Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268674AbUIHFZi (ORCPT ); Wed, 8 Sep 2004 01:25:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268828AbUIHFZi (ORCPT ); Wed, 8 Sep 2004 01:25:38 -0400 Received: from agp.Stanford.EDU ([171.67.73.10]:29056 "EHLO agp.stanford.edu") by vger.kernel.org with ESMTP id S268674AbUIHFZ1 (ORCPT ); Wed, 8 Sep 2004 01:25:27 -0400 From: Dawson Engler Message-Id: <200409080510.i885ANcX025884@csl.stanford.edu> Subject: Re: [CHECKER] possible reiserfs deadlock in 2.6.8.1 To: viro@parcelfarce.linux.theplanet.co.uk Date: Tue, 7 Sep 2004 22:10:23 -0700 (PDT) Cc: engler@coverity.dreamhost.com (Dawson Engler), linux-kernel@vger.kernel.org, developers@coverity.com Reply-To: engler@csl.stanford.edu In-Reply-To: <20040908033628.GV23987@parcelfarce.linux.theplanet.co.uk> from "viro@parcelfarce.linux.theplanet.co.uk" at Sep 08, 2004 04:36:28 AM X-Mailer: ELM [version 2.5 PL0pre8] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Scan-Signature: 6c9d9c85a593a9550db5337c65f4967d Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 921 Lines: 21 > On Tue, Sep 07, 2004 at 08:16:53PM -0700, Dawson Engler wrote: > > Hi All, > > > > below is a possible deadlock in the linux-2.6.8.1 reiserfs code found by > > a static deadlock checker I'm writing. Let me know if it looks valid > > and/or whether the output is too cryptic. Note, one of the locks is > > through a struct pointer, so the deadlock depends on both acquisitions > > being to the same struct. > > Not valid, for the same reason as the above. BKL and down() do not form > a mutual deadlock. You know, I actually know this, and the tool "does" take care of this. I think a bit mask got screwed up somewhere. Along with my brain... Sorry about the noise. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/