Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751050AbXANDSW (ORCPT ); Sat, 13 Jan 2007 22:18:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751079AbXANDSV (ORCPT ); Sat, 13 Jan 2007 22:18:21 -0500 Received: from srv5.dvmed.net ([207.36.208.214]:39555 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751050AbXANDSV (ORCPT ); Sat, 13 Jan 2007 22:18:21 -0500 Message-ID: <45A9A0F2.4090608@garzik.org> Date: Sat, 13 Jan 2007 22:18:10 -0500 From: Jeff Garzik User-Agent: Thunderbird 1.5.0.9 (X11/20061219) MIME-Version: 1.0 To: Robert Hancock CC: Faik Uygur , linux-kernel , Tejun Heo Subject: Re: ahci_softreset prevents acpi_power_off References: <45A9860D.5080506@shaw.ca> In-Reply-To: <45A9860D.5080506@shaw.ca> Content-Type: text/plain; charset=UTF-8; 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: 1239 Lines: 35 Robert Hancock wrote: > Faik Uygur wrote: >>> What happens when you try to shutdown? >> >> Does not shutdown and freezes. >> >> Hand copied last messages seen on console: >> >> Synchronizing SCSI cache for disk sda: >> ACPI: PCI Interrupt for device 0000:06:08.0 disabled >> Power down. >> acpi_power_off called >> hwsleep-0285 [01] enter_sleep_state : Entering sleep state [S5] > > Since you're getting to this point I think this has to be some kind of > BIOS interaction causing this. The only thing that happens after the > "Entering sleep state" is that the kernel writes to some ACPI registers > to tell the hardware to power down. I think some laptop BIOSes do things > on ACPI power down like try to park the drive heads, etc. and maybe this > change that you found from git bisecting is somehow interfering with it > doing this? > > Might want to check for a BIOS update first of all.. It would be interesting to try -mm, which includes ACPI support for ATA... 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/