On Thu 12-01-12 11:14:15, Mel Gorman wrote: > On Thu, Jan 12, 2012 at 11:05:21AM +0100, Michal Hocko wrote: > > From 39de8df13532150fc4518dad0cb3f6fd88745b8a Mon Sep 17 00:00:00 2001 > > From: Michal Hocko <mhocko@xxxxxxx> > > Date: Thu, 12 Jan 2012 10:19:04 +0100 > > Subject: [PATCH] mm: __count_immobile_pages make sure the node is online > > > > page_zone requires to have an online node otherwise we are accessing > > NULL NODE_DATA. This is not an issue at the moment because node_zones > > are located at the structure beginning but this might change in the > > future so better be careful about that. > > > > Signed-off-by: Michal Hocko <mhocko@xxxxxxx> > > Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> > > Acked-by: Mel Gorman <mgorman@xxxxxxx> Thanks > Be aware that this is not the version picked up by Andrew. It would > not hurt to resend as V2 with a changelog and a note saying it replaces > mm-fix-null-ptr-dereference-in-__count_immobile_pages.patch in mmotm. > This is just in case the wrong one gets merged due to this thread > getting lost in the noise of Andrew's inbox. I guess that both of them should be merged. This one as a follow up fix. That's why I made it separate and didn't repost the whole patch. The original patch is much more obvious why it fixes the issue this one is to have everything clear. -- Michal Hocko SUSE Labs SUSE LINUX s.r.o. Lihovarska 1060/12 190 00 Praha 9 Czech Republic -- 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>