[Bug 1851290] [NEW] Add backport for (s390x) endian fixes to ceph nautilus

[Frank Heimes]

Public bug reported:

Since 'luminous' ceph (and in particular ceph-mon) fails on the s390x
big endian platform.

A bug for that was already raised in 2017 - LP 1713032:
"[luminous] ceph-mon crashes when it is elected leader (s390x)"
https://bugs.launchpad.net/cloud-archive/+bug/1713032

It was a longer running task to get things fixed for s390x.
And finally uweigand (many thx Uli) got everything accepted upstream:
"Fix big-endian handling #30079" - https://github.com/ceph/ceph/pull/30079

In parallel to that there is also a backport of these s390x endianess fixes for ceph 'nautilus':
"nautilus: backport endian fixes #30697" - https://github.com/ceph/ceph/pull/30697

This ticket is to get this upstream checked, tested and partly approved
'nautilus' backport integrated into the UCA ceph 'nautilus'.

** Affects: ubuntu-z-systems
     Importance: Undecided
         Status: New

** Affects: ceph (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: s390x

** Also affects: ubuntu-z-systems
   Importance: Undecided
       Status: New

** Summary changed:

- Add backport for (s390x) endian fixes to nautilus
+ Add backport for (s390x) endian fixes to ceph nautilus

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https://bugs.launchpad.net/bugs/1851290

Title:
  Add backport for (s390x) endian fixes to ceph nautilus

Status in Ubuntu on IBM z Systems:
  New
Status in ceph package in Ubuntu:
  New

Bug description:
  Since 'luminous' ceph (and in particular ceph-mon) fails on the s390x
  big endian platform.

  A bug for that was already raised in 2017 - LP 1713032:
  "[luminous] ceph-mon crashes when it is elected leader (s390x)"
  https://bugs.launchpad.net/cloud-archive/+bug/1713032

  It was a longer running task to get things fixed for s390x.
  And finally uweigand (many thx Uli) got everything accepted upstream:
  "Fix big-endian handling #30079" - https://github.com/ceph/ceph/pull/30079

  In parallel to that there is also a backport of these s390x endianess fixes for ceph 'nautilus':
  "nautilus: backport endian fixes #30697" - https://github.com/ceph/ceph/pull/30697

  This ticket is to get this upstream checked, tested and partly
  approved 'nautilus' backport integrated into the UCA ceph 'nautilus'.

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