Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755364AbXIUH4R (ORCPT ); Fri, 21 Sep 2007 03:56:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753780AbXIUH4F (ORCPT ); Fri, 21 Sep 2007 03:56:05 -0400 Received: from www.osadl.org ([213.239.205.134]:42640 "EHLO mail.tglx.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750856AbXIUH4E (ORCPT ); Fri, 21 Sep 2007 03:56:04 -0400 Subject: Re: 2.6.23-rc6-mm1: failure to boot on HP nx6325, no sound when booted, USB-related WARNING From: Thomas Gleixner To: Len Brown Cc: Linus Torvalds , "Rafael J. Wysocki" , Andrew Morton , Linux Kernel Mailing List , Jaroslav Kysela , Takashi Iwai , linux-usb-devel@lists.sourceforge.net, Venkatesh Pallipadi , Ingo Molnar , miklos@szeredi.hu, Len Brown , David Shaohua Li In-Reply-To: <200709201935.04400.lenb@kernel.org> References: <20070918011841.2381bd93.akpm@linux-foundation.org> <200709201935.04400.lenb@kernel.org> Content-Type: text/plain Date: Fri, 21 Sep 2007 09:56:01 +0200 Message-Id: <1190361361.3085.103.camel@chaos> Mime-Version: 1.0 X-Mailer: Evolution 2.12.0 (2.12.0-1.fc8) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1558 Lines: 38 On Thu, 2007-09-20 at 19:35 -0400, Len Brown wrote: > > > (Btw, the above commit message points to just my response with a testing > > > patch to the real email: the actual explanation of the INSANE ordering is > > > from Len Brown in > > > > > > https://lists.linux-foundation.org/pipermail/linux-pm/2006-November/004161.html > > > > > > and there Len claims that we *must* wake up CPU's early). > > > > ..and points to commit 1a38416cea8ac801ae8f261074721f35317613dc which in > > turn talks about http://bugzilla.kernel.org/show_bug.cgi?id=5651 > > > > Howerver, it seems that bugzilla entry may just be bogus. It talks about > > "it appears that some firmware in the future may depend on that sequence > > for correction operation" > > > > Len, Shaohua, what are the real issues here? > > Intel's reference BIOS for Core Duo performs some re-initialization > in _WAK that will get blow away if INIT follows _WAK. > IIR, it is related to re-initializing the thermal sensors. > I opened bug 5651 when the BIOS team informed me of this issue. > > Yes, bringing a processor offline and then online again w/o > an intervening suspend or reset would not evaluate _WAK, > and thus may still run into the issue. If this is true, then we should disable the sys/..../cpu/online entry right away. tglx - 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/