linux-kernel - Re: [PATCH 1/1] mm: sysctl: add panic_on_mm

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Date:   Mon, 27 Jan 2020 10:55:33 +0000
From:   Aaron Tomlin <atomlin@...hat.com>
To:     Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
Cc:     Grzegorz Halat <ghalat@...hat.com>, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, linux-fsdevel@...r.kernel.org,
        linux-doc@...r.kernel.org, ssaner@...hat.com, oleksandr@...hat.com,
        vbendel@...hat.com, kirill@...temov.name,
        khlebnikov@...dex-team.ru, borntraeger@...ibm.com,
        Andrew Morton <akpm@...ux-foundation.org>,
        Iurii Zaikin <yzaikin@...gle.com>,
        Kees Cook <keescook@...omium.org>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Jonathan Corbet <corbet@....net>
Subject: Re: [PATCH 1/1] mm: sysctl: add panic_on_mm_error sysctl

On Mon 2020-01-27 19:42 +0900, Tetsuo Handa wrote:
> On 2020/01/27 19:11, Grzegorz Halat wrote:
> > diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst
> > index def074807cee..2fecd6b2547e 100644
> > --- a/Documentation/admin-guide/sysctl/kernel.rst
> > +++ b/Documentation/admin-guide/sysctl/kernel.rst
> > @@ -61,6 +61,7 @@ show up in /proc/sys/kernel:
> >  - overflowgid
> >  - overflowuid
> >  - panic
> > +- panic_on_mm_error
> 
> Maybe panic_on_inconsistent_mm is better, for an MM error sounds too generic
> (e.g. is page allocation failure an error, is OOM killer an error,
> is NULL pointer dereference an error, is use-after-free access an error) ?

Fair enough; 'panic_on_inconsistent_mm' is more concise.

-- 
Aaron Tomlin