On Mon, 2006-06-05 at 16:48 +0100, Russell King wrote: > When does the zero copy case occur? Almost all user initiated I/O. Glibc tends to implement this as mmap internally. James - : send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html