From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751224AbdBDUPF (ORCPT ); Sat, 4 Feb 2017 15:15:05 -0500 Received: from shelob.surriel.com ([96.67.55.147]:43290 "EHLO shelob.surriel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750921AbdBDUPE (ORCPT ); Sat, 4 Feb 2017 15:15:04 -0500 X-Greylist: delayed 535 seconds by postgrey-1.27 at vger.kernel.org; Sat, 04 Feb 2017 15:15:03 EST Message-ID: <1486238743.2096.2.camel@surriel.com> Subject: Re: mm, vmscan: commit makes PAE kernel crash nightly (bisected) From: Rik van Riel To: Trevor Cordes , Michal Hocko Cc: Mel Gorman , linux-kernel@vger.kernel.org, Joonsoo Kim , Minchan Kim , Srikar Dronamraju Date: Sat, 04 Feb 2017 15:05:43 -0500 In-Reply-To: <20170203183654.1821addc@pog.tecnopolis.ca> References: <20170120003544.7e6e34d1@pog.tecnopolis.ca> <20170120110232.y7xd4b7wtwqslgnw@techsingularity.net> <20170120155553.gjv2x5eycvdudnil@techsingularity.net> <20170122184559.0b5c0fd8@pog.tecnopolis.ca> <20170123104858.gpjy25y2ogju3gkg@techsingularity.net> <20170125040246.5b211135@pog.tecnopolis.ca> <20170125120420.GM32377@dhcp22.suse.cz> <20170129165003.31bd8384@pog.tecnopolis.ca> <20170130075132.GB8443@dhcp22.suse.cz> <20170201032928.5d58a7c5@pog.tecnopolis.ca> <20170201101444.GJ5977@dhcp22.suse.cz> <20170203183654.1821addc@pog.tecnopolis.ca> Content-Type: multipart/signed; micalg="pgp-sha256"; protocol="application/pgp-signature"; boundary="=-7EQ24eP/yuL3RHhcM01p" X-Mailer: Evolution 3.22.3 (3.22.3-2.fc25) Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-7EQ24eP/yuL3RHhcM01p Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Fri, 2017-02-03 at 18:36 -0600, Trevor Cordes wrote: > On 2017-02-01 Michal Hocko wrote: > > On Wed 01-02-17 03:29:28, Trevor Cordes wrote: > > > On 2017-01-30 Michal Hocko wrote:=C2=A0=C2=A0 > >=20 > > [...] > > > > Testing with Valinall rc6 released just yesterday would be a > > > > good > > > > fit. There are some more fixes sitting on mmotm on top and > > > > maybe > > > > we want some of them in finall 4.10. Anyway all those pending > > > > changes should be merged in the next merge window - aka 4.11=C2=A0= =C2=A0 > > >=20 > > > After 30 hours of running vanilla 4.10.0-rc6, the box started to > > > go > > > bonkers at 3am, so vanilla does not fix the bug :-(=C2=A0=C2=A0But, t= he bug > > > hit differently this time, the box just bogged down like crazy > > > and > > > gave really weird top output.=C2=A0=C2=A0Starting nano would take 10s= , then > > > would run full speed, then when saving a file would take 5s. > > > Starting any prog not in cache took equally as long.=C2=A0=C2=A0 > >=20 > > Could you try with to_test/linus-tree/oom_hickups branch on the > > same > > git tree? I have cherry-picked "mm, vmscan: consider eligible zones > > in > > get_scan_count" which might be the missing part. >=20 > I ran to_test/linus-tree/oom_hickups branch (4.10.0-rc6+) for 50 > hours > and it does NOT have the bug!=C2=A0=C2=A0No problems at all so far. >=20 > So I think whatever to_test/linus-tree/oom_hickups has that since-4.9 > has that vanilla 4.10-rc6 does *not* have is indeed the fix. >=20 > For my reference, and I know you guys aren't distro-specific, what is > the best way to get this fix into Fedora 24 (currently 4.9)?=C2=A0=C2=A0C= an it > be > backported or made as a patch they can apply to 4.9?=C2=A0=C2=A0Or 4.10? The best way would be to open a Fedora bug, and CC me on it :) --=20 All Rights Reversed. --=-7EQ24eP/yuL3RHhcM01p Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAABCAAGBQJYljQYAAoJEM553pKExN6DCroIAIVoGvZgpd4yQ6LB8QPumX9g C4ua2Yjoy75SsvhAgZj0T0FaIiPa3HVRCMouVpv9Xa7ykzBh8VBaqLqAHtqElIcY ZBshow1S12Vd9h+qy0/LMT8fy6AXvka2Px2agT8KBlZKdTWWaHhvNFErchJ/57ff 0Co6bC+llr064KfHHvCZDmuGy7fe2LeqEjySYjDrwKgvOn3x6GPTnVGrWl0IUNOL qdOeRmwUljVBKZWRHWCKDOlsN4eiQvLWDJKpKBTTssXFWlC4/TaAivbe8DCoKTCz 4seugMuO//ERhvNhnsFMVvzG339aEjKrM1mE0atee5j164t0tBogoF+lTigYb3k= =3ZFP -----END PGP SIGNATURE----- --=-7EQ24eP/yuL3RHhcM01p--