Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755204Ab0BXIXh (ORCPT ); Wed, 24 Feb 2010 03:23:37 -0500 Received: from plane.gmane.org ([80.91.229.3]:37304 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752416Ab0BXIXg (ORCPT ); Wed, 24 Feb 2010 03:23:36 -0500 X-Greylist: delayed 2444 seconds by postgrey-1.27 at vger.kernel.org; Wed, 24 Feb 2010 03:23:36 EST X-SpamScore: -34 X-BigFish: VS-34(z21eWz1432R98dN936eMzz1202hzzz31j87h6bh43h61h) X-Spam-TCS-SCL: 0:0 X-FB-DOMAIN-IP-MATCH: fail Message-ID: <4B84D2EA.4090209@krogh.cc> Date: Wed, 24 Feb 2010 08:19:06 +0100 From: Jesper Krogh User-Agent: Thunderbird 2.0.0.23 (X11/20090817) MIME-Version: 1.0 To: "J. Bruce Fields" CC: Nikola Ciprich , Harry Edmon , Andrew Morton , public-linux-kernel-u79uwXL29TY76Z2rM5mHXA@plane.gmane.org, public-linux-nfs-u79uwXL29TY76Z2rM5mHXA@plane.gmane.org, public-nikola.ciprich-Jp3n8lUXroTtwjQa/ONI9g@plane.gmane.org Subject: Re: 2.6.32.2 - WARNING: at lib/kref.c:43 kref_get+0x,23/0x2b() References: <4B4F5A00.4060604@atmos.washington.edu> <20100122150325.6ad12428.akpm@linux-foundation.org> <20100127190522.GB18278@fieldses.org> <4B60C5D4.6070000@atmos.washington.edu> <20100202162228.GD4293@fieldses.org> <20100216182248.GA4922@nik-comp.linuxbox.cz> <20100216202121.GE26292@fieldses.org> <20100216202720.GB4922@nik-comp.linuxbox.cz> <20100216202947.GF26292@fieldses.org> <20100217151435.GC30897@develbox.linuxbox.cz> <20100220235105.GB15015@fieldses.org> In-Reply-To: <20100220235105.GB15015@fieldses.org> Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit X-Reverse-DNS: unknown X-TMDA-Confirmed: Wed, 24 Feb 2010 08:42:40 +0100 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1244 Lines: 36 J. Bruce Fields wrote: > On Wed, Feb 17, 2010 at 04:14:35PM +0100, Nikola Ciprich wrote: >> Well, >> I did a lot of stress tests, and it seems to be pretty random, and what's >> worse, I think it is more then one problem, oh great... >> Seems that at least one of my NFS problems was in fact caused by ext4 regression >> (what FS are you using?) >> applying this one: http://bugzilla.kernel.org/attachment.cgi?id=24975 >> improved things for me a lot (see http://bugzilla.kernel.org/show_bug.cgi?id=15231 for >> full discussion). >> I'll watch the machine for next few days and report... > > Is there *any* kernel (however old) on which you are confident you can > *not* reproduce the kref bug? I have got a bug that looks a lot like this on 2.6.32.8 yesterday less than 24 hours after booting the first 2.6.32 kernel but we have been running on 2.6.31 for 3 months before, so I'm fairly confident that it is a .31 -> .32 regression. http://lkml.org/lkml/2010/2/23/70 Jesper -- Jesper -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/