linux-kernel - Re: mm: hangs in collapse_huge

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Message-ID: <53593FE3.5000606@oracle.com>
Date:	Thu, 24 Apr 2014 12:46:27 -0400
From:	Sasha Levin <sasha.levin@...cle.com>
To:	"linux-mm@...ck.org" <linux-mm@...ck.org>
CC:	LKML <linux-kernel@...r.kernel.org>, Dave Jones <davej@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: mm: hangs in collapse_huge_page

On 04/15/2014 10:06 PM, Sasha Levin wrote:
> Hi all,
> 
> I often see hung task triggering in khugepaged within collapse_huge_page().
> 
> I've initially assumed the case may be that the guests are too loaded and
> the warning occurs because of load, but after increasing the timeout to
> 1200 sec I still see the warning.

Ping? It happens quite often right now.


Thanks,
Sasha
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