hauke@Espresso.Rhein-Neckar.DE wrote:

> >Both sm(4) and new sn(4) use bus_dma(9)
> 
> sys/dev/ic/sm91cxx.c is DMA free, AFAICS? Unfortunately, I might add... I
> get exactly the same speed over ftp (~650 KByte/sec) as with the onboard
> sn(4), although the interface is 100 MBit.

Ah, you are right.
I blindly thought 100Base-TX chips must have DMA capability...

> Can you try the equivalent of a 'for ff in `ls *.tgz`; do gzip --test $ff;
> done' in a snapshot's binary/sets directory? I see crc errors on every
> second or third set, but never on the first one.

I get *.tgz sets from daily-build and try the above checks (~10 times),
but I see no errors.

Is your kernel is GENERIC or some custom one?
---
Izumi Tsutsui