RHEL7.6 Kernel random panic or hung during boot in NVMe over FC environment.

Issue

• Kernel panic or hung at any time during boot.

• System is stuck during boot at ramdom point :

  [   24.606696] random: crng init done
  [  OK  ] Found device /dev/mapper/rootvg-lv_root.
  ...
           Mounting /sysroot...
  [    27.498985] EXT-fs (dm-0): mounted filesystem with ordered data mode.Opts:
           Mounted /sysroot.
  ...
  [  OK  ] Started dracut pre-pivot and cleanup hook.
  -- stuck --