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[Tim Gardner <tim.gardner@xxxxxxxxxxxxx>]

** Also affects: linux (Ubuntu Xenial)
   Importance: High
     Assignee: Canonical Kernel Team (canonical-kernel-team)
       Status: Triaged

** Also affects: linux (Ubuntu Wily)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Wily)
       Status: New => In Progress

** Changed in: linux (Ubuntu Wily)
     Assignee: (unassigned) => Tim Gardner (timg-tpi)

** Changed in: linux (Ubuntu Xenial)
       Status: Triaged => Fix Committed

** Changed in: linux (Ubuntu Xenial)
     Assignee: Canonical Kernel Team (canonical-kernel-team) => Tim Gardner (timg-tpi)

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https://bugs.launchpad.net/bugs/1539102

Title:
  EPOW related RTAS event messages in kernel logs

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Wily:
  In Progress
Status in linux source package in Xenial:
  Fix Committed

Bug description:
  Problem Description
  ===============================
  EPOW related RTAS event messages in kernel logs 
   

  Machine Type = POWER8 
   
  Steps to Reproduce
  =============================
   1) Install Ubuntu14.04 on a Power VM LPAR.
  2) Post reboot following events are logged into dmesg & /var/log/syslog

  [216112.739470] Non critical power or cooling issue cleared
  [216122.992606] RTAS: event: 187589, Type: EPOW, Severity: 1
  [216122.992609] Non critical power or cooling issue cleared
  [216129.240731] RTAS: event: 187590, Type: EPOW, Severity: 1
  [216129.240733] Non critical power or cooling issue cleared
  [216141.612689] RTAS: event: 187591, Type: EPOW, Severity: 1
  [216141.612691] Non critical power or cooling issue cleared
  [216147.830578] RTAS: event: 187592, Type: EPOW, Severity: 1
  [216147.830580] Non critical power or cooling issue cleared
  [216158.334408] RTAS: event: 187593, Type: EPOW, Severity: 1
  [216158.334410] Non critical power or cooling issue cleared
  [216199.883138] RTAS: event: 187594, Type: EPOW, Severity: 1
  [216199.883140] Non critical power or cooling issue cleared
  [216244.596335] RTAS: event: 187595, Type: EPOW, Severity: 1
  [216244.596337] Non critical power or cooling issue cleared
  [216250.853514] RTAS: event: 187596, Type: EPOW, Severity: 1
  [216250.853516] Non critical power or cooling issue cleared
  [216263.319986] RTAS: event: 187597, Type: EPOW, Severity: 1
  [216263.319989] Non critical power or cooling issue cleared
  [216271.438925] RTAS: event: 187598, Type: EPOW, Severity: 1

  
  The log is filled with several such messages along with 

  RTAS: event: 13884, Type: Platform Error, Severity: 2
  RTAS: event: 13885, Type: Platform Error, Severity: 2
  RTAS: event: 13886, Type: Platform Error, Severity: 2
  RTAS: event: 13887, Type: Platform Error, Severity: 2
  RTAS: event: 13888, Type: Platform Error, Severity: 2
  RTAS: event: 13889, Type: Platform Error, Severity: 2
  RTAS: event: 13890, Type: Platform Error, Severity: 2
  RTAS: event: 13891, Type: Platform Error, Severity: 2

  Regrads
  Praveen

  == Comment: #2 - VASANT HEGDE <hegdevasant@xxxxxxxxxx> -  ==
  Below upstream patch fixes this issue..I believe this will apply cleanly on top of Ubuntu 14.04.04 kernel.

  
  commit b4af279a7cba5cc1f665485e8ecdf272f1ba0cc5
  Author: Vipin K Parashar <vipin@xxxxxxxxxxxxxxxxxx>
  Date:   Tue Dec 1 16:43:42 2015 +0530

      powerpc/pseries: Limit EPOW reset event warnings
      
      Kernel prints respective warnings about various EPOW events for
      user information/action after parsing EPOW interrupts. At times
      below EPOW reset event warning is seen to be flooding kernel log
      over a period of time.

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