I was trying execute the MIPv6 using 2.6.34 kernel on Gumstix Overo Air. I had set up my new build environment with 2.6.34 kernel on August 1st. 
However, On research I found that the 2.6.34 kernel has regression with MIPv6.

I had successfully tested the same code on 2.6.33 kernel. Does anyone know how to revert back to previous kernel in build environment. Or does anyone knows whether the problem of kernel regression in 2.6.34 has been fixed in the latest release.

Please let me know ASAP
Vishwanath I Heddoori