# git rev-parse -q --verify 5816b3e6577eaa676ceb00a848f0fd65fe2adc29^{commit}
5816b3e6577eaa676ceb00a848f0fd65fe2adc29
already have revision, skipping fetch
# git checkout -q -f -B kisskb 5816b3e6577eaa676ceb00a848f0fd65fe2adc29
# git clean -qxdf
# < git log -1
# commit 5816b3e6577eaa676ceb00a848f0fd65fe2adc29
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Sep 26 14:08:19 2021 -0700
# 
#     Linux 5.15-rc3
# < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 5816b3e6577eaa676ceb00a848f0fd65fe2adc29
# < make -s -j 32 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 defconfig
# < make -s -j 32 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 help
# make -s -j 32 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 olddefconfig
# make -s -j 32 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 
/kisskb/src/arch/x86/um/Makefile:44: FORCE prerequisite is missing
  LINK linux
Completed OK
# rm -rf /kisskb/build/linus_um-defconfig_um-x86_64
# Build took: 0:00:54.438896