From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Sat, 3 May 2003 01:35:25 +1000 From: Anton Blanchard Subject: Re: 2.5.68-mm4 Message-ID: <20030502153525.GA11939@krispykreme> References: <20030502020149.1ec3e54f.akpm@digeo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030502020149.1ec3e54f.akpm@digeo.com> Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: Hi, > . Included the `kexec' patch - load Linux from Linux. Various people want > this for various reasons. I like the idea of going from a login prompt to > "Calibrating delay loop" in 0.5 seconds. One thing that bothers me about kexec is how we grab low pages in kimage_alloc_page(). On a partitioned ppc64 box I will need to grab memory in the low 256MB and the machine might have 500GB of memory free. Thats going to take some time :) Id hate to introduce a separate zone just for this sort of stuff (we currently throw all memory in the DMA zone). Could we add a hint to the page allocator where it makes a best effort to grab memory below a threshold? Anton -- 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: aart@kvack.org