From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with ESMTP id 17E286B008C for ; Mon, 21 Sep 2009 13:46:51 -0400 (EDT) Date: Mon, 21 Sep 2009 18:46:57 +0100 From: Mel Gorman Subject: Re: [RFC PATCH 0/3] Fix SLQB on memoryless configurations V2 Message-ID: <20090921174656.GS12726@csn.ul.ie> References: <1253549426-917-1-git-send-email-mel@csn.ul.ie> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: <1253549426-917-1-git-send-email-mel@csn.ul.ie> Sender: owner-linux-mm@kvack.org To: Nick Piggin , Pekka Enberg , Christoph Lameter Cc: heiko.carstens@de.ibm.com, sachinp@in.ibm.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Tejun Heo , Benjamin Herrenschmidt List-ID: On Mon, Sep 21, 2009 at 05:10:23PM +0100, Mel Gorman wrote: > Currently SLQB is not allowed to be configured on PPC and S390 machines as > CPUs can belong to memoryless nodes. SLQB does not deal with this very well > and crashes reliably. > > These patches fix the problem on PPC64 and it appears to be fairly stable. > At least, basic actions that were previously silently halting the machine > complete successfully. I spoke too soon. Stress tests result in application failure, nothing to dmesg even with the patches applied so it looks like patch 2 is still the wrong way to fix the OOM-kill storm. -- Mel Gorman Part-time Phd Student Linux Technology Center University of Limerick IBM Dublin Software Lab -- 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