From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758540AbaDXQqq (ORCPT ); Thu, 24 Apr 2014 12:46:46 -0400 Received: from userp1040.oracle.com ([156.151.31.81]:40557 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758338AbaDXQqh (ORCPT ); Thu, 24 Apr 2014 12:46:37 -0400 Message-ID: <53593FE3.5000606@oracle.com> Date: Thu, 24 Apr 2014 12:46:27 -0400 From: Sasha Levin User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 MIME-Version: 1.0 To: "linux-mm@kvack.org" CC: LKML , Dave Jones , Andrew Morton Subject: Re: mm: hangs in collapse_huge_page References: <534DE5C0.2000408@oracle.com> In-Reply-To: <534DE5C0.2000408@oracle.com> X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Source-IP: acsinet21.oracle.com [141.146.126.237] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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