From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261244AbVAGA2f (ORCPT ); Thu, 6 Jan 2005 19:28:35 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261187AbVAGA0J (ORCPT ); Thu, 6 Jan 2005 19:26:09 -0500 Received: from pop5-1.us4.outblaze.com ([205.158.62.125]:15825 "HELO pop5-1.us4.outblaze.com") by vger.kernel.org with SMTP id S261201AbVAGAXO (ORCPT ); Thu, 6 Jan 2005 19:23:14 -0500 Subject: Re: 2.6.10-mm2: swsusp regression From: Nigel Cunningham Reply-To: ncunningham@linuxmail.org To: Pavel Machek Cc: "Rafael J. Wysocki" , Andrew Morton , Linux Kernel Mailing List In-Reply-To: <20050106234829.GF28777@elf.ucw.cz> References: <20050106002240.00ac4611.akpm@osdl.org> <200501061848.11719.rjw@sisk.pl> <20050106225233.GD2766@elf.ucw.cz> <200501070041.43023.rjw@sisk.pl> <20050106234829.GF28777@elf.ucw.cz> Content-Type: text/plain Message-Id: <1105057470.3254.0.camel@desktop.cunninghams> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6-1mdk Date: Fri, 07 Jan 2005 11:24:30 +1100 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi. AMD64 doesn't have MTRRs, does it? If it does, I'd bet on an SMP hang. Nigel On Fri, 2005-01-07 at 10:48, Pavel Machek wrote: > Hi! > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.10/2.6.10-mm2/ > > > > > > > > > > - Various minorish updates and fixes > > > > > > > > There's an swsusp regression on my box (AMD64) wrt -mm1. Namely, > > 2.6.10-mm2 > > > > does not suspend, but hangs solid right after the critical section, 100% > > of > > > > the time. > > > > > > can you comment out device_power_{down,up} from > > > swsusp_{suspend,resume} and see what happens? > > > > It works just fine. > > Ok, problem is that device_power_{down,up} is right thing, and > neccessary for many machines to work... > > ...so... could you go through sysdev_register()s, one by one, > commenting them to see which one causes the regression? That driver > then needs to be fixed. > > Go after mtrr and time in first places. > Pavel > PS: Probably drop andrew from reply; he probably gets enough mail > anyway. I want this one to go to him so that he does not back up the > patch, through. -- Nigel Cunningham Software Engineer, Canberra, Australia http://www.cyclades.com Ph: +61 (2) 6292 8028 Mob: +61 (417) 100 574