From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761532AbYE3ETx (ORCPT ); Fri, 30 May 2008 00:19:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759002AbYE3ETk (ORCPT ); Fri, 30 May 2008 00:19:40 -0400 Received: from rn-out-0910.google.com ([64.233.170.190]:17710 "EHLO rn-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758527AbYE3ETj (ORCPT ); Fri, 30 May 2008 00:19:39 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:x-enigmail-version:content-type:content-transfer-encoding; b=ssu54htZmWyc12KXsQa/MVV/5Unc6LJtFWakGP5Ap4cr3FLAMu2wBD8AqYtIylnXUqqTrDFrT5lfMRxexBgoDqeJHx6oayJcO8ecAf6niCmhW+hRpq8cPF8a2XNkuspBk+lwh9tM2y/BTvJtiDwaM09Ik/iWkFSDHnmTRux2JRE= Message-ID: <483F804F.1@gmail.com> Date: Fri, 30 May 2008 13:19:27 +0900 From: Tejun Heo User-Agent: Thunderbird 2.0.0.12 (X11/20080226) MIME-Version: 1.0 To: "Hemmann, Volker Armin" CC: Peer Chen , Jeff Garzik , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, Kuan Luo Subject: Re: 2.6.24.X: SATA/AHCI related boot delay. - not with 2.6.24.3 References: <200803091922.33083.volker.armin.hemmann@tu-clausthal.de> <200804221444.55483.volker.armin.hemmann@tu-clausthal.de> <480DF1F5.3060208@gmail.com> <200805291654.03617.volker.armin.hemmann@tu-clausthal.de> In-Reply-To: <200805291654.03617.volker.armin.hemmann@tu-clausthal.de> X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, Hemmann, Volker Armin wrote: > -AHCI+nomsi: boots fine. Works fine. But: I still can not enable ncq > -AHCI+msi: the usual. No harddisks found, waiting for the timeouts, then > kernel panic because of missing root. > > -NON-RAID/IDE+msi: works fine. No delays. No NCQ (not surprising since mobos > handbook says that AHCI mode is required). > -NON-RAID/IDE+nomsi: see above. So, sans NCQ, the only remaining issue is MSI, right? Peer Chen, please lemme know which controllers are affected by this MSI problem and where the problem lies. > but: > [14315325.624510] ahci 0000:00:0a.0: AHCI 0001.0100 32 slots 4 ports 3 Gbps > 0xf impl SATA mode > [14315325.624559] ahci 0000:00:0a.0: flags: 64bit sntf led clo pmp pio > > shouldn't controller and harddisks support turning on NCQ? The handbooks says > that NCQ is supported in AHCI mode and the harddisks doesn't seem to be > blacklisted. The controller is not reporting NCQ capability in its cap register (flags: line contains ncq if the controller is), so NCQ is not enabled. Thanks. -- tejun