From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934651AbYEBMps (ORCPT ); Fri, 2 May 2008 08:45:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760142AbYEBMph (ORCPT ); Fri, 2 May 2008 08:45:37 -0400 Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:37302 "EHLO sunset.davemloft.net" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1750976AbYEBMph (ORCPT ); Fri, 2 May 2008 08:45:37 -0400 Date: Fri, 02 May 2008 05:45:36 -0700 (PDT) Message-Id: <20080502.054536.109642865.davem@davemloft.net> To: devzero@web.de Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, g4klx@g4klx.demon.co.uk Subject: Re: 24rc8: unregister_netdevice: waiting for ... to become free From: David Miller In-Reply-To: <008f01c8ac51$83dbd5d0$6400a8c0@bui.materna.com> References: <008f01c8ac51$83dbd5d0$6400a8c0@bui.materna.com> X-Mailer: Mew version 5.2 on Emacs 22.1 / Mule 5.0 (SAKAKI) 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 From: "Roland" Date: Fri, 2 May 2008 14:38:36 +0200 > it seems it`s lapbether driver > > reproduce: > > on system with pcnet32 (vmware) do > > modprobe pcnet32 > modprobe lapbether > modprobe -r lapbether > modprobe -r pcnet32 -> hang -> unregister_netdevice: waiting for eth0 to > become free lapbeth_cleanup_driver() unregisters the netdevice, but does not release the reference to lapbeth->ethdev in those device instances. Once this happens, and the lapbeth_dev_notifier is unregistered, these references will leak forever.