JPH0820979B2 - Data processing device - Google Patents

Description

DETAILED DESCRIPTION [Table of Contents] Outline Industrial field of application Conventional technology Problems to be solved by the invention Means for solving the problems (FIG. 1) Action Example (FIGS. 2 and 3) Fig.) Effect of the invention [Outline] With respect to a data processing device, an object is to load an input / output device and a damper that expands channel contents to a main memory, a processor, a main memory, an external input / output unit, In a data processing device having a channel, a dump program storage section, a system file, and a dump file are provided, and the dump program storage section stores a dump program for saving dump information in the main memory in the dump file. A load processor that loads the execution management unit program that controls the external I / O unit and the sub dump program that expands the channel contents in the main memory Gram, the system file stores the sub-dump program, the dump program stores dump information in main memory in a dump file, and the sub-dump program stores an external input / output unit or The channel information is stored in the main memory, and the dump program again stores the external input / output unit and channel information in the main memory in the dump file.

[Industrial applications]

The present invention relates to a data processing device using an external input / output device, a CPU, etc., and more particularly to a data processing device capable of collecting not only the memory of the data processing device but also data regarding a sub CPU etc. in the external input / output device at the same time. .

[Conventional technology]

The function of the terminal device is improving year by year. For example, in the financial terminal device, an external input / output that is connected to a line control unit that controls an external communication line, a depositing machine, a dispensing machine, a printer, etc. Section is provided. Moreover, in order to improve the processing capacity, the hardware has been channelized. Since each of these parts enables complex processing, the sub CPU
Is provided, and RAM is used instead of ROM for its maintainability.
Is used and much local memory is provided. Then, the programs to these sub CPUs are once loaded from an external file into its main memory at the IPL of the terminal device, and then downloaded to their respective RAMs.
Then, the program for the terminal device is loaded into the main memory.

When a terminal device with increased functions like this goes down due to a failure, etc., in order to investigate the cause, at the same time as the contents of the main memory at the time of the down, the contents of the external input / output unit, channel, etc. It is necessary to save dump information such as latches.

[Problems to be solved by the invention]

By the way, conventionally, the dump information of the external input / output unit, the channel, etc. is temporarily stored in the main memory by the operation system in the processor (CPU) of the terminal device, and then stored in the external dump file. Therefore, when a failure occurs in the operating system as well, the dump information at the time of the failure cannot be stored in the dump file, so the dump is limited to the main memory only, or the external I / O unit, channel, etc. The dump information part is battery-supported, and when a failure occurs, power off the terminal device once, then restart it and restart the terminal device to restore the normal state, then start the damper Then, the target external input / output section, programs such as channels, and dump information such as local memory and latches were saved.

However, such a method requires complicated operations such as restarting the operation system and storing the retained channel data in the disk. It is impossible to make them.

In addition, the data such as the time difference due to restarting and the minimum required channel for operation cannot be guaranteed as the situation at the time of failure. Moreover, there is also a problem that when a failure occurs, it is impossible to immediately collect necessary data collectively.

The object of the present invention is to provide not only dump information in the main memory but also dump information such as control programs for channels and external input / output units and work areas at the same point in time even when a failure occurs in the operating system. It is to provide a data processing device that can collect data collectively.

[Means for solving problems]

In order to achieve the above object, according to the present invention, as shown in FIG. 1, a damper program for loading the damper information written in the main memory 1 into an external dump file and an external system file 3 are stored. There is provided a dump program storage unit 2 in which an execution management unit program at the time of dumping and a load program for loading a dumper program for storing dump information such as an external input / output unit and a channel in the main memory 1 are written.

[Action]

For example, when a failure occurs and dumping is performed, first, the damper program in the dump program storage unit 2 operates,
The dump information stored in the main memory 1 is saved in the first dump unit 4-1 of the dump file 4.

Next, the load program in the dump program storage unit 2 operates to load the dump execution management unit program and the damper program into the main memory 1.

Under the control of the execution management unit program loaded in the main memory 1, the damper program is sequentially operated, and the damper information such as the memory contents of the external input / output unit and the channel is sequentially expanded in the main memory.

After the damper information of each unit is stored in the main memory in this way, the damper program of the dump program storage unit 2 operates again, and the damper information of the external input / output unit and the channels on the main memory 1 is dumped into the dump file. Second dump unit 4
-Save to -2.

If the dump file (disk) is executing a hard error or the like, or if external file output is specified in advance, the dump file is dumped to the floppy disk.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS.

