[Voyage-linux] Interrupt Problem with COM3 and COM4

[Rob J. Epping]

Hi Dan,

On Thu, Jun 30, 2011 at 11:29 AM, Dan Boss <daniel.boss at tripleeye.ch> wrote:
> Hi
>
> I try to run 4 serial lines (COM1 to COM4) on a IEI KINO-945GSE under Voyage Linux 0.7.0.
> Serial lines COM1 and COM2 work without a problem but as soon as my application wants to access the devices /dev/ttyS2 and /dev/ttyS3 I get the following kernel message:
>
> [   32.562273] irq 10: nobody cared (try booting with the "irqpoll" option)
> [   32.563011] Pid: 2887, comm: acid Not tainted 2.6.32-voyage #1
[SNIP kernel oops]
> [   32.563011] Disabling IRQ #10
>
> When trying to receive data through the serial line a lot of it is lost.
> I already tried the bootoption "irqpoll" with the result, that the kernel message no longer shows up, but the data received is still corrupt.
>
> I checked the IRQs in the Bios (IRQ 10 for COM3, IRQ 11 for COM4) and they are also detected this way during kernel boot, so no obvious error here.
>
> Is anybody familiar with this or a similar problem and can give me some pointers for a possible solution?

Are ttyS2 and ttyS3 detected with IRQ 10/11? Can be found in dmesg output.

AFAIK these are non-standard IRQ for these ports

> Thank you
>
> Dan Boss
-- 
GRTNX,
RobJE