Hello, On Mon, Jul 30, 2018 at 10:03:57AM +0200, Michal Hocko wrote: > Please be careful when defining differen oom.group policies within the > same hierarchy because OOM events at different hierarchy levels can > have surprising effects. Example > R > | > A (oom.group = 1) > / \ > B C (oom.group = 0) > > oom victim living in B resp. C. > > OOM event at R - (e.g. global OOM) or A will kill all tasks in A subtree. > OOM event at B resp. C will only kill a single process from those > memcgs. That behavior makes perfect sense to me and it maps to panic_on_oom==2 which works. Roman, what do you think? Thanks. -- tejun
