On Thu, Oct 19, 2017 at 10:52 PM, Dave Young <dyoung at redhat.com> wrote: > Now crashkernel=X will fail if there's not enough memory at low region > (below 896M) when trying to reserve large memory size. One can use > crashkernel=xM,high to reserve it at high region (>4G) but it is more > convinient to improve crashkernel=X to: > > - First try to reserve X below 896M (for being compatible with old > kexec-tools). > - If fails, try to reserve X below 4G (swiotlb need to stay below 4G). > - If fails, try to reserve X from MAXMEM top down. > > It's more transparent and user-friendly. ok with me. But looks like last time Vivek did not like this idea.
