# git rev-parse -q --verify 6ac86aae89289121db784161fe318819778f7f2a^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
warning: 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 6ac86aae89289121db784161fe318819778f7f2a^{commit}
6ac86aae89289121db784161fe318819778f7f2a
# git checkout -q -f -B kisskb 6ac86aae89289121db784161fe318819778f7f2a
# git clean -qxdf
# < git log -1
# commit 6ac86aae89289121db784161fe318819778f7f2a
# Merge: 17860ccabff5 84d572e634e2
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Mar 30 10:54:22 2021 -0700
# 
#     Merge tag 's390-5.12-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
#     
#     Pull s390 updates from Heiko Carstens:
#     
#      - fix incorrect initialization and update of vdso data pages, which
#        results in incorrect tod clock steering, and that
#        clock_gettime(CLOCK_MONOTONIC_RAW, ...) returns incorrect values.
#     
#      - update MAINTAINERS for s390 vfio drivers
#     
#     * tag 's390-5.12-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
#       MAINTAINERS: add backups for s390 vfio drivers
#       s390/vdso: fix initializing and updating of vdso_data
#       s390/vdso: fix tod_steering_delta type
#       s390/vdso: copy tod_steering_delta value to vdso_data page
# < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 6ac86aae89289121db784161fe318819778f7f2a
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  randconfig
KCONFIG_SEED=0x548790F0
# Added to kconfig CONFIG_STANDALONE=y
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_CPU_BIG_ENDIAN=y
# Added to kconfig CONFIG_PPC64=y
# Added to kconfig CONFIG_PPC_DISABLE_WERROR=y
# Added to kconfig CONFIG_SECTION_MISMATCH_WARN_ONLY=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_LD_HEAD_STUB_CATCH=y
# Added to kconfig CONFIG_TRIM_UNUSED_KSYMS=n
# Added to kconfig CONFIG_UBSAN=n
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 48 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
.config:4327:warning: override: reassigning to symbol STANDALONE
.config:4331:warning: override: reassigning to symbol PPC64
.config:4332:warning: override: reassigning to symbol PPC_DISABLE_WERROR
.config:4336:warning: override: reassigning to symbol GCC_PLUGINS
# make -s -j 48 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
  MKDIR     /kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc9/tools/bpf/resolve_btfids//libbpf
  MKDIR     /kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc9/tools/bpf/resolve_btfids//libsubcmd
  LINK     resolve_btfids
/kisskb/src/arch/powerpc/kernel/eeh.c:1571:12: warning: 'proc_eeh_show' defined but not used [-Wunused-function]
 1571 | static int proc_eeh_show(struct seq_file *m, void *v)
      |            ^~~~~~~~~~~~~
BTF: .tmp_vmlinux.btf: pahole (pahole) is not available
Failed to generate BTF for vmlinux
Try to disable CONFIG_DEBUG_INFO_BTF
make[1]: *** [/kisskb/src/Makefile:1199: vmlinux] Error 1
make: *** [Makefile:215: __sub-make] Error 2
Command 'make -s -j 48 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc9
# Build took: 0:04:44.649809