From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with ESMTP id CF5736B01E3 for ; Wed, 14 Apr 2010 08:29:12 -0400 (EDT) Date: Wed, 14 Apr 2010 13:32:29 +0100 From: Alan Cox Subject: Re: [PATCH] mm: disallow direct reclaim page writeback Message-ID: <20100414133229.134264f0@lxorguk.ukuu.org.uk> In-Reply-To: <8739yy9qnf.fsf@basil.nowhere.org> References: <1271117878-19274-1-git-send-email-david@fromorbit.com> <20100413095815.GU25756@csn.ul.ie> <20100413111902.GY2493@dastard> <20100413193428.GI25756@csn.ul.ie> <20100413202021.GZ13327@think> <877hoa9wlv.fsf@basil.nowhere.org> <20100414112015.GO13327@think> <8739yy9qnf.fsf@basil.nowhere.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: Andi Kleen Cc: Chris Mason , Mel Gorman , Dave Chinner , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org List-ID: > The only part of the 4K stack code that's good is the separate > interrupt stack, but that one should be just combined with a sane 8K > process stack. The reality is that if you are blowing a 4K process stack you are probably playing russian roulette on the current 8K x86-32 stack as well because of the non IRQ split. So it needs fixing either way -- 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