System error messages are sent by the SERRC system error macro and are
accompanied by a dump and possibly a system shutdown. The TPFDF product
issues these messages while running in an IBM Transaction Processing Facility
(TPF) environment or an IBM Airline Control System (ALCS) environment.
Once you locate the system error message, you will notice that the system
error number is framed in a box for quick access. Below each system
error message you will find the following information to help you analyze the
message.
- Information
- Description
- Program
- Indicates the name of the program that found the error when that program
is not available to the TPFDF product for display on the console and in the
dump.
- Error Message
- Provides the text of the system error message that is displayed on your
screen and printed in the dump, if there is any. If there are
supplementary messages appearing in the dump, you will find more than one
error message for each system error message.
In the message text, variable information is shown in italicized
lowercase letters. When a system error actually occurs, specific
information is provided for the variable information in the message that is
displayed on your screen or printed in the dump. Explanations of the
variable information are described immediately following the message
text.
- Note:
- If there is no error message text, the word None is printed.
- Explanation
- Provides a brief description of the error conditions and the reason why an
error occurred. A description of any variable information that is
included in the message text may also be included in this explanation.
- Note:
- If there is no explanation necessary, the word None is printed.
- System Action
- Indicates the action taken by the TPFDF product, TPF system, or ALCS
environment as a result of the error and provides an explanation that
indicates the results of the error.
- Note:
- If there is no system action taken, the word None is printed.
- User Response
- Provides suggestions for a user action to correct the problem.
Bulleted lists and numbered lists may be used to present this information to
you. A bulleted list is used to present several different
actions you can perform to resolve the problem. These actions are
ordered from the least severe to the most severe. A numbered
list is used whenever you must follow a procedure in sequential order to
resolve a problem.
Notes:
- If there is no user response necessary, the word None is printed.
- The user responses are suggestions. Verify any action
with your system support personnel first.
The following is an example of how system error messages and their
associated information are presented.
000820
Program: Displayed on the console and in the dump.
Error Message: None.
Explanation: This error occurs when a data level specified with a DFSSU macro already has a
block attached.
System Action: The entry control block (ECB) exits.
User Response: Do one of the following:
- Modify the program that caused the error to use a different data level on
the DFSSU macro.
- Release the block that is attached to the data level before the DFSSU
macro call.