From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Content-Type: text/plain; charset="us-ascii" From: Arun Dharankar To: linuxppc-embedded@lists.linuxppc.org Subject: Serial console ports on systems with no console connected. Date: Mon, 8 Jul 2002 21:27:16 -0400 MIME-Version: 1.0 Message-Id: <200207082127.16518.ADharankar@ATTBI.Com> Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Greetings... This question is common to both ppcboot and ppc-linux. The ppcboot I am using is 1.1.5 and Linux kernel 2.4.18. If there is no console connected to the serial console port, is it true that a thread sending output to it hangs? If this is ppcboot the bootup process would not proceed? What consequences would we see on Linux? I have a MPC8260ADS based board, and see the above behavior under ppcboot. Under Linux using a BDI debugger the thread sending output to the console hangs. Perhaps under Linux we can set the termio modes to have no flow control, but am not sure if this will solve the problem. If this is true, is there a clean/proper way to have a setup such that this hang can be avoided? Best regards, -Arun. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/