linux-kernel - Re: [RFC/PATCH 1/3] SLAB: Add PageSlab checking to ksize()

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: <Pine.LNX.4.64.0805212116260.19431@schroedinger.engr.sgi.com>
Date:	Wed, 21 May 2008 21:17:24 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Pekka Enberg <penberg@...helsinki.fi>
cc:	Paul Mundt <lethal@...ux-sh.org>, linux-kernel@...r.kernel.org,
	mpm@...enic.com, dhowells@...hat.com
Subject: Re: [RFC/PATCH 1/3] SLAB: Add PageSlab checking to ksize()

On Thu, 22 May 2008, Pekka Enberg wrote:

> Paul Mundt wrote:
> > This series seems to work ok with all of SLAB/SLUB/SLOB when also
> > applying the kobjsize() patch. Without the kobjsize() patch in place,
> > SLAB and SLUB both work, while SLOB still triggers the >= MAX_ORDER
> > BUG_ON() for page cache pages. Note that this is still an improvement
> > over SLUB blowing up, as it was before, even without the kobjsize()
> > change.
> 
> That's probably due to the fact that we use PageSlab for all pages with SLUB
> and for bigblock pages in SLOB with this patch. Christoph, Matt, any
> suggestions how to fix the PageSlab check in nommu btw?

I already posted a patch and commented numerous times. What else needs 
to be said? SLUB only uses PageSlab for kmalloc <=4kb.


--
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/