hugetlb.87d848 hugepagesz= specifies an unsupported page size <size>
Explanation
The hugepagesz= kernel parameter specifies a huge page size
that is not supported.
User response
Specify "1M" for 1 MB huge pages. These are supported as of z10.
Specify "2G" for 2 GB huge pages. These are supported as of zEC12
and zBC12 machines.