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

** Also affects: linux-oem (Ubuntu Artful)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Artful)
       Status: New => Fix Committed

** Changed in: linux-oem (Ubuntu Artful)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1736393

Title:
  [Artful][Wyse 3040] System hang when trying to enable an offlined CPU
  core

Status in HWE Next:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux-oem package in Ubuntu:
  Invalid
Status in linux source package in Xenial:
  Invalid
Status in linux-oem source package in Xenial:
  Fix Released
Status in linux source package in Artful:
  Fix Committed
Status in linux-oem source package in Artful:
  Invalid

Bug description:
  1. disable cpu[1-3] $ echo 0 > /sys/devices/system/cpu/cpu[1-3]/online
  2. enable cpu[1-3] $ echo 1 > /sys/devices/system/cpu/cpu[1-3]/online

  System will hang on step 2.

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