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[Kristaps <1879969@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Description

When booting instance using flavor where Hugepages is activated with incorrect value get error:
Invalid memory page size '0' (HTTP 400) (Request-ID: req-338bf619-3a54-45c5-9c59-ad8c1d425e91)

Steps to reproduce

openstack flavor create hugepage  --ram 1024 --disk 10 --vcpus 1
openstack flavor set  hugepage --property hw:mem_page_size=2M
openstack instance create --flavor hugepage..
Invalid memory page size '0' (HTTP 400) (Request-ID: req-338bf619-3a54-45c5-9c59-ad8c1d425e91)

Expected result
Correct message  that hugepages is wrongly set to 2M instead 2MB

Actual result
Invalid memory page size '0' (HTTP 400) (Request-ID: req-338bf619-3a54-45c5-9c59-ad8c1d425e91

Environment
deployment tool : kolla-ansible 
https://github.com/openstack/kolla
https://github.com/openstack/kolla-ansible

Train + Centos8 + Libvirt/KVM + ZFS + Neutron/OVS

Logs
Output after trying boot instance:
Invalid memory page size '0' (HTTP 400) (Request-ID: req-338bf619-3a54-45c5-9c59-ad8c1d425e91)

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1879969

Title:
  confusing error message

Status in OpenStack Compute (nova):
  New

Bug description:
  Description

  When booting instance using flavor where Hugepages is activated with incorrect value get error:
  Invalid memory page size '0' (HTTP 400) (Request-ID: req-338bf619-3a54-45c5-9c59-ad8c1d425e91)

  Steps to reproduce

  openstack flavor create hugepage  --ram 1024 --disk 10 --vcpus 1
  openstack flavor set  hugepage --property hw:mem_page_size=2M
  openstack instance create --flavor hugepage..
  Invalid memory page size '0' (HTTP 400) (Request-ID: req-338bf619-3a54-45c5-9c59-ad8c1d425e91)

  Expected result
  Correct message  that hugepages is wrongly set to 2M instead 2MB

  Actual result
  Invalid memory page size '0' (HTTP 400) (Request-ID: req-338bf619-3a54-45c5-9c59-ad8c1d425e91

  Environment
  deployment tool : kolla-ansible 
  https://github.com/openstack/kolla
  https://github.com/openstack/kolla-ansible

  Train + Centos8 + Libvirt/KVM + ZFS + Neutron/OVS

  Logs
  Output after trying boot instance:
  Invalid memory page size '0' (HTTP 400) (Request-ID: req-338bf619-3a54-45c5-9c59-ad8c1d425e91)

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