From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from d01relay02.pok.ibm.com (d01relay02.pok.ibm.com [9.56.227.234]) by e4.ny.us.ibm.com (8.12.11.20060308/8.12.11) with ESMTP id k41FlSwd026584 for ; Mon, 1 May 2006 11:47:28 -0400 Received: from d01av02.pok.ibm.com (d01av02.pok.ibm.com [9.56.224.216]) by d01relay02.pok.ibm.com (8.12.10/NCO/VER6.8) with ESMTP id k41FlPCY217598 for ; Mon, 1 May 2006 11:47:28 -0400 Received: from d01av02.pok.ibm.com (loopback [127.0.0.1]) by d01av02.pok.ibm.com (8.12.11/8.13.3) with ESMTP id k41FlPQt012222 for ; Mon, 1 May 2006 11:47:25 -0400 Subject: RE: [RFC] Hugetlb fallback to normal pages From: Dave Hansen In-Reply-To: <4sur0l$s7b0u@fmsmga001.fm.intel.com> References: <4sur0l$s7b0u@fmsmga001.fm.intel.com> Content-Type: text/plain Date: Mon, 01 May 2006 08:46:47 -0700 Message-Id: <1146498407.32079.15.camel@localhost.localdomain> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: "Chen, Kenneth W" Cc: 'Adam Litke' , linux-mm@kvack.org List-ID: On Thu, 2006-04-27 at 16:31 -0700, Chen, Kenneth W wrote: > Some arch don't support mixed page size within a range of virtual address. > So automatic fallback to smaller page won't work on that arch :-( Well, they're mixed to _some_ degree :) On ppc64, for instance, we have to do the selection in 256MB granules. It is still feasible, the cost is just much higher than it would be on x86. What are the restrictions on ia64? -- Dave -- 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