Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261251AbTEKVu2 (ORCPT ); Sun, 11 May 2003 17:50:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261254AbTEKVu2 (ORCPT ); Sun, 11 May 2003 17:50:28 -0400 Received: from pc2-cwma1-4-cust86.swan.cable.ntl.com ([213.105.254.86]:13973 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S261251AbTEKVu2 (ORCPT ); Sun, 11 May 2003 17:50:28 -0400 Subject: Re: [PATCH] restore sysenter MSRs at resume From: Alan Cox To: Linus Torvalds Cc: Mikael Pettersson , Pavel Machek , Linux Kernel Mailing List In-Reply-To: References: Content-Type: text/plain Content-Transfer-Encoding: 7bit Organization: Message-Id: <1052687076.30359.2.camel@dhcp22.swansea.linux.org.uk> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.2 (1.2.2-5) Date: 11 May 2003 22:04:37 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 785 Lines: 17 On Sul, 2003-05-11 at 20:01, Linus Torvalds wrote: > However, the fact that the SYSENTER MSR needs to be restored makes me > suspect that the other MSR/MTRR also will need restoring. I don't see > where we'd be doing that, but it sounds to me like it should be done here > too.. Some laptops certainly require the MTRR restore to happen. MSRs are mostly less of a problem because the profiling stuff is broken on PIII unless you disable/re-enable it across power save anyway. Some laptops also lose all the AGP settings in the chipset. - 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/