nwfs support is completly broken in 5-CURRENT

It seems to be that NWFS support doesn't work in CURRENT at all.
On 5.2.1-RELEASE any ncp utils (ipxping, ncplogin... etc) cause
a kernel trap:

Kernel trap 12 with interrupts disabled
Fatal trap 12 while in kernel mode
fault code: supervisor read, page not present
current process: ncplist (or any other ncp process)

Today I cvsup'd to 5.3-BETA7,
compile in NWFS support and panic is gone, but
ncplogin and others says "syserr = Network is not unreachable"
(But Netware stuff configured, inetface whith 802.2 frame is up
and IPX network number assigned, IPXrouted running)

Then I add to the kernel "device io" (for X server)
and then ncp utils begin cause a panic again!

FeeBSD 4.6 box in the same network work with NWFS fine.
Is anybody have an expirience with NWFS/NCP in CURRENT?
-- 
With best regards
Pavel Lobach