From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Subject: Re: [1/4] 2.6.23-rc6: known regressions Date: Thu, 13 Sep 2007 02:36:51 -0700 Message-ID: <20070913093651.GA5077@suse.de> References: <46E81AC6.3000306@googlemail.com> <46E8A572.7050209@rtr.ca> Mime-Version: 1.0 Return-path: Content-Disposition: inline In-Reply-To: <46E8A572.7050209@rtr.ca> Sender: linux-alpha-owner@vger.kernel.org List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Mark Lord , Alan Stern , Oliver Neukum Cc: Michal Piotrowski , Linus Torvalds , Andrew Morton , LKML , Ingo Molnar , Markus , Jeff Chua , "Antonino A. Daplas" , linux-alpha@vger.kernel.org, Stefan Becker , Andi Kleen , Dave Jones , Len Brown , Pavel Machek , Thomas Gleixner , Jakub Jelinek , Jeff Dike , user-mode-linux-devel@lists.sourceforge.net, Adrian Bunk On Wed, Sep 12, 2007 at 10:50:26PM -0400, Mark Lord wrote: > Michal Piotrowski wrote: >> Hi all, >> Here is a list of some known regressions in 2.6.23-rc6. > ... > > Missing from the list: > > USB "autosuspend" feature (new in 2.6.23) breaks *lots* of devices. > Many have since been blacklisted in one-at-a-time discovery patches, > but that's really just the tip of the iceberg. > > This "feature" breaks a TON of user-visible things, > mostly USB storage devices (USB drives/pens, digicams, etc..). > > The functionality is broken for just too much stuff, > and needs to either be reverted or defaulted to "off" rather than "on". Ok, after conferring with Oliver this morning, I think the best solution here is to both revert the usb-storage suspend patch as it has some basic problems that can cause data loss, _and_ add the change to the kernel that by default disables autosuspend on all USB devices except hubs. If anyone has any objections to this, please let me know. thanks, greg k-h From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.91] helo=mail.sourceforge.net) by sc8-sf-list1-new.sourceforge.net with esmtp (Exim 4.43) id 1IVl51-00070C-8h for user-mode-linux-devel@lists.sourceforge.net; Thu, 13 Sep 2007 02:33:47 -0700 Received: from cantor2.suse.de ([195.135.220.15] helo=mx2.suse.de) by mail.sourceforge.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.44) id 1IVl50-0007Nm-Rg for user-mode-linux-devel@lists.sourceforge.net; Thu, 13 Sep 2007 02:33:47 -0700 Date: Thu, 13 Sep 2007 02:36:51 -0700 From: Greg KH Message-ID: <20070913093651.GA5077@suse.de> References: <46E81AC6.3000306@googlemail.com> <46E8A572.7050209@rtr.ca> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <46E8A572.7050209@rtr.ca> Subject: Re: [uml-devel] [1/4] 2.6.23-rc6: known regressions List-Id: The user-mode Linux development list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: user-mode-linux-devel-bounces@lists.sourceforge.net Errors-To: user-mode-linux-devel-bounces@lists.sourceforge.net To: Mark Lord , Alan Stern , Oliver Neukum Cc: Jakub Jelinek , Len Brown , Adrian Bunk , Michal Piotrowski , Jeff Chua , Stefan Becker , LKML , Andi Kleen , Markus , Thomas Gleixner , Pavel Machek , linux-alpha@vger.kernel.org, user-mode-linux-devel@lists.sourceforge.net, Dave Jones , Andrew Morton , Jeff Dike , Linus Torvalds , Ingo Molnar , "Antonino A. Daplas" On Wed, Sep 12, 2007 at 10:50:26PM -0400, Mark Lord wrote: > Michal Piotrowski wrote: >> Hi all, >> Here is a list of some known regressions in 2.6.23-rc6. > ... > > Missing from the list: > > USB "autosuspend" feature (new in 2.6.23) breaks *lots* of devices. > Many have since been blacklisted in one-at-a-time discovery patches, > but that's really just the tip of the iceberg. > > This "feature" breaks a TON of user-visible things, > mostly USB storage devices (USB drives/pens, digicams, etc..). > > The functionality is broken for just too much stuff, > and needs to either be reverted or defaulted to "off" rather than "on". Ok, after conferring with Oliver this morning, I think the best solution here is to both revert the usb-storage suspend patch as it has some basic problems that can cause data loss, _and_ add the change to the kernel that by default disables autosuspend on all USB devices except hubs. If anyone has any objections to this, please let me know. thanks, greg k-h ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel