From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 25 Apr 2003 13:32:18 -0700 From: "Martin J. Bligh" Subject: TASK_UNMAPPED_BASE & stack location Message-ID: <459930000.1051302738@[10.10.2.4]> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linux-mm@kvack.org Return-Path: To: linux-kernel , linux-mm mailing list Cc: Andrew Morton List-ID: Is there any good reason we can't remove TASK_UNMAPPED_BASE, and just shove libraries directly above the program text? Red Hat seems to have patches to dynamically tune it on a per-processes basis anyway ... Moreover, can we put the stack back where it's meant to be, below the program text, in that wasted 128MB of virtual space? Who really wants > 128MB of stack anyway (and can't fix their app)? I'm sure there's some horrible reason we can't do this ... would just like to know what it is. If it's "standards compilance" I don't really believe it - we don't comply with the standard now anyway ... M. PS. Motivation is creating large shmem segments for DBs. -- 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