JPH03269483A - Memory dump system of display processor - Google Patents

Abstract

PURPOSE:To enable efficient dump sampling by referring to the dump range setting table of the display processor at the time of dump detection and setting a dump range in a register, and dumping the contents of a display memory. CONSTITUTION:When the display processor 12 is shut down, the factor of the shutdown is detected and a dump range setting means 121 refers to the dump range table 122 to take out a dump range corresponding to the factor, and sets the dump range in the register between a processing unit 10 and the processor 12. The processing unit 10 dumps the contents of the display process memory 13 within this range. A system which limits this dump quantity is used to obtain the memory dump system of the display processor which samples the dump speedily and efficiently.

Description

Detailed Description of the Invention [Summary] Regarding a memory dump method of a display processor in an information processing device equipped with a display processor, there is provided a display processor that can efficiently collect memory by limiting the amount of memory provided in the display processor when the display processor goes down. In order to provide a memory dump method, a register is provided between the processing device and the display processor, and the display processor is equipped with a dump range table that stores the memory dump range for each display processor down factor. The range setting means is configured to take out a dump range corresponding to the detected factor from the dump range table and set it in the register when a down state is detected, and the processing device is configured to perform dumping for the range set in the register.

[Industrial Field of Application] The present invention relates to a memory dump method for a display processor in an information processing apparatus equipped with a display processor.

In recent years, systems that display multimedia have generally adopted a system that uses a processor for display. Hereinafter, this processor will be referred to as a display processor.

When this display processor goes down, it is necessary to quickly and accurately identify the cause. For this reason, it is important to have a function that dumps the contents of the display processor's memory when the display processor goes down.

[Conventional technology] FIG. 5 is a configuration diagram of a conventional example.

In the figure, 60 is a central processing unit (indicated by CPU);
1 is a main memory (MM), 62 is a display processor, 63 is a display processor memory, 64 is a bitmap memory, 6
5 is a display control circuit, 66 is a display device, 67 is a human power device such as a keyboard and mouse, and 68 is a disk device.

An information processing apparatus equipped with a display processor 62 as shown in FIG. 6 may be a workstation, a personal computer, or the like. The display processor 62 performs various processes for display using programs and data stored in the display processor memory 63, and these processes are performed by the central processing unit in accordance with instructions input from the input device 67. It is controlled by commands supplied from the CPU.

The processing results are stored in the bitmap memory 64 and displayed on the display device 66 under the control of the display control circuit 65.

In such a conventional information processing device, when the 5-display processor 62 goes down due to a failure such as a hardware failure or a software error.

An indication that the display processor is down is displayed on the display device 66, and messages such as hard errors, software errors, etc. are also displayed. However, with these messages, it is not possible to determine the cause of the error, such as under what circumstances and in what part.

Conventionally, in such cases, in order to discover the cause, the entire contents of the memory are dumped to the disk device 68, and by analyzing the dumped contents, the cause of the downtime can be detected. Countermeasures were taken.

[Problems to be Solved by the Invention] According to the above-described conventional memory dump method when a display processor goes down, the following problems occur because the memory capacity of current display processors is gradually increasing.

■Dump collection time becomes longer and the time required for recovery is extended.

■The number of dump media increases 7 For example, if the memory is 4MB
In this case, four flexible disks with the capacity of IMB are required to dump the entire file.

SUMMARY OF THE INVENTION An object of the present invention is to provide a memory dump method for a display processor that can efficiently collect memory by limiting the amount of memory provided in the display processor to be dumped when the display processor is down.

[Means to solve the problem] FIG. 1 is a diagram showing the principle configuration of the present invention.

In FIG. 1, 10 is a processing unit, 11 is a register, 1
2 is a display processor; 121 is a dump range setting means; 1
22 is a dump range table, and 13 is a display processor memory.

A register 11 is provided between the processing device 10 and the display processor 12 in which a dump range on the memory 13 of the display processor 12 is set. The 2-display processor 12 is provided with a dump range table 122 that stores memory address ranges (from the start address to the end address) for each display processor down factor. Then, when the display processor goes down and a down factor is detected, the dump range setting means 121 is driven to take out the dump range corresponding to the cause and set it in the register 11.

