ndctl failed to reconfigure namespace: Invalid argument

[samanta-amit]

ndctl create-namespace isnt working on Linux kernel 4.15

sudo ndctl create-namespace --verbose -f -e namespace0.0 --mode=devdax --align=2M

The error I am getting:

setup_namespace:402: dax0.0: set_align failed: Invalid argument
failed to reconfigure namespace: Invalid argument

{
  "dev":"namespace0.0",
  "mode":"fsdax",
  "map":"mem",
  "size":"8.00 GiB (8.59 GB)",
  "sector_size":512,
  "blockdev":"pmem0",
  "numa_node":0
}