Zfs import issue

[Ram Chander]

Hi,

 I am importing zfs snapshot to freebsd-9 from anther host running
freebsd-9.  When the import happens, it locks the filesystem, "df" hangs
and unable to use the filesystem. Once the import completes, the filesystem
is back to normal and read/write works fine.  The same doesnt happen in
Solaris/OpenIndiana.

# uname -an
FreeBSD hostname 9.0-RELEASE FreeBSD 9.0-RELEASE #0: Tue Jan  3 07:46:30
UTC 2012     root at farrell.cse.buffalo.edu:/
usr/obj/usr/src/sys/GENERIC  amd64

Zfs ver: 28


Any inputs would be helpful. Is there any way to overcome this freeze ?


Regards,
Ram