# git rev-parse -q --verify a1f91a8f560f43e1c24897d2e7f53c0952880d60^{commit}
a1f91a8f560f43e1c24897d2e7f53c0952880d60
already have revision, skipping fetch
# git checkout -q -f -B kisskb a1f91a8f560f43e1c24897d2e7f53c0952880d60
# git clean -qxdf
# < git log -1
# commit a1f91a8f560f43e1c24897d2e7f53c0952880d60
# Merge: 7ad32c863a31 0f85c4805184
# Author: Ingo Molnar <mingo@kernel.org>
# Date:   Fri Jul 24 16:44:57 2020 +0200
# 
#     Merge branch 'core/debugobjects'
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 a1f91a8f560f43e1c24897d2e7f53c0952880d60
# < make -s -j 48 ARCH=x86 O=/kisskb/build/tip_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  allmodconfig
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_SAMPLES=n
# < make -s -j 48 ARCH=x86 O=/kisskb/build/tip_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  help
# make -s -j 48 ARCH=x86 O=/kisskb/build/tip_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  olddefconfig
# make -s -j 48 ARCH=x86 O=/kisskb/build/tip_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  
ERROR: modpost: "sched_setscheduler" [kernel/trace/ring_buffer_benchmark.ko] undefined!
make[2]: *** [/kisskb/src/scripts/Makefile.modpost:111: Module.symvers] Error 1
make[2]: *** Deleting file 'Module.symvers'
make[1]: *** [/kisskb/src/Makefile:1360: modules] Error 2
make: *** [Makefile:185: __sub-make] Error 2
Command 'make -s -j 48 ARCH=x86 O=/kisskb/build/tip_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/tip_x86-allmodconfig_x86_64-gcc8
# Build took: 0:22:30.854309