From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qa0-f51.google.com (mail-qa0-f51.google.com [209.85.216.51]) by kanga.kvack.org (Postfix) with ESMTP id BB2AA6B0202 for ; Thu, 20 Mar 2014 09:51:49 -0400 (EDT) Received: by mail-qa0-f51.google.com with SMTP id j7so870823qaq.10 for ; Thu, 20 Mar 2014 06:51:49 -0700 (PDT) Received: from mx1.redhat.com (mx1.redhat.com. [209.132.183.28]) by mx.google.com with ESMTP id 4si775800qat.140.2014.03.20.06.51.48 for ; Thu, 20 Mar 2014 06:51:49 -0700 (PDT) Date: Thu, 20 Mar 2014 09:51:37 -0400 From: Dave Jones Subject: Re: bad rss-counter message in 3.14rc5 Message-ID: <20140320135137.GA2263@redhat.com> References: <20140311171045.GA4693@redhat.com> <20140311173603.GG32390@moon> <20140311173917.GB4693@redhat.com> <5328F3B4.1080208@oracle.com> <20140319020602.GA29787@redhat.com> <20140319021131.GA30018@redhat.com> <20140319145200.GA4608@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Hugh Dickins Cc: Sasha Levin , Cyrill Gorcunov , Andrew Morton , Linux Kernel , linux-mm@kvack.org, Linus Torvalds , Joonsoo Kim , Bob Liu , Konstantin Khlebnikov On Wed, Mar 19, 2014 at 10:00:29PM -0700, Hugh Dickins wrote: > > This might be collateral damage from the swapops thing, I guess we won't know until > > that gets fixed, but I thought I'd mention that we might still have a problem here. > > Yes, those Bad rss-counters could well be collateral damage from the > swapops BUG. To which I believe I now have the answer: again untested, > but please give this a try... This survived an overnight run. No swapops bug, and no bad RSS. Good job :) > (It's worth saying, by the way, that these bugs are not a consequence > of recent changes at all, they've been there for ages; but trinity has > just got better at taunting remap_file_pages and the rest of mm...) Indeed. I hope to lift the covers on more stuff like this (and hopefully get it done in a more reproducable manner). A lot of the stuff trinity is doing with VM syscalls is still very naive. Dave -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org