In this case a task needed access to the Disk Journal in question for automatic recovery of the transaction.
The Disk Journal in question was in the middle of the Condense phase of ARCHIVE JOURNAL so the online transaction has to wait until it completes.
CV will put out the DC203004 message and then put the task into a WAIT for 10 seconds (using #SETIME TYPE=WAIT so the wait is for ICEECB) and when the timer pops it will check the Journal to see if the recovery can now proceed.
This is a rare occurrence but client had INACTIVE INTERVAL set to 10 seconds as well, so one of those 10 second intervals, the Stall interval (INACTIVE INTERVAL) popped before the ICEECB timer popped.
Again this is rare but because we have a set interval of 10 seconds for rechecking the journal, we suggested they set INACTIVE INTERVAL to 11 seconds.