Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 24 Jul 2001 16:17:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 24 Jul 2001 16:16:50 -0400 Received: from ebiederm.dsl.xmission.com ([166.70.28.69]:48430 "EHLO flinx.biederman.org") by vger.kernel.org with ESMTP id ; Tue, 24 Jul 2001 16:16:37 -0400 To: Barry Wu Cc: linux-kernel@vger.kernel.org Subject: Re: about serial console problem In-Reply-To: <20010723065212.31153.qmail@web13901.mail.yahoo.com> From: ebiederm@xmission.com (Eric W. Biederman) Date: 24 Jul 2001 14:10:44 -0600 In-Reply-To: <20010723065212.31153.qmail@web13901.mail.yahoo.com> Message-ID: Lines: 22 User-Agent: Gnus/5.0808 (Gnus v5.8.8) Emacs/20.5 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 Original-Recipient: rfc822;linux-kernel-outgoing Barry Wu writes: > Hi, all, > > I am porting linux 2.4.3 to our mipsel evaluation > board. Now I meet a problem. Because I use edown > to download the linux kernel to evaluation board. > I update the serial baud rate to 115200. > I use serial 0 as our console, and I can use > printk to print debug messages on serial port. > But after kernel call /sbin/init, I can not > see "INIT ... ..." messages on serial port. > I suppose perhaps I make some mistakes. But when > I use 2.2.12 kernel, it ok. > If someone knows, please help me. Thanks! It's a bug in init. INIT clears the CREAD flag which means all reads to the console will be dropped. Why it /sbin/init works before 2.4.3 is a mystery. Eric - 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/