mysterious file system corruption

[MJ Rosenblum]

I need some advice.  Had 3 corruptions on /tmp in 2 days.  First time
couldn't even do ls -l, seems inode of one file was locked.  Users com-
plained of problems when editing.  fsck showed lots of dup blocks. df
reported only a few blocks left in /tmp, but du showed only a few being
used.  Had to fsck all 3 times, but had to shutdown hard first time
because of locked inode.

Has anyone seen this before?  5.0.1 VAX

		Marty Rosenblum