On Sun, 29 Mar 2015, Hugh Dickins wrote: > > munmap(2) of hugetlb memory requires a length that is hugepage aligned, > > otherwise it may fail. Add this to the documentation. > > Thanks for taking this on, David. But although munmap(2) is the one > Davide called out, it goes beyond that, doesn't it? To mprotect and > madvise and ... > Yes, good point, munmap(2) isn't special in this case, the alignment to the native page size of the platform should apply to madvise, mbind, mincore, mlock, mprotect, remap_file_pages, etc. I'd hesitate to compile any authoritative list on the behavior in Documentation/vm/hugetlbpage.txt since it would exclude future extensions, but I'll update it to be more inclusive of other mm syscalls rather than specify only munmap(2). -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>