From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 29 May 2001 14:17:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 29 May 2001 14:17:41 -0400 Received: from cliff.mcs.anl.gov ([140.221.9.17]:16258 "EHLO mcs.anl.gov") by vger.kernel.org with ESMTP id ; Tue, 29 May 2001 14:17:35 -0400 To: linux-kernel@vger.kernel.org Subject: serial console problems under 2.4.4/5 From: "Narayan Desai" Date: 29 May 2001 13:17:28 -0500 Message-ID: User-Agent: Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.1 (Bryce Canyon) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi. I have started having serial console problems in the last bunch of kernel releases. I have tried various 2.4.4 and 2.4.5 ac kernels (up to and including 2.4.5-ac4) and the problem has persisted. The problem is basically that serial console doesn't recieve. I know that the hardware works properly, and lilo and other kernels even work fine from serial console. As far as I can tell, only one direction is broken, serial receive. (ie, an echo foo > /dev/ttyS0 shows up on the serial console, but an echo to the serial device on the other end of the console never shows up) The serial hardware is detected: Serial driver version 5.05b (2001-05-03) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled ttyS00 at 0x03f8 (irq = 4) is a 16550A ttyS01 at 0x02f8 (irq = 3) is a 16550A the pertinant parts of .config are: CONFIG_SERIAL=y CONFIG_SERIAL_CONSOLE=y # CONFIG_SERIAL_EXTENDED is not set CONFIG_SERIAL_NONSTANDARD=y # CONFIG_COMPUTONE is not set CONFIG_ROCKETPORT=y # CONFIG_CYCLADES is not set Has anyone else seen this, or have any ideas what is broken? thanks... -nld