From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f179.google.com (mail-pf0-f179.google.com [209.85.192.179]) by kanga.kvack.org (Postfix) with ESMTP id 8D19D6B0003 for ; Mon, 21 Dec 2015 16:07:53 -0500 (EST) Received: by mail-pf0-f179.google.com with SMTP id 78so21374030pfw.2 for ; Mon, 21 Dec 2015 13:07:53 -0800 (PST) Received: from aserp1040.oracle.com (aserp1040.oracle.com. [141.146.126.69]) by mx.google.com with ESMTPS id ch2si6018125pad.150.2015.12.21.13.07.51 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 21 Dec 2015 13:07:52 -0800 (PST) Subject: Re: mm, vmstat: kernel BUG at mm/vmstat.c:1408! References: <5674A5C3.1050504@oracle.com> <567860EB.4000103@oracle.com> From: Sasha Levin Message-ID: <56786A22.9030103@oracle.com> Date: Mon, 21 Dec 2015 16:07:46 -0500 MIME-Version: 1.0 In-Reply-To: <567860EB.4000103@oracle.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Christoph Lameter Cc: Michal Hocko , LKML , "linux-mm@kvack.org" On 12/21/2015 03:28 PM, Sasha Levin wrote: > On 12/21/2015 08:08 AM, Christoph Lameter wrote: >> > On Fri, 18 Dec 2015, Sasha Levin wrote: >> > >>>> >> > [ 531.164630] RIP vmstat_update (mm/vmstat.c:1408) >> > Hmmm.. Yes we need to fold the diffs first before disabling the timer >> > otherwise the shepherd task may intervene. >> > >> > Does this patch fix it? > It didn't. With the patch I'm still seeing: I've also noticed a new warning from the workqueue code which my scripts didn't pick up before: [ 3462.380681] BUG: workqueue lockup - pool cpus=2 node=2 flags=0x4 nice=0 stuck for 54s! [ 3462.522041] workqueue vmstat: flags=0xc [ 3462.527795] pwq 4: cpus=2 node=2 flags=0x0 nice=0 active=1/256 [ 3462.554836] pending: vmstat_update Thanks, Sasha -- 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