linux-kernel - Re: [PATCH 05/11] oom: /proc/<pid>/oom

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20100630140328.GC15644@barrios-desktop>
Date:	Wed, 30 Jun 2010 23:03:53 +0900
From:	Minchan Kim <minchan.kim@...il.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, linux-mm <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Rientjes <rientjes@...gle.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Subject: Re: [PATCH 05/11] oom: /proc/<pid>/oom_score treat kernel thread
 honestly

On Wed, Jun 30, 2010 at 06:30:19PM +0900, KOSAKI Motohiro wrote:
> If kernel thread are using use_mm(), badness() return positive value.
> This is not big issue because caller care it correctly. but there is
> one exception, /proc/<pid>/oom_score call badness() directly and
> don't care the task is regular process.
> 
> another example, /proc/1/oom_score return !0 value. but it's unkillable.
> This incorrectness makes confusing to admin a bit.

Hmm. If it is a really problem, Could we solve it in proc_oom_score itself?

-- 
Kind regards,
Minchan Kim
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/