Matrix ETERNITY NE System Manual 1125
54 The message queue was removed
55 Sleeping on a full message queue condition, the process caught a signal
56
Invalid msqid value, or non-positive mtype value, or invalid msgsz value
(less than 0 or greater than the system value MSGMAX)
57
The system does not have enough memory to make a copy of the
message pointed to by msgp
Error Code Error Description