For those who are experiencing the "illegal request" scsi problems with
1.1, the following source patch to src/sys/arch/mac68k/dev/ncr5380.c will
undo the earlier (around 10/31) change that introduced the problem.  This
does _not_ necessarily correct the problem, just avoids it for now, until a
final fix can be generated!

*** ncr5380.c.old
--- ncr5380.c.new
***************
*** 392,398 ****
  #ifdef AUTO_SENSE
                if (link) {
                        link->link = reqp;
!                       link->xcmd.bytes[link->xs->cmdlen-2] |= 1;
                }
  #endif
        }
--- 392,398 ----
  #ifdef AUTO_SENSE
                if (link) {
                        link->link = reqp;
!                       link->xcmd.bytes[link->xs->cmdlen-1] |= 1;
                }
  #endif
        }

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