Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755489Ab3CTU0x (ORCPT ); Wed, 20 Mar 2013 16:26:53 -0400 Received: from mail-pb0-f49.google.com ([209.85.160.49]:46481 "EHLO mail-pb0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752430Ab3CTU0v (ORCPT ); Wed, 20 Mar 2013 16:26:51 -0400 Date: Wed, 20 Mar 2013 13:28:16 -0700 From: Greg Kroah-Hartman To: Sven Joachim Cc: Alan Stern , linux-kernel@vger.kernel.org, stable@vger.kernel.org, Stephen Thirlwall Subject: Re: [ 12/75] USB: EHCI: work around silicon bug in Intels EHCI controllers Message-ID: <20130320202816.GA18496@kroah.com> References: <871ubb83pd.fsf@turtle.gmx.de> <20130320200852.GA5899@kroah.com> <87y5dhbzgx.fsf@turtle.gmx.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87y5dhbzgx.fsf@turtle.gmx.de> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2231 Lines: 55 On Wed, Mar 20, 2013 at 09:14:38PM +0100, Sven Joachim wrote: > On 2013-03-20 21:08 +0100, Greg Kroah-Hartman wrote: > > > On Tue, Mar 19, 2013 at 10:44:30PM +0100, Sven Joachim wrote: > >> On 2013-03-19 22:00 +0100, Alan Stern wrote: > >> > >> > On Tue, 19 Mar 2013, Sven Joachim wrote: > >> > > >> >> On 2013-03-19 21:10 +0100, Alan Stern wrote: > >> >> > >> >> > On Tue, 19 Mar 2013, Sven Joachim wrote: > >> >> > > >> >> >> > In what way is resume broken? > >> >> >> > >> >> >> The kernel comes back, but the screen is black. Manually switching VT's > >> >> >> is possible, and if I type something I can see it on the screen, but > >> >> >> there is no response and the cursor does not blink. It looks as if the > >> >> >> VT is not switched backed on resume, and userspace tasks are not > >> >> >> restarted. Sysrq combinations apparently work, but produce no output. > >> >> > > >> >> > Are there any other problems? For example, even before you do a > >> >> > suspend, if you type Alt-SysRq-W do you see any processes listed? > >> >> > >> >> No. > >> >> > >> >> > There was another report on the linux-usb mailing list today of this > >> >> > same patch causing the khubd task to hang. I'm thinking that you might > >> >> > be facing a similar problem. > >> >> > >> >> Maybe, but before the suspend everything seems to be normal. > >> > > >> > Just out of curiosity, does the patch posted here: > >> > > >> > http://marc.info/?l=linux-usb&m=136361874807411&w=2 > >> > > >> > make any difference? > >> > >> It fixes the problem for me, thanks. :-) > > > > Ok, I'll postpone this patch for the next stable release, in time for > > the fix to be put in at the same time. > > I think patch 13/75 ("USB: EHCI: dont check DMA values in QH overlays") > should also be postponed then, at least Alan said so in > . Crap, I didn't postpone that one, hopefully it doesn't cause as many problems... greg k-h -- 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/