Date: Wed, 24 May 2006 16:37:47 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Giorgos Keramidas <keramida@ceid.upatras.gr> Cc: current@freebsd.org, Kris Kennaway <kris@obsecurity.org> Subject: Re: md /tmp and async mounts Message-ID: <20060524203747.GA88742@xor.obsecurity.org> In-Reply-To: <20060524203645.GB13500@gothmog.pc> References: <20060522211223.GA3621@xor.obsecurity.org> <20060522231437.GC1446@odin.ac.hmc.edu> <20060523133037.GA2908@gothmog.pc> <20060523143013.GA11472@ci0.org> <20060523194106.GA46634@xor.obsecurity.org> <20060524203645.GB13500@gothmog.pc>
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--TB36FDmn/VVEgNH/ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, May 24, 2006 at 11:36:45PM +0300, Giorgos Keramidas wrote: > On 2006-05-23 15:41, Kris Kennaway <kris@obsecurity.org> wrote: > > You are confusing mdconfig's -o async mode, used only for vnode > > backing (not the case here anyway): > > > > [no]async > > For vnode backed devices: avoid IO_SYNC for increa= sed > > performance but at the risk of deadlocking the ent= ire > > kernel. > > > > with mount's -o async mode, used at the filesystem layer on any > > device. The latter does not have deadlocks. >=20 > Hi Kris, >=20 > so we can safely add async to `tmpmfs_flags' in /etc/defaults/rc.conf? I think so. Also whatever else uses mds (diskless booting, ...?) > If that is so, do you want me to make the change, or do you want to do > this? I don't have a good idea of what needs to be changed to do all of the above, so if you're familiar with the code you might as well do it. Kris --TB36FDmn/VVEgNH/ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (FreeBSD) iD8DBQFEdMQaWry0BWjoQKURAiPsAKD47S6YY/ixMuthj6wrCkPgnHE+pACeOyNP mJG6+IaCxgiGPb4IknhZi/E= =Le8C -----END PGP SIGNATURE----- --TB36FDmn/VVEgNH/--
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