Date: Thu, 26 Mar 2009 21:56:01 +0100 From: Lars Engels <lars.engels@0x20.net> To: Bruce Cran <bruce@cran.org.uk> Cc: Peter Jeremy <peterjeremy@optushome.com.au>, Dimitry Andric <dimitry@andric.com>, freebsd-current@freebsd.org Subject: Re: ata: printf on every spinup/spindown? Message-ID: <20090326205601.GA64269@e.0x20.net> In-Reply-To: <20090326193236.090334d1@gluon.draftnet> References: <49BE7C5A.2080103@icyb.net.ua> <10611.1237233778@critter.freebsd.dk> <20090320074833.67d615e2@gluon> <49C37B75.5060905@andric.com> <20090320191938.25d85caa@gluon> <20090326085449.GB56137@server.vk2pj.dyndns.org> <20090326191206.GA92358@e.0x20.net> <20090326193236.090334d1@gluon.draftnet>
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--a8Wt8u1KmwUX3Y2C Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Mar 26, 2009 at 07:32:36PM +0000, Bruce Cran wrote: > On Thu, 26 Mar 2009 20:12:07 +0100 > Lars Engels <lars.engels@0x20.net> wrote: >=20 > > On Thu, Mar 26, 2009 at 07:54:49PM +1100, Peter Jeremy wrote: > > > On 2009-Mar-20 19:19:38 +0000, Bruce Cran <bruce@cran.org.uk> wrote: > > > >There's a reluctance to include code like this, I > > > >think because it bypasses the ATA driver and talks directly to the > > > >drive. Since the driver doesn't know what the drive's been told to > > > >do, it can't know to adjust timers etc. to wait for the disk to > > > >spin back up, for example. > > >=20 > > > This code is no worse than installing sysutils/ataidle - which also > > > bypasses the driver. > > >=20 > > > As it stands, FreeBSD out-of-the-box behaves in a way that adversely > > > impacts laptop HDD life - and correcting this requires that the > > > end-user both be aware of the problem and then find, install and > > > configure a port to work around this. I am very uncomfortable with > > > this and would prefer to see the base system require less user > > > knowledge/intervention. > >=20 > > AFAIK ataidle is under the BSD license, so we could include it in the > > base system. >=20 > As the author I can confirm that it is BSD licensed :) > Either way - including ataidle or patching atacontrol, I'd like to see > a utility to set APM and AAM features at a minimum in the base system > because especially with the problems on recent laptops it's something > we're missing. =20 >=20 > I mentioned the reluctance to include code like it > because when I initially wrote ataidle I got a bit of resistance about > including it, I think from the worry that it would cause problems. > There are indeed a few PRs reporting panics when spinning drives back > up, but I suspect the driver is more resiliant to those issues now. +1 in including it in base and add the according entries to devd.conf (maybe commented, so people don't get any problems). --a8Wt8u1KmwUX3Y2C Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) iEYEARECAAYFAknL6+EACgkQKc512sD3afiGtwCgyJGD7jwNonZwFAfhdnQ2sRtF dUIAoIJctFJ5+L0XGpjNXu5XV6jgPNDh =B+ZL -----END PGP SIGNATURE----- --a8Wt8u1KmwUX3Y2C--
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