From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sebastian Gottschall Subject: Re: Revert c5ad33184354260be6d05de57e46a5498692f6d6 "mm/swap.c: flush lru pvecs on compound page arrival" from stable tree? Was:[osstest-admin@xenproject.org: [Xen-devel] [linux-4.1 bisection] complete test-amd64-i386-qemut-rhel6hvm-amd] Date: Thu, 21 Jul 2016 19:24:13 +0200 Message-ID: References: <20160718153046.GA26126@char.us.oracle.com> <20160718161805.GA18050@char.us.oracle.com> <73189037-1a4e-915a-7120-112f2afe3342@dd-wrt.com> <22416.50164.521430.604730@mariner.uk.xensource.com> <20160721142328.GO26379@dhcp22.suse.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <20160721142328.GO26379@dhcp22.suse.cz> Sender: stable-owner@vger.kernel.org To: Michal Hocko , Ian Jackson Cc: "stable@vger.kernel.org" , Konrad Rzeszutek Wilk , "Odzioba, Lukasz" , "linux-kernel@vger.kernel.org" , "xen-devel@lists.xensource.com" , "boris.ostrovsky@oracle.com" , "david.vrabel@citrix.com" , "akpm@linux-foundation.org" List-Id: xen-devel@lists.xenproject.org Am 21.07.2016 um 16:23 schrieb Michal Hocko: > On Thu 21-07-16 13:45:40, Ian Jackson wrote: >> I see that linux-4.1.y is still at 5880876e9469 which has the seriou= s >> bug introduced by the backport c5ad33184354 "mm/swap.c: flush lru >> pvecs on compound page arrival". >> >> The analogous problem is also still affecting at least linux-3.18.y. >> >> Is there some problem with reverting this patch in the stable >> branches ? > Sasha has mentioned he queued up the follow up fix. I am not sure who= is > the 3.18 maintainer but he should do the same. > > I am slightly worried that Sasha's email is bouncing for several days > and I am not sure who is his backup. For the time being I would just > suggest doing a local revert or apply Steven's patch from > http://www.spinics.net/lists/stable/msg138760.html i patched it it locally and it resolved the issue in 3.18 --=20 Mit freundlichen Gr=FCssen / Regards Sebastian Gottschall / CTO NewMedia-NET GmbH - DD-WRT =46irmensitz: Berliner Ring 101, 64625 Bensheim Registergericht: Amtsgericht Darmstadt, HRB 25473 Gesch=E4ftsf=FChrer: Peter Steinh=E4user, Christian Scheele http://www.dd-wrt.com email: s.gottschall@dd-wrt.com Tel.: +496251-582650 / Fax: +496251-5826565