# git rev-parse -q --verify ccaaaf6fe5a5e1fffca5cca0f3fc4ec84d7ae752^{commit}
ccaaaf6fe5a5e1fffca5cca0f3fc4ec84d7ae752
already have revision, skipping fetch
# git checkout -q -f -B kisskb ccaaaf6fe5a5e1fffca5cca0f3fc4ec84d7ae752
# git clean -qxdf
# < git log -1
# commit ccaaaf6fe5a5e1fffca5cca0f3fc4ec84d7ae752
# Merge: 35c222fd3236 45fc24e89b7c
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Thu Jan 30 16:11:50 2020 -0800
# 
#     Merge tag 'mpx-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/daveh/x86-mpx
#     
#     Pull x86 MPX removal from Dave Hansen:
#      "MPX requires recompiling applications, which requires compiler
#       support. Unfortunately, GCC 9.1 is expected to be be released without
#       support for MPX. This means that there was only a relatively small
#       window where folks could have ever used MPX. It failed to gain wide
#       adoption in the industry, and Linux was the only mainstream OS to ever
#       support it widely.
#     
#       Support for the feature may also disappear on future processors.
#     
#       This set completes the process that we started during the 5.4 merge
#       window when the MPX prctl()s were removed. XSAVE support is left in
#       place, which allows MPX-using KVM guests to continue to function"
#     
#     * tag 'mpx-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/daveh/x86-mpx:
#       x86/mpx: remove MPX from arch/x86
#       mm: remove arch_bprm_mm_init() hook
#       x86/mpx: remove bounds exception code
#       x86/mpx: remove build infrastructure
#       x86/alternatives: add missing insn.h include
# < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 ccaaaf6fe5a5e1fffca5cca0f3fc4ec84d7ae752
# < make -s -j 80 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-  randconfig
KCONFIG_SEED=0xD7CB7538
# Added to kconfig CONFIG_STANDALONE=y
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n
# Added to kconfig CONFIG_GCC_PLUGINS=n
# Added to kconfig CONFIG_GCC_PLUGIN_CYC_COMPLEXITY=n
# Added to kconfig CONFIG_GCC_PLUGIN_SANCOV=n
# Added to kconfig CONFIG_GCC_PLUGIN_LATENT_ENTROPY=n
# yes \n | make -s -j 80 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 80 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-  
You are building kernel with non-retpoline compiler.
Please update your compiler.
make[1]: *** [arch/x86/Makefile:309: checkbin] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:179: sub-make] Error 2
Command 'make -s -j 80 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus-rand_x86_64-randconfig_um-x86_64
# Build took: 0:00:10.829010