JPH0264744A - Fault analyzing information acquiring system - Google Patents

Abstract

PURPOSE:To minimize a fault analyzing information quantity by providing a control table and a control table registering means on a memory and incorporating a means to write analyzing information and an information referring means with a fault analyzing processing means. CONSTITUTION:A memory provides a program 2, which analyzes a fault generated in executing 'A' in a program 1 based on an information group 5 necessary for analyzing and registers it in a control table 3, and a route table 4 to register a pointer to the table 3. Information on the memory is written as the memory dump information to a secondary medium 6, and by an information edition output program 7, a memory dump information editing list 10 incorporating the analized result of a list X individual analyzing program to convert a memory content into a character is outputted by a default analyzing program 8 or an individual analyzing program 9 (program A). Since the information edition output program 7 takes the analyzing information necessary for editing and outputting from the memory dump information itself, an information quantity can be minimized and the effect on changing the program can be reduced.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention performs so-called dumping in which information in memory is written to a magnetic tape or the like in a computer system.
The present invention relates to a failure analysis information acquisition method for acquiring failure analysis information by editing and outputting memory information dumped to the secondary medium at the time of failure.

〔overview〕

The present invention provides a fault analysis information acquisition method that writes fault information on memory when a fault occurs to a secondary medium, edits and outputs it, and performs fault analysis processing. By dumping information including the management table information to a secondary medium, performing the necessary failure analysis by referring to the information in the management table, and editing and outputting it, the amount of failure analysis information to be edited and output can be minimized and the failure analysis can be carried out. This reduces the impact of changes in information.

[Conventional Technique 1 Failure] Conventionally, this type of failure analysis information acquisition method has been based on an information source other than the memory information dumped by a program that edits and outputs the dump information dumped to a secondary medium, such as an information source to the program. The method was to obtain it from input control statements or input files.

An example of this conventional method is shown in FIG.

That is, program 8 executes program 1 (in this example, program A) on memory and creates failure analysis information, and a group of information necessary for failure analysis of the program, in this example, the information necessary for failure analysis of program A. Information group 5
The information including the failure analysis information on this memory is written onto the secondary medium 6 as memory dump information. The memory dump information dumped on the secondary medium was configured to be edited by a memory dump information editing/output program 7 based on the failure analysis information 11, and outputted as a memory dump information editing/output list 10.

[Problems to be Solved by the Invention] However, in the conventional fault information acquisition method shown in FIG.
) and failure analysis information 11 used by a program that edits and outputs memory dump information exist independently.

Therefore, when changing the failure analysis information due to a program version upgrade, etc., not only the program 1 that creates the failure information in memory, but also the 'failure analysis information 11 used by the program that edits and outputs the memory dump information. There are shortcomings that must be changed.

Furthermore, even if there is no version upgrade, the information required for failure analysis changes depending on the execution status of the program, so with conventional methods, the execution status cannot be known.
In order to obtain the information necessary for failure analysis, it is necessary to always edit and output the maximum amount of failure analysis information, and it takes a lot of time and waste to edit and output the memory dump information dumped on the secondary medium. There are many drawbacks.

The present invention solves the above-mentioned drawbacks, and makes it possible to minimize the amount of failure analysis information to be edited and output.
Another object of the present invention is to provide a fault analysis information acquisition method that can reduce the influence of changes in fault analysis information due to program changes and the like.

[Means for solving problems]

The present invention provides a failure analysis information acquisition method that includes a failure analysis processing means that writes failure information on memory when a failure occurs to a secondary medium, analyzes the information on the memory, performs failure analysis processing, and edits and outputs the information. A management table for storing failure analysis information and a management table registration means for registering failure analysis information in this management table each time a failure occurs are provided on the memory, and the failure analysis processing means stores information on a secondary medium. The present invention is characterized in that it includes means for writing information including failure analysis information on the management table, and means for referencing the failure analysis information on the management table.

[Effect]

When a failure occurs during execution of a program, the failure is analyzed based on the information necessary for failure analysis of the program, and each failure analysis information is registered in a management table.

This fault analysis information is dumped onto a secondary medium, and a memory dump information editing/output program edits the memory contents including the fault analysis information registered in the management table and outputs it as a list of fault analysis information.

〔Example〕

The present invention will be described in detail below with reference to the drawings.

FIG. 1 is a diagram illustrating the configuration of a failure analysis information acquisition method according to an embodiment of the present invention.

In Fig. 1, the upper part shows the memory configuration, and shows a program 1 including programs A and B, and a group of information necessary to analyze a failure that occurred during the execution of program A in program 1, for example. The management table registration program 2 is provided with a management table registration program 2 for registering failure analysis information analyzed based on 5 in the management table 3, and a route table 4 for registering a pointer to the management table 3.

The information on this memory is written to the secondary medium 6 as memory dump information, and is written by the memory dump information editing output program 7, by the default analysis program 8 or by the individual analysis program 9 (in this case, the failure analysis program for program A), etc. This configuration edits and outputs a memory dump information editing output list 10 that includes a list obtained by converting memory contents from numerical values to characters and analysis results of an individual analysis program.

In the fault analysis information acquisition method shown in Fig. 1, the program 1 itself that creates the information necessary for analysis when a fault occurs calls the management table registration program 2 and stores the fault analysis information in memory. This feature allows the memory dump information editing and output program to obtain failure analysis information necessary when editing and outputting the memory dumped contents from the memory dump information itself.

Next, the operation of this embodiment will be explained with reference to FIGS. 2 to 4. FIG. 2 is a diagram showing the structure of the management table,
FIG. 3 shows an operation flowchart of the management table registration program, and FIG. 4 shows an operation flowchart of the memory dump information editing and output program.

(1) Program A provides failure analysis information related to its own processing, such as information indicating the execution status of program A, and version number of program A, in case a failure occurs while executing processing for the program. The management table registration program 2 is called in order to register the information, load address, etc. in the management table 3.

(2) Management table registration program 2 is program A
Each time it is called, a memory area for the management table 3 is secured (step S1), and the value of the input parameter is set in the management table 3 (step S2). Then, the management table 3 that has already been created is traced from the route table 4, and the created management table 3 is connected to the end of the queue of management tables 3 indicated by the pointer to the management table (steps 83 to S6). Then, the program returns to the calling program A.

As shown in Figure 2, the parameters registered in this management table include the identifier of the failure analysis information, the necessity of default processing, the start address of the failure analysis information, the length of the failure analysis information,
This information includes the necessity of individual processing, the name of the individual analysis program, and a pointer to the next management table, and these pieces of information are registered in the management table in sequence.

(3) The call to the management table registration program 2 by program A corresponds to the processing status of program A.
Perform each time it is necessary for failure analysis.

However, depending on how the failure analysis information is specified as an input parameter at the time of a call, the following two types of information can be registered.

(a) Even if the information value changes, if fault analysis is possible as long as the latest value is known, call by specifying the same fault identifier.

(b) If failure analysis is impossible without knowing the history of how information values have changed, the value of the failure information identifier is changed each time the call is made.

(4) If a failure occurs while program A is running, the failure analysis information is registered in the management table 3, so when the information in memory is written to the secondary medium by dumping, program A The failure analysis information and management table 3 are also written onto the secondary medium 6.

(5) The memory dump information on the secondary medium 6 is edited and output as fault analysis information by the memory dump information editing and output program through the process shown in FIG. That is,
Depending on the contents of the management table 3, a default analysis is performed in which numerical values of memory information are simply converted into characters and edited and outputted, and an individual analysis is performed in which failure analysis processing unique to each program is performed.

The processing will be explained in order.

Read memory dump information from the secondary medium 6 (step 51
1) Obtain failure analysis information by tracing the route table 4 to the management table 3 (step 12).

Then, in step 513, it is determined whether or not there is failure analysis information.
), if there is no failure analysis information, the process ends; if there is failure analysis information, it is determined whether default processing is necessary for the failure analysis information (step 514). Default failure analysis program 8 if default processing is required
is called (step 515). The default failure analysis program 8 converts the memory contents of the specified number of bytes from the specified address from numerical values to characters, and edits and outputs the converted data (step 521).

Also, it is determined whether individual processing is necessary for the failure analysis information (step 516), and if it is determined that it is necessary, the individual analysis program 9 (in this case, the failure analysis program for program A) is called (step 517). . The individual analysis program 9 edits and outputs program-specific failure analysis information from the memory contents of the specified number of bytes starting from the specified address (step 531).

In this way, the steps shown in (1) to (5) can be used to obtain the bridge collection output result of the information necessary for failure analysis, so only the minimum necessary failure analysis information is required, and Even if there is a change in the information, it is only necessary to modify program A and the failure analysis program for program A, and the management table registration program 2, management table 3, memory dump information editing output program 7, default analysis program 8, and other The necessary information can be modified without affecting the program, for example, program B.

〔Effect of the invention〕

As explained above, in the present invention, the program that creates the information necessary for failure analysis stores the failure analysis information that it creates itself in memory, so the memory dump information editing output program It is possible to edit and output based on existing failure analysis information.

Therefore, it is possible to minimize l of the fault analysis information to be edited and output, and to minimize the influence when changing the fault analysis information.

[Brief explanation of the drawing]

FIG. 1 is a diagram illustrating the configuration of an embodiment of the present invention. FIG. 2 is a diagram illustrating the structure of the embodiment management table. FIG. 3 is an operation flowchart of the embodiment management table registration program. FIG. 4 is an operation flowchart of the tube memory dump information editing output program according to the embodiment. FIG. 5 is a diagram illustrating the configuration of a conventional example. DESCRIPTION OF SYMBOLS 1...Program, 2...Management table registration program, 3...Management table notebook 4...Route table, 5...Information group necessary for failure analysis, 6...Secondary medium, 7.・・Memory dump information editing output program, death・
- Default analysis program, 9... Individual analysis program, 10... Memory dump information editing output list.

Claims (1)

[Claims] 1. Fault analysis information provided with a fault analysis processing means that writes fault information on memory when a fault occurs to a secondary medium, analyzes the information on memory, performs fault analysis processing, and edits and outputs it. In the acquisition method, a management table for storing failure analysis information is provided in memory, and a management table registration means for registering failure analysis information in this management table every time a failure occurs, and the failure analysis processing means comprises: 2 A failure analysis information acquisition method comprising: means for writing information including failure analysis information on a management table onto a next medium; and means for referencing failure analysis information on the management table.