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[Daniel Lezcano <1102347@xxxxxxxxxxxxxxxxxx>]

It appears Chander was not able to reproduce it and I was able to
reproduce it.

After comparing the config file for the kernel, the rcu stall occurs with the Multi-core scheduler support option
CONFIG_SCHED_MC=y

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Kernel.
https://bugs.launchpad.net/bugs/1102347

Title:
  exynos : rcu stall with 3.8-rc2

Status in Kernel related development for Power Management Working Group:
  Confirmed

Bug description:
  When offlining / onlining cpu1 several times, the kernel hangs with a
  rcu stall.

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