From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261605AbTJ0MQU (ORCPT ); Mon, 27 Oct 2003 07:16:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261606AbTJ0MQU (ORCPT ); Mon, 27 Oct 2003 07:16:20 -0500 Received: from mx1.redhat.com ([66.187.233.31]:22283 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S261605AbTJ0MQT (ORCPT ); Mon, 27 Oct 2003 07:16:19 -0500 Date: Mon, 27 Oct 2003 12:16:09 +0000 From: Dave Jones To: Andrew Morton Cc: Burton Windle , linux-kernel@vger.kernel.org, Linus Torvalds Subject: Re: fsstress causes memory leak in test6, test8 Message-ID: <20031027121609.GA27611@redhat.com> Mail-Followup-To: Dave Jones , Andrew Morton , Burton Windle , linux-kernel@vger.kernel.org, Linus Torvalds References: <20031026170241.628069e3.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20031026170241.628069e3.akpm@osdl.org> User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Oct 26, 2003 at 05:02:41PM -0800, Andrew Morton wrote: > It is not a "leak" as such - the dentries will get shrunk in normal usage > (create enough non-dir dentries and the "leaked" directory dentries will > get reclaimed). The really deep directories which fsstress creates > demonstrated the bug. This could explain the random reiserfs oopses/hangs I was seeing several months back after running fsstress for a day or so. The reiser folks were scratching their heads, and we even put it down to flaky hardware or maybe even a CPU bug back then. > Given that it took a year for anyone to notice, it's probably best that > this not be included for 2.6.0. I agree in a "lets get 2.6 out the door" sense, but once thats 'out there' a user-level DoS should be fixed up pretty quickly. The paranoid could always run 2.6-mm I guess 8-) Dave -- Dave Jones http://www.codemonkey.org.uk