# git rev-parse -q --verify b9b2a4e23ae6a71b64402183f3afa50f45b41d2a^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/mirror/linux-stable-rc.git linux-4.4.y
error: 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 b9b2a4e23ae6a71b64402183f3afa50f45b41d2a^{commit}
b9b2a4e23ae6a71b64402183f3afa50f45b41d2a
# git checkout -q -f -B kisskb b9b2a4e23ae6a71b64402183f3afa50f45b41d2a
# git clean -qxdf
# < git log -1
# commit b9b2a4e23ae6a71b64402183f3afa50f45b41d2a
# Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# Date:   Fri Feb 1 11:48:16 2019 +0100
# 
#     Linux 4.4.173-rc1
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-ld --version
# < git log --format=%s --max-count=1 b9b2a4e23ae6a71b64402183f3afa50f45b41d2a
# < make -s -j 80 ARCH=s390 O=/kisskb/build/stable-rc-4.4_s390-defconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-  defconfig
# make -s -j 80 ARCH=s390 O=/kisskb/build/stable-rc-4.4_s390-defconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-  
/kisskb/src/kernel/cgroup.c: In function 'cgroup_mount':
/kisskb/src/kernel/cgroup.c:2156:13: warning: 'root' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/btrfs/extent-tree.c: In function 'adjust_slots_upwards.isra.60':
/kisskb/src/fs/btrfs/extent-tree.c:8261:18: warning: array subscript is below array bounds [-Warray-bounds]
/kisskb/src/fs/btrfs/extent-tree.c:8262:17: warning: array subscript is below array bounds [-Warray-bounds]
Completed OK
# rm -rf /kisskb/build/stable-rc-4.4_s390-defconfig_s390x
# Build took: 0:01:46.844197