Examine Problems With Kernel Threads
Explore techniques to identify and analyze problems with kernel threads during Linux core dump investigations. Learn to load core dumps, interpret exception stack traces, disassemble functions, and inspect memory to pinpoint issues such as null pointer exceptions. This lesson equips you with hands-on skills to debug kernel-level faults using the crash tool.
Linux kernel uses threads to perform various tasks in the background and also to service user level multi-threading. In this lesson, we’ll learn how to identify problems with kernel threads.
Loading the core dump
We’ll start by loading the core dump:
crash dump.202206251922 ../KSym/vmlinux-5.10.0-10-amd64
Checking the log
We follow the suggestion to check the log for details, and at the end, we find the ...