From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753976Ab2AaL7J (ORCPT ); Tue, 31 Jan 2012 06:59:09 -0500 Received: from mail-iy0-f174.google.com ([209.85.210.174]:54240 "EHLO mail-iy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753024Ab2AaL7H (ORCPT ); Tue, 31 Jan 2012 06:59:07 -0500 MIME-Version: 1.0 In-Reply-To: <4F27CDBC.5020201@suse.cz> References: <4F27120A.4040106@suse.cz> <4F27C54F.1010107@suse.cz> <4F27C9D4.3040105@suse.cz> <4F27CDBC.5020201@suse.cz> From: Kay Sievers Date: Tue, 31 Jan 2012 12:58:46 +0100 Message-ID: Subject: Re: network regression: cannot rename netdev twice To: Jiri Slaby Cc: "Eric W. Biederman" , Greg KH , LKML , ML netdev Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jan 31, 2012 at 12:17, Jiri Slaby wrote: > On 01/31/2012 12:13 PM, Kay Sievers wrote: >> This is a command sequence you type manually? > > Yea, and it is working with 3.3.0-rc1-next-20120124_64+. Not with > 3.3.0-rc1-next-20120131_64+. > >> You are sure that userspace is not working in the background, >> triggered by uevents, and comes into your way here? > > Note that krtek exists after the first command. But cannot be renamed > further. Yeah, I can confirm the problem here. I works fine with earlier kernels and fails with the latest -next: # uname -r 3.3.0-rc1-next-20120131+ # modprobe dummy # ip link set dummy0 name foo0 # ip link set foo0 name bar0 RTNETLINK answers: No such file or directory Kay