Messages in this thread | | | Date | Tue, 1 Aug 2017 16:47:49 +0200 | From | Michal Hocko <> | Subject | Re: Possible race condition in oom-killer |
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On Tue 01-08-17 23:16:13, Tetsuo Handa wrote: > Michal Hocko wrote: > > Once we merge [1] then the oom victim wouldn't > > need to get TIF_MEMDIE to access memory reserves. > > > > [1] http://lkml.kernel.org/r/20170727090357.3205-2-mhocko@kernel.org > > False. We are not setting oom_mm to all thread groups (!CLONE_THREAD) sharing > that mm (CLONE_VM). Thus, one thread from each thread group sharing that mm > will have to call out_of_memory() in order to set oom_mm, and they will find > task_will_free_mem() returning false due to MMF_OOM_SKIP already set, and > after all goes to next OOM victim selection.
Once the patch is merged we can mark_oom_victim all of them as well. -- Michal Hocko SUSE Labs
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