At 17:35 -0700 16/7/03, raldrich@mac.com wrote: Any ideas? My guess is that this has something to do with how your VOP_PAGEIN entry point is implemented. I did some poking around in Preview with GDB and it seems that it memory maps the image file (using mmap). [NSBMPImageReader getByte] then reads the file by reading the mapped memory. Unfortunately I don't have a recommendation for how you might implement VOP_PAGEIN given your current I/O design. I'd have to study the problem in more detail than I have time for right now. S+E -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Technical Support * Networking, Communications, Hardware _______________________________________________ darwin-kernel mailing list | darwin-kernel@lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.