Ok, I just reconfigured the kernel to support SCSI for now.  It
compiles and boots fine, but some secondes after xlogin has started, I
get

 panic: pool_get: must have NOWAIT

The stack looks as follows

 _pool_get
 _nfsm_reqh
 _nfs_statfs
 _acctwatch
 _softclock
 _hardclock
 _clockintr
 _sparc_interrupt44c
 _mi_switch
 _tsleep
 _sys_select
 _syscall

-- 
      Benjamin <lorenz@dfki.de>