Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752881AbZGWOoP (ORCPT ); Thu, 23 Jul 2009 10:44:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752276AbZGWOoO (ORCPT ); Thu, 23 Jul 2009 10:44:14 -0400 Received: from iolanthe.rowland.org ([192.131.102.54]:55617 "HELO iolanthe.rowland.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752137AbZGWOoO (ORCPT ); Thu, 23 Jul 2009 10:44:14 -0400 Date: Thu, 23 Jul 2009 10:44:13 -0400 (EDT) From: Alan Stern X-X-Sender: stern@iolanthe.rowland.org To: Andrew Morton cc: Ferenc Wagner , , , Subject: Re: 2.6.31-rc3: replugging USB serial converter uses new device node In-Reply-To: <20090723012140.39f697d2.akpm@linux-foundation.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1042 Lines: 35 On Thu, 23 Jul 2009, Andrew Morton wrote: > (cc linux-usb) > > On Sat, 18 Jul 2009 22:04:57 +0200 Ferenc Wagner wrote: > > > Hi, > > > > Since upgrading to 2.6.31-rc3 from 2.6.30, my ttyUSB device number > > keeps increasing on each replug. Output of udevadm monitor: ... > > Dmesg is available at http://pastebin.com/d516e3e00. > > Can anyone say whether this is expected behaviour? It depends on whether a program is still holding the old device file open when the replug occurs. > Does it actually cause any observeable problems? I expect things will > get ugly once it runs out of range. The numbers will get reused after the corresponding device files are closed. For further discussion, see this thread: http://marc.info/?t=124828810800002&r=1&w=2 Alan Stern -- 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/