Can't debug kernel with serial console ... trying to find what's wrong ... 1st try with initram: using KTG .32 ... build hangs with
LD      .tmp_vmlinux1
fs/built-in.o:(.rodata+0x2744): undefined reference to `show_interrupts'
make: *** [.tmp_vmlinux1] Erreur 1
Will get more headache with that ...