Re: about serial console problem

From: Eric W. Biederman (
Date: Tue Jul 24 2001 - 15:10:44 EST

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.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

This archive was generated by hypermail 2b29 : Tue Jul 31 2001 - 21:00:18 EST