Full fsck might help lockmgr problems

Sorry for the vagueness of the info herein, but I figured someone might 
find it handy.  After moving up to the latest -current, as of about 24 
hours ago, I've been seeing a number of hangs, and occasional panics 
with 'lockmgr: locking against myself' messages.

After a few of these, and some wierdness involving a directory that 
couldn't be removed, on a hunch, I went single user and ran a full fsck 
of the filesystems.  Prior to that I'd been relying on background fsck.

The foreground fsck turned up some problems that the background fsck 
hadn't, dating back to some crashes earlier in February.

So far, no hangs, doing all the normal stuff I'd do to provoke one 
(typically, trying to build X + KDE would reliably deadlock).

Of course, because I was in a hurry to get this done, I don't have any 
more details that might help in tracking down the (possible) problem 
with background fsck.  Sorry 'bout that.

N