(2013/05/24 11:24), HATAYAMA Daisuke wrote: > (2013/05/24 10:11), Atsushi Kumagai wrote: >> On Wed, 15 May 2013 13:43:59 -0500 >> Cliff Wickman <cpw at sgi.com> wrote: > Also, hugetlbfs pages are "user data". They should get filtered when user data dump level > is specified. So how about: > > Dump | zero without with user free hugetlbfs > Level | page private private data page page > -------+----------------------------------------------------- > 0 | > 1 | X > 2 | X > 4 | X X > 8 | X X > 16 | X > 32 | X > 63 | X X X X X X > > On dump level 8, hugetlbfs pages also get filtered. Thinking further, it might be unlikely that we want user data but don't want hugetlbfs pages on crash dump case. If so, I think Petr's implementation seems also OK. It seems no problem to postpone introducing new dump level after someone who wants to filter hugetlbfs pages only, actually occurs. -- Thanks. HATAYAMA, Daisuke
