On Mon, Nov 1, 2021 at 10:36 PM Samuel Thibault <samuel.thiba...@gnu.org> wrote: > offset is inside the original object, and start is in the proxy object. > Think for instance of /dev/mem, within which you could want to map some > VGA-compatible range at 0xA0000 (that's the start), but the mapping > range is a subpart of the memory of some device (that's the offset).
Makes sense, thank you. But that means the code in vm_map () is wrong: it'd need to subtract 'start' and add 'offset' of the proxy to the user-specified 'offset'. Currently it adds 'start' and ignores 'offset'. Sergey
