From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750717AbVHPX0p (ORCPT ); Tue, 16 Aug 2005 19:26:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750733AbVHPX0p (ORCPT ); Tue, 16 Aug 2005 19:26:45 -0400 Received: from ns.miraclelinux.com ([219.118.163.66]:40861 "EHLO mail01.miraclelinux.com") by vger.kernel.org with ESMTP id S1750717AbVHPX0o (ORCPT ); Tue, 16 Aug 2005 19:26:44 -0400 Date: Wed, 17 Aug 2005 08:21:53 +0900 (JST) Message-Id: <20050817.082153.719902707.hyoshiok@miraclelinux.com> To: 76306.1226@compuserve.com Cc: lkml.hyoshiok@gmail.com, taka@valinux.co.jp, arjan@infradead.org, linux-kernel@vger.kernel.org, hyoshiok@miraclelinux.com Subject: Re: [RFC] [PATCH] cache pollution aware __copy_from_user_ll() From: Hiro Yoshioka In-Reply-To: <200508161412_MC3-1-A759-465F@compuserve.com> References: <200508161412_MC3-1-A759-465F@compuserve.com> X-Mailer: Mew version 3.3 on XEmacs 21.4.13 (Rational FORTRAN) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Chuck, From: Chuck Ebbert <76306.1226@compuserve.com> > On Tue, 16 Aug 2005 at 19:16:17 +0900 (JST), Hiro Yoshioka wrote: > > oh, really? Does the linux kernel take care of > > SSE save/restore on a task switch? > > Check out XMMS_SAVE and XMMS_RESTORE in include/asm-i386/xor.h Thanks for your suggestion. But it seems to me it won't help when we have a page fault or other exeptions. Regards, Hiro