# git rev-parse -q --verify aa42c53959dbad0e6ea12d1c4eda1c0061e47cd1^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/tip auto-latest
warning: The last gc run reported the following. Please correct the root cause
and remove .git/gc.log.
Automatic cleanup will not be performed until the file is removed.

warning: There are too many unreachable loose objects; run 'git prune' to remove them.

# git rev-parse -q --verify aa42c53959dbad0e6ea12d1c4eda1c0061e47cd1^{commit}
aa42c53959dbad0e6ea12d1c4eda1c0061e47cd1
# git checkout -q -f -B kisskb aa42c53959dbad0e6ea12d1c4eda1c0061e47cd1
# git clean -qxdf
# < git log -1
# commit aa42c53959dbad0e6ea12d1c4eda1c0061e47cd1
# Merge: 01961b10c5c3 6e0d6ac5f3d9
# Author: Ingo Molnar <mingo@kernel.org>
# Date:   Tue Jun 2 08:16:21 2020 +0200
# 
#     Merge branch 'core/core'
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 aa42c53959dbad0e6ea12d1c4eda1c0061e47cd1
# < make -s -j 8 ARCH=powerpc O=/kisskb/build/tip_ppc64_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  ppc64_defconfig
# < make -s -j 8 ARCH=powerpc O=/kisskb/build/tip_ppc64_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 8 ARCH=powerpc O=/kisskb/build/tip_ppc64_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 8 ARCH=powerpc O=/kisskb/build/tip_ppc64_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  
Completed OK
# rm -rf /kisskb/build/tip_ppc64_defconfig_powerpc-gcc4.9
# Build took: 0:07:03.864767