From owner-freebsd-net@FreeBSD.ORG Tue Nov 23 12:47:13 2010 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1A7811065675 for ; Tue, 23 Nov 2010 12:47:13 +0000 (UTC) (envelope-from freebsd-net@m.gmane.org) Received: from lo.gmane.org (lo.gmane.org [80.91.229.12]) by mx1.freebsd.org (Postfix) with ESMTP id C3ECA8FC21 for ; Tue, 23 Nov 2010 12:47:12 +0000 (UTC) Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1PKsH9-0003zD-B3 for freebsd-net@freebsd.org; Tue, 23 Nov 2010 13:47:11 +0100 Received: from lara.cc.fer.hr ([161.53.72.113]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 23 Nov 2010 13:47:11 +0100 Received: from ivoras by lara.cc.fer.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 23 Nov 2010 13:47:11 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-net@freebsd.org From: Ivan Voras Date: Tue, 23 Nov 2010 13:47:08 +0100 Lines: 13 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: lara.cc.fer.hr User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.2.12) Gecko/20101102 Thunderbird/3.1.6 X-Enigmail-Version: 1.1.2 Cc: freebsd-hardware@freebsd.org Subject: em driver, 82574L chip, and possibly ASPM X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Nov 2010 12:47:13 -0000 It looks like I'm unfortunate enough to have to deploy on a machine which has the 82574L Intel NIC chip on a Supermicro X8SIE-F board, which apparently has hardware issues, according to this thread: http://sourceforge.net/tracker/index.php?func=detail&aid=2908463&group_id=42302&atid=447449 One of the proposed workarounds is disabling "Active State Power Management" in the BIOS and in the OS. I have disabled it in BIOS but I don't know how to disable it in FreeBSD (apparently only disabling it in BIOS isn't enough). Any ideas on how to achieve the effect in FreeBSD?