System Error during Cobol Routine

[John Walker_1]

One of our programmers is running a Cobol routine which is generating the following problem:

"We are trying to write to a file (which we know to be corrupt as we had to rebuild it yesterday on Hong Kong)
but I've been animating the load program and this is the sequence of events that leads to the error.

- File is opened input-output (allows you to read & write to it)
- File is read; if record not found, program attempts to write the record
- First error is "attempt to access item beyond bound of memory", followed by
"115 unexpected signal" followed by "Fatal system error: buffer not free"

(Note that this happened only the first time I animated the program; every
subsequent attempt to far, the program just hangs on the "write" statement
in the COBOL program)"

Any ideas?