Linux Crash Dump

How to use kdump for Linux Kernel Crash Analysis

by Karthikeyan Sadhasivam on May 5, 2014

Kdump is an utility used to capture the system core dump in the event of system crashes.

These captured core dumps can be used later to analyze the exact cause of the system failure and implement the necessary fix to prevent the crashes in future.

Kdump reserves a small portion of the memory for the secondary kernel called crashkernel.

This secondary or crash kernel is used the capture the core dump image whenever the system crashes.
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