[PATCH] x86, kdump: crashkernel=X try to reserve below 896M first, then try below 4G, then MAXMEM

[Dave Young]

> Again, for distribution, when new kernel is added, new kernel will all
> have ",high"
> and new kexec-tools get installed.
> 
> Even we want to extend crashkernel=XM, then i would like to have
> it identical to crashkernel=XM,high instead.

My points: I can accept the approach of extending crashkernel=XM to
use high mem firstly if we could remove the extra 72M in low mem, but
apparently it's not doable now. So I would vote for Chao's patch.

Also newer kernel use more complex ",high" then older kernel looks not good.

Thanks
Dave