# git rev-parse -q --verify 9637d517347e80ee2fe1c5d8ce45ba1b88d8b5cd^{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 9637d517347e80ee2fe1c5d8ce45ba1b88d8b5cd^{commit}
9637d517347e80ee2fe1c5d8ce45ba1b88d8b5cd
# git checkout -q -f -B kisskb 9637d517347e80ee2fe1c5d8ce45ba1b88d8b5cd
# git clean -qxdf
# < git log -1
# commit 9637d517347e80ee2fe1c5d8ce45ba1b88d8b5cd
# Merge: 273