Definition of thief - a person who steals another person's property, especially by stealth and without using force or threat of violence Definition of thief - a person who steals another person's property, especially by stealth and without using force or threat of violence
Kdump is the Linux kernel crash-dump mechanism. Oracle recommends that you enable the Kdump feature. In the event of a system crash, Kdump creates a memory image (vmcore) that can help in determining the cause of the crash.Enabling Kdump requires you to reserve a portion of system memory for exclusive use by Kdump.This memory is unavailable for other uses.n the event of a system crash, Kdump creates a memory image (vmcore) that can help in determining the cause of the crash. Enabling Kdump requires you to reserve a portion of system memory for exclusive use by Kdump. This memory is unavailable for other uses.
However, it needs /proc/vmcore which is the memory image of the currently running kernel. Also, reading the man page of makedumpfile, we also need 2 kernels: panicked kernel (crashed kernel) and capture kernel.nside the capture kernel, /proc/vmcore presents the crashed kernel as an ELF core image. Here's some RH doc with more details: https://access.redhat.com/knowledge/solutions/6038.