From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261856AbVHAJBJ (ORCPT ); Mon, 1 Aug 2005 05:01:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261959AbVHAJBJ (ORCPT ); Mon, 1 Aug 2005 05:01:09 -0400 Received: from gate.crashing.org ([63.228.1.57]:33431 "EHLO gate.crashing.org") by vger.kernel.org with ESMTP id S261856AbVHAI74 (ORCPT ); Mon, 1 Aug 2005 04:59:56 -0400 Subject: Re: revert yenta free_irq on suspend From: Benjamin Herrenschmidt To: Pavel Machek Cc: Len Brown , Linux Kernel Mailing List , Daniel Ritz , Dominik Brodowski , Andrew Morton , Hugh Dickins , Linus Torvalds In-Reply-To: <20050731212058.GC27433@elf.ucw.cz> References: <2e00842e116e.2e116e2e0084@columbus.rr.com> <20050731212058.GC27433@elf.ucw.cz> Content-Type: text/plain Date: Mon, 01 Aug 2005 10:56:14 +0200 Message-Id: <1122886575.18835.113.camel@gaston> Mime-Version: 1.0 X-Mailer: Evolution 2.2.2 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 2005-07-31 at 23:20 +0200, Pavel Machek wrote: > Hi! > > > Also I'd like to point out that this patch broke APM suspend-to-ram, > > not ACPI S3. IMO, it may not be possible to support both APM and ACPI > > on every system, as their specs are not intended to be compatible. > > Progress toward proper suspend-to-ram support will, in many cases, be > > a small setback for APM. This really can't be avoided. > > Actually, for APM, OS theoretically does *not* need to FREEZE the > devices (or do anything else). "Doing nothing" should be easy... Bullshit. See what happens if you try to APM suspend while a IDE DMA transfer is in progress ... Ben.