After compiling and booting on kernel 5.10.11 theres is no log output to /dev/console.

X client xconsole does not show anything, completely @!# mude.

If I do 
# echo XXX > /dev/console there is no output

# echo XXX > /dev/tty0 still goes to VT terminals.

I did, copy .config from kernel 5.10.8 to root path of untared kernel 5.10.11 and
then
#make olconfig

# ls -l /dev/console
crw------- 1 root root 5, 1 Jan 29 17:30 /dev/console

Any clue?
Or probably revert back to kernel 5.10.8

Thanks