Why would RGZPFM hang?

[CWilt@xxxxxxxxxxxx]

All,

Had a job run this weekend that seem to hang during a RGZPFM command.

The job log has the following:
*NONE      Command                      09/17/04  21:00:19.170392  QCADRV
QSYS  
                                     Message . . . . :     9400 - RGZPFM
FILE(COMHST) 
CPC1207    Completion              50   09/20/04  02:15:01.441480  QWTMMTRS
QSYS  
                                     Message . . . . :   Subsystem ending
immediately.


The COMHST file being reorg'd has the following settings:
WAITFILE   *IMMED   
WAITRCD       60    
#records   4383

The RGZPFM above was the 2nd to last command in the CL program, it was
followed by a RMVLIBLE command and then the ENDPGM.


Why would the reorg not finish nor throw an exception if the file was locked
by some other process?


Thanks,
Charles