Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759225AbXEQWOe (ORCPT ); Thu, 17 May 2007 18:14:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756665AbXEQWO1 (ORCPT ); Thu, 17 May 2007 18:14:27 -0400 Received: from caramon.arm.linux.org.uk ([217.147.92.249]:2712 "EHLO caramon.arm.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756132AbXEQWO0 (ORCPT ); Thu, 17 May 2007 18:14:26 -0400 Date: Thu, 17 May 2007 23:14:18 +0100 From: Russell King To: CIJOML Cc: Linux-kernel@vger.kernel.org Subject: Re: Having problems with 8250 module in 2.6.20,2.6.21... Message-ID: <20070517221418.GA15498@flint.arm.linux.org.uk> Mail-Followup-To: CIJOML , Linux-kernel@vger.kernel.org References: <200705172220.10469.cijoml@volny.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200705172220.10469.cijoml@volny.cz> User-Agent: Mutt/1.4.2.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1506 Lines: 47 On Thu, May 17, 2007 at 10:20:10PM +0200, CIJOML wrote: > Hi, > > with kernel 2.6.20 and 2.6.21 I have problem with my good old router > Dell Dual P2 333MHz. > > Module 8250 getts loaded, but UPS driver is unable talk to UPS: > > Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled > eth0: setting full-duplex. > eth1: setting full-duplex. Looks like no serial ports were found? > ttyS0: LSR safety check engaged! > ttyS0: LSR safety check engaged! > ttyS1: LSR safety check engaged! > ttyS1: LSR safety check engaged! But something in userspace tried to add some, but they don't look like a serial port - the LSR register contains an impossible value for a serial port to be there. > ttyS1: LSR safety check engaged! > ttyS1: LSR safety check engaged! > ttyS1: LSR safety check engaged! > ttyS1: LSR safety check engaged! > ttyS1: LSR safety check engaged! > ttyS1: LSR safety check engaged! > ttyS1: LSR safety check engaged! > ttyS1: LSR safety check engaged! More attempts at trying to open the nonexistent serial port. > Does anybody work on this problem or can help? Please track down the last kernel version which worked. -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: - 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/