# git rev-parse -q --verify 9e1ff307c779ce1f0f810c7ecce3d95bbae40896^{commit}
9e1ff307c779ce1f0f810c7ecce3d95bbae40896
already have revision, skipping fetch
# git checkout -q -f -B kisskb 9e1ff307c779ce1f0f810c7ecce3d95bbae40896
# git clean -qxdf
# < git log -1
# commit 9e1ff307c779ce1f0f810c7ecce3d95bbae40896
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Oct 3 14:08:47 2021 -0700
# 
#     Linux 5.15-rc4
# < /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 9e1ff307c779ce1f0f810c7ecce3d95bbae40896
# < 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: 0:00:29.311320