Re: [PATCH 2/4] remove boost_dying_task_prio()

From: David Rientjes
Date: Wed Apr 13 2011 - 14:41:26 EST

On Mon, 11 Apr 2011, KOSAKI Motohiro wrote:

> This is a almost revert commit 93b43fa (oom: give the dying
> task a higher priority).
> The commit dramatically improve oom killer logic when fork-bomb
> occur. But, I've found it has nasty corner case. Now cpu cgroup
> has strange default RT runtime. It's 0! That said, if a process
> under cpu cgroup promote RT scheduling class, the process never
> run at all.
> Eventually, kernel may hang up when oom kill occur.
> I and Luis who original author agreed to disable this logic at
> once.
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
> Acked-by: Luis Claudio R. Goncalves <lclaudio@xxxxxxxx>
> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
> Reviewed-by: Minchan Kim <>

Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
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