# git rev-parse -q --verify 2bbacd1a92788ee334c7e92b765ea16ebab68dfe^{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 2bbacd1a92788ee334c7e92b765ea16ebab68dfe^{commit}
2bbacd1a92788ee334c7e92b765ea16ebab68dfe
# git checkout -q -f -B kisskb 2bbacd1a92788ee334c7e92b765ea16ebab68dfe
# git clean -qxdf
# < git log -1
# commit 2bbacd1a92788ee334c7e92b765ea16ebab68dfe
# Merge: fcdec14365ec 9b9f5948afcd
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Wed May 15 09:06:14 2019 -0700
# 
#     Merge tag 'kconfig-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
#     
#     Pull Kconfig updates from Masahiro Yamada:
#     
#      - error out if a user specifies a directory instead of a file from
#        "Save" menu of GUI interfaces
#     
#      - do not overwrite .config if there is no change in the configuration
#     
#      - create parent directories as needed when a user specifies a new file
#        path from "Save" menu of menuconfig/nconfig
#     
#      - fix potential buffer overflow
#     
#      - some trivial cleanups
#     
#     * tag 'kconfig-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
#       kconfig: make conf_get_autoconfig_name() static
#       kconfig: use snprintf for formatting pathnames
#       kconfig: remove useless NULL pointer check in conf_write_dep()
#       kconfig: make parent directories for the saved .config as needed
#       kconfig: do not write .config if the content is the same
#       kconfig: do not accept a directory for configuration output
#       kconfig: remove trailing whitespaces
#       kconfig: Make nconf-cfg.sh executable
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-ld --version
# < git log --format=%s --max-count=1 2bbacd1a92788ee334c7e92b765ea16ebab68dfe
# < make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-allnoconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-  allnoconfig
# make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-allnoconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-  
<stdin>:1388:2: warning: #warning syscall open_tree not implemented [-Wcpp]
<stdin>:1391:2: warning: #warning syscall move_mount not implemented [-Wcpp]
<stdin>:1394:2: warning: #warning syscall fsopen not implemented [-Wcpp]
<stdin>:1397:2: warning: #warning syscall fsconfig not implemented [-Wcpp]
<stdin>:1400:2: warning: #warning syscall fsmount not implemented [-Wcpp]
<stdin>:1403:2: warning: #warning syscall fspick not implemented [-Wcpp]
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:193:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/arch/s390/kernel/machine_kexec.c:146:22: warning: 'do_start_kdump' defined but not used [-Wunused-function]
awk: line 2: function or never defined
awk: line 2: function strtonum never defined
/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-objcopy: --pad-to: bad number: arch/s390/boot/compressed/vmlinux
make[2]: *** [/kisskb/src/arch/s390/boot/Makefile:63: arch/s390/boot/bzImage] Error 1
make[1]: *** [arch/s390/Makefile:150: bzImage] Error 2
make: *** [Makefile:179: sub-make] Error 2
Command 'make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-allnoconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_s390-allnoconfig_s390x
# Build took: 0:00:16.046108