linux-kernel - Re: [RESEND PATCH v2] mm/oom_killer: Add task UID to info message on an oom kill

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Message-Id: <20190920171340.7591fd2899a06b5e7c390b76@linux-foundation.org>
Date:   Fri, 20 Sep 2019 17:13:40 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Michal Hocko <mhocko@...nel.org>
Cc:     Joel Savitz <jsavitz@...hat.com>, linux-kernel@...r.kernel.org,
        Rafael Aquini <aquini@...hat.com>,
        David Rientjes <rientjes@...gle.com>, linux-mm@...ck.org
Subject: Re: [RESEND PATCH v2] mm/oom_killer: Add task UID to info message
 on an oom kill

On Thu, 13 Jun 2019 10:23:18 +0200 Michal Hocko <mhocko@...nel.org> wrote:

> On Wed 12-06-19 13:57:53, Joel Savitz wrote:
> > In the event of an oom kill, useful information about the killed
> > process is printed to dmesg. Users, especially system administrators,
> > will find it useful to immediately see the UID of the process.
> 
> Could you be more specific please? We already print uid when dumping
> eligible tasks so it is not overly hard to find that information in the
> oom report. Well, except when dumping of eligible tasks is disabled. Is
> this what you are after?
> 
> Please always be specific about usecases in the changelog. A terse
> statement that something is useful doesn't tell much very often.
> 

<crickets?>

I'll add this to the chagnelog:

: We already print uid when dumping eligible tasks so it is not overly hard
: to find that information in the oom report.  However this information is
: unavailable then dumping of eligible tasks is disabled.