From owner-freebsd-bugs@FreeBSD.ORG Sat Feb 25 05:16:22 2006 Return-Path: X-Original-To: freebsd-bugs@hub.freebsd.org Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 23AF416A422; Sat, 25 Feb 2006 05:16:22 +0000 (GMT) (envelope-from cperciva@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id E175043D46; Sat, 25 Feb 2006 05:16:21 +0000 (GMT) (envelope-from cperciva@FreeBSD.org) Received: from freefall.freebsd.org (cperciva@localhost [127.0.0.1]) by freefall.freebsd.org (8.13.4/8.13.4) with ESMTP id k1P5GLos056769; Sat, 25 Feb 2006 05:16:21 GMT (envelope-from cperciva@freefall.freebsd.org) Received: (from cperciva@localhost) by freefall.freebsd.org (8.13.4/8.13.4/Submit) id k1P5GLUN056765; Sat, 25 Feb 2006 05:16:21 GMT (envelope-from cperciva) Date: Sat, 25 Feb 2006 05:16:21 GMT From: Colin Percival Message-Id: <200602250516.k1P5GLUN056765@freefall.freebsd.org> To: victor@bsdes.net, cperciva@FreeBSD.org, freebsd-bugs@FreeBSD.org, cperciva@FreeBSD.org Cc: Subject: Re: kern/93790: cpufreq missing frequencies X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 25 Feb 2006 05:16:22 -0000 Synopsis: cpufreq missing frequencies State-Changed-From-To: open->analyzed State-Changed-By: cperciva State-Changed-When: Sat Feb 25 05:06:32 UTC 2006 State-Changed-Why: The Enhanced SpeedStep driver was written before Intel released mobile processors with a 533MHz bus speed; it is recognizing the processor as having a 15x clock multiplier, and deciding that this means it is a 1.5GHz processor. This means that the Enhanced SpeedStep code has incorrectly recognized the processor and there may be frequencies which the driver is unable to use; but the main effect is simply that the frequencies are printed incorrectly: The frequency 2.0GHz is reported as 1.5GHz, the frequency 800MHz is reported as 600MHz, etc. Until this can be fixed properly, I suggest ignoring the frequency information returned by the driver; if the submitter uses powerd(8) he will find that it operates just as well in spite of the driver being somewhat confused. Responsible-Changed-From-To: freebsd-bugs->cperciva Responsible-Changed-By: cperciva Responsible-Changed-When: Sat Feb 25 05:06:32 UTC 2006 Responsible-Changed-Why: http://www.freebsd.org/cgi/query-pr.cgi?pr=93790