# git rev-parse -q --verify 3b878812c3e1c6cd460885519612b022e60ab9f4^{commit}
3b878812c3e1c6cd460885519612b022e60ab9f4
already have revision, skipping fetch
# git checkout -q -f -B kisskb 3b878812c3e1c6cd460885519612b022e60ab9f4
# git clean -qxdf
# < git log -1
# commit 3b878812c3e1c6cd460885519612b022e60ab9f4
# Merge: a5bc6e124219 bb6d3fb354c5
# Author: Michael Ellerman <mpe@ellerman.id.au>
# Date:   Mon Feb 10 12:53:53 2020 +1100
# 
#     Automatic merge of branches 'master', 'next' and 'fixes' into merge
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 3b878812c3e1c6cd460885519612b022e60ab9f4
# < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-merge_powernv_defconfig+NO_NUMA_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  powernv_defconfig
# Added to kconfig CONFIG_NUMA=n
# yes \n | make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-merge_powernv_defconfig+NO_NUMA_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-merge_powernv_defconfig+NO_NUMA_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
WARNING: vmlinux.o(.text+0x2fc8): Section mismatch in reference from the variable start_here_common to the function .init.text:start_kernel()
The function start_here_common() references
the function __init start_kernel().
This is often because start_here_common lacks a __init 
annotation or the annotation of start_kernel is wrong.

Completed OK
# rm -rf /kisskb/build/powerpc-merge_powernv_defconfig+NO_NUMA_ppc64le-gcc5
# Build took: 0:02:59.289514