# git rev-parse -q --verify 2521bfed6027330d9e0ab10a6b00eff01f45001c^{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 2521bfed6027330d9e0ab10a6b00eff01f45001c^{commit}
2521bfed6027330d9e0ab10a6b00eff01f45001c
# git checkout -q -f -B kisskb 2521bfed6027330d9e0ab10a6b00eff01f45001c
# git clean -qxdf
# < git log -1
# commit 2521bfed6027330d9e0ab10a6b00eff01f45001c
# Merge: 202bb4a77c5e 34816d20f173
# Author: Ingo Molnar <mingo@kernel.org>
# Date:   Thu Dec 3 19:45:01 2020 +0100
# 
#     Merge branch 'linus' into auto-latest
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 2521bfed6027330d9e0ab10a6b00eff01f45001c
# < make -s -j 48 ARCH=x86 O=/kisskb/build/tip_x86_64_defconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  x86_64_defconfig
# < make -s -j 48 ARCH=x86 O=/kisskb/build/tip_x86_64_defconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  help
# make -s -j 48 ARCH=x86 O=/kisskb/build/tip_x86_64_defconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  olddefconfig
# make -s -j 48 ARCH=x86 O=/kisskb/build/tip_x86_64_defconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  
Completed OK
# rm -rf /kisskb/build/tip_x86_64_defconfig_x86_64-gcc8
# Build took: 0:02:29.870872