# git rev-parse -q --verify 40e020c129cfc991e8ab4736d2665351ffd1468d^{commit}
40e020c129cfc991e8ab4736d2665351ffd1468d
already have revision, skipping fetch
# git checkout -q -f -B kisskb 40e020c129cfc991e8ab4736d2665351ffd1468d
# git clean -qxdf
# < git log -1
# commit 40e020c129cfc991e8ab4736d2665351ffd1468d
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Dec 9 15:31:00 2018 -0800
# 
#     Linux 4.20-rc6
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-gcc --version
# < git log --format=%s --max-count=1 40e020c129cfc991e8ab4736d2665351ffd1468d
# < make -s -j 8 ARCH=i386 O=/kisskb/build/linus-rand_i386-randconfig_i386 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-  randconfig
KCONFIG_SEED=0xFF7B1898
# Added to kconfig CONFIG_STANDALONE=y
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# yes \n | make -s -j 8 ARCH=i386 O=/kisskb/build/linus-rand_i386-randconfig_i386 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 8 ARCH=i386 O=/kisskb/build/linus-rand_i386-randconfig_i386 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-  
You are building kernel with non-retpoline compiler.
Please update your compiler.
make[1]: *** [arch/x86/Makefile:311: checkbin] Error 1
make: *** [Makefile:152: sub-make] Error 2
Command 'make -s -j 8 ARCH=i386 O=/kisskb/build/linus-rand_i386-randconfig_i386 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus-rand_i386-randconfig_i386
# Build took: 0:00:05.190293