# git rev-parse -q --verify 20b3a3dfdf6c55b50bbdc8e231a3dbf6bf965dc7^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/stable linux-4.19.y
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 20b3a3dfdf6c55b50bbdc8e231a3dbf6bf965dc7^{commit}
20b3a3dfdf6c55b50bbdc8e231a3dbf6bf965dc7
# git checkout -q -f -B kisskb 20b3a3dfdf6c55b50bbdc8e231a3dbf6bf965dc7
# git clean -qxdf
# < git log -1
# commit 20b3a3dfdf6c55b50bbdc8e231a3dbf6bf965dc7
# Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# Date:   Wed Jul 22 09:32:14 2020 +0200
# 
#     Linux 4.19.134
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-ld --version
# < git log --format=%s --max-count=1 20b3a3dfdf6c55b50bbdc8e231a3dbf6bf965dc7
# < make -s -j 8 ARCH=s390 O=/kisskb/build/stable-4.19_s390-defconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  defconfig
# < make -s -j 8 ARCH=s390 O=/kisskb/build/stable-4.19_s390-defconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  help
# make -s -j 8 ARCH=s390 O=/kisskb/build/stable-4.19_s390-defconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  olddefconfig
# make -s -j 8 ARCH=s390 O=/kisskb/build/stable-4.19_s390-defconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  
Completed OK
# rm -rf /kisskb/build/stable-4.19_s390-defconfig_s390x-gcc4.9
# Build took: 0:06:36.645319