# git rev-parse -q --verify 89876f275e8d562912d9c238cd888b52065cf25c^{commit}
89876f275e8d562912d9c238cd888b52065cf25c
already have revision, skipping fetch
# git checkout -q -f -B kisskb 89876f275e8d562912d9c238cd888b52065cf25c
# git clean -qxdf
# git log -1
commit 89876f275e8d562912d9c238cd888b52065cf25c
Merge: 12e971b ec35e48
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Fri Jan 5 13:02:46 2018 -0800

    Merge tag 'for-4.15-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
    
    Pull btrfs fixes from David Sterba:
     "We have two more fixes for 4.15, both aimed for stable.
    
      The leak fix is obvious, the second patch fixes a bug revealed by the
      refcount API, when it behaves differently than previous atomic_t and
      reports refs going from 0 to 1 in one case"
    
    * tag 'for-4.15-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
      btrfs: fix refcount_t usage when deleting btrfs_delayed_nodes
      btrfs: Fix flush bio leak
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < git log --format=%s --max-count=1 89876f275e8d562912d9c238cd888b52065cf25c
# < make -j 48 ARCH=x86_64 O=/home/kisskb/slave/build/linus_x86_64-randconfig_x86_64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-  randconfig
KCONFIG_SEED=0x65EF8731
# 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 -j 48 ARCH=x86_64 O=/home/kisskb/slave/build/linus_x86_64-randconfig_x86_64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-  oldconfig
yes: standard output: Broken pipe
yes: write error
# make -j 48 ARCH=x86_64 O=/home/kisskb/slave/build/linus_x86_64-randconfig_x86_64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-  
make[1]: Entering directory '/home/kisskb/slave/build/linus_x86_64-randconfig_x86_64'
  GEN     ./Makefile
scripts/kconfig/conf  --silentoldconfig Kconfig
scripts/Makefile.gcc-plugins:24: warning: cannot use CONFIG_KCOV: -fsanitize-coverage=trace-pc is not supported by compiler
  SYSTBL  arch/x86/include/generated/asm/syscalls_32.h
  CHK     include/config/kernel.release
  SYSHDR  arch/x86/include/generated/asm/unistd_32_ia32.h
  SYSHDR  arch/x86/include/generated/asm/unistd_64_x32.h
  SYSTBL  arch/x86/include/generated/asm/syscalls_64.h
  SYSHDR  arch/x86/include/generated/uapi/asm/unistd_32.h
  SYSHDR  arch/x86/include/generated/uapi/asm/unistd_x32.h
  HYPERCALLS arch/x86/include/generated/asm/xen-hypercalls.h
  SYSHDR  arch/x86/include/generated/uapi/asm/unistd_64.h
  HOSTCC  scripts/basic/bin2c
  GEN     ./Makefile
  WRAP    arch/x86/include/generated/uapi/asm/bpf_perf_event.h
  CHK     include/generated/uapi/linux/version.h
  UPD     include/generated/uapi/linux/version.h
gcc: error trying to exec 'cc1plus': execvp: No such file or directory
Cannot use CONFIG_GCC_PLUGINS: your gcc installation does not support plugins, perhaps the necessary headers are missing?
scripts/Makefile.gcc-plugins:69: recipe for target 'gcc-plugins-check' failed
make[1]: *** [gcc-plugins-check] Error 1
make[1]: *** Waiting for unfinished jobs....
  UPD     include/config/kernel.release
make[1]: Leaving directory '/home/kisskb/slave/build/linus_x86_64-randconfig_x86_64'
Makefile:146: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2
Command 'make -j 48 ARCH=x86_64 O=/home/kisskb/slave/build/linus_x86_64-randconfig_x86_64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-  ' returned non-zero exit status 2
# rm -rf /home/kisskb/slave/build/linus_x86_64-randconfig_x86_64
# Build took: 0:00:04.740631