On Wed, 2 Jul 2014 16:26:54 +0800 Baoquan He <bhe at redhat.com> wrote: > On 06/17/14 at 02:32am, Atsushi Kumagai wrote: > > > +static void > > +setup_page_is_hugepage(void) > > +{ > > + if (NUMBER(PG_head) != NOT_FOUND_NUMBER) { > > + if (NUMBER(PG_tail) == NOT_FOUND_NUMBER) { > > + /* > > + * If PG_tail is not explicitly saved, then assume > > + * that it immediately follows PG_head. > > + */ > > + NUMBER(PG_tail) = NUMBER(PG_head) + 1; > > + } > > + } else if ((NUMBER(PG_compound) != NOT_FOUND_NUMBER) > > + && (info->dump_level & DL_EXCLUDE_USER_DATA)) { > > Hi, > > I may not understand hugepage well. I am wondering why hugepage > filtering can't be done if PG_compound is available. Oh, maybe I'm missing something. What do you suggest as an alternative way to recognize a huge page if the value of PG_compound is not known? Petr Tesarik