linux-kernel - Re: OOM killer kicks in after minutes or never

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Date:	Thu, 24 Dec 2015 14:14:44 +0100
From:	Marcin Szewczyk <Marcin.Szewczyk@...ny.org>
To:	Vlastimil Babka <vbabka@...e.cz>
Cc:	linux-kernel@...r.kernel.org, Linux-MM <linux-mm@...ck.org>,
	Michal Hocko <mhocko@...e.cz>,
	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
	David Rientjes <rientjes@...gle.com>
Subject: Re: OOM killer kicks in after minutes or never

On Thu, Dec 24, 2015 at 07:27:14AM +0100, Vlastimil Babka wrote:
> +CC so this doesn't get lost
> 
> On 21.12.2015 13:35, Marcin Szewczyk wrote:
> > In 2010 I noticed that viewing many GIFs in a row using gpicview renders
> > my Linux unresponsive. There is very little I can do in such a
> > situation. Rarely after some minutes the OOM killer kicks in and saves
> > the day. Nevertheless, usually I end up using Alt+SysRq+B.

Hi,

I thought that due to high throughput of the linux-kernel mailing list
my email will not get a reply if it didn't happen in a day so I allowed
myself to write another email to linux-mm as well as it was suggested to
me on #debian-kernel.

The email is here:
Subject: Exhausting memory makes the system unresponsive but doesn't
  invoke OOM killer
Message-ID: <20151223143109.GC3519@...isz>
http://marc.info/?t=145088116000002&r=1&w=2

I have also updated the description in the repository:
https://github.com/wodny/crasher

Contrary to my original suspicion the OOM killer doesn't need much time
to clean up, it just isn't invoked. Johannes Weiner explained the
probable cause to me in a response in the linux-mm thread.


-- 
Marcin Szewczyk                       http://wodny.org
mailto:Marcin.Szewczyk@...ny.borg  <- remove b / usuń b
xmpp:wodny@...ntu.pl                  xmpp:wodny@...ster.pl
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