On my current setup this is using the following incantion, note that it does not specify the location, can you see if that helps:
crashkernel=384M-2G:64M,2G-:128M
On my current setup this is using the following incantion, note that it does not specify the location, can you see if that helps:
crashkernel =384M-2G: 64M,2G- :128M