Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757315AbYCYOnh (ORCPT ); Tue, 25 Mar 2008 10:43:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754902AbYCYOmy (ORCPT ); Tue, 25 Mar 2008 10:42:54 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:3839 "EHLO spitz.ucw.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754670AbYCYOmw (ORCPT ); Tue, 25 Mar 2008 10:42:52 -0400 Date: Tue, 25 Mar 2008 09:49:24 +0100 From: Pavel Machek To: Mikulas Patocka Cc: "Rafael J. Wysocki" , linux-kernel@vger.kernel.org Subject: Re: APM crashes when IO is going on Message-ID: <20080325084923.GB4547@ucw.cz> References: <200803210127.56437.rjw@sisk.pl> <200803212215.54854.rjw@sisk.pl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 956 Lines: 25 Hi! > > > Either the on-going I/O will jam BIOS and I need to remove power to > > > continue. > > > > > > Or the machine suspends, wakes up and reports "hda: lost interrupt" > > > (2.6.23.1 was able to recover from this condition, 2.6.25rc3,6 does not > > > recover and it is not able to send any more disk IOs). > > > > > > How is suspending disk IO supposed to work? Suspending IO is not supposed to be needed in APM case, try ACPI. (We could work around this.. You should be able to reuse kernel/power/main.c to stop all user processes, then stop the drivers...) -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- 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/