FIG. 2 is a configuration diagram of an embodiment of the present invention, and FIG. 3 is an operation explanatory diagram of the present invention.

In the figure, the same symbols as in FIG. 1 indicate the same parts, and 10 is a terminal device, which is comprehensively controlled by a processor (CPU) 5. The terminal device 10 is provided with a line controller 6 for controlling connection with an external line, an external input / output unit 7 for controlling an externally connected input / output device, a channel 8 and the like. In the case of a financial terminal, for example, a depositing machine 12, a dispensing machine 13 ... Are connected as the input / output device, and a printer is also connected.

The line control unit 6, the external input / output unit 7, and the channel 8 are provided with a sub CPU (not shown), and a memory for storing programs and serving as a work area is provided.
In FIGS. 2 and 3, reference numerals 6-1 to 8-1 denote dump data parts necessary for dumping program information, work memory information, latch information and the like.

An external file 11 is composed of a magnetic disk, a floppy disk or the like, and has a system file 3 in which a program is stored and a dump file 4 in which dump information is saved.

In the system file 3, the line control section 6, the external input / output section 7, the dump data sections 6-1 and 7-, such as the channels 8 ...
A damper program a ... n for performing control for writing the contents 1, 8, 1 ... Into the main memory 1 and an execution manager program for managing these damper programs a ... n are stored. .

The dump file 4 is for saving the dump information stored in the main memory 1.

 Next, the operation of the present invention will be described with reference to FIG.

(1) A non-maskable interrupt (NMI) such as a dump switch (SW) or hardware error of the terminal device 10 or a jump-in (JUMP IN) due to a system down request from software, etc. The dumper program stored in the dump program storage unit 2 is activated, and the execution information at that time is stored in the main memory 1.

(2) The execution information, that is, the dump information thus stored in the main memory 1 is saved in the first dump unit 4-1 of the dump file 4 by the damper program.

(3) When this save is completed, the load program in the dump program storage section 2 operates to load the external input / output section and the execution management section program for saving the channel contents into the main memory 1 and activate the program.

(4) The execution management unit program loads the dampers a ... n corresponding to the external input / output unit, channels, etc. into the main memory 1 according to the information table it has, and starts them sequentially. For example, the execution instruction is given to the damper a, and when the execution result report is received, the execution instruction is given to the next damper.

(5) Each of the dampers a ... n has the contents of the target external input / output device 7 and the channel 8, that is, the dump data section 7-1 ... 8.
The contents of -1 are saved in the areas 1-a ... 1-n of the main memory 1 designated by the execution management program.

(6) When the execution management unit program receives the execution result reports of all the planned dampers a ... n, it passes the operation to the damper program in the dump program storage unit 2. This damper program dumps the data in the areas 1-a ... 1-n of the main memory 1 in which the contents of the dump data sections 7-1 ... 8-1 are expanded, as in (2) above. 4 to the second dump unit 4-2.

In this way, the contents of the main memory and the external input / output unit necessary for investigating the cause of the failure can be saved at the same time, so that the failure investigation can be performed accurately.

〔The invention's effect〕

According to the present invention, a sub-dump program for saving the contents of the external device or the channel is prepared, and the contents of the external device or the channel can be saved when the program is loaded into the main memory at the time of dumping. Since the information and these contents are saved at the same time, it is possible to grasp the cause of failure of the entire device in detail and perform a very accurate failure investigation.

Also, the dampers a ... n do not need to be aware of the files to be saved, so they do not need file access logic.

The storage logic of the main memory that has already been prepared can be used as it is for storage in an external file, that is, a dump file.

[Brief description of drawings]

 FIG. 1 is a diagram for explaining the principle of the present invention, FIG. 2 is a configuration diagram for an embodiment of the present invention, and FIG. 3 is a diagram for explaining the operation of the present invention. 1 ... Main memory 2 ... Dump program storage 3 ... System file 4 ... Dump file

Claims (1)

[Claims] 1. A data processing device comprising a processor, a main memory, an external input / output unit, and a channel, wherein a dump program storage unit, a system file, and a dump file are provided, and the dump program storage unit is provided. Stores a dump program that saves dump information in the main memory to a dump file, and a load program that loads an execution management unit program that controls an external input / output unit and a sub-dump program that expands channel contents in the main memory. The system file stores the sub-dump program, the dump program stores dump information in the main memory in a dump file, and the sub-dump program stores external I / O unit and channel information. Stored in the memory, and again in the main memory with the dump program. The data processing apparatus characterized by storing information of the parts input unit and the channel to the dump file.