--- 2.4.3aa/mm/mmap.c.~1~ Fri Apr 6 05:10:16 2001 +++ 2.4.3aa/mm/mmap.c Fri Apr 6 20:44:18 2001 @@ -64,6 +64,7 @@ free += atomic_read(&page_cache_size); free += nr_free_pages(); free += nr_swap_pages; + free += swapper_space.nrpages; /* * The code below doesn't account for free space in the inode * and dentry slab cache, slab cache fragmentation, inodes and