reproduce (this is a W=1 build):
        git checkout b18703ea7157f62f02eb0ceb11f6fa0138e90adc
        b4 shazam https://lore.kernel.org/r/20240722171939.3349410-12-john.ogness@linutronix.de
        # 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/printk/