From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ceriel Jacobs Subject: Re: r8168 is needed to enter P-state: Package State 6 (pc6) on Haswell hardware Date: Mon, 06 Oct 2014 00:22:29 +0200 Message-ID: <5431C4A5.8050001@crashplan.pro> References: <542B3829.3010108@crashplan.pro> <20141005165920.GA21926@electric-eye.fr.zoreil.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Cc: Realtek linux nic maintainers , netdev@vger.kernel.org To: Francois Romieu Return-path: Received: from relay6-d.mail.gandi.net ([217.70.183.198]:56196 "EHLO relay6-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751596AbaJEWWe (ORCPT ); Sun, 5 Oct 2014 18:22:34 -0400 In-Reply-To: <20141005165920.GA21926@electric-eye.fr.zoreil.com> Sender: netdev-owner@vger.kernel.org List-ID: This is the requested "XID" dmesg line is: [ 1.479298] r8169 0000:03:00.0 eth0: RTL8168g/8111g at 0xffffc90004752000, d0:50:99:0b:09:90, XID 0c000800 IRQ 27 Francois Romieu schreef op 05-10-14 om 18:59: > Ceriel Jacobs : >> With in-kernel r8169 module, only P-state package C3 (pc3) can be reached >> when enabling ASPM. >> >> Only after installing r8168 driver (and enabling ASPM), a Haswell Celeron >> G1820/G1840 processer will enter package C6 state (pc6). > > Vanilla kernel r8169 driver logs a message that contains an "XID" string. > Please grep for it in your dmesg so that I can narrow the search for > meaningful differences in Realtek's r8168 driver. > > Thanks. >