Test kexec functionality 
==========================

Please refer to Documentation/kdump.txt in kernel source tree for 
detailed information about kdump.

1) Test kexec -l  (booting a normal kernel using kexec reboot)
-------------------------------------------------------------- 
- Build first kernel with kexec support(CONFIG_KEXEC=y)

- Build kexec-tools (http://www.xmission.com/~ebiederm/files/kexec/kexec-tools-1.101.tar.gz)

- Reboot to first kernel with kexec support

- Use kexec-tools to load second kernel (nothing special about this kernel, 
  can be the same kernel as the first kernel)

  kexec -l <vmlinux> --args-linux --append="<root= >"

- Use kexec-tools to reboot the system

  kexec -e

- save boot/console log

- see if the system has booted fine 


2) Test kdump 
------------- 
- Build first kernel with kexec support

- Build kexec-tools with kdump patch (http://lse.sf.net/kdump/patches/kexec-tools-1.101-kdump.patch)

- Reboot to first kernel with kexec support with boot parameter 
  crashkernel=XM@YM to reserve RAM for dump capture kernel for example
  crashkernel=64M@16M

- Build dump capture kernel as mentioned in Documentation/kdump.txt

- Use kexec-tools to load dump capture kernel

- use a panic module to create kernel panic or use 
  `echo "c" > /proc/sysrq-trigger` to initiate kdump.

- save boot/console log

- once Dump capture kernel has booted save /proc/vmcore.