linux-kernel - Re: WARNING in try

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Message-ID: <078bde8d-b1b5-f5ad-ed23-0cd94b579f9e@i-love.sakura.ne.jp>
Date:   Tue, 7 Aug 2018 05:26:23 +0900
From:   Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
To:     Michal Hocko <mhocko@...nel.org>,
        syzbot <syzbot+bab151e82a4e973fa325@...kaller.appspotmail.com>
Cc:     cgroups@...r.kernel.org, dvyukov@...gle.com, hannes@...xchg.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        syzkaller-bugs@...glegroups.com, vdavydov.dev@...il.com
Subject: Re: WARNING in try_charge

On 2018/08/07 2:56, Michal Hocko wrote:
> So the oom victim indeed passed the above force path after the oom
> invocation. But later on hit the page fault path and that behaved
> differently and for some reason the force path hasn't triggered. I am
> wondering how could we hit the page fault path in the first place. The
> task is already killed! So what the hell is going on here.
> 
> I must be missing something obvious here.
> 
YOU ARE OBVIOUSLY MISSING MY MAIL!

I already said this is "mm, oom: task_will_free_mem(current) should ignore MMF_OOM_SKIP for once."
problem which you are refusing at https://www.spinics.net/lists/linux-mm/msg133774.html .
And you again ignored my mail. Very sad...