What does this mean?

[Sam Bassett RCS]

	We have an Iris 4D/25 that keeps on complaining:

Feb  6 01:19:23 ra-iris5 sendmail[477]: NOQUEUE: SYSERR: flock failed for db @ [/usr/lib/aliases]: No record locks available
Feb  6 01:24:24 ra-iris5 sendmail[479]: NOQUEUE: SYSERR: flock failed for db @ [/usr/lib/aliases]: No record locks available
Feb  6 01:24:25 ra-iris5 sendmail[481]: NOQUEUE: SYSERR: flock failed for db @ [/usr/lib/aliases]: No record locks available

	semdmail was started with '/usr/lib/sendmail -bz -q15m'.  I have
tried various combinations of setting permissions on directories, running
'newaliases', etc., with no luck.
	BTW, the message (according to 'strings') comes from a routine
named 'daemon.c' in the sendamail executable . . .

HAALLP!

(P.S. Several other 4D/25s, ostensibly identical, do not have the same 
problem . . .)

Sam'l Bassett, Sterling Software @ NASA Ames Research Center, 
Moffett Field CA 94035 Work: (415) 604-4792;  Home: (415) 969-2644
samlb at well.sf.ca.us                     samlb at ames.arc.nasa.gov 
<Disclaimer> := 'Sterling doesn't _have_ opinions -- much less NASA!'