# git gc
# git rev-parse -q --verify c2da5bdc66a377f0b82ee959f19f5a6774706b83^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
# git rev-parse -q --verify c2da5bdc66a377f0b82ee959f19f5a6774706b83^{commit}
c2da5bdc66a377f0b82ee959f19f5a6774706b83
# git checkout -q -f -B kisskb c2da5bdc66a377f0b82ee959f19f5a6774706b83
# git clean -qxdf
# < git log -1
# commit c2da5bdc66a377f0b82ee959f19f5a6774706b83
# Merge: 168829ad09ca 0bcd7762727d
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Nov 26 17:12:12 2019 -0800
# 
#     Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
#     
#     Pull x86 merge fix from Ingo Molnar:
#      "I missed one other semantic conflict that can result in build failures
#       on certain stripped down x86 32-bit configs, for example 32-bit
#       'allnoconfig' where CONFIG_X86_IOPL_IOPERM gets turned off"
#     
#     * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
#       x86/iopl: Make 'struct tss_struct' constant size again
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 c2da5bdc66a377f0b82ee959f19f5a6774706b83
# < make -s -j 24 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  randconfig
KCONFIG_SEED=0xC22E17E4
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# yes \n | make -s -j 24 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 24 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  
Completed OK
# rm -rf /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8
# Build took: 0:09:53.692514