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[Bug 1441856] Re: ISST-LTE:Ubuntu15.04: After migration of Ubuntu15.04 lpar, RMC connection on HMC will be lost (LPM)(kernel/powerpc-ibm-utils)

 

powerpc-utils 1.2.25, which will contain this fix and a few others we
want, will be released on Mondayish, so I'll roll it up and upload then.

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https://bugs.launchpad.net/bugs/1441856

Title:
  ISST-LTE:Ubuntu15.04: After migration of Ubuntu15.04 lpar, RMC
  connection on HMC will be lost (LPM)(kernel/powerpc-ibm-utils)

Status in linux package in Ubuntu:
  Fix Committed
Status in powerpc-ibm-utils package in Ubuntu:
  New

Bug description:
  Defect Description:
  ----------------------------

  For Ubuntu15.04 lpar which has Active RMC connection with HMC, once
  the lpar is migrated to another machine in same/different HMC, the RMC
  connection on HMC with the lpar will be lost.

  The following upstream fixes are required to ensure device tree is
  properly updated after migration/suspend and that the RMC connection
  is not lost as a result.

  From powerpc-utils upstream -next branch:
  ------------------------------------------------------------------

  commit a941cdfb9609bba04c5bad18ab8af1c85b7b6a9b
  Author: Tyrel Datwyler <tyreld@xxxxxxxxxxxxxxxxxx>
  Date:   Tue Mar 31 18:23:59 2015 -0400

      drmgr: Use sysfs migration store to initiate migration when
  possible

  From mainline Linux 4.0:
  --------------------------------------

  commit f6ff04149637723261aa4738958b0098b929ee9e
  Author: Tyrel Datwyler <tyreld@xxxxxxxxxxxxxxxxxx>
  Date:   Wed Mar 4 11:59:33 2015 -0800

      powerpc/pseries: Little endian fixes for post mobility device tree
  update

  From mpe's PowerPC -next branch:
  -----------------------------------------------------

  commit 288a298c05774dde0a8d5abac9b692503d4e41f2
  Author: Tyrel Datwyler <tyreld@xxxxxxxxxxxxxxxxxx>
  Date:   Wed Mar 4 18:25:38 2015 -0800

      powerpc/pseries: Introduce api_version to migration sysfs
  interface

  commit c03e73740d24fbe990291cd9ac2d6ae0d95b975f
  Author: Tyrel Datwyler <tyreld@xxxxxxxxxxxxxxxxxx>
  Date:   Fri Mar 27 12:47:25 2015 -0700

      powerpc/pseries: Simplify check for suspendability during
  suspend/migration

  
  I have verified LPM after installing test packages containing the mentioned patches and now LPM works fine for me.

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