windows 7 64 bit sp1
Broken: 2.77a abf6f08
If you paint texture in the 3d view and don't check the "Clamp overlap" in the bevel modifier will make blender use cpu 100%, than crash your computer. it's happen by sometimes, especially paint on the edge area, if you check "Clamp overlap" will work fine, and the small width in the save range will work too.
I am glad I found out why, it's make me crash too, you can download the blend file to verification this , hope this can helpful, sorry for my poor English, very thanks.
Exact steps for others to reproduce the error
Just open the .blend file, than paint in the 3d view.