Shanghai, China
June 24–26, 2019
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Tuesday, June 25 • 13:35 - 14:10
Practicing Linux Crash/Panic Issue on Production and Cloud Server: Using Kdump + Crash - Ben Shushu, Running Linux Kernel Group & Gavin Guo, Canonical

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With the rapidly development of Internet in China, more and more servers and cloud servers deployed Linux systems, like Alibaba, Tencent. In addition, with the development of the Internet of Things and industry 4.0, more and more product development chooses Linux system as the basic platform. Although the Linux kernel is robust enough, the system crash will happen frequently.
The topic of this speech is to introduce some experiences and of kdump + crash in Linux crash issues on our production development and deployment. We will introduce 6 experiments:
Lab1: Panic caused by a simple null pointer
Lab2: Access list head linked list that has been deleted
Lab3: a crash issue on device driver
Lab4: How to find the value of local variable and parameter of function through call trace and stack
Lab5: step by step analyze a complex deadlock crash issue
Lab6: Recovery function call-stack manually.

avatar for Ben shushu

Ben shushu

technical consultant, Running Linux Kernel Group
Benshushu is a technical consultant in China, he wrote a linux kernel analysis book on 2017 which is popular in China. On 2019, he published a new book about linux kernel and education.
avatar for Gavin Guo

Gavin Guo

Technical Lead - Sustaining Engineering, Canonical
Gavin Guo is a Linux kernel developer in the Ubuntu community. He is the speaker of Spectre v2 Internal in 2018 China L3C and KASan debugging in 2016 China Linux Kernel Conference. He is now working for Canonical in the Customer Success division. He is responsible for the kernel stability... Read More →

Tuesday June 25, 2019 13:35 - 14:10 CST