hi,
vmss file is VMware virtual machine snapshot file and contains all the necessary memory
dump that crash requires.
there is public available parse to read the format.
https://code.google.com/p/vmsnparser/
there is vmss2core (
https://labs.vmware.com/flings/vmss2core) to convert it to standard
core file.
and this patch just enables crash to read it directly.
rgds,
Dyno