Stealth port problems

[Giuliano Pochini]

Benjamin Herrenschmidt wrote:
>
> >
> >Hi!  I have troubles with my stealth port on a G3-blue. When it runs at
> 115200
> >ifconfig
> >shows a lot of overruns. At 57600 it works fine, but it's slow :-((
> >
> >Does any of you own that serial port ?  Suggestions ??
>
> Which kernel ? With the DMA serial driver, it should work better than
> that... The Stealth hardware is probaly not responsible, it's just a line
> driver plugged instead of the modem, the actual zilog SCC is part of
> Apple's ASIC.

Now I run XF4 and the problem is even worse. I get underruns at 38400
:-(((((((((((((

What can I do ?  And why X affects the serial port ??

Bye.

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