JPH03278246A - Processing method for collecting abnormal information - Google Patents

Abstract

PURPOSE:To reduce the number of data for a dump list to be outputted at the abnormal end of a program by compressing plural identical data outputted continuously with a data descriptor. CONSTITUTION:A program in executing is detected by an abnormality detecting means 3 and data indicating information relating to all storage areas constituting the executing program in a main storage device 1 are outputted as a dump list. At that time, a CPU 2 including a data compressing means 4 compresses data. In this case, plural identical data outputted continuously out of said information are compressed in accordance with the succeeding data descriptor 20. Namely, said plural identical data are compressed to a data identifier 21 indicating compressed data, the start address 22 and end address 23 of the plural identical data and data 24 constituted of one of the plural identical data.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for collecting and processing abnormality information when a program in a computer system terminates abnormally.

[Conventional technology]

Conventionally, this type of abnormality information collection processing method outputs all information data related to all storage areas constituting a program being executed stored in a main storage device to an external storage device as a dump list.

[Problem to be solved by the invention]

In the conventional abnormality information collection processing method described above, it is necessary to reserve in advance a dump file area in an external storage device that can store all the information data regarding all the storage areas that make up the program being executed. With the increase, there is a drawback that the usable storage capacity of the external storage device becomes insufficient and the processing speed decreases due to the increase in the amount of data transfer.

An object of the present invention is to provide an abnormality information collection processing method that can reduce the number of data in a dump list that is output when a program terminates abnormally.

[Means to solve the problem]

In the abnormality information collection processing method of the present invention, among the data indicating the information, a plurality of consecutive identical data is a data identifier indicating that the data is compressed data.

It is characterized in that the data is compressed into data consisting of a start address and an end address of the plurality of identical data, and one of the plurality of identical data, and is output to the external storage device.

[Effect]

A plurality of pieces of the same data that are output continuously are composed of a data identifier indicating that it is compressed data, a start address and an end address of the plurality of pieces of the same data, and one piece of the plurality of pieces of the same data. Since the data is compressed into the same data, the number of consecutive dump lists of the same data is greatly reduced.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of a computer system showing an embodiment of the abnormality information collection and processing method of the present invention, FIGS. 2 and 3 are diagrams showing data descriptors, and FIG. 4.

FIG. 5 is a flowchart illustrating the operation of the data compression means 2 shown in FIG.

The computer system 10 shown in FIG. 3 and a central processing bag @ (hereinafter referred to as CPU) 2 that includes a data compression means 4 that performs a data compression operation when outputting data indicating the information stored in the main storage device 1 as a dump list; C
It has a data output means 5 for outputting data sent from the PU 2 to a magnetic disk device 11 connected to the computer system 10 as an external storage device.

Next, a method of compressing data without indicating the information by the data compression means 4 will be explained with reference to the data descriptors shown in FIGS. 2 and 3.

The data descriptor 20 shown in FIG.
This shows a method for compressing multiple pieces of consecutive identical data. In other words, these consecutive pieces of identical data have data identifiers 21 . The start address 22 and end address 23 . of the plurality of identical data. Data 24 composed of one piece of the same data
compressed into

Among the data indicating the information, the data other than the consecutive plurality of identical data are consecutive different data, so the consecutive plurality of different data is written according to the data descriptor 30 shown in FIG. A data identifier 31 indicating that it is uncompressed data, a start address 32 and an end address 33 of this different data. It is converted into a data group 34 made up of all of this plurality of consecutive different data.

Next, FIG. 4 shows the operation of the data compression means 4.

This will be explained using the flowchart shown in FIG.

When the abnormality detecting means 3 detects that a program abnormality has occurred during execution of the program, the CPU 2 displays on a terminal device (not shown) that the program abnormality has occurred. Thereafter, when a request is sent from the terminal device to output data indicating information on all memories constituting the program being executed as a dump list to the magnetic disk unit @11, the CPU 2 activates the data compression means 4.

