From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754351AbaCKNmE (ORCPT ); Tue, 11 Mar 2014 09:42:04 -0400 Received: from mail-la0-f46.google.com ([209.85.215.46]:42479 "EHLO mail-la0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752056AbaCKNmB (ORCPT ); Tue, 11 Mar 2014 09:42:01 -0400 Date: Tue, 11 Mar 2014 17:41:58 +0400 From: Cyrill Gorcunov To: Sasha Levin Cc: Dave Jones , Andrew Morton , Linux Kernel , linux-mm@kvack.org, Linus Torvalds , Joonsoo Kim , Bob Liu , Konstantin Khlebnikov Subject: Re: bad rss-counter message in 3.14rc5 Message-ID: <20140311134158.GD32390@moon> References: <20140305175725.GB16335@redhat.com> <20140307002210.GA26603@redhat.com> <20140311024906.GA9191@redhat.com> <20140310201340.81994295.akpm@linux-foundation.org> <20140310214612.3b4de36a.akpm@linux-foundation.org> <20140311045109.GB12551@redhat.com> <20140310220158.7e8b7f2a.akpm@linux-foundation.org> <20140311053017.GB14329@redhat.com> <20140311132024.GC32390@moon> <531F0E39.9020100@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <531F0E39.9020100@oracle.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Mar 11, 2014 at 09:23:05AM -0400, Sasha Levin wrote: > >> > >>Ok, with move_pages excluded it still oopses. > > > >Dave, is it possible to somehow figure out was someone reading pagemap file > >at moment of the bug triggering? > > We can sprinkle printk()s wherever might be useful, might not be 100% accurate but > should be close enough to confirm/deny the theory. After reading some more, I suppose the idea I had is wrong, investigating. Will ping if I find something.