From mboxrd@z Thu Jan 1 00:00:00 1970 From: Adrian Bunk Subject: Re: [3/6] 2.6.21-rc4: known regressions Date: Mon, 26 Mar 2007 06:05:09 +0200 Message-ID: <20070326040509.GU16477@stusta.de> References: <20070318184919.GW752@stusta.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Return-path: Received: from mailout.stusta.mhn.de ([141.84.69.5]:34500 "EHLO mailhub.stusta.mhn.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S933158AbXCZEFG (ORCPT ); Mon, 26 Mar 2007 00:05:06 -0400 Content-Disposition: inline In-Reply-To: Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Jeff Chua Cc: Linus Torvalds , Andrew Morton , Linux Kernel Mailing List , "Eric W. Biederman" , "Rafael J. Wysocki" , pavel@suse.cz, linux-pm@lists.osdl.org, gregkh@suse.de, linux-pci@atrey.karlin.mff.cuni.cz, Jens Axboe , Len Brown , linux-acpi@vger.kernel.org, jgarzik@pobox.com, linux-ide@vger.kernel.org, Thomas Gleixner , "Michael S. Tsirkin" , Ingo Molnar On Mon, Mar 26, 2007 at 09:25:51AM +0800, Jeff Chua wrote: > On 3/19/07, Adrian Bunk wrote: > > >Subject : ThinkPad doesn't resume from suspend to RAM > >References : http://lkml.org/lkml/2007/2/27/80 > > http://lkml.org/lkml/2007/2/28/348 > >Submitter : Jens Axboe > > Jeff Chua > >Status : unknown > > > > > >Subject : suspend to disk hangs > >References : http://lkml.org/lkml/2007/3/6/142 > >Submitter : Jeff Chua > >Status : unknown > > The good news is on 2.6.21-rc5, suspend to disk, and resume from disk works. > But, it only works with CONFIG_NO_HZ unset. Thanks for this information. > Setting CONFIG_NO_HZ will cause suspend to disk to hang just before > saving memory to disk. Thanks, noted. > Resume from RAM (s2ram) still broke (tried with or without > CONFIG_NO_HZ). Suspend to RAM seems ok, but upon resume, the screen > will only display "inu" and only after pressing the power button will > the system return to console. But "date" still doesn't advance. This might be related to the following regression: Subject : first disk access after resume takes several minutes ('date' does not advance after resume from RAM, CONFIG_NO_HZ=n) References : http://lkml.org/lkml/2007/3/8/117 http://lkml.org/lkml/2007/3/25/20 Submitter : Michael S. Tsirkin Handled-By : Thomas Gleixner Ingo Molnar Status : problem is being debugged > Thanks, > Jeff. 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