From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 29 Oct 1999 10:52:57 -0400 (EDT) From: James Simmons Subject: Re: page faults In-Reply-To: <19991026110558.A1588@uni-koblenz.de> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Ralf Baechle Cc: "Eric W. Biederman" , "Stephen C. Tweedie" , "Benjamin C.R. LaHaise" , Linux MM List-ID: > In the past Linus already said that he doesn't want such a feature to > enter mm and I agree with him because of the involved complexity. So > in short I'd say it's best to leave the operation of this interface > undefined and recommend the usage of a separate rendering thread or > a suitable mutual exclusion algorithem. I agree too. I will see which is better. A mutal exclusion algorithm or a special graphics thread which does have its own private mappings. > > If the hardware cannot support two processors hitting the region > > simultaneously, (support would be worst case the graphics would look > > strange) you could have problems. > > I'm sure there is stupid hardware which will allow to crash the system. Its about proper virtualization. Imagine if userland would have to negotate access to hard drives. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://humbolt.geo.uu.nl/Linux-MM/