devfs

[TSaplin Mikhail]

Hi all i have a problem with devfs device hiding.
My system is FreeBSD 6.0 (i386 and amd64, compiled from last sunday source 
(RELENG_6))

After mounting defs:
#mount -t devfs devfs /tmp/proba

first devfs command:
# devfs -m /tmp/proba rule add type disk hide
devfs rule: ioctl DEVFSIO_RADD: Input/output error

the second command hangs:
# devfs -m /tmp/proba rule add type disk hide

command doesnt responds on HUP and TERM signals