From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alan Cox Subject: RE: the patch of restore-pci-config-space-on-resume break S1 on ASUS2400 NE Date: Mon, 27 Dec 2004 13:44:52 +0000 Message-ID: <1104155089.20693.1.camel@localhost.localdomain> References: <3ACA40606221794F80A5670F0AF15F8406A26924@pdsmsx403> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <3ACA40606221794F80A5670F0AF15F8406A26924@pdsmsx403> Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: "Yu, Luming" Cc: Arjan van de Ven , Pavel Machek , "Brown, Len" , "Li, Shaohua" , "Pallipadi, Venkatesh" , Linux Kernel Mailing List , acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, "Fu, Michael" List-Id: linux-acpi@vger.kernel.org On Llu, 2004-12-27 at 10:14, Yu, Luming wrote: > Actually, the kernel (after removing restore-pci-config-space-on-resume patch) with option "ide=nodma" > can work with S1 suspend/resume without any hang so far. > So my suggestion for IDE driver is to disable DMA before entering S1, and enable > DMA after resuming from S1 if DMA was enabled. I need help from IDE guys to confirm it. The IDE layer has no problem doing this, although it raises interesting questions about why it would be neccessary. ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/