linux-kernel - Re: [PATCH] oom: add sysctl to enable slab memory dump

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 for Android: free password hash cracker in your pocket

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

Date:	Fri, 24 Feb 2012 12:05:27 +0200
From:	Pekka Enberg <penberg@...nel.org>
To:	David Rientjes <rientjes@...gle.com>
Cc:	Rafael Aquini <aquini@...hat.com>, linux-mm@...ck.org,
	Randy Dunlap <rdunlap@...otime.net>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Matt Mackall <mpm@...enic.com>, Rik van Riel <riel@...hat.com>,
	Josef Bacik <josef@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] oom: add sysctl to enable slab memory dump

On Fri, Feb 24, 2012 at 12:03 PM, David Rientjes <rientjes@...gle.com> wrote:
> I like how slub handles this when it can't allocate more slab with
> slab_out_of_memory() and has the added benefit of still warning even with
> __GFP_NORETRY that the oom killer is never called for.  If there's really
> a slab leak happening, there's a good chance that this diagnostic
> information is going to be emitted by the offending cache at some point in
> time if you're using slub.  This could easily be extended to slab.c, so
> it's even more reason not to include this type of information in the oom
> killer.

Works for me. Rafael?
--
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/