From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with SMTP id A8BAA6B0083 for ; Wed, 6 May 2009 09:39:44 -0400 (EDT) Received: from localhost (smtp.ultrahosting.com [127.0.0.1]) by smtp.ultrahosting.com (Postfix) with ESMTP id 8179B82C2D9 for ; Wed, 6 May 2009 09:52:16 -0400 (EDT) Received: from smtp.ultrahosting.com ([74.213.175.254]) by localhost (smtp.ultrahosting.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id p0v8a1-z624q for ; Wed, 6 May 2009 09:52:16 -0400 (EDT) Received: from qirst.com (unknown [74.213.171.31]) by smtp.ultrahosting.com (Postfix) with ESMTP id CD7C282C2EE for ; Wed, 6 May 2009 09:52:11 -0400 (EDT) Date: Wed, 6 May 2009 09:29:24 -0400 (EDT) From: Christoph Lameter Subject: Re: [patch 1/3] mm: SLUB fix reclaim_state In-Reply-To: <1241594430.15411.3.camel@penberg-laptop> Message-ID: References: <20090505091343.706910164@suse.de> <20090505091434.312182900@suse.de> <1241594430.15411.3.camel@penberg-laptop> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org To: Pekka Enberg Cc: npiggin@suse.de, stable@kernel.org, linux-mm@kvack.org, Matt Mackall , akpm@linux-foundation.org List-ID: On Wed, 6 May 2009, Pekka Enberg wrote: > I have applied the patch series. I see you have cc'd stable so I assume > you want this in 2.6.30, right? This seems like a rather serious bug but > I wonder why we've gotten away with it for so long? Is there a test > program or a known workload that breaks without this? You need to have a load that results in extensive slab reclaim so that the slab pages in the reclaim path become a factor. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org