Re: serial console broken in 2.4.4?

Reto Baettig (baettig@scs.ch)
Mon, 14 May 2001 09:06:45 +0200


This is not a real patch but it works fine for me:

--- drivers/char/serial.c.orig Thu May 3 09:29:00 2001
+++ drivers/char/serial.c Thu May 3 09:29:34 2001
@@ -1764,8 +1764,8 @@
/*
* !!! ignore all characters if CREAD is not set
*/
- if ((cflag & CREAD) == 0)
- info->ignore_status_mask |= UART_LSR_DR;
+// if ((cflag & CREAD) == 0)
+// info->ignore_status_mask |= UART_LSR_DR;
save_flags(flags); cli();
if (uart_config[info->state->type].flags & UART_STARTECH) {
serial_outp(info, UART_LCR, 0xBF);

This stuff got changed between 2.4.3 and 2.4.4 but I don't know why and
it broke my serial console. Please let me know when you know the "real"
fix for this problem.

Reto

Konstantin Boldyshev wrote:
>
> Hello,
>
> I have noticed strange serial console behaviour in 2.4.4.
> I have system with gettys on ttyS0 and tty1.
> When I boot with usual console (set to tty1), getty on ttyS0 works.
> When I boot with console set to ttyS0 ("console=ttyS0,9600n8"),
> getty on ttyS0 doesnot respond on input (although ps shows it running);
> all kernel messages are showed on ttyS0, but it seems that _input_ is
> disallowed/broken. Things were okay somewhere around (AFAIR) 2.4.0pre..
> Is this a known 2.4 bug? Any patch to fix this?
>
> --
> Regards,
> Konstantin
>
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