From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f178.google.com (mail-pd0-f178.google.com [209.85.192.178]) by kanga.kvack.org (Postfix) with ESMTP id 528FE6B0031 for ; Mon, 28 Oct 2013 14:23:18 -0400 (EDT) Received: by mail-pd0-f178.google.com with SMTP id x10so7163582pdj.23 for ; Mon, 28 Oct 2013 11:23:17 -0700 (PDT) Received: from psmtp.com ([74.125.245.163]) by mx.google.com with SMTP id ud7si13710422pac.33.2013.10.28.11.23.15 for ; Mon, 28 Oct 2013 11:23:16 -0700 (PDT) Date: Mon, 28 Oct 2013 18:23:09 +0000 From: Richard Davies Subject: Re: Unnecessary mass OOM kills on Linux 3.11 virtualization host Message-ID: <20131028182309.GA21822@alpha.arachsys.com> References: <20131024224326.GA19654@alpha.arachsys.com> <20131025103946.GA30649@alpha.arachsys.com> <20131028082825.GA30504@alpha.arachsys.com> <526EA947.7060608@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <526EA947.7060608@intel.com> Sender: owner-linux-mm@kvack.org List-ID: To: Dave Hansen Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Johannes Weiner Dave Hansen wrote: > Richard Davies wrote: > > I further attach some other types of memory manager errors found in the > > kernel logs around the same time. There are several occurrences of each, but > > I have only copied one here for brevity: > > > > 19:18:27 kernel: BUG: Bad page map in process qemu-system-x86 pte:00000608 pmd:1d57fd067 > > FWIW, I took a quick look through your OOM report and didn't see any > obvious causes for it. But, INMHO, you should probably ignore the OOM > issue until you've fixed these "Bad page map" problems. Those are a > sign of a much deeper problem. Thanks! What investigation should I do for these? It is on stock 3.11.3. Richard. -- 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