The COMCHECK SBC option formats information from the supplemental
branch entry console (SBC) control block.
The SBC contains information about the delayed issue queue. The
queue contains messages and delete operator message (DOM) requests
issued by system initialization and branch-entry WTO/WTOR/DOM processing
in programs that run when a Supervisor Call (SVC) instruction cannot
be issued or require the request to be handled synchronously. The
system issues requests on the delayed issue queue as SVC requests.
The following is an example of a COMCHECK SBC report:
COMMUNICATION TASK ANALYSIS
BRANCH-ENTRY AND NIP WTO/WTOR/DOM INFORMATION
DELAYED ISSUE QUEUE BROKEN: NO
DELAYED ISSUE QUEUE FULL: NO
DELAYED ISSUE TASK IS PROCESSING DELAYED ISSUE QUEUE: NO
DELAYED ISSUE SRB CAN BE SCHEDULED: YES
NIP WTO/WTOR/DOM PROCESSING ACTIVE: NO
NUMBER OF ACTION/WTOR MESSAGES NOT LOGGED: 0
TOTAL NUMBER OF MESSAGES NOT LOGGED: 0
TOTAL NUMBER OF SYNCHRONOUS MESSAGES NOT DISPLAYED: 0
NUMBER OF NIP MESSAGES ON THE DELAYED ISSUE QUEUE: 0
TOTAL NUMBER OF MESSAGES ON THE DELAYED ISSUE QUEUE: 0
NUMBER OF NIP DOM REQUESTS ON THE DELAYED ISSUE QUEUE: 0
TOTAL NUMBER OF DOM REQUESTS ON THE DELAYED ISSUE QUEUE: 0
INFORMATIONAL MESSAGES SUPPRESSED DURING NIP: YES
NUMBER OF INFORMATIONAL MESSAGES SUPPRESSED DURING NIP: 801
TOTAL NUMBER OF BWJE REQUESTS ON THE DELAYED ISSUE QUEUE: 0
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The following field appears in the report:
- DELAYED ISSUE QUEUE BROKEN
- One of the following:
- YES
- The delayed issue queue is valid.
- NO
- The delayed issue queue is not valid.
- DELAYED ISSUE QUEUE FULL
- One of the following:
- YES
- The delayed issue queue is full. The delayed issue task can free
up space on the queue during normal processing, or a different program
can obtain space for additional entries. If the condition persists,
the queue may not be valid.
- NO
- The delayed issue queue is not full.
- DELAYED ISSUE TASK IS PROCESSING DELAYED ISSUE QUEUE
- One of the following:
- YES
- The delayed issue task is actively processing entries on the delayed
issue queue.
- NO
- The delayed issue task is not actively processing entries on the
delayed issue queue.
- DELAYED ISSUE SRB CAN BE SCHEDULED
- One of the following:
- YES
- The service request block (SRB) routine for the delayed issue
task is initialized and can be scheduled.
- NO
- The routine has not been initialized or has abended.
- NIP WTO/WTOR/DOM PROCESSING ACTIVE
- One of the following:
- YES
- The system initialization service that processes WTO, WTOR and
DOM requests is active.
- NO
- The system initialization WTO/WTOR/DOM service is not active.
One of the following occurred:
- The dump was taken early in system initialization, before the
service was initialized.
- The dump was taken after COMMTASK started handling WTO, WTOR,
and DOM requests.
- NUMBER OF ACTION/WTOR MESSAGES NOT LOGGED
- The number of:
- WTO messages requiring operator action
- WTOR messages that could not be logged on SYSLOG, because the
system was unable to add the message to the delayed issue queue
- TOTAL NUMBER OF MESSAGES NOT LOGGED
- The total number of WTO and WTOR messages not logged on SYSLOG.
The system was unable to log the messages because they could not
be added to the delayed issue queue.
- TOTAL NUMBER OF SYNCHRONOUS MESSAGES NOT DISPLAYED
- The total number of synchronous WTO and WTOR messages not displayed.
They were not displayed because WTO/WTOR processing was unable to
display them on a console with master authority.
- NUMBER OF NIP MESSAGES ON THE DELAYED ISSUE QUEUE
- The number of messages on the delayed issue queue that were issued
during system initialization.
- TOTAL NUMBER OF MESSAGES ON THE DELAYED ISSUE QUEUE
- The total number of messages on the delayed issue queue.
- NUMBER OF NIP DOM REQUESTS ON THE DELAYED ISSUE QUEUE
- The number of DOM requests on the delayed issue queue that were
made during system initialization.
- TOTAL NUMBER OF DOM REQUESTS ON THE DELAYED ISSUE
QUEUE
- The total number of DOM requests on the delayed issue queue.
- INFORMATIONAL MESSAGES SUPPRESSED DURING NIP
- One of the following:
- YES
- Informational messages are suppressed during system initialization.
The system sends the messages to SYSLOG.
- NO
- Informational messages are not suppressed during system initialization.
The system displays the messages on the console.
- NUMBER OF INFORMATIONAL MESSAGES SUPPRESSED DURING
NIP
- The total number of informational messages suppressed during system
initialization. If informational messages are not suppressed during
NIP processing, this field contains zero.
- TOTAL NUMBER OF BWJE REQUESTS ON THE DELAYED ISSUE
QUEUE
- The number of job-end requests on the delayed issue queue.