From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf1-f198.google.com (mail-pf1-f198.google.com [209.85.210.198]) by kanga.kvack.org (Postfix) with ESMTP id 574E96B026E for ; Thu, 1 Nov 2018 20:45:53 -0400 (EDT) Received: by mail-pf1-f198.google.com with SMTP id b88-v6so274860pfj.4 for ; Thu, 01 Nov 2018 17:45:53 -0700 (PDT) Received: from mail.kernel.org (mail.kernel.org. [198.145.29.99]) by mx.google.com with ESMTPS id y12-v6si6603485pgg.158.2018.11.01.17.45.52 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 01 Nov 2018 17:45:52 -0700 (PDT) Date: Thu, 1 Nov 2018 20:45:50 -0400 From: Sasha Levin Subject: Re: Will the recent memory leak fixes be backported to longterm kernels? Message-ID: <20181102004550.GD194472@sasha-vm> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Dexuan Cui Cc: Roman Gushchin , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , "kernel-team@fb.com" , Shakeel Butt , Michal Hocko , Johannes Weiner , Tejun Heo , Rik van Riel , Konstantin Khlebnikov , Matthew Wilcox , "Stable@vger.kernel.org" On Fri, Nov 02, 2018 at 12:16:02AM +0000, Dexuan Cui wrote: >Hi all, >When debugging a memory leak issue (https://github.com/coreos/bugs/issues/2516) >with v4.14.11-coreos, we noticed the same issue may have been fixed recently by >Roman in the latest mainline (i.e. Linus's master branch) according to comment #7 of >https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1792349, which lists these >patches (I'm not sure if the 5-patch list is complete): > >010cb21d4ede math64: prevent double calculation of DIV64_U64_ROUND_UP() arguments >f77d7a05670d mm: don't miss the last page because of round-off error >d18bf0af683e mm: drain memcg stocks on css offlining >71cd51b2e1ca mm: rework memcg kernel stack accounting >f3a2fccbce15 mm: slowly shrink slabs with a relatively small number of objects > >Obviously at least some of the fixes are also needed in the longterm kernels like v4.14.y, >but none of the 5 patches has the "Cc: stable@vger.kernel.org" tag? I'm wondering if >these patches will be backported to the longterm kernels. BTW, the patches are not >in v4.19, but I suppose they will be in v4.19.1-rc1? There was an issue with this series: https://lkml.org/lkml/2018/10/23/586, so it's waiting on a fix to be properly tested. -- Thanks, Sasha