Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934443AbZJJRvL (ORCPT ); Sat, 10 Oct 2009 13:51:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933829AbZJJRvI (ORCPT ); Sat, 10 Oct 2009 13:51:08 -0400 Received: from sj-iport-6.cisco.com ([171.71.176.117]:12935 "EHLO sj-iport-6.cisco.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933898AbZJJRvH (ORCPT ); Sat, 10 Oct 2009 13:51:07 -0400 Authentication-Results: sj-iport-6.cisco.com; dkim=neutral (message not signed) header.i=none X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ApoEAGxm0EqrR7Ht/2dsb2JhbADAAJdihC0E X-IronPort-AV: E=Sophos;i="4.44,538,1249257600"; d="scan'208";a="406257740" From: Roland Dreier To: Arjan van de Ven Cc: Thomas Schlichter , linux-kernel@vger.kernel.org, Thomas Hellstrom Subject: Re: [RFC Patch] use MTRR for write combining if PAT is not available References: <200910100322.36857.thomas.schlichter@web.de> <4AD00C89.3000503@linux.intel.com> <200910101031.15620.thomas.schlichter@web.de> <4AD0ABFF.1020209@linux.intel.com> X-Message-Flag: Warning: May contain useful information Date: Sat, 10 Oct 2009 10:50:29 -0700 In-Reply-To: <4AD0ABFF.1020209@linux.intel.com> (Arjan van de Ven's message of "Sat, 10 Oct 2009 08:45:03 -0700") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.91 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-OriginalArrivalTime: 10 Oct 2009 17:50:29.0611 (UTC) FILETIME=[27F99BB0:01CA49D2] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 634 Lines: 16 > > Hmm, my CPU (VIA Nano) seems to support PAT, but Ubuntu disables this > > feature in its kernel config. I'm using 9.04, but even 9.10 will have PAT > > disabled: > > that sounds like a bad idea. But to each distro their own I suppose. Seems that Ubuntu has caught this issue, and it will probably be resolved: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/446480 - R. -- 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/