ZFS snapshot problem

[Niki Denev]

I started seeing this in the last few days :

# zfs list | grep zfs2/backups
zfs2/backups                    759M   454G   747M  /zfs2/backups
zfs2/backups at 16-02-08          11.9M      -   747M  -
zfs2/backups at 17-02-08              0      -   747M  -

# ls -la /zfs2/backups/.zfs/
ls: snapshot: Bad file descriptor

And the snapshots seem inaccessible... Any ideas are appreciated.

The machine is running 7.0-PRERELEASE from 02/02/08,
and has 5 days uptime (the problem began 2 days ago, judging from my
backup script mails)

 --Niki