From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jonathan Nieder Subject: [3.0.y, 3.2.y, 3.3.y] Re: [PATCH 04/76] ACPICA: Fix regression in FADT revision checks Date: Tue, 3 Apr 2012 14:58:44 -0500 Message-ID: <20120403195804.GA19239@burratino> References: <09f98a825a821f7a3f1b162f9ed023f37213a63b.1333101989.git.len.brown@intel.com> <1333102459-23750-1-git-send-email-lenb@kernel.org> <3e80acd1af40fcd91a200b0416a7616b20c5d647.1333101989.git.len.brown@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-iy0-f174.google.com ([209.85.210.174]:41632 "EHLO mail-iy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753240Ab2DCT7F convert rfc822-to-8bit (ORCPT ); Tue, 3 Apr 2012 15:59:05 -0400 Content-Disposition: inline In-Reply-To: Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Greg Kroah-Hartman Cc: Len Brown , linux-acpi@vger.kernel.org, linux-pm@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Julian Anastasov , Len Brown , Josh Boyer , wzab@ise.pw.edu.pl, stable@vger.kernel.org Hi Greg, Josh Boyer wrote: > On Fri, Mar 30, 2012 at 6:13 AM, Len Brown wrote: >> From: Julian Anastasov >> >> =C2=A0 =C2=A0 =C2=A0 =C2=A0commit 64b3db22c04586997ab4be46dd5a5b99f8= a2d390 (2.6.39), >> "Remove use of unreliable FADT revision field" causes regression >> for old P4 systems because now cst_control and other fields are >> not reset to 0. [...] >> =C2=A0 =C2=A0 =C2=A0 =C2=A0The fix is to update acpi_gbl_FADT.header= =2Elength after >> the original value is used to check for old revisions. >> >> https://bugzilla.kernel.org/show_bug.cgi?id=3D42700 >> https://bugzilla.redhat.com/show_bug.cgi?id=3D727865 >> >> Signed-off-by: Julian Anastasov >> Acked-by: Bob Moore >> Signed-off-by: Len Brown > > This one should go into the stable trees. Please apply 3e80acd1af40 "ACPICA: Fix regression in FADT revision checks" which is in linus's master to the 3.0.y, 3.2.y, and 3.3.y series to fix this old boot problem. (Many affected people disabled HT in the BIOS to work around it in the meantime.) WZab (cc-ed) has tested that the patch addresses the problem when applied to the 3.2.y and 3.3.y branches. [1] has details. Thanks, Jonathan [1] https://bugzilla.kernel.org/show_bug.cgi?id=3D38262 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html