From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f48.google.com (mail-pa0-f48.google.com [209.85.220.48]) by kanga.kvack.org (Postfix) with ESMTP id CBE1A6B0005 for ; Wed, 20 Jan 2016 10:10:12 -0500 (EST) Received: by mail-pa0-f48.google.com with SMTP id uo6so6193900pac.1 for ; Wed, 20 Jan 2016 07:10:12 -0800 (PST) Received: from mail-pa0-f44.google.com (mail-pa0-f44.google.com. [209.85.220.44]) by mx.google.com with ESMTPS id ly9si15737411pab.115.2016.01.20.07.10.12 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 20 Jan 2016 07:10:12 -0800 (PST) Received: by mail-pa0-f44.google.com with SMTP id cy9so6074494pac.0 for ; Wed, 20 Jan 2016 07:10:12 -0800 (PST) Date: Wed, 20 Jan 2016 16:10:08 +0100 From: Michal Hocko Subject: Re: mm, vmstat: kernel BUG at mm/vmstat.c:1408! Message-ID: <20160120151007.GG14187@dhcp22.suse.cz> References: <5674A5C3.1050504@oracle.com> <20160120143719.GF14187@dhcp22.suse.cz> <569FA01A.4070200@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <569FA01A.4070200@oracle.com> Sender: owner-linux-mm@kvack.org List-ID: To: Sasha Levin Cc: Christoph Lameter , LKML , "linux-mm@kvack.org" , Andrew Morton On Wed 20-01-16 09:56:26, Sasha Levin wrote: > On 01/20/2016 09:37 AM, Michal Hocko wrote: > > I am just reading through this old discussion again because "vmstat: > > make vmstat_updater deferrable again and shut down on idle" which seems > > to be the culprit AFAIU has been merged as 0eb77e988032 and I do not see > > any follow up fix merged to linus tree > > So this isn't an "old" discussion - the bug is very much there and I can > hit it easily. As a workaround I've "disabled" vmstat. Well the report is since 18th Dec which is over month old. Should we revert 0eb77e988032 as a pre caution and make sure this is done properly in -mm tree. AFAIR none of the proposed fix worked without other fallouts? -- Michal Hocko SUSE Labs -- 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