reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/9723ebd13ec9e050081c95baace694bdea02bbae git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Andrew-Murray/printk-remove-BOOT_PRINTK_DELAY-config-option/20260701-004359 git checkout 9723ebd13ec9e050081c95baace694bdea02bbae # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 olddefconfig make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash kernel/