On Sun, May 12, 2013 at 9:23 AM, Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> wrote: > page = vmf.page; > + > + /* > + * If we asked for huge page we expect to get it or VM_FAULT_FALLBACK. > + * If we don't ask for huge page it must be splitted in ->fault(). > + */ > + BUG_ON(PageTransHuge(page) != thp); > + Based on the log message in 34/39( If the area of page cache required to create huge is empty, we create a new huge page and return it.), the above trap looks bogus. if (thp) BUG_ON(!PageTransHuge(page)); -- 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>