When the address range is set in register 11.

The contents are transmitted to the processing device 10. When the processing device 10 collects a dump, it collects the dump from the memory 13 only within the dump range indicated by the register 11.

In this way, it is no longer necessary to dump the entire contents of the memory, thereby reducing dump time, reducing effort, and making it easier to search for the cause.

[Example] Figure 2 is the second precept diagram of the example, Figure 3 is an example of a dump range table by cause, Figure 4 is a process flow diagram at the time of downtime, and Figure 5 is
The figure shows the precepts of the program.

In FIG. 2, 20 is a CPU, 21 is a bus 22 is a keyboard/mouse, 23 is a keyboard/mouse control circuit,
24 is a file device, 25 is a file device control circuit, 2
6 is a memory, 27 is a display processor, and 28 is a memory for the display processor.

29 is a register, 30 is a bitmap memory, 31 is a display control circuit, and 32 is a display.

The embodiment shown in FIG. 2 can be configured as a workstation or a personal computer.

According to the present invention, a cause-based dump range table 271 is provided in the display processor 27, and a register 29 in which an address range corresponding to a down factor is set is provided in the CPU 20.
and the display processor 27. The register 29 can be accessed from either the CPU 20 or the display processor 27.

FIG. 3 shows an example of a dump range table for each factor. As shown in the figure, for each error item such as memory hard error or path parity error as a down factor,
When each error occurs, the start address and end address of that area are shown in order to indicate in which area (part) of memory the program or data used in that program that could cause the hard error exists. combinations are stored.

In addition, such a factor-based address table can be created by either designing the process related to each error to be performed within a predetermined address range before programming, or by setting the program arbitrarily. It can be created later by finding addresses related to each error factor and setting them on the factor-specific address table.

Next, the processing flow when the system goes down will be explained with reference to FIG.

First, when an error occurs in the display processor 27 (see FIG. 2) and it goes down, the second display processor 27 detects the cause of the downtime (see FIG. 4 40). When a factor is detected, the 5 display processor 27 retrieves the dump range corresponding to the factor from the table (see Figure 3) and registers 2
Set the start address and end address in 9 (41)
.

On the other hand, when the CPU 20 starts the dump processing (
42), the start and end addresses set in the register 29 are detected, and data in that range is limited to the memory 2.
Dump collection is performed from 8 (43), and the collected data is obtained in the file device control circuit 25.

[Effects of the Invention] According to the present invention, the following effects can be achieved in dumping the display processor.

■ Dump collection time can be shortened by limiting the dump range for each dump factor.

■The amount of dumping is reduced, and the number of required media can also be reduced.

(5) Since the range for each down factor is maintained on the display processor side, there is no need to change the program on the CPU side in response to a change in the program on the display processor side.

Since dump information can be collected efficiently in this way, it is possible to accurately understand the cause of the downtime, and the reliability of Nostem can be improved.

[Brief explanation of drawings]

Figure 1 is a diagram showing the principle of the present invention, Figure 2 is a diagram showing the configuration of an embodiment, Figure 3 is an example of a dump range table by factor, Figure 4 is a process flow diagram at the time of a failure, and Figure 5 is a conventional example. FIG. 10 in Figure 1: Processing device 11: Register 12: Display processor 121: Dump range setting means 122: Dump range table 13: Memory of display processor

Claims (1)

[Claims] In an information processing device including a display processor, a register (1) is provided between the processing device (10) and the display processor (12).
1), the display processor (12) is provided with a dump range table (122) in which the dump range of memory for each down factor of the display processor is stored, and the dump range setting means (121) of the display processor (12) is provided.
) retrieves the dump range corresponding to the detected factor from the dump range table (122), sets it in the register (11), and sends it to the processing device (10).
A memory dump method for a display processor, characterized in that a dump is executed for a range set in the register (11).