We are using IM.X6 with linux 3.0.35 from freescale for our real time application. We found out the linux3.0.35 kernel cannot meet our real time requirements. We are trying to apply the RT patch from https://rt.wiki.kernel.org/index.php/Main_Page. Once we applied the RT 3.0.35 patch for the freescale 3.0.35 linux, and found out that there are some files which cannot be patched. We manually updated these files, and could build the kernel image. However, the built kernel cannot run.
Later on, we found out the Freescale 3.0.35 is slight different from the official linux 3.0.35. We would like to know anybody here could share any thought on this.