Why do i get such abnormal shadows on my mesh?

i get these abnormal shadows though ive got 4px padding at the lightmap
please help

thanks
hybreed

It might be that the thin uv shells that you have there are too thin to get good shadow information. Try scaling them up so that they are at the very least one pixel in width and height (relative to your light map resolution). Hopefully that will solve your problem.

That, and you may also need to increase the lightmap resolution.

It worked !!
Thank You!!!

Glad to hear it!