From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754081Ab2DCDBt (ORCPT ); Mon, 2 Apr 2012 23:01:49 -0400 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:42197 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753391Ab2DCDBq (ORCPT ); Mon, 2 Apr 2012 23:01:46 -0400 Message-ID: <1333422093.443.32.camel@deadeye> Subject: Re: [ 101/175] mm: vmscan: forcibly scan highmem if there are too many buffer_heads pinning highmem From: Ben Hutchings To: Mel Gorman Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Stuart Foster , Hugh Dickins , Johannes Weiner , Rik van Riel , Christoph Lameter , Greg KH Date: Tue, 03 Apr 2012 04:01:33 +0100 In-Reply-To: <20120330194845.531765417@linuxfoundation.org> References: <20120330194845.531765417@linuxfoundation.org> Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="=-cdBgVJGJKkohJHEAaEc0" X-Mailer: Evolution 3.2.2-1 Mime-Version: 1.0 X-SA-Exim-Connect-IP: 2001:470:1f08:1539:21c:bfff:fe03:f805 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-cdBgVJGJKkohJHEAaEc0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Fri, 2012-03-30 at 12:50 -0700, Greg KH wrote: > 3.3-stable review patch. If anyone has any objections, please let me kno= w. >=20 > ------------------ >=20 > From: Mel Gorman >=20 > commit cc715d99e529d470dde2f33a6614f255adea71f3 upstream. >=20 > Stuart Foster reported on bugzilla that copying large amounts of data > from NTFS caused an OOM kill on 32-bit X86 with 16G of memory. Andrew > Morton correctly identified that the problem was NTFS was using 512 > blocks meaning each page had 8 buffer_heads in low memory pinning it. I notice that this was not applied to 3.0.26 or 3.2.14. [...] > Addresses https://bugzilla.kernel.org/show_bug.cgi?id=3D42578 [...] but this bug was reported against 3.1.9, so the fix is presumably needed for 3.2 at least. Presumably the upstream change doesn't apply cleanly and would need to be backported. Is anyone planning to do that? Ben. --=20 Ben Hutchings Reality is just a crutch for people who can't handle science fiction. --=-cdBgVJGJKkohJHEAaEc0 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIVAwUAT3poDee/yOyVhhEJAQonXhAAwrCxHRjy5oef5bTEC+tj0Lu3Ve/bUfTW V3pFuiAK4FUZMpbDf1XIYk9Cu6EYmooJXpsIB6csO/C9g4INHYcnRnqNHaLoCCv0 VML3vSKv8iSIUF7VmSgCGWncEEl/OOH6i56C2ZEwWdC4UVEFtjvDAtji90j7AhX+ 14PCDMeZxkSKMgDLaXnWwTh08llIX3P7rDZek635Z952bM3rGlzMNaBcj5N4yn+h XZ/AWbhqezLGJnWhqkSbS1d2tmlqBjNCBku5dekwUsonJ5L4xMF4bkDGbUiXTnNb Gbiits9e3SsMgV/+b96WDpDanvKhRq+cgTNV7NBVjFQ4mFrgVofGls9x/AEjX0rq WCw7GitS4iGbpwGuhVGe492KBD0xtO9opP0kDhYUZ2hEV9ZBJUpFCwjcMid0blDk yOaU6puOS6UX4F0bMIIAM3p1ctPU1jVE2pVx6n6ZLhO2dzbex91JdWtBrMOUj+BU yqAzRzv3ukD6mO4qsMCJSPIjDovVbuwex11zL4xcgO53yiwiE+hF5vWOSGLPAr2Q 0vLKagEM4LeL8YmxtdbD3mYWkmOCKawUlPq0nWlSBxCr7O1UoRBk0F/lzi3dTYIN hcQo8tiyT5oqZGmQlQPKFC7B1sMHSB3/LZu4JLnt8DYvQcr5MZPj/4IvBV+B3ppr DlgSuGDgJD8= =/aDQ -----END PGP SIGNATURE----- --=-cdBgVJGJKkohJHEAaEc0--