linux-kernel - Re: [RFC, PATCH] SLAB : [NUMA] keep nodeid in struct page instead of struct slab

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:	Wed, 21 Mar 2007 09:27:45 -0700 (PDT)
From:	Christoph Lameter <christoph@...eter.com>
To:	Andi Kleen <andi@...stfloor.org>
cc:	Pekka J Enberg <penberg@...helsinki.fi>,
	Eric Dumazet <dada1@...mosbay.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux kernel <linux-kernel@...r.kernel.org>
Subject: Re: [RFC, PATCH] SLAB : [NUMA] keep nodeid in struct page instead
 of struct slab

On Wed, 21 Mar 2007, Andi Kleen wrote:

> On Wed, Mar 21, 2007 at 05:42:22PM +0200, Pekka J Enberg wrote:
> > On Wed, 21 Mar 2007, Christoph Lameter wrote:
> > > None of that please. The page flags already contain a node number that is 
> > > accessible via page_to_nid(). Just make sure that we never put a slab onto 
> > > the wrong node.
> > 
> > Oh well, here's a patch to find out. (I don't have a NUMA box.)
> 
> You can always use numa emulation on x86-64.  Boot with numa=fake=NODES

This wont help you to debug strange fallback scenarios on unusual NUMA 
platforms.

-
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/