System Information
Archlinux
Blender Version
Broken: 2.72b, from blender.org
Short description of error
Attempting to join two vertices with J as shown here causes blender to freeze and memory usage to spike until blender is killed.
Exact steps for others to reproduce the error
- Open the blend file from this SE post: http://blender.stackexchange.com/q/18565/599
- Delete the existing edge between the vertices selected in the above screenshot
- With those vertices selected, press J