From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934427AbcATPUY (ORCPT ); Wed, 20 Jan 2016 10:20:24 -0500 Received: from mail-wm0-f42.google.com ([74.125.82.42]:33210 "EHLO mail-wm0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932744AbcATPUT (ORCPT ); Wed, 20 Jan 2016 10:20:19 -0500 Date: Wed, 20 Jan 2016 16:20:16 +0100 From: Michal Hocko To: Christoph Lameter Cc: Sasha Levin , LKML , "linux-mm@kvack.org" , Andrew Morton Subject: Re: mm, vmstat: kernel BUG at mm/vmstat.c:1408! Message-ID: <20160120152015.GI14187@dhcp22.suse.cz> References: <5674A5C3.1050504@oracle.com> <20160120143719.GF14187@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed 20-01-16 09:14:06, Christoph Lameter wrote: > On Wed, 20 Jan 2016, Michal Hocko wrote: > > > [CCing Andrew] > > > > 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 > > Is there any way to reproce this issue? This is running through trinity > right? Can we please get the exact syscall that causes this to occur? As per the backtrace in the initial report this seems to be time dependent as the crash happens from _kthread_ context. So it doesn't seem to be directly related to any particular syscall. -- Michal Hocko SUSE Labs