JPH02244233A - information processing system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an information processing system.

[Conventional technology]

Conventionally, when diagnosing an information processing system, the diagnostic results are reported by an interrupt after saving detailed information in the main memory, or by data transfer to the maintenance processing device, and these two types of results are reported within the same system. There is no means for reporting diagnostic results.

[Problem to be solved by the invention]

In the conventional system described above, diagnosis is executed only from either the central processing unit or the maintenance processing unit, so the diagnosis route is limited, and furthermore, it is difficult to determine whether the central processing unit or the maintenance processing unit performs diagnosis activation. There is a problem in that if a failure occurs, the diagnosis itself cannot be executed.

[Means to solve the problem]

The present invention provides an information processing system configured by connecting a main storage device, a central processing unit, an information processing device having a micro-diagnosis function, and a maintenance processing device to a common bus, in which a first diagnostic command is sent from the maintenance processing device to a first means for activating a diagnosis for the information processing device; a second means for reporting a diagnosis result to the maintenance processing device; and a second means for activating the diagnosis for the information processing device in response to a second diagnosis command from the central processing unit. and a fourth means for storing the diagnosis result in the main storage device and then reporting it by interrupting the central processing unit, and transmitting the diagnosis result to the central processing unit when starting the diagnosis from the maintenance processing unit. This configuration does not report diagnostic results using interrupts.

〔Example〕

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

FIG. 1 is a configuration diagram showing an embodiment of the present invention, in which a central processing unit 1, an information processing unit (I10 processor) 2, a maintenance processing unit 3, a memory controller 4, and a main storage unit 5 are connected to a common bus 10. has been done. A terminal display 6 is connected to the maintenance processing device 3 as a man-machine interface. The I10 processor 2 is connected to the I10 bus 11 and has microdiagnostic functionality. Furthermore, the maintenance processing device 3 has a function of performing system startup control and console control.

In this configuration, diagnosis is performed on the I10 processor 2 and the common bus 10 through the first diagnostic route 1 from the maintenance processing device 3.
00 and central processing unit 1 to second diagnostic route 101-2
Depending on the type of route, it is possible to execute the microdiagnosis result of the I10 processor 2 started by the maintenance processing device 3 in the route 100 and the central processing unit 1 in the route 101. Data transfer by command and I10 on route 101
It is reported by an interrupt to the central processing unit 1 by the processor 2.

FIG. 2 shows the processing flow when the central processing unit 1 executes diagnosis on the I10 processor 2, and FIG. 3 shows the processing flow when the maintenance processing unit 3 executes the diagnosis on the I10 processor 2. show. Referring to FIG. 1, FIG. 2, and FIG. The diagnosis is started by sending a diagnosis command to the I10 processor 2 (S2). Next, check if there are any errors when starting S3.
), when an error occurs, error processing is performed as a startup error (S5). If the startup is successful, microdiagnosis is executed next (S4), and when the diagnosis is finished, a completion report is made in the form of an interrupt (S6).
0 to judge the diagnostic result returned from processor 2 (S7)
, When an error occurs, error processing is performed based on detailed information in the main storage device 6 (S8). In addition, in the case of executing diagnosis from the maintenance processing device 3, after setting the diagnosis information (S9)
, another diagnostic command starts, executes, and reports the results of microdiagnosis (SIO, Sl 1.S, 12).
, the diagnosis result is determined based on the report result (313), and in the case of an error, the result is processed using the returned information (S14). Note that the diagnosis performed by the maintenance processing device 3 includes a hardware loopback test, a ROM read test, a common bus pseudo failure test, and the like. Furthermore, the diagnosis performed from the central processing unit 1 includes a microdiagnosis 1 interrupt error test and the like.

〔Effect of the invention〕

As explained above, according to the present invention, an information processing device having a micro-diagnosis function is provided with two types of diagnosis result reporting means, and diagnosis can be performed from both the central processing unit and the maintenance processing unit. It is possible to perform various types of diagnosis and detect more failures, and even when a failure occurs in either the central processing unit or the maintenance processing unit, diagnosis can be executed.

[Brief explanation of drawings]

FIG. 1, FIG. 2, and FIG. 3 are block diagrams showing one embodiment and diagrams showing a diagnostic processing procedure. 1...Central processing unit, 2...Information processing unit (I10
3...Maintenance processing device, 4...Memory controller, 5...Main storage device, 6...Terminal display, 10...Common bus, 11...I
/O/<su, 100...first diagnosis route, 101.
...Second diagnostic route.

Claims (1)

[Claims] In an information processing system configured by connecting a main storage device, a central processing unit, an information processing device having a micro-diagnosis function, and a maintenance processing device to a common bus, the information processing device receives a first diagnosis command from the maintenance processing device. a first means for activating a diagnosis for the maintenance processor; a second means for reporting a diagnosis result to the maintenance processor;
a third means for activating a diagnosis on the information processing device by a diagnostic command; and a fourth means for storing the diagnosis result in the main storage device and then reporting it by interrupting the central processing unit; An information processing system characterized in that when a diagnosis is activated from a processing unit, a diagnosis result is not reported by interrupting the central processing unit.