f i , I Return I Meaning , I Code , , I I .. ,5 IUser not available. A virtual machine attempted to execute al I ,function and specified a virtual machine currently notl I ,available for VMCF communication: I , , I I I. Not logged on. , I I· Not authorized for VMCF communication. I I I. Virtual machine authorized SPECIFIC for some otherl I I virtual machine. , I -r I 6 Protection violation. A virtual machine attempted to execute al I VMCF function that would result in a StORE or FETCH protectionl I violation. The virtual machine specified a data or bufferl I address that contained a storage key other than its current PSi, I key (assume key was nonzero). This return code is also set if I I a virtual machine attempts to receive data in a CP-owned sharedl I segment. , I .. I 7 SENDX data too large. A virtual machine attempted to execute al I SEND X request but specified a SENDX data length larger than the, I sink virtual machine external interrupt buffer. I I I I , 8 IDuplicate message. A virtual machine attempted to execute al I ISEND-type function and specified a message ID and virtuall I Imachine userid for which there was already an active message. , I I I 9 ITarget virtual machine in QUIESCE status. A virtual machine, I lattempted to execute a SEND-type function and specified a sinkl I ,virtual machine userid of a virtual machine in QUIESCE status. I I I -t 110 IMessage limit exceeded. A virtual machine attempted to executel I la SEND sub function but already had 50 messages active. The, I Ivirtual machine should clear any pending RESPONSE externall I ,interrupts or CANCEL previously sent messages in order tol I ,continue processing. , I I .. 111 IREPLY canceled. The source virtual machine executed a CANCEL, I Ito a previous SEND/RECV request. The sink virtual machine had, I lalready RECEIVED the message but had not yet executed a REPLy.t 1 IThe sink virtual machine REPLY in this case is canceled. The' I Isink virtual machine will get return code 12 (message notl , 'found) when it executes the REPLY subfuncticn. , I I .. 112 ,Message not found. A virtual machine attempted to execute al I Isubfunction and specified a message ID and virtual machine, I luserid for a message that does not exist. The message may have, I lexisted at one time but could have been cancelled by tbet I loriginator. , I -.I Figure 20. DIAGNOSE Code X'68' Return Codes (Part 2 of 3)
168 IB" VM/370 System programmer's Guide

rr-------T------------------------------------------------------------------, I Return Meaning I Coda I 113 Synchronization error. The sink virtual machine attempted tot I respond to.a message for. which not yet the SENDI I external 1nterrupt. Tn1S cond1t10n can occur 1f the sinkl I virtual machine is anticipating certain messages but does notl I wait for the SEND external interrupt. I • I 114 ICANCEL too late. A virtual machine attempted to CANCEL al I Imessage that had already been processed. The sink virtuall I Imachine had already responded with RECEIVE or REJECT (SENDI I I request) or REPLY or REJECT (SEND/RECV request). This returnl I Icode is also set if a virtual machine attempts to CANCEL al I ISENDI request for which the sink virtual machine had alreadYI 1 Ireceived the SEND external interrupt. I • I 115 IPaging I/O error. A virtual machine attempted to execute al I Isubfunction which resulted in an uncorrectable paging 1/01 I lerror. This is a hardware failure. I I I I 116 I Incorrect length. A virtual machine executed a RECEIVE orl I IREPLY function and specified a RECEIVE buffer length less thanl I Ithe source virtual machine SEND data length or a REPLY datal I Ilength larger than the source virtual machine REPLY bufferl I Ilength. The source virtual machine will receive a datal I Itransfer return code identifying the condition. I t I I 1 17 IDestructive overlap. A virtual machine executed a RECEIVE orl I IREPLY function and specified a RECEIVE buffer address whichl I loverlapped the source virtual machine SEND data address or al 1 IREPLY data address that overlapped the source virtual machinel I IREPLY buffer address. This condition can occur only when al 1 Ivirtual machine is sending messages to itself (a "wrapi 1 I connection") • I I I I 118 IUser not authorized for PRIORITY messages. A virtual machinel 1 lattempted to send a PRIORITY message to a virtual machine thatl I Iwas not authorized to accept PRIORITY messages (that is, hadl I Inot executed the AUTHORIZE function with the PRIORITY option). I • I -t 119 IData transfer error. A virtual machine executed a request thatl I Iresulted in a data transfer error condition associated with thel I lother virtual machine. The return code is returned to the sinkl I Ivirtual machine to indicate that the transaction did notl I Icomplete successfully. I • I I I 20 ICANCEL - busy. A virtual machine attempted to cancel a messagel I Ibeing processed. If this is a SENt/RECV request and thel I IRECEIVE subfunction is in process, repeated retries may cancel, I I the REPLY subfunction. I , , -.J Figure 20. DIAGNOSE Code 1'68' Return Codes (Part 3 of 3) Part 2. Control Program (CP) 16q