Quoting is (19-Apr-01 06:45:08):

> [...]

> - if this doesn't help, use options LEV6_DEFER in your kernel
> configuration.

57600 - still errors

> - if this still doesn't help, increasing SERIBUF_SIZE might slightly
> decrease
>   the overflow rate a bit.

4096 was default
20000 - still errors
200000 (!) - still errors

> - if you have a disk controller that does LARGE dma transfers beyond
> what
>  Commodore specified as maximum allowable without being interuptible
>  by the CPU, tough luck. We did our best to limit DMA transfers and
>  corresponding
>  68040/68060 cache flushes in the NetBSD drivers if ser0 is used,
>  but you might be forced to buy a serial port with a deeper fifo.

38400 also creates silo errors.

Only at 19200, the error disappear!
Like this, I can't use Internet !

If your suggestions fail, I guess I can give it up to run the serial
properly at 57600 ;((

-- 
Cu  Georges Heinesch, Luxembourg
    geohei@geohei.lu
    http://www.geohei.lu
    PGP RSA & DH/DSS public key on request and on public servers

... ELLX