Re: Serial port IRQ strangeness
Hi,
You are trusting that kerneld will load the module serial.
However, this will happen just when kerneld is running,
but it is just later in the boot sequence.
Your system, just like mine, requires setserial for ttyS2
and ttyS3 to use the right interrupts.
Compile a kernel with serial built in.
Esa
-----------------------------------------------------------------
Esa Turtiainen http://www.turtiainen.dna.fi
etu@turtiainen.dna.fi fax: +358-0-801 3008
On Wed, 20 Nov 1996, Steve Gaarder wrote:
> I have a Debian 1.1 machine with 4 serial ports, each on its own IRQ.
> I edited /etc/rc.boot/0setserial to configure the appropriate IRQs.
>
> Question #1: At boot, when /etc/rc.boot/0setserial runs, it complains
> "no such device" for each of the devices. If I do the setserial as
> /etc/rc2.d/S14setserial (after ), it works. Why?
>
> Question #2: I am running diald. Periodically, the following messages
> appear in /var/log/messages:
>
> kernel: Serial driver version 4.13 with no serial options enabled
> kernel: tty00 at 0x03f8 (irq = 4) is a 16550A
> kernel: tty01 at 0x02f8 (irq = 3) is a 16550A
> kernel: tty02 at 0x03e8 (irq = 4) is a 16550A
> kernel: tty03 at 0x02e8 (irq = 3) is a 16550A
>
> and the IRQs for cua2 and cua3 are changed from 2 and 5 back to 4 and
> 3! Any ideas?
>
> thanks,
>
> Steven Gaarder Network and Systems Administrator
> gaarder@cmold.com C-MOLD, Ithaca, N.Y., USA
>
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