[Bug 1612424] [NEW] Ubuntu14.04.05 To get memory hotplug working in PowerKVM, powerpc-utils needs update to version 1.3.0

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Public bug reported:

== Comment: #0 - NAGESWARA R. SASTRY - 2016-07-25 01:56:38 ==
---Problem Description---
For memory hot plug to work properly, powerpc-utils needs to be updated to at least 1.3.0 version
 
---uname output---
Linux ubuntu1404 4.4.0-28-generic #47~14.04.1-Ubuntu SMP Fri Jun 24 16:30:24 UTC 2016 ppc64le ppc64le ppc64le GNU/Linux

 
---Steps to Reproduce---
 Existing version of powerpc-utils is 1.2.18+r1.1.3-24ubuntu1              this has to be updated to at least 1.3.0 version.
 
Userspace rpm: powerpc-utils                      1.2.18+r1.1.3-24ubuntu1              ppc64el  

== Comment: #4 - NAGESWARA R. SASTRY - 2016-07-27 01:33:19 ==
(In reply to comment #3)
> 
> Can you, or someone expand on the description of memory hotplug not working.
> What exactly is not working?

Because of the QEMU changes (ddw related bug fix), memory hot plug
stopped working. 'Not working' in the sense when a user hot plug memory
from Host->Guest with powerpc-utils less than 1.3.0 version, hot plug
action will not full fill. 'drmgr' fails to identify free LMBs.

To resolve the above issue, the following patches are required to be in
powerpc-utils

>From https://bugzilla.linux.ibm.com/show_bug.cgi?id=143794#c4
...
The following 2 commits of powerpc-utils are required for memory hotplug to work:

f4006893d84: drmgr: Correct return code from set_mem_scn_state()
4f515ea179c: drmgr: Correct LMB counting when discovering LMBs

These are part of powerpc-utils-1.3.0 which is the next release after
1.2.27.

We should now get at least 1.3.0 version in all the supported distros.
...

Hope the above information helps.
Thanks!!

** Affects: powerpc-utils (Ubuntu)
     Importance: Undecided
     Assignee: Taco Screen team (taco-screen-team)
         Status: New


** Tags: architecture-ppc64le bugnameltc-144064 severity-critical targetmilestone-inin14045

** Tags added: architecture-ppc64le bugnameltc-144064 severity-critical
targetmilestone-inin14045

** Changed in: ubuntu
     Assignee: (unassigned) => Taco Screen team (taco-screen-team)

** Package changed: ubuntu => powerpc-utils (Ubuntu)

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https://bugs.launchpad.net/bugs/1612424

Title:
  Ubuntu14.04.05 To get memory hotplug working in PowerKVM, powerpc-
  utils needs update to version 1.3.0

Status in powerpc-utils package in Ubuntu:
  New

Bug description:
  == Comment: #0 - NAGESWARA R. SASTRY - 2016-07-25 01:56:38 ==
  ---Problem Description---
  For memory hot plug to work properly, powerpc-utils needs to be updated to at least 1.3.0 version
   
  ---uname output---
  Linux ubuntu1404 4.4.0-28-generic #47~14.04.1-Ubuntu SMP Fri Jun 24 16:30:24 UTC 2016 ppc64le ppc64le ppc64le GNU/Linux

   
  ---Steps to Reproduce---
   Existing version of powerpc-utils is 1.2.18+r1.1.3-24ubuntu1              this has to be updated to at least 1.3.0 version.
   
  Userspace rpm: powerpc-utils                      1.2.18+r1.1.3-24ubuntu1              ppc64el  

  == Comment: #4 - NAGESWARA R. SASTRY - 2016-07-27 01:33:19 ==
  (In reply to comment #3)
  > 
  > Can you, or someone expand on the description of memory hotplug not working.
  > What exactly is not working?

  Because of the QEMU changes (ddw related bug fix), memory hot plug
  stopped working. 'Not working' in the sense when a user hot plug
  memory from Host->Guest with powerpc-utils less than 1.3.0 version,
  hot plug action will not full fill. 'drmgr' fails to identify free
  LMBs.

  To resolve the above issue, the following patches are required to be
  in powerpc-utils

  From https://bugzilla.linux.ibm.com/show_bug.cgi?id=143794#c4
  ...
  The following 2 commits of powerpc-utils are required for memory hotplug to work:

  f4006893d84: drmgr: Correct return code from set_mem_scn_state()
  4f515ea179c: drmgr: Correct LMB counting when discovering LMBs

  These are part of powerpc-utils-1.3.0 which is the next release after
  1.2.27.

  We should now get at least 1.3.0 version in all the supported distros.
  ...

  Hope the above information helps.
  Thanks!!

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