hi reza.
have a look at the line
debian:/usr/src/linux# cp /root/config .config
It should be some thing like
cp /boot/config-X-X-X-X /usr/src/linux/.config
where -X-X-X-X is the version of the runing kernel.
and run make oldconfig before make menuconfig
with patching the kernel I can not say right or wrong.
so the cp /root/config .config is where things are going wrong.
all the best peter