Messages in this thread | | | Date | Mon, 30 May 2016 09:26:28 +0200 | From | Michal Hocko <> | Subject | Re: [PATCH] mm: memcontrol: fix possible css ref leak on oom |
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On Fri 27-05-16 13:36:29, Johannes Weiner wrote: > On Mon, May 23, 2016 at 07:02:10PM +0300, Vladimir Davydov wrote: > > mem_cgroup_oom may be invoked multiple times while a process is handling > > a page fault, in which case current->memcg_in_oom will be overwritten > > leaking the previously taken css reference. > > There is a task_in_memcg_oom() check before calling mem_cgroup_oom(). > > How can this happen?
Ble, I have missed that... Thanks for pointing that out
-- Michal Hocko SUSE Labs
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