Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1422732AbXBUR4S (ORCPT ); Wed, 21 Feb 2007 12:56:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1422738AbXBUR4S (ORCPT ); Wed, 21 Feb 2007 12:56:18 -0500 Received: from tirith.ics.muni.cz ([147.251.4.36]:49384 "EHLO tirith.ics.muni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1422732AbXBUR4R (ORCPT ); Wed, 21 Feb 2007 12:56:17 -0500 Date: Wed, 21 Feb 2007 18:56:33 +0100 From: Lukas Hejtmanek To: Jeff Garzik Cc: linux-kernel@vger.kernel.org, IDE/ATA development list Subject: Re: [git patches] libata ACPI support Message-ID: <20070221175633.GE5143@mail.muni.cz> References: <20070220214716.GA3690@mail.muni.cz> <45DB74D9.206@garzik.org> <20070220232633.GA3598@mail.muni.cz> <45DB88FD.5020509@garzik.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <45DB88FD.5020509@garzik.org> X-echelon: NSA, CIA, CI5, MI5, FBI, KGB, BIS, Plutonium, Bin Laden, bomb User-Agent: Mutt/1.5.13 (2006-08-11) X-Muni-Spam-TestIP: 81.31.45.161 X-Greylist: Sender succeeded SMTP AUTH authentication, not delayed by milter-greylist-3.0 (tirith.ics.muni.cz [147.251.4.35]); Wed, 21 Feb 2007 18:56:07 +0100 (CET) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1411 Lines: 32 On Tue, Feb 20, 2007 at 06:49:17PM -0500, Jeff Garzik wrote: > Can you narrow down the -gitX release further? i.e. does 2.6.20-git13 > perform at full speed? -git13 includes several libata changes, but does > not include the ACPI additions. > > Since this is an ACPI execution error in the bug, that would tend to > point to bad BIOS tables. But since there is a performance drop that > does not disappear with acpi=off, there might also be another factor, > unrelated to ACPI, at play here. I've noticed on lkm another bug report which has pointed me to this: ata_piix 0000:00:1f.1: version 2.00ac7 ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 18 (level, low) -> IRQ 18 PCI: Setting latency timer of device 0000:00:1f.1 to 64 ata1: PATA max UDMA/100 cmd 0x000101f0 ctl 0x000103f6 bmdma 0x0001ffa0 irq 14 ata2: PATA max UDMA/100 cmd 0x00010170 ctl 0x00010376 bmdma 0x0001ffa8 irq 15 scsi0 : ata_piix ata1.00: ATA-6: ST9100824A, 3.04, max UDMA/100 ata1.00: 195371568 sectors, multi 16: LBA48 ata1.01: ATAPI, max UDMA/33 ata1.00: configured for UDMA/33 ata1.01: configured for UDMA/33 Both ports are for some reason configured as UDMA/33. -- Luk?? Hejtm?nek - 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/