linux-kernel - Re: lockdep complaints in slab allocator

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]

Date:	Mon, 23 Nov 2009 15:01:57 -0600
From:	Matt Mackall <mpm@...enic.com>
To:	Pekka Enberg <penberg@...helsinki.fi>
Cc:	Christoph Lameter <cl@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>,
	paulmck@...ux.vnet.ibm.com, linux-mm@...ck.org,
	LKML <linux-kernel@...r.kernel.org>,
	Nick Piggin <npiggin@...e.de>
Subject: Re: lockdep complaints in slab allocator

On Mon, 2009-11-23 at 22:01 +0200, Pekka Enberg wrote:
> On Mon, 2009-11-23 at 21:50 +0200, Pekka Enberg wrote:
> > On Mon, 23 Nov 2009, Pekka Enberg wrote:
> > > > That turns out to be _very_ hard. How about something like the following
> > > > untested patch which delays slab_destroy() while we're under nc->lock.
> > 
> > On Mon, 2009-11-23 at 13:30 -0600, Christoph Lameter wrote:
> > > Code changes to deal with a diagnostic issue?
> > 
> > OK, fair enough. If I suffer permanent brain damage from staring at the
> > SLAB code for too long, I hope you and Matt will chip in to pay for my
> > medication.

You Europeans and your droll health care jokes.

> Maybe something like this untested patch fixes the issue...

This looks like a much better approach.

-- 
http://selenic.com : development and support for Mercurial and Linux


--
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/