Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762475AbXEVHKT (ORCPT ); Tue, 22 May 2007 03:10:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754985AbXEVHKH (ORCPT ); Tue, 22 May 2007 03:10:07 -0400 Received: from brick.kernel.dk ([80.160.20.94]:10230 "EHLO kernel.dk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754953AbXEVHKG (ORCPT ); Tue, 22 May 2007 03:10:06 -0400 Date: Tue, 22 May 2007 09:07:39 +0200 From: Jens Axboe To: Christoph Lameter Cc: Ingo Molnar , Hugh Dickins , Srihari Vijayaraghavan , Oliver Xymoron , Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: [PROBLEM] 2.6.22-rc2 panics on x86-64 with slub Message-ID: <20070522070738.GI4705@kernel.dk> References: <20070520133505.46147.qmail@web52609.mail.re2.yahoo.com> <20070521190043.GA4705@kernel.dk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 941 Lines: 30 On Mon, May 21 2007, Christoph Lameter wrote: > Ok booting SLUB without "slub_debug" and having > > CONFIG_DEBUG_LOCK_ALLOC > CONFIG_LOCKDEP > > will trigger the problem. > > So I guess the issue is that lockdep does a slab alloc while we get the > slab lock during slab alloc? If I have CONFIG_SLUB_DEBUG set, then box boots fine. If I don't have it set, then it hard hangs sometime after boot: [...] ReiserFS: sda2: Using r5 hash to sort names VFS: Mounted root (reiserfs filesystem) readonly. Freeing unused kernel memory: 180k freed which is usually followed by messages bringing up the network link, etc. Let me know which tests you want run, or which patches to try. -- Jens Axboe - 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/