Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2992728AbWJTVMq (ORCPT ); Fri, 20 Oct 2006 17:12:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S2992725AbWJTVMq (ORCPT ); Fri, 20 Oct 2006 17:12:46 -0400 Received: from srv5.dvmed.net ([207.36.208.214]:63689 "EHLO mail.dvmed.net") by vger.kernel.org with ESMTP id S2992720AbWJTVMp (ORCPT ); Fri, 20 Oct 2006 17:12:45 -0400 Message-ID: <45393BC4.5020903@garzik.org> Date: Fri, 20 Oct 2006 17:12:36 -0400 From: Jeff Garzik User-Agent: Thunderbird 1.5.0.7 (X11/20060913) MIME-Version: 1.0 To: Alan Cox CC: Kevin Radloff , Linus Torvalds , Linux Kernel Mailing List , "linux-ide@vger.kernel.org" Subject: Re: Linux 2.6.19-rc2 References: <3b0ffc1f0610201130i8f15e49oec2cdc68abb8dbd@mail.gmail.com> <1161377586.26440.61.camel@localhost.localdomain> In-Reply-To: <1161377586.26440.61.camel@localhost.localdomain> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -4.3 (----) X-Spam-Report: SpamAssassin version 3.1.7 on srv5.dvmed.net summary: Content analysis details: (-4.3 points, 5.0 required) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1620 Lines: 35 Alan Cox wrote: > Ar Gwe, 2006-10-20 am 14:30 -0400, ysgrifennodd Kevin Radloff: >> On 10/13/06, Linus Torvalds wrote: >>> Ok, it's a week since -rc1, so -rc2 is out there. >> A bit behind, but booting still takes ages on my laptop as >> libata/ata_piix tries to probe a device that isn't there (I reported >> this previously against -rc1, but got no response): > > Probing is somewhat broken in 2.6.18 - something in the core code > changed as its upset quite a few drivers at once. One case causes > repeated errors and finally detection of an ATAPI device, the other > causes repeated errors and then failure when no device is present but > takes a few minutes and keeps IRQs locked off for long periods. Both > appear to be fallouts from the new EH code. There are definitely warts related to the new EH stuff, but specifically for SATA + ata_piix, it has been a long hard road of trying various probing mechanisms. Tejun has some patches that revert all the PCS work and rewinds back to original SATA ata_piix probing, in -mm for testing. If testing feedback proves positive, let's go ahead and fast-track that up the line. With ata_piix, I would worry more about PCS register follies than core libata. Users can try the module option force_pcs=[0|1|2] to experiment and see if any of the three possibilities improves their boot. Jeff - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/