b91295a8d2
Previously, the mmap address (if given) was merely used as a lower bound, and then possibly overriden with a hint. Now, the mapping is first tried at the exact given address. If that fails, the start of the mmap range is used as lower bound (which is then still overridden by the hint for efficiency). This allows two pages to be mapped in at predefined addresses, where the second address is lower than the first. That was not possible.