# git rev-parse -q --verify de620fb99ef2bd52b2c5bc52656e89dcfc0e223a^{commit}
de620fb99ef2bd52b2c5bc52656e89dcfc0e223a
already have revision, skipping fetch
# git checkout -q -f -B kisskb de620fb99ef2bd52b2c5bc52656e89dcfc0e223a
# git clean -qxdf
# < git log -1
# commit de620fb99ef2bd52b2c5bc52656e89dcfc0e223a
# Merge: 72d5ac679e246 937c6b27c73e0
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon Nov 11 12:41:14 2019 -0800
# 
#     Merge branch 'for-5.4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
#     
#     Pull cgroup fix from Tejun Heo:
#      "There's an inadvertent preemption point in ptrace_stop() which was
#       reliably triggering for a test scenario significantly slowing it down.
#     
#       This contains Oleg's fix to remove the unwanted preemption point"
#     
#     * 'for-5.4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
#       cgroup: freezer: call cgroup_enter_frozen() with preemption disabled in ptrace_stop()
# < /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 de620fb99ef2bd52b2c5bc52656e89dcfc0e223a
# < make -s -j 24 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-  defconfig
# make -s -j 24 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-  
cc1: error: unrecognized command line option '-mtune=zEC12'
cc1: error: unrecognized command line option '-mtune=zEC12'
make[2]: *** [/kisskb/src/scripts/Makefile.build:99: scripts/mod/devicetable-offsets.s] Error 1
make[2]: *** Waiting for unfinished jobs....
make[2]: *** [/kisskb/src/scripts/Makefile.build:266: scripts/mod/empty.o] Error 1
make[1]: *** [/kisskb/src/Makefile:1108: prepare0] Error 2
make: *** [Makefile:179: sub-make] Error 2
Command 'make -s -j 24 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_s390-defconfig_s390x
# Build took: 0:00:03.889965