On Tue 02-03-21 10:50:32, Roman Gushchin wrote: > On Tue, Mar 02, 2021 at 03:37:33PM +0800, Muchun Song wrote: > > The alloc_thread_stack_node() cannot guarantee that allocated stack pages > > are in the same node when CONFIG_VMAP_STACK. Because we do not specify > > __GFP_THISNODE to __vmalloc_node_range(). Fix it by caling > > mod_lruvec_page_state() for each page one by one. > > Hm, I actually wonder if it makes any sense to split the stack over multiple > nodes? Maybe we should fix this instead?
While this is not really ideal I am not really sure it is an actual problem worth complicating the code. I am pretty sure this would grow into more tricky problem quite quickly (e.g. proper memory policy handling). -- Michal Hocko SUSE Labs
