reproduce:
        git remote add akpm-mm https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git
        git fetch akpm-mm mm-nonmm-unstable
        git checkout akpm-mm/mm-nonmm-unstable
        b4 shazam https://lore.kernel.org/r/20240212213922.783301-21-surenb@google.com
        # 1. reproduce by kismet
           # install kmax per https://github.com/paulgazz/kmax/blob/master/README.md
           kismet --linux-ksrc=linux --selectees CONFIG_SLAB_OBJ_EXT --selectors CONFIG_MEM_ALLOC_PROFILING -a=alpha
        # 2. reproduce by make
           # save the config file to linux source tree
           cd linux
           make ARCH=alpha olddefconfig