JPS63140340A - Information acquiring system for abnormal completion of task - Google Patents

Abstract

PURPOSE:To efficiently analyze the cause of the abnormal completion of a task, by providing a cause analyzing means which analyzes the cause by which the task is completed abnormally. CONSTITUTION:An abnormal information reference means 4 refers to the abnormal information 1 of the task where the abnormal state of the task is stored at the time of requesting the abnormal completion information of the task. The cause analyzing means 5 analyzes the cause by which the task is completed abnormally from the information obtained by a reference means 4. When it is recognized that the cause analyzed by the analyzing means 5 is generated exceptionally, an exception information acquiring means 6 acquires exception information from the information obtained by the reference means 4. Also, a required information acquiring means 7 acquires the information requested from an aport exit routine from the information obtained by the reference means 4. In such way, it is possible to analyze the cause of the abnormal completion of the task efficiently.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to processing in electronic computer systems, and in particular, the present invention relates to processing of electronic computer systems, and in particular, a task in an abort exit routine that is called when a task terminates abnormally is a task that acquires information about the abnormal termination. Concerning an abnormal termination information acquisition method.

[Conventional technology]

Conventionally, methods for acquiring information about abnormal task termination have only collected information through memory dumps, and there has been no means to analyze the cause of abnormal task termination.

[Problem that the invention seeks to solve]

In the conventional task abnormal termination information acquisition method described above, in each abort exit routine, the application program must analyze the cause of the abnormal task termination based on the abnormality information of tasks that are highly dependent on O3/hardware. There are disadvantages that cannot be avoided.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for acquiring information on abnormal termination of a task, which eliminates the above-mentioned drawbacks with a simple configuration and can efficiently analyze the cause of abnormal termination of a task.

[Means for solving problems]

The configuration of the task abnormal termination information acquisition method of the present invention is such that the abnormal state of a task is stored when requesting task abnormal termination information by an abort exit routine that is called when a task in computer system task management terminates abnormally. An abnormality information reference means for referencing task abnormality information, a cause analysis means for analyzing the cause of the abnormal termination of a task from the information obtained by this abnormality information reference means, and a cause analyzed by this cause analysis means for determining whether an exception has occurred. When
exception information acquisition means for acquiring exception information from the information obtained by the abnormality information reference means; and necessary information acquisition means for acquiring information requested from the abort exit routine from the information obtained by the abnormality information reference means. It is characterized by having the following.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention, including task abnormality information 1 in which the abnormal state of the task is stored when the task terminates abnormally, and a request for task abnormality information requested by the abort exit routine. 2. Abnormal termination cause storage area 3 that stores the cause of the abnormal termination of a task; Abnormality information reference means 4 that refers to the abnormality information of the task in which the abnormal state of the task is stored; From the information obtained by the abnormality information reference means. , cause analysis means 5 for analyzing the cause of abnormal termination of a task; and exception information acquisition for acquiring exception information from the information obtained by the abnormality information reference means 4 when the cause analyzed by the cause analysis means 5 is the occurrence of an exception. Means 6, Apo-I
- Consists of necessary information acquisition means 7 that acquires information requested from the exit routine from information obtained by the abnormality information reference means 4.

In the above configuration, the abnormality information reference means 4 that refers to the abnormal state of the task in which the abnormal state of the task is stored, as shown in the flowchart of the operation of the abnormality information reference means 4 in FIG. Refers to the stack storing information for each calling module of the process in which the exception has occurred, and in step 12 refers to the process control table storing information for controlling the process in which the exception has occurred.

The cause analysis means 5 analyzes the cause of the abnormal termination of the task from the information obtained by the abnormality information reference means 4.
As shown in the flowchart of the operation of the cause analysis means 5 in the figure, if the abnormality information reference means 4 determines in judgment step 21 that the cause of the abnormal termination of the task is the occurrence of an exception, control is passed to step 22. In step 22, the occurrence of an exception is displayed in the abnormal termination cause storage area 3, and in judgment step 23, the abnormality information reference means 4 determines that the cause of the abnormal termination of the task is forced termination in the program. , the control is passed to step 24, and in step 24, the cause of abnormal termination is stored and the forced termination in the program is displayed in area 3. In judgment step 25, the abnormality information reference means 4 determines that the cause of the abnormal termination of the task is the parent. If it is determined that the child task has been forcibly terminated due to the termination of the task, control is passed to step 26, and in step 26, the forcible termination of the child task due to the termination of the parent task is displayed in the abnormal termination storage area 3, and the judgment is made. In step 27, if the abnormality information reference means 4 determines that the cause of the abnormal termination of the task is forced control from the console, control is passed to step 28, and step 2
In Step 8, a forced termination from the console is displayed in the abnormal termination cause storage area 3, and in judgment step 29, if the abnormality information reference means 4 determines that the cause of the abnormal termination of the task is forced termination by the system, Control is passed to step 295, and in step 295, forced termination by the system is displayed in the abnormal termination cause storage area 3.

When the cause analyzed by the cause analysis means 5 is the occurrence of an exception, the exception information acquisition means 6 that acquires exception information from the information obtained by the abnormality information reference means 4 operates according to the operation of the exception information acquisition means 6 shown in FIG. As shown in the flowchart, if it is determined in the determination step 31 that the cause analyzed by the cause analysis means 5 is the occurrence of an exception, control is passed to step 32, and in step 32, the abnormality information 1 of the task is determined.
The address of the instruction in which the exception occurred is obtained from step 33, and if it is determined in judgment step 33 that the type of exception is an access exception to segment 1, control is passed to step 34, and in step 34, abnormality information of the task is obtained. 1, and if it is determined in judgment step 35 that the type of exception is a process access exception, control is passed to step 36, and in step 36, the segment number that is attempted to be accessed is obtained from task abnormality information 1. The process number that the attempt was made to access is obtained, and if it is determined in judgment step 37 that the type of exception is a semaphore exception, control is passed to step 38, and step 3
In step 8, the semaphore segment number is acquired from the abnormality information 1 of the task, and if it is determined in judgment step 39 that the type of exception is a channel exception, step 39
5, and in step 395, the channel number is obtained from the abnormality information 1 of the task.

The necessary information acquisition means 7 that acquires the information requested from the abort exit routine from the information obtained by the abnormality information reference means 4 performs the judgment step 51 as shown in the flowchart of the operation of the necessary information acquisition means 7 in FIG. In step 52, if it is determined that the task abnormality information request 2 is a request for information that the task has ended abnormally, control is passed to step 52;
In step 52, the information requested by the task abnormality information request 2 is obtained from the task abnormality information 1.

〔Effect of the invention〕

As explained above, since the present invention analyzes the cause of abnormal termination of a task, it is possible to easily know the cause of abnormal termination of a task in the abort exit routine, and has the advantage that processing can be carried out in accordance with the cause.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIGS. 2 to 5 show the abnormality information reference means 4 and cause analysis means 5 in FIG.
9 Exception information acquisition means 6. It is a flowchart of the operation of the necessary information acquisition means 7. 1...Task abnormality information that stores the abnormal state of the task, 2...Request for task abnormality information requested by the aborter output routine, 3...Abnormal termination that stores the cause of the task's abnormal termination. Cause storage area, 4... Abnormality information reference means for referencing task abnormality information, 5... Cause analysis means for analyzing the cause of abnormal termination of a task, 6...
Exception information acquisition means for acquiring exception information when the cause of abnormal termination is the occurrence of an exception; 7. Necessary information acquisition means for acquiring information requested from the abort exit routine. Kaya 2 Rin Kaya, 5rgJ

Claims (1)

[Claims] Abnormality information reference means for referencing task abnormality information in which the abnormal state of the task is stored when a task abnormal termination information is requested by an abort exit routine that is called when a task in computer system task management terminates abnormally;
cause analysis means for analyzing the cause of the abnormal termination of a task from the information obtained by the abnormality information reference means; and when the cause analyzed by this cause analysis means is the occurrence of an exception, the exception information is transmitted to the abnormality information reference means; A task characterized in that it has an exception information acquisition means for acquiring from the obtained information, and a necessary information acquisition means for acquiring the information requested from the abort exit routine from the information obtained by the abnormality information reference means. Abnormal termination information acquisition method.