From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 17 May 2001 21:23:10 +0200 From: Christoph Hellwig Subject: Re: Running out of vmalloc space Message-ID: <20010517212310.A5122@caldera.de> References: <3B04069C.49787EC2@fc.hp.com> <20010517221610.K5947@mea-ext.zmailer.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20010517221610.K5947@mea-ext.zmailer.org>; from matti.aarnio@zmailer.org on Thu, May 17, 2001 at 10:16:10PM +0300 Sender: owner-linux-mm@kvack.org Return-Path: To: Matti Aarnio Cc: David Pinedo , linux-mm@kvack.org List-ID: On Thu, May 17, 2001 at 10:16:10PM +0300, Matti Aarnio wrote: > On Thu, May 17, 2001 at 11:13:00AM -0600, David Pinedo wrote: > [ Why vmalloc() space is so small ? ] > > Hua Ji summarized quite well what the kernel does, and where. > > There are 32bit machines which *can* access whole 4G kernel space > separate from simultaneous 4G user space, however i386 is not one > of those. Kanoj Sarcar has written a patch for Linux 2.2 to allow exactly this. Take a look at http://oss.sgi.com/projects/bigmem/, the page also contains a nice explanation of what the changes actually do. Christoph -- Whip me. Beat me. Make me maintain AIX. -- 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.eu.org/Linux-MM/