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Re: Tracing the Console

To: "John D. Davis" <johnd@Stanford.EDU>
Subject: Re: Tracing the Console
From: James Simmons <jsimmons@transvirtual.com>
Date: Mon, 13 Aug 2001 16:18:36 -0700 (PDT)
Cc: Debian MIPS list <debian-mips@lists.debian.org>, SGI MIPS list <linux-mips@oss.sgi.com>
In-reply-to: <Pine.GSO.4.31.0108131556230.21357-100000@myth1.Stanford.EDU>
Sender: owner-linux-mips@oss.sgi.com
> I am currently trying to trace the console on and R4400 Indy. It seems
> that everything goes through console.c using either con_write or
> con_put_char. It would be great if I could communicate with someone that
> has a thorough understanding of this code and its interaction with
> newport_con.c.  

Okay. I could explain this code if you want.

> I have put some prtink statements in and it seems that
> newport_putcs is called several more times than it should. 

Don't do that. Printk calls newport_putcs so if you have printk in
newport_putcs it will going into a endless loop. You could redirect the
console to a different tty device, say a serial console. 



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