Hyper-V console goes into blank/hang state after server crash situation untill reboot

Solution Verified - Updated -

Issue

  • Kdump is failing.
  • Unable to generate a vmcore on a Hyper-V guest.
  • Unable to see any logs over Hyper-V guest after manually crashing the server.
  • Kdump shell not visible over Hyper-V console after failing.

Environment

  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Hyper-V Host

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