From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756991Ab2DFBKS (ORCPT ); Thu, 5 Apr 2012 21:10:18 -0400 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:42211 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753867Ab2DFBKQ (ORCPT ); Thu, 5 Apr 2012 21:10:16 -0400 Message-ID: <1333674603.443.43.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 , Nikola Ciprich , Greg KH Date: Fri, 06 Apr 2012 02:10:03 +0100 In-Reply-To: <20120405202435.GA11562@suse.de> References: <20120330194845.531765417@linuxfoundation.org> <1333422093.443.32.camel@deadeye> <20120405202435.GA11562@suse.de> Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="=-LfEy5Qp4WzyXjVJvixVC" 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 --=-LfEy5Qp4WzyXjVJvixVC Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Thu, 2012-04-05 at 13:31 -0700, Mel Gorman wrote: [...] > > > Addresses https://bugzilla.kernel.org/show_bug.cgi?id=3D42578 > > [...] > >=20 > > but this bug was reported against 3.1.9, so the fix is presumably neede= d > > for 3.2 at least. > >=20 > > Presumably the upstream change doesn't apply cleanly and would need to > > be backported. Is anyone planning to do that? > >=20 >=20 > It probably does not apply cleanly and considering how the bug is > triggered I was not treating it as a high priority. Nikola Ciprich > (added to cc) had said that he might try backporting it and I would > review the result. I have not heard anything since. I can take a look at > backporting it next week if it is considered a common problem. I really don't know; I'm happy to leave it to you and the other mm maintainers to decide if it's worthwhile. Ben. --=20 Ben Hutchings Reality is just a crutch for people who can't handle science fiction. --=-LfEy5Qp4WzyXjVJvixVC 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) iQIVAwUAT35Ca+e/yOyVhhEJAQqlOA//Wqh3rUsSbzyQgp0bNPbVmZrFo+3o/VQC nwG/KUY+t6xANhdER+Cu3FDizUZswK5z442U1ihV3a6QoVnJZ+HwfAarfAfMm7G9 2vJ6NFSdMOobd0FgrZi7xedtBNzLk5esbWd9Pb8v4KcZTDW34oni7VQhBXew0muq 3EsTpLq2/vt0CUFXyxiRr3CoE4QIRwZCNxDzpdrQb5yIwLp3X7u+nJkAdWRDcpri rgCz6GQ6FjgC/1jCGejdg838/ofzlxIIbwUtfgqo3+JXCDq51lq8T8NtHxr7XsXA bH3qVo9AxJpKh3mszuwuZBs3aKKHamhc8Ohgdq96olYYuNi3+uYn70lm4JZwXYQf qtlSxHZtdOQtnbn27a9agSlK5wfH5ic/9PUTwmqNYCdU5ILkc+fVFN/WrNyHqgdo poBmHWw7CHvaQ9LAImOhMqKaF9JdXOTl92WX1Yif6lTHsblWW+HU2C8dvuq16LA0 bRO2mIQvpbwTxCc67CnGJpuhnhuThVS4IxoveaA1EHZ1T/OffplnL5upPWGB9y3Y KBY380V/P20440fMgUlhLYo18SS1qlS0c104g5yfHU3UCto5Ne5b15npwwaXmZRg XO8HWhSWC4CKOS9AD3b3GhnNbQbd7UUN4gsVzvLl9xvHBwRwRYcrkbQt/a1SzJwv 16IG6XIhvqg= =RLi7 -----END PGP SIGNATURE----- --=-LfEy5Qp4WzyXjVJvixVC--