I switched a system from Linux 3.5 to 3.9.4, and I have some crashes that I didn't have before. The cause is a SIGBUS w/ code BUS_ADRERR on what I presume is the first access to a MAP_HUGETLB | MAP_PRIVATE page. I have nr_overcommit_hugepages == 0, so this shouldn't happen. There are no kernel log messages at all. Is there possibly a regression here? Nothing seems to be asserting any invariants with respect to the freelist size and the number of accounted free hugepages. I do not have CONFIG_CGROUP_HUGETLB set. Thanks, Andy -- 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>