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Date:   Thu, 7 Dec 2017 09:44:57 +0100
From:   Michal Hocko <>
To:     Tetsuo Handa <>
Cc:     David Rientjes <>,
        Andrew Morton <>,
        Andrea Arcangeli <>,,
Subject: Re: Multiple oom_reaper BUGs: unmap_page_range racing with exit_mmap

On Thu 07-12-17 09:28:01, Michal Hocko wrote:
> oom_reaper		oom_victim		task
> 						mmget_not_zero
> 			exit_mmap

bleh, this should have been do_exit

> 			  mmput
> __oom_reap_task_mm				mmput
>   						  __mmput
> 						    exit_mmap
> 						      remove_vma
>   unmap_page_range
Michal Hocko

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