Hello,
Using 2.6.27 (32bit, x86) on Gentoo, I received the following error when
compiling the kernel:
---------------------------------------------------------
WARNING: vmlinux.o(.cpuinit.data+0x0): Section mismatch in reference
from the variable initial_code to the function
.init.text:i386_start_kernel()
The variable __cpuinitdata initial_code references
a function __init i386_start_kernel().
If i386_start_kernel is only used by initial_code then
annotate i386_start_kernel with a matching annotation.
---------------------------------------------------------
I found a similar error with the 64bit (x86_64) version and developed a
patch from that.
Attached is the patch and a stripped down config file to trigger the error.