System hangs where lots of tasks waiting for page writeback to complete where vsapiapp is blocking in spinlock and prevent kthreadd from taking the CPU.

Solution Unverified - Updated -

Issue

  • System hangs where lots of tasks are waiting for page writeback to complete where vsapiapp is blocking in spinlock and prevent kthreadd from taking CPU time to go ahead.

Environment

  • RHEL7.1 (kernel-3.10.0-229.el7)
  • TrendMicro ServerProtect for Linux

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