# git gc
# git rev-parse -q --verify 512dee0c00ad9e9c7ae9f11fc6743702ea40caff^{commit}
512dee0c00ad9e9c7ae9f11fc6743702ea40caff
already have revision, skipping fetch
# git checkout -q -f -B kisskb 512dee0c00ad9e9c7ae9f11fc6743702ea40caff
# git clean -qxdf
# < git log -1
# commit 512dee0c00ad9e9c7ae9f11fc6743702ea40caff
# Merge: 2ac44821a816 a664ec9158ee
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Wed Jan 4 12:11:29 2023 -0800
# 
#     Merge tag 'x86-urgent-2023-01-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
#     
#     Pull misc x86 fixes from Ingo Molnar:
#      "Fix a double-free bug, a binutils warning, a header namespace clash
#       and a bug in ib_prctl_set()"
#     
#     * tag 'x86-urgent-2023-01-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
#       x86/bugs: Flush IBP in ib_prctl_set()
#       x86/insn: Avoid namespace clash by separating instruction decoder MMIO type from MMIO trace type
#       x86/asm: Fix an assembler warning with current binutils
#       x86/kexec: Fix double-free of elf header 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 512dee0c00ad9e9c7ae9f11fc6743702ea40caff
# < make -s -j 24 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 defconfig
# < make -s -j 24 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 help
# make -s -j 24 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 olddefconfig
# make -s -j 24 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 
/kisskb/src/arch/um/os-Linux/util.c:17:24: fatal error: sys/random.h: No such file or directory
compilation terminated.
make[3]: *** [/kisskb/src/scripts/Makefile.build:252: arch/um/os-Linux/util.o] Error 1
make[2]: *** [/kisskb/src/scripts/Makefile.build:504: arch/um/os-Linux] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/kisskb/src/Makefile:2008: .] Error 2
make: *** [Makefile:242: __sub-make] Error 2
Command 'make -s -j 24 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_um-defconfig_um-x86_64
# Build took: 0:06:38.186228