Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759755AbXE1Mzk (ORCPT ); Mon, 28 May 2007 08:55:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753411AbXE1Mzd (ORCPT ); Mon, 28 May 2007 08:55:33 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:52014 "EHLO amd.ucw.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751123AbXE1Mzc (ORCPT ); Mon, 28 May 2007 08:55:32 -0400 Date: Mon, 28 May 2007 14:55:07 +0200 From: Pavel Machek To: Matthew Garrett Cc: "Rafael J. Wysocki" , Linus Torvalds , Romano Giannetti , Chris Wright , Chuck Ebbert , Linux Kernel Mailing List , stable@kernel.org, Justin Forbes , Zwane Mwaikambo , "Theodore Ts'o" , Randy Dunlap , Dave Jones , Chuck Wolber , Chris Wedgwood , Michael Krufky , akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk Subject: Re: pcmcia resume 60 second hang. Re: [patch 00/69] -stable review Message-ID: <20070528125507.GI18807@elf.ucw.cz> References: <1180008394.15600.26.camel@localhost> <20070527184402.GA21161@srcf.ucam.org> <20070528010506.GA24186@srcf.ucam.org> <200705281011.17338.rjw@sisk.pl> <20070528121056.GA29143@srcf.ucam.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070528121056.GA29143@srcf.ucam.org> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.11+cvs20060126 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1821 Lines: 39 Hi! > > > This /mostly/ works - I've had my test machine cycling through a suspend > > > cycle every 10 seconds for the past hour without any difficulties > > > providing I unload USB first. If USB is loaded, the suspend occasionally > > > fails with one of the devices returning -EBUSY and causing it to be > > > aborted. I haven't looked into this in any detail yet, but it's > > > presumably sufficiently generic code that it's potentially biting people > > > on PPC anyway. > > > > Most probably. > > > > Still, please take what I said in the other thread into consideration: We've > > been using the freezer for so long that at least some drivers started to rely > > on it being used. > > > > Even if there are no such drivers on your system, they can be used by other > > systems. > > Sure, but if any of these drivers run on PPC then they're broken anyway. > The assumption that processes will be frozen during suspend is true in > the specific case of ACPI and some of the ARM platforms, but not true on > PPC or APM systems. We either need to fix the drivers to stop assuming > this or add the process freezer to the other PM systems. Right now, > they're buggy. Well, PPC people are aware of this, and they think they can fix the drivers. We probably want to drop the freezer for suspend long-term, so. PPC machines use small subset of all the drivers, so it apparently is not big problem for them. Pavel -- (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/