reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/djiang/linux.git/commit/?id=4c96849fd2546afeaa7696d4d267d3889a211cf7 git remote add djiang https://git.kernel.org/pub/scm/linux/kernel/git/djiang/linux.git git fetch --no-tags djiang cxl/fwctl git checkout 4c96849fd2546afeaa7696d4d267d3889a211cf7 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=i386 olddefconfig make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash