Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753108Ab0KSLFJ (ORCPT ); Fri, 19 Nov 2010 06:05:09 -0500 Received: from mail-qw0-f46.google.com ([209.85.216.46]:47244 "EHLO mail-qw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752832Ab0KSLFI (ORCPT ); Fri, 19 Nov 2010 06:05:08 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=erki1Z1FMFhZHjQxiQD6RN94/XSjx0VThWy3HEW1h3aodgVsf+uoCuWxCCKe38ypo9 4NgZbkgLsknJ5GE33dyhV2lyxgoYZXK1SLwv8K0iJ5BI1Yn52kt/Svde8G+ZPrX0SRvB 74Gzxz0sbI2OJGN+Nvvt1piB3t49caaQQVqFc= MIME-Version: 1.0 Date: Fri, 19 Nov 2010 19:05:07 +0800 Message-ID: Subject: x86 PAE memory mode From: tingwei liu To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 549 Lines: 12 If I open PAE mode on X86_32 platform,the efficiency of mmu will be lower? Another question: Why the kernel doesn't use the flag "GFP_HIGHMEM" to get memory while it can't get memory by using flag "GFP_KERNEL",on the contrary, the kernel get memory from killing process ? Your response is pleasure. -- 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/