When the latch is not held by the specified ASID:TCBADDR, you will get the following output:
++ FREE LATCH:llllllll failed . . .
When latches are released, you get messages in the following form:
++ LATCH:llllllll RELEASED
++ Resetting Reserved FSN for DIB:dddddddd
From hhhhhhhhhhh1 To hhhhhhhhhhh2
DataSet:PdseDsname