# git rev-parse -q --verify e48661230cc35b3d0f4367eddfc19f86463ab917^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
# git rev-parse -q --verify e48661230cc35b3d0f4367eddfc19f86463ab917^{commit}
e48661230cc35b3d0f4367eddfc19f86463ab917
# git checkout -q -f -B kisskb e48661230cc35b3d0f4367eddfc19f86463ab917
# git clean -qxdf
# < git log -1
# commit e48661230cc35b3d0f4367eddfc19f86463ab917
# Merge: a2de4bbddce3 b208108638c4
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Thu May 6 14:39:50 2021 -0700
# 
#     Merge tag 's390-5.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
#     
#     Pull more s390 updates from Heiko Carstens:
#     
#      - add support for system call stack randomization
#     
#      - handle stale PCI deconfiguration events
#     
#      - couple of defconfig updates
#     
#      - some fixes and cleanups
#     
#     * tag 's390-5.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
#       s390: fix detection of vector enhancements facility 1 vs. vector packed decimal facility
#       s390/entry: add support for syscall stack randomization
#       s390/configs: change CONFIG_VIRTIO_CONSOLE to "m"
#       s390/cio: remove invalid condition on IO_SCH_UNREG
#       s390/cpumf: remove call to perf_event_update_userpage
#       s390/cpumf: move counter set size calculation to common place
#       s390/cpumf: beautify if-then-else indentation
#       s390/configs: enable CONFIG_PCI_IOV
#       s390/pci: handle stale deconfiguration events
#       s390/pci: rename zpci_configure_device()
# < /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 e48661230cc35b3d0f4367eddfc19f86463ab917
# < 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
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# < 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-  help
# 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-  olddefconfig
.config:5484:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD
# 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-  
  MKDIR     /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8/tools/bpf/resolve_btfids//libbpf
  MKDIR     /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8/tools/bpf/resolve_btfids//libsubcmd
  LINK     resolve_btfids
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:1196: vmlinux] Error 1
make: *** [Makefile:215: __sub-make] Error 2
Command '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-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8
# Build took: 0:06:16.993990