From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755958Ab3GCLZv (ORCPT ); Wed, 3 Jul 2013 07:25:51 -0400 Received: from mail-ea0-f176.google.com ([209.85.215.176]:57077 "EHLO mail-ea0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755831Ab3GCLZt (ORCPT ); Wed, 3 Jul 2013 07:25:49 -0400 Date: Wed, 3 Jul 2013 12:25:41 +0100 From: Steve Capper To: Stephen Rothwell , Joern Engel Cc: linux-next@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: linux-next: Tree for Jul 3 Message-ID: <20130703112539.GA32584@linaro.org> References: <20130703180620.6919bf7d7f13f7ed21046c68@canb.auug.org.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130703180620.6919bf7d7f13f7ed21046c68@canb.auug.org.au> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jul 03, 2013 at 06:06:20PM +1000, Stephen Rothwell wrote: > Hi all, > > Changes since 20130702: > > The powerpc tree lost its build failure. > > The device-mapper tree gained a conflict against the md tree. > > The net-next tree gained a build failure for which I cherry-picked an > upcoming fix. > > The trivial tree gained conflicts against the btrfs and Linus' trees. > > The xen-two tree gained a conflict against the tip tree. > > The akpm tree lost some patches that turned up elsewhere. > > The cpuinit tree lost a patch that turned up elsewhere. > > ---------------------------------------------------------------------------- > Hi, Today's linux-next appears to introduce some BUGs when running the libhugetlbfs testsuite (under both ARM64 and x86_64): [ 94.320661] BUG: Bad rss-counter state mm:ffff880119461040 idx:1 val:-512 [ 94.330346] BUG: Bad rss-counter state mm:ffff880119460680 idx:1 val:-2560 [ 94.341746] BUG: Bad rss-counter state mm:ffff880119460d00 idx:1 val:-512 [ 94.347518] BUG: Bad rss-counter state mm:ffff880119460d00 idx:1 val:-512 [ 94.415203] BUG: Bad rss-counter state mm:ffff8801194f9040 idx:1 val:-1024 I've bisected this to commit: commit 446313e3e4e7274c4d1e449d107fab6c041ec59c hugetlb: properly account rss The bad counter values I get are all negative. To reproduce this, just run through the latest libhugetlbfs test suite, these warnings appear pretty much immediately. (I set aside 200 huge pages first): http://libhugetlbfs.sourceforge.net/ Reverting this commit allows the test suite to run without problems. Cheers, -- Steve