System Information
Operating system: Windows-10-10.0.18362 64 Bits
Graphics card: NVS 4200M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 391.58

Blender Version
Broken: version: 2.80 (sub 54), branch: master, commit date: 2019-04-06 12:26, hash: rBcc73d59ad580
Worked: (optional)

Short description of error

1. create two armatures in Object Mode.

2)select both armatures then go to Edit mode.

3. in Edit Mode select both armatues and press CTRL-P to create parent and child relationship.
4. pop....Blender suddenly exit abruptly.