From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ot0-f200.google.com (mail-ot0-f200.google.com [74.125.82.200]) by kanga.kvack.org (Postfix) with ESMTP id D27A36B0372 for ; Fri, 23 Jun 2017 11:28:51 -0400 (EDT) Received: by mail-ot0-f200.google.com with SMTP id 93so32778750oto.10 for ; Fri, 23 Jun 2017 08:28:51 -0700 (PDT) Received: from mail-ot0-x234.google.com (mail-ot0-x234.google.com. [2607:f8b0:4003:c0f::234]) by mx.google.com with ESMTPS id 1si1666647oih.206.2017.06.23.08.28.51 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 23 Jun 2017 08:28:51 -0700 (PDT) Received: by mail-ot0-x234.google.com with SMTP id 95so33835460ott.3 for ; Fri, 23 Jun 2017 08:28:51 -0700 (PDT) Subject: Re: Sleeping BUG in khugepaged for i586 References: <968ae9a9-5345-18ca-c7ce-d9beaf9f43b6@lwfinger.net> <20170605144401.5a7e62887b476f0732560fa0@linux-foundation.org> <1e883924-9766-4d2a-936c-7a49b337f9e2@lwfinger.net> <9ab81c3c-e064-66d2-6e82-fc9bac125f56@suse.cz> <20170608144831.GA19903@dhcp22.suse.cz> <20170623120812.GS5308@dhcp22.suse.cz> <66280cc3-6231-8d35-6d9a-113fe2d80409@suse.cz> <20170623132558.GC5308@dhcp22.suse.cz> From: Larry Finger Message-ID: Date: Fri, 23 Jun 2017 10:28:49 -0500 MIME-Version: 1.0 In-Reply-To: <20170623132558.GC5308@dhcp22.suse.cz> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Michal Hocko , Vlastimil Babka Cc: David Rientjes , Andrew Morton , LKML , linux-mm@kvack.org On 06/23/2017 08:25 AM, Michal Hocko wrote: > On Fri 23-06-17 15:13:45, Vlastimil Babka wrote: >> On 06/23/2017 02:08 PM, Michal Hocko wrote: >>> On Thu 08-06-17 16:48:31, Michal Hocko wrote: >>>> On Wed 07-06-17 13:56:01, David Rientjes wrote: >>>> >>>> I suspect, so cond_resched seems indeed inappropriate on 32b systems. >>> >>> The code still seems to be in the mmotm tree. >> >> Even mainline at this point - 338a16ba1549 >> >>> Are there any plans to fix >>> this or drop the patch? >> >> https://lkml.kernel.org/r/alpine.DEB.2.10.1706191341550.97821@chino.kir.corp.google.com > > Ahh, I have missed that. Thanks! I also missed that patch. Applying it to my box fixes the scheduling while atomic splats and no downside has been detected. You may add "Reported-and-tested-by: Larry Finger ". Thanks for everyone's efforts in fixing this problem. Larry -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org