Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760662AbXKIBoy (ORCPT ); Thu, 8 Nov 2007 20:44:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752991AbXKIBoo (ORCPT ); Thu, 8 Nov 2007 20:44:44 -0500 Received: from nz-out-0506.google.com ([64.233.162.227]:53241 "EHLO nz-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751795AbXKIBon (ORCPT ); Thu, 8 Nov 2007 20:44:43 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:x-enigmail-version:content-type:content-transfer-encoding; b=Iv99SPsB/obFPlcH+jaZPpg4JrFSNYojXeopCE+1pKuYYLupPUy+8PfLXSZLNYf+JQ5TJJPu1uEHvYUTsUuCwAgTXlcbwRkj7ydd61YNaZtTKIO02pUUf+rFMGC3Ii0BfPF062zym1aVEjGxRSJqw+WpRKsYGPlFDoSUsmfX738= Message-ID: <4733BB7F.8010004@gmail.com> Date: Fri, 09 Nov 2007 10:44:31 +0900 From: Tejun Heo User-Agent: Thunderbird 2.0.0.6 (X11/20070801) MIME-Version: 1.0 To: Denys Fedoryshchenko CC: Jeff Garzik , Alan Cox , Bartlomiej Zolnierkiewicz , Mark Lord , James Andrewartha , Andrew Morton , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org Subject: Re: SC1200 failure in 2.6.23 and 2.6.24-rc1-git10 References: <20071101213013.M54162@visp.net.lb> <20071107232045.GA26706@havoc.gtf.org> <20071107235548.M95675@visp.net.lb> <200711080130.54143.bzolnier@gmail.com> <20071108071204.M66693@visp.net.lb> <20071108104813.78ca4d65@the-village.bc.nu> <20071108164320.M82021@visp.net.lb> <20071108173139.GA1932@havoc.gtf.org> <20071108195605.M20599@visp.net.lb> In-Reply-To: <20071108195605.M20599@visp.net.lb> X-Enigmail-Version: 0.95.3 Content-Type: text/plain; charset=KOI8-R Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 663 Lines: 17 Denys Fedoryshchenko wrote: > Thanks, it works like that. > > Seems in libata there is no fall-back to non-DMA mode, if DMA didn't work. There is, it's just too conservative about that. With improvements pending for 2.6.24, it should be quite snappy at falling back to PIO if configured transfer mode doesn't seem to work at all (consecutive IO command failures after transfer mode configuration change). -- tejun - 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/