[Bill Dare]  
    I am on the same platform and have had no problems.  Normally we
have about 4000 locks.  I have a monitor script to keep an eye on locks
and it has reported errors when users have as many as 500,000 locks.
The script uses onstat -k and it works fine.

    Bill

sending to informix-list

Hi Malcolm.

I use this:

# Display Informix locks - Doug Lawry, 16/04/03

(dbaccess sysmaster 2>&1 | egrep '^[a-z]') <<!

SELECT      dbsname     [1,18]      database,
           tabname     [1,18]      table,
           username    [1,08]      user,
           type                    lock,
           tty         [6,12]      tty,
           pid         ::SMALLINT  process,
           count(*)    ::SMALLINT  number

FROM        syslocks,
           syssessions

WHERE       dbsname != "sysmaster"
AND         sid = owner

GROUP BY    1, 2, 3, 4, 5, 6
ORDER BY    1, 2, 3, 4, 5, 6

!

select * from syslocks is a good starting point