Special Topics in Fault Diagnosis
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App. Res. of Comp. Printed Article
Vol. 41, 2024 No. 4
1015-1021

Lockup fault monitoring and diagnosis based on Sunway NMII

Gao Chen
He Sheng
Hang Xiaoqian
Wuxi Institute of Advanced Technology, Wuxi Jiangsu 214026, China
DOI: 10.19734/j.issn.1001-3695.2023.08.0395

Abstract

The non maskable inter-processor interrupt(NMII) of the domestic Sunway processor must be initiated by one of the other cores. Therefore, it is difficult to apply the general lockup fault monitoring algorithm of Linux. In severe cases, it will jeopardize the data processing in critical areas. This paper designed a lockup fault monitoring and diagnosis system for Sunway architecture to solve the above problem. It used a chain structure to send NMII requests, and combined timer event and kernel thread to check the lockup time stamp, realized the soft lockup and hard lockup monitoring of single core in the system. Based on the fault tolerance mechanism, it adopted a master-slave structure to monitor the state of all cores. When the master core failed, the system implemented fault tolerance measures and migrated the master core, realized the multi-core lockup monitoring in the system. It designed a task model based on NMII, and realized the diagnostic information output of the fault cores, extended the application scenarios of NMII. The test results show that the proposed algorithm can accurately detect the lockup fault and make real-time diagnosis under both low and high fault risk, and meet the reliability and real-time requirements of lockup fault monitoring and diagnosis of Sunway platform.

Foundation Support

科技部重点支持项目(GG20210701)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2023.08.0395
Publish at: Application Research of Computers Printed Article, Vol. 41, 2024 No. 4
Section: Special Topics in Fault Diagnosis
Pages: 1015-1021
Serial Number: 1001-3695(2024)04-008-1015-07

Publish History

[2023-12-11] Accepted Paper
[2024-04-05] Printed Article

Cite This Article

郜晨, 何升, 杭骁骞. 基于申威NMII的锁死故障监测与诊断 [J]. 计算机应用研究, 2024, 41 (4): 1015-1021. (Gao Chen, He Sheng, Hang Xiaoqian. Lockup fault monitoring and diagnosis based on Sunway NMII [J]. Application Research of Computers, 2024, 41 (4): 1015-1021. )

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  • Application Research of Computers Monthly Journal
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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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