On 26/06/20 09:06, Nadav Amit wrote: >> Actually the IDTR is not reloaded by exec_in_big_real_mode, so this >> (while a bit weird) works fine. > Err… So it means I need to debug why it does not work for *me*… Hmm, maybe a dislike for an IDT that is placed above the first MiB of memory? But I cannot read anything about it in the manuals. In any case I would accept a patch that switches to the "usual" address 0 IDT in exec_big_real_mode. Paolo
