linux-kernel - Re: 2.6.32.2 - WARNING: at lib/kref.c:43 kref

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20100220235105.GB15015@fieldses.org>
Date:	Sat, 20 Feb 2010 18:51:05 -0500
From:	"J. Bruce Fields" <bfields@...ldses.org>
To:	Nikola Ciprich <extmaillist@...uxbox.cz>
Cc:	Harry Edmon <harry@...os.washington.edu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-nfs@...r.kernel.org,
	nikola.ciprich@...uxbox.cz
Subject: Re: 2.6.32.2 - WARNING: at lib/kref.c:43 kref_get+0x,23/0x2b()

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?

--b.

> regards
> nik
> 
> On Tue, Feb 16, 2010 at 03:29:47PM -0500, J. Bruce Fields wrote:
> > On Tue, Feb 16, 2010 at 09:27:20PM +0100, Nikola Ciprich wrote:
> > > > Nothing yet.  I'm taking another look.
> > > > 
> > > > Do you know what the most recent version was where you did *not* see
> > > > these warnings?
> > > well, actually I decided I'll bisect this one no matter what, so hopefully
> > > we'll see soon :)
> > > I'll report
> > 
> > That would be fantastic, thanks.  What test-case are you using?
> > 
> > Any partial information ("xxxx good, xxxx bad") would also be useful.
> > 
> > --b.
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
> > the body of a message to majordomo@...r.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> > 
> 
> -- 
> -------------------------------------
> Ing. Nikola CIPRICH
> LinuxBox.cz, s.r.o.
> 28. rijna 168, 709 01 Ostrava
> 
> tel.:   +420 596 603 142
> fax:    +420 596 621 273
> mobil:  +420 777 093 799
> www.linuxbox.cz
> 
> mobil servis: +420 737 238 656
> email servis: servis@...uxbox.cz
> -------------------------------------
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/