From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-we0-f178.google.com (mail-we0-f178.google.com [74.125.82.178]) by kanga.kvack.org (Postfix) with ESMTP id 0F4726B005A for ; Wed, 4 Jun 2014 15:12:42 -0400 (EDT) Received: by mail-we0-f178.google.com with SMTP id u56so8930623wes.37 for ; Wed, 04 Jun 2014 12:12:41 -0700 (PDT) Received: from mx1.redhat.com (mx1.redhat.com. [209.132.183.28]) by mx.google.com with ESMTP id t7si36833053wiy.24.2014.06.04.12.12.40 for ; Wed, 04 Jun 2014 12:12:41 -0700 (PDT) Date: Wed, 4 Jun 2014 15:12:28 -0400 From: Dave Jones Subject: Re: Bad rss-counter is back on 3.14-stable Message-ID: <20140604191228.GB12375@redhat.com> References: <20140604182739.GA30340@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140604182739.GA30340@kroah.com> Sender: owner-linux-mm@kvack.org List-ID: To: Greg KH Cc: linux-mm@kvack.org, Linux Kernel , Brandon Philips On Wed, Jun 04, 2014 at 11:27:39AM -0700, Greg KH wrote: > Hi all, > > Dave, I saw you mention that you were seeing the "Bad rss-counter" line > on 3.15-rc1, but I couldn't find any follow-up on this to see if anyone > figured it out, or did it just "magically" go away? > > I ask as Brandon is seeing this same message a lot on a 3.14.4 kernel, > causing system crashes and problems: > > [16591492.449718] BUG: Bad rss-counter state mm:ffff8801ced99880 idx:0 val:-1836508 > [16591492.449737] BUG: Bad rss-counter state mm:ffff8801ced99880 idx:1 val:1836508 > > [20783350.461716] BUG: Bad rss-counter state mm:ffff8801d2b1dc00 idx:0 val:-52518 > [20783350.461734] BUG: Bad rss-counter state mm:ffff8801d2b1dc00 idx:1 val:52518 > > [21393387.112302] BUG: Bad rss-counter state mm:ffff8801d0104e00 idx:0 val:-1767569 > [21393387.112321] BUG: Bad rss-counter state mm:ffff8801d0104e00 idx:1 val:1767569 > > [21430098.512837] BUG: Bad rss-counter state mm:ffff880100036680 idx:0 val:-2946 > [21430098.512854] BUG: Bad rss-counter state mm:ffff880100036680 idx:1 val:2946 > > Anyone have any ideas of a 3.15-rc patch I should be including in > 3.14-stable to resolve this? hard to tell if they were the same issues I was seeing without the full backtrace. The only bad rss bugs that I recall being fixed for sure were the ones that Hugh nailed down right before 3.14 (887843961c4b) I've not seen anything in a while, but that may just be because I end up hitting other bugs before they get a chance to show. Brandon, what kind of workload is that machine doing ? I wonder if I can add something to trinity to make it provoke it. 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