"NTT Data and VA Linux of Japan have released an open source crash dumping tool for Linux kernels. Mini Kernel Dump is a Linux-based mini-kernel that runs underneath Linux kernels on IA-32 systems (other architectures pending), providing a stable environment for capturing and dumping crash dump data.
"According to NTT and VA, determining the cause of faults on Linux systems has been a weakness, because existing tools such as LKCD, netdump, and diskdump run on the very kernel they are monitoring. They also require device drivers..."