From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757947AbZE0VHt (ORCPT ); Wed, 27 May 2009 17:07:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755842AbZE0VHj (ORCPT ); Wed, 27 May 2009 17:07:39 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:50295 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755289AbZE0VHi (ORCPT ); Wed, 27 May 2009 17:07:38 -0400 Date: Wed, 27 May 2009 14:06:41 -0700 From: Andrew Morton To: Jens Axboe Cc: damien.wyart@free.fr, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, chris.mason@oracle.com, david@fromorbit.com, hch@infradead.org, jack@suse.cz, yanmin_zhang@linux.intel.com, richard@rsk.demon.co.uk Subject: Re: [PATCH 0/12] Per-bdi writeback flusher threads v7 Message-Id: <20090527140641.71ecaf8c.akpm@linux-foundation.org> In-Reply-To: <20090527150546.GM11363@kernel.dk> References: <1243330430-9964-1-git-send-email-jens.axboe@oracle.com> <20090526152501.GA20968@localhost.localdomain> <20090526164117.GJ11363@kernel.dk> <20090526170845.GA3226@localhost.localdomain> <20090526204703.GM11363@kernel.dk> <20090526211119.GO11363@kernel.dk> <20090527052101.GA28517@localhost.localdomain> <20090527054921.GA4127@localhost.localdomain> <20090527092052.GV11363@kernel.dk> <20090527131555.GA3277@localhost.localdomain> <20090527150546.GM11363@kernel.dk> X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.8.20; i486-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 27 May 2009 17:05:47 +0200 Jens Axboe wrote: > I ran testing with artificial > bdi_work allocation failures to verify the oom path I bet you didn't use lib/fault-inject.c :( For tricky pieces of core kernel like this, there's a good case for including and permanently maintaining fault injection testing capabilities.