Date: Tue, 22 Jan 2008 01:24:55 -0800 From: Jeremy Chadwick <koitsu@FreeBSD.org> To: Gerrit =?iso-8859-1?Q?K=FChn?= <gerrit@pmp.uni-hannover.de> Cc: freebsd-stable@freebsd.org, freebsd-mobile@freebsd.org Subject: Re: T7200 CPU not detected by est Message-ID: <20080122092455.GA64519@eos.sc1.parodius.com> In-Reply-To: <20080122094756.2d8f0bdf.gerrit@pmp.uni-hannover.de> References: <20080121171606.8eb5f189.gerrit@pmp.uni-hannover.de> <20080121170102.GA46419@eos.sc1.parodius.com> <20080122094756.2d8f0bdf.gerrit@pmp.uni-hannover.de>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tue, Jan 22, 2008 at 09:47:56AM +0100, Gerrit Kühn wrote: > Ok, so it's probably neither specific for CPUs nor for the mainbaords; > however, up to now all CPUs with this problem are Core2 CPUs. > > JC> In the case of our servers, we usually turn EIST off (this one > JC> particular box has it enabled) because of the above problem -- but I'd > JC> much rather have it turned on to help save power. For a laptop or > JC> workstation, however, I can see this being an incredibly important > JC> feature. > > I run low power workstations here which are intended to be used in a lab > environment, and I would very much like to have working power-saving > features (otherwise the whole setup is quite useless). > > Can I somehow help debugging this, should I file a PR or are there any > further recommended things to do? I believe the problem is that our CPUs don't match any of the identification verification methods performed in src/sys/i386/cpufreq/est.c. I should be able to make a patch for this, but will need time -- our to-be-dev/test C2D box sits in my living room waiting for CPUs to arrive so it can be built. :-) If you'd like to file a PR in the meantime, that'd be great too; let me know what the PR # is. -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20080122092455.GA64519>