+wmkIi Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (FreeBSD) iD8DBQFEWYd9Wry0BWjoQKURAsGyAJ9gC76l8TGsQb1K88ppWWZt8+qRYQCcDa5a 6VbJQW/tl7+gHwwbz8Nz+v4= =Viug -----END PGP SIGNATURE----- --Qxx1br4bt0+wmkIi--
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