From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757472AbYICRr0 (ORCPT ); Wed, 3 Sep 2008 13:47:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754033AbYICRrK (ORCPT ); Wed, 3 Sep 2008 13:47:10 -0400 Received: from ns1.suse.de ([195.135.220.2]:53328 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752968AbYICRrI (ORCPT ); Wed, 3 Sep 2008 13:47:08 -0400 Date: Wed, 3 Sep 2008 10:26:50 -0700 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: Justin Forbes , Zwane Mwaikambo , "Theodore Ts'o" , Randy Dunlap , Dave Jones , Chuck Wolber , Chris Wedgwood , Michael Krufky , Chuck Ebbert , Domenico Andreoli , Willy Tarreau , Rodrigo Rubira Branco , Jake Edge , Eugene Teo , torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, mingo@elte.hu, Yinghai Lu Subject: [patch 40/42] x86: work around MTRR mask setting, v2 Message-ID: <20080903172650.GO7731@suse.de> References: <20080903171927.534216229@mini.kroah.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline; filename="x86-work-around-mtrr-mask-setting-v2.patch" In-Reply-To: <20080903172447.GA7731@suse.de> User-Agent: Mutt/1.5.16 (2007-06-09) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2.6.26-stable review patch. If anyone has any objections, please let us know. ------------------ From: Ingo Molnar commit 9754a5b840a209bc1f192d59f63e81b698a55ac8 upstream x86: work around MTRR mask setting, v2 improve the debug printout: - make it actually display something - print it only once would be nice to have a WARN_ONCE() facility, to feed such things to kerneloops.org. Signed-off-by: Ingo Molnar Cc: Yinghai Lu Signed-off-by: Greg Kroah-Hartman --- arch/x86/kernel/cpu/mtrr/generic.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) --- a/arch/x86/kernel/cpu/mtrr/generic.c +++ b/arch/x86/kernel/cpu/mtrr/generic.c @@ -387,7 +387,12 @@ static void generic_get_mtrr(unsigned in tmp |= ~((1<<(hi - 1)) - 1); if (tmp != mask_lo) { - WARN_ON("mtrr: your BIOS has set up an incorrect mask, fixing it up.\n"); + static int once = 1; + + if (once) { + printk(KERN_INFO "mtrr: your BIOS has set up an incorrect mask, fixing it up.\n"); + once = 0; + } mask_lo = tmp; } } --