Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 15 Jan 2002 08:40:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 15 Jan 2002 08:40:08 -0500 Received: from gnu.in-berlin.de ([192.109.42.4]:59407 "EHLO gnu.in-berlin.de") by vger.kernel.org with ESMTP id ; Tue, 15 Jan 2002 08:40:05 -0500 X-Envelope-From: kraxel@bytesex.org Date: Tue, 15 Jan 2002 14:20:17 +0100 From: Gerd Knorr To: Stephan von Krawczynski Cc: linux-kernel@vger.kernel.org Subject: Re: Memory problem with bttv driver Message-ID: <20020115142017.D8191@bytesex.org> In-Reply-To: <20020114210039.180c0438.skraw@ithnet.com> <20020115004205.A12407@werewolf.able.es> <20020115121424.10bb89b2.skraw@ithnet.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20020115121424.10bb89b2.skraw@ithnet.com> User-Agent: Mutt/1.3.20i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jan 15, 2002 at 12:14:24PM +0100, Stephan von Krawczynski wrote: > On 15 Jan 2002 10:17:03 GMT > Gerd Knorr wrote: > > > MM wise it shouldn't make a difference whenever you are using 0.7.83 or > > 0.7.88 (I've mailed 0.7.88 patches to macelo for 2.4.18 btw). The 0.8.x > > versions have a complete different way to do the memory management. > > No vmallocs? Yes. Instead of remapping vmalloced kernel memory it gives you shared anonymous pages, then does zerocopy DMA using kiobufs. You may run in trouble with >4GB machines. Gerd -- #define ENOCLUE 125 /* userland programmer induced race condition */ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/