Gerd Hoffmann wrote: >> pushl $SYSENTER_RETURN >> >> SYSENTER_RETURN is a link time constant that is defined based on the >> location of the vsyscall page. If the vsyscall page can move, this can >> not be a constant. >> > > The vsyscall page is at PAGE_OFFSET - 2*PAGE_SIZE. It doesn't move. At > least not at runtime. At compile time it can change with the new > VMSPLIT config options, but that isn't a problem ;) > Okay, I get it now. Thanks for the explanation. This certainly does simplify the problem. Zach
