Greetings and happy new year,

I'm having some problems with NetBSD 1.1 and the Adaptec 2940 (wide) 
which results in

Dec 30 16:32:22 hock /netbsd: ahc0: ahc_scsi_cmd: more than 256 dma segs

followed by a freeze (no panic). This appeears to be the cause of the
lock ups as it's happened a few times.

Could some kind device driver/kernel hacker please shed some light
on this problem and perhaps provide some advice as to a fix. 

Please let me know if you need more detail wrt the system config.

Many thanks,
Greg.