From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx123.postini.com [74.125.245.123]) by kanga.kvack.org (Postfix) with SMTP id 909DB6B0008 for ; Thu, 31 Jan 2013 05:52:29 -0500 (EST) Date: Thu, 31 Jan 2013 11:52:27 +0100 From: Andi Kleen Subject: Re: Support variable-sized huge pages Message-ID: <20130131105227.GI30577@one.firstfloor.org> References: <1359620590.1391.5.camel@kernel> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1359620590.1391.5.camel@kernel> Sender: owner-linux-mm@kvack.org List-ID: To: Ric Mason Cc: linux-mm@kvack.org, Andi Kleen , Hillf Danton On Thu, Jan 31, 2013 at 02:23:10AM -0600, Ric Mason wrote: > Hi all, > > It seems that Andi's "Support more pagesizes for > MAP_HUGETLB/SHM_HUGETLB" patch has already merged. According to the > patch, x86 will support 2MB and 1GB huge pages. But I just see > hugepages-2048kB under /sys/kernel/mm/hugepages/ on my x86_32 PAE desktop. > Where is 1GB huge pages? 1GB pages are only supported under 64bit kernels, and also only if you allocate them explicitely with boot options. -Andi -- ak@linux.intel.com -- Speaking for myself only. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org