From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt0-f200.google.com (mail-qt0-f200.google.com [209.85.216.200]) by kanga.kvack.org (Postfix) with ESMTP id 5F22A6B0005 for ; Tue, 2 Aug 2016 05:13:45 -0400 (EDT) Received: by mail-qt0-f200.google.com with SMTP id i27so294568989qte.3 for ; Tue, 02 Aug 2016 02:13:45 -0700 (PDT) Received: from mail-qt0-x233.google.com (mail-qt0-x233.google.com. [2607:f8b0:400d:c0d::233]) by mx.google.com with ESMTPS id z45si1061042qta.27.2016.08.02.02.13.44 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 02 Aug 2016 02:13:44 -0700 (PDT) Received: by mail-qt0-x233.google.com with SMTP id w38so119773171qtb.0 for ; Tue, 02 Aug 2016 02:13:44 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <15aabbf1-4036-cd15-a593-3ebfe429e948@mejor.pl> References: <2f8a65db-e5a8-75f0-8c08-daa41e1cd3ba@mejor.pl> <15aabbf1-4036-cd15-a593-3ebfe429e948@mejor.pl> From: Vitaly Wool Date: Tue, 2 Aug 2016 11:13:43 +0200 Message-ID: Subject: Re: Choosing z3fold allocator in zswap gives WARNING: CPU: 0 PID: 5140 at mm/zswap.c:503 __zswap_pool_current+0x56/0x60 Content-Type: multipart/alternative; boundary=001a113ad73e331e0905391322d2 Sender: owner-linux-mm@kvack.org List-ID: To: =?UTF-8?Q?Marcin_Miros=C5=82aw?= Cc: Linux-MM --001a113ad73e331e0905391322d2 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On Mon, Aug 1, 2016 at 11:21 AM, Marcin Miros=C5=82aw wro= te: > W dniu 01.08.2016 o 11:08, Vitaly Wool pisze: > > Hi Marcin, > > > > Den 1 aug. 2016 11:04 fm skrev "Marcin Miros=C5=82aw" > >: > >> > >> Hi! > >> I'm testing kernel-git > >> (git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > > , a= t > >> 07f00f06ba9a5533d6650d46d3e938f6cbeee97e ) because I noticed strange O= OM > >> behavior in kernel 4.7.0. As for now I can't reproduce problems with > >> OOM, probably it's fixed now. > >> But now I wanted to try z3fold with zswap. When I did `echo z3fold > > >> /sys/module/zswap/parameters/zpool` I got trace from dmesg: > > > > Could you please give more info on how to reproduce this? > > Nothing special. Just rebooted server (vm on kvm), started services and > issued `echo z3fold > ...` > Well, first of all this is Intel right? ~vitaly --001a113ad73e331e0905391322d2 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable


On Mon, Aug 1, 2016 at 11:21 AM, Marcin Miros=C5=82aw <marcin@mejor.pl> wrote:
W dniu 01.08.2016 o = 11:08, Vitaly Wool pisze:
> Hi Marcin,
>
> Den 1 aug. 2016 11:04 fm skrev "Marcin Miros=C5=82aw" <marcin@mejor.pl
> <mailto:marcin@mejor.pl>>:
>>
>> Hi!
>> I'm testing kernel-git
>> (git://git.kernel.org/pub/= scm/linux/kernel/git/torvalds/linux.git
> <http://git.kernel.o= rg/pub/scm/linux/kernel/git/torvalds/linux.git> , at
>> 07f00f06ba9a5533d6650d46d3e938f6cbeee97e ) becaus= e I noticed strange OOM
>> behavior in kernel 4.7.0. As for now I can't reproduce problem= s with
>> OOM, probably it's fixed now.
>> But now I wanted to try z3fold with zswap. When I did `echo z3fold= >
>> /sys/module/zswap/parameters/zpool` I got trace from dmesg:
>
> Could you please give more info on how to reproduce this?

Nothing special. Just rebooted server (vm on kvm), started services = and
issued `echo z3fold > ...`

Well, fir= st of all this is Intel right?

~vitaly=C2=A0
=
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