sp_cop would not run
The following errors appeared in the event_log:
06/04/07 09:55 Notice: Result (22) Invalid argument calling semop to get semaphore (3008) [sp_ordr(shs)/5790]
06/04/07 09:55 Error: sem_enter: sem_num = 1 semval = -1 semncnt = -1 semzcnt = -1 pid = -1 ctr = 0 [sp_ordr(que)/5790]
This was a new box setup and in the default .login there was a default setting "tostop" that would not to let anything run in the background.
Once the default setting "tostop" was removed from .login, Shareplex started without errors