From mboxrd@z Thu Jan 1 00:00:00 1970 From: Adrian Bunk Subject: Re: [4/5] 2.6.21-rc5: known regressions Date: Wed, 28 Mar 2007 00:29:19 +0200 Message-ID: <20070327222919.GI16477@stusta.de> References: <20070327015949.GB16477@stusta.de> <200703271209.14447.rjw@sisk.pl> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: <200703271209.14447.rjw@sisk.pl> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.linux-foundation.org Errors-To: linux-pm-bounces@lists.linux-foundation.org To: "Rafael J. Wysocki" Cc: Thomas Gleixner , "Eric W. Biederman" , Linus Torvalds , Andrew Morton , linux-pm@lists.osdl.org, Linux Kernel Mailing List , Thomas Meyer List-Id: linux-pm@vger.kernel.org On Tue, Mar 27, 2007 at 12:09:13PM +0200, Rafael J. Wysocki wrote: > On Tuesday, 27 March 2007 03:59, Adrian Bunk wrote: > > This email lists some known regressions in Linus' tree compared to 2.6.= 20. > > = > > If you find your name in the Cc header, you are either submitter of one > > of the bugs, maintainer of an affectected subsystem or driver, a patch > > of you caused a breakage or I'm considering you in any other way > > possibly involved with one or more of these issues. > > = > > Due to the huge amount of recipients, please trim the Cc when answering. > = > I think the following two: > = > > Subject : suspend to disk: keypress required for power down > > References : http://lkml.org/lkml/2007/3/25/78 > > Submitter : Thomas Meyer > > Status : unknown > = > > Subject : suspend to disk: non-boot cpus are disabled again > > References : http://lkml.org/lkml/2007/3/25/78 > > Submitter : Thomas Meyer > > Handled-By : Rafael J. Wysocki > > Eric W. Biederman > > Status : problem is being debugged > = > are related to the same issue. > = > The problem is that we call disable_nonboot_cpus() in swsusp before > powering down the system in order to avoid triggering the WARN_ON() > in arch/x86_64/kernel/acpi/sleep.c:init_low_mapping() and this doesn't > work well on Thomas' system. > = > Since the problem has been introduced by commit > 94985134b7b46848267ed6b734320db01c974e72 > (swsusp: disable nonboot CPUs before entering platform suspend), I think = it's > better to revert this commit and remove the the WARN_ON() in > arch/x86_64/kernel/acpi/sleep.c:init_low_mapping() (appended is a patch t= hat > removes the WARN_ON()). It's now in Linus' tree. Thomas (Meyer), are there any regressions left with the latest -git tree = plus the MSI fix? > Greetings, > Rafael >... cu Adrian -- = "Is there not promise of rain?" Ling Tan asked suddenly out of the darkness. There had been need of rain for many days. "Only a promise," Lao Er said. Pearl S. Buck - Dragon Seed