From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: 2.6.24.X: SATA/AHCI related boot delay. - not with 2.6.24.3 Date: Fri, 11 Apr 2008 21:42:59 -0400 Message-ID: <480013A3.1010502@garzik.org> References: <200803091922.33083.volker.armin.hemmann@tu-clausthal.de> <200804031347.20352.volker.armin.hemmann@tu-clausthal.de> <47FEFFC6.4@gmail.com> <200804111355.55364.volker.armin.hemmann@tu-clausthal.de> <48000FF8.300@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from srv5.dvmed.net ([207.36.208.214]:54405 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755827AbYDLBnC (ORCPT ); Fri, 11 Apr 2008 21:43:02 -0400 In-Reply-To: <48000FF8.300@gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Tejun Heo Cc: Volker Armin Hemmann , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, Peer Chen , Kuan Luo Tejun Heo wrote: > Volker Armin Hemmann wrote: >> Hi, >> >>> Aiee.... Can you please try 2.6.25-rc8 with both configurations? And >>> w/o systemrescuecd? Just seeing whether things mount properly or not is >>> good enough. There isn't much risk of losing data. >> >> 2.6.25-rc8 is a 'no change'. AHCI+pci=nomsi boots, AHCI without hangs. >> with AHCI I also get this: >> >> [ 0.363828] ------------[ cut here ]------------ >> [ 0.363828] WARNING: at drivers/ata/ahci.c:645 >> ahci_init_one+0x190/0xa3a() >> [ 0.363828] Modules linked in: >> [ 0.363828] Pid: 1, comm: swapper Not tainted 2.6.25-rc8 #2 > > Heh.. that's AHCI_EN not getting set. Peer, any ideas? The driver set > AHCI_EN in the HOST_CTL register but on reading back it's still clear. Possibly the hardware is not idle? I wonder if the BIOS is doing anything with the IDE interface. _Probably_ not, but that is certainly a situation where switching to AHCI can be a problem for certain AHCI chips. Jeff