# git rev-parse -q --verify cb268d806972c76c34e5d74343fb6064cd722c7c^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
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 cb268d806972c76c34e5d74343fb6064cd722c7c^{commit}
cb268d806972c76c34e5d74343fb6064cd722c7c
# git checkout -q -f -B kisskb cb268d806972c76c34e5d74343fb6064cd722c7c
# git clean -qxdf
# < git log -1
# commit cb268d806972c76c34e5d74343fb6064cd722c7c
# Merge: ef4edb3ed830 ede0fa98a900
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Feb 22 17:48:50 2019 -0800
# 
#     Merge branch 'fixes-v5.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
#     
#     Pull keys fixes from James Morris:
#      "Two fixes from Eric Biggers"
#     
#     * 'fixes-v5.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
#       KEYS: always initialize keyring_index_key::desc_len
#       KEYS: user: Align the payload buffer
# < /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 cb268d806972c76c34e5d74343fb6064cd722c7c
# < make -s -j 48 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=0x7E3CA3FB
# 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 48 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 48 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:300: checkbin] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:152: sub-make] Error 2
Command 'make -s -j 48 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: 0:00:06.514480