You can even do user-space on-demand paging with segfault handlers. Though there is a more modern solution for this: https://man7.org/linux/man-pages/man2/userf

You can even do user-space on-demand paging with segfault handlers. Though there is a more modern solution for this: https://man7.org/linux/man-pages/man2/userfaultfd.2.html https://man7.org/linux/man-pages/man2/userfaultfd.2.html