The data compression means 4 first selects a program instruction storage area from among all storage areas (program instruction storage area, data storage area, register storage area) constituting the program being executed (Step 40); The first two pieces of data in this storage area (the number of bits per piece of data is 1 byte) are read from the main memory 1 (step 42). Step 4: Determine whether the two retrieved data are the same or not.
3) If they are the same, the next data is read from the main memory 1 (step 44), and it is determined whether the data is the same as the previously read data (step 46).

If the result of the determination in step 46 indicates that they are the same, then step 44 and step 4
6 is repeated.

If the result of the determination in step 46 indicates that they are not the same, the data descriptor 20 shown in FIG.
Compressed data is created. That is, a plurality of pieces of the same data that have been successively read from the first data have data identifiers 21 . Starting address (
address of first data)22. End address (address of the same data read last) 23. The same data is compressed into compressed data composed of one piece of data (1 byte) of data 24 (step 47).

On the other hand, if the result of the determination in step 43 indicates that the first data and the second data are not the same, the data compression means 4 converts the next data to the next data, as shown in step 50 of the flowchart shown in FIG. Read from main memory bag @1,
It is determined whether the read data is the same as the second data (step 52). If the result of the determination in step 52 indicates that they are not the same, the operations of step 50 and step 52 are repeated unless reading of all data in this storage area is completed in the middle (step 51). Uncompressed data is created in accordance with the data descriptor 30 shown in FIG. 3 for data other than the data for which the determination result in step 52 is the same. That is, a plurality of different pieces of data successively read from the first data have data identifiers 31 . Start address (first data address) 32. The data is converted into uncompressed data consisting of an end address (address of different data read first) 33 and a data group 34 of different data read successively (step 53).

After the creation of compressed data in step 47 of the flowchart shown in FIG. 4 is completed, the operations of steps 50 to 53 of the flowchart shown in FIG.
After the creation of uncompressed data in step 53 of the flowchart shown in the figure is completed, the operations of steps 44 to 47 of the flowchart shown in FIG. 4 are performed. Further, when it is confirmed that reading of all data has been completed in the operation of step 45 of the flowchart shown in FIG. After compressed data is created in the same manner as in step 48 (step 48), the next storage area (data storage storage area) is selected (step 40), and all of the above operations are performed.

The same applies when it is confirmed in the operation of step 51 of the flowchart shown in FIG. 5 that reading of all data has been completed.

The above operations are continued until reading of all data in the register storage area is completed (step 41).

When the above operations are completed by the data compression means 4, the CPLI 2 outputs the created compressed data and uncompressed data to the magnetic disk device 11 via the data output means 5.

In the embodiment shown in FIG. 1, when different data are successively read, these data are converted into uncompressed data according to the data descriptor 30 shown in FIG. 3, but there is no particular need for conversion. Instead, different data that are successively read may be output to the magnetic disk device 11 as they are. Further, although the number of bits of data is 1 byte, data of 2 bytes, 4 bytes, etc. may be compressed.

〔Effect of the invention〕

As explained above, the present invention compresses a plurality of consecutive identical pieces of data into compressed data among the data indicating information regarding all the storage areas constituting the running program stored in the main storage device. This has the effect of reducing the number of data output as a tamp list when a program terminates abnormally.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a computer system showing an embodiment of the abnormality information collection processing method of the present invention, FIGS. 2 and 3 are diagrams showing data descriptors, and FIG. 4. FIG. 5 is a flowchart illustrating the operation of the data compression means 2 shown in FIG. 1... Main storage device, 0 2... CPU. 3... Abnormality detection means, 4... Data compression means, 5... Data output means, 10... Computer system, 11... Magnetic disk device, 20. 30... Data descriptor, 21 .31...Data descriptor, 22.32...Start address. 23.33...End address, 24...Data, 34...Data group. Figure Figure Figure

Claims (1)

[Scope of Claims] 1. An abnormality information collection processing method that outputs data indicating information regarding all storage areas constituting a program being executed stored in a main storage device as a dump list to an external storage device, comprising: Among the data indicating that a plurality of consecutive identical pieces of data are compressed data, a data identifier indicating that the same data is compressed data,
An abnormality information collection process characterized by compressing data into data consisting of a start address and an end address of the plurality of identical data, and one of the plurality of identical data, and outputting the compressed data to the external storage device. Method.