# git rev-parse -q --verify a38fd8748464831584a19438cbb3082b5a2dab15^{commit}
a38fd8748464831584a19438cbb3082b5a2dab15
already have revision, skipping fetch
# git checkout -q -f -B kisskb a38fd8748464831584a19438cbb3082b5a2dab15
# git clean -qxdf
# < git log -1
# commit a38fd8748464831584a19438cbb3082b5a2dab15
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Mar 5 17:33:41 2021 -0800
# 
#     Linux 5.12-rc2
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 a38fd8748464831584a19438cbb3082b5a2dab15
# < make -s -j 120 ARCH=x86_64 O=/kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-  allnoconfig
# < make -s -j 120 ARCH=x86_64 O=/kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-  help
# make -s -j 120 ARCH=x86_64 O=/kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-  olddefconfig
# make -s -j 120 ARCH=x86_64 O=/kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-  
Completed OK
# rm -rf /kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.9
# Build took: 0:00:16.177995