linux-kernel - Re: [PATCH for 2.6.31 0/4] fix oom

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Message-ID: <2f11576a0908052213m3fba4154ifb73ab1ae2ea74d6@mail.gmail.com>
Date:	Thu, 6 Aug 2009 14:13:16 +0900
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Paul Menage <menage@...gle.com>,
	David Rientjes <rientjes@...gle.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Rik van Riel <riel@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Oleg Nesterov <oleg@...hat.com>, linux-mm <linux-mm@...ck.org>
Subject: Re: [PATCH for 2.6.31 0/4] fix oom_adj regression v2

> So I merged these but I have a feeling that this isn't the last I'll be
> hearing on the topic ;)
>
> Given the amount of churn, the amount of discussion and the size of the
> patches, this doesn't look like something we should push into 2.6.31.
>
> If we think that the 2ff05b2b regression is sufficiently serious to be
> a must-fix for 2.6.31 then can we please find something safer and
> smaller?  Like reverting 2ff05b2b?

I don't think the serious problem is only  this issue, I oppose to
ignore regression
bug report ;-)

Yes, your point makes sense. then, I'll make two patch series.
1. reverting 2ff05b2b for 2.6.31
2. retry fix oom livelock for -mm

I expect I can do that next sunday.


> These patches clash with the controversial
> mm-introduce-proc-pid-oom_adj_child.patch, so I've disabled that patch
> now.

I think we can drop this because workaround patch is only needed until
the issue not fixed.
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