From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 05 Jul 2000 16:13:52 -0500 From: Timur Tabi Subject: Tell me about ZONE_DMA Message-Id: <20000705212704Z131198-21004+106@kanga.kvack.org> Sender: owner-linux-mm@kvack.org Return-Path: To: Linux MM mailing list List-ID: I'm trying to understand the differences between the three zones, ZONE_DMA, ZONE_NORMAL,and ZONE_HIGHMEM. I've searched the source code (I'm getting pretty good at understanding the kernel memory allocator), but I can't figure out what physical regions of memory belong to each zone. Where is that determined? Also, I get this eerie feeling that it's possible for a physical page to exist in more than one zone. Is that true? -- Timur Tabi - ttabi@interactivesi.com Interactive Silicon - http://www.interactivesi.com When replying to a mailing-list message, please don't cc: me, because then I'll just get two copies of the same message. -- 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/