>> >> This is (yet another) update of CMA patches. > > > How well CMA is supposed to work if you have mlocked processes? I've > been testing these patches, and noticed that by creating a small mlocked > process you start to get plenty of test_pages_isolated() failure warnings, > and bigger allocations will always fail. CMIIW, I think mlocked pages are never migrated. The reason is because __isolate_lru_pages() does not isolate Unevictable pages right now. Minchan added support to allow this but the patch was dropped. See the discussion at : https://lkml.org/lkml/2011/8/29/295 Sandeep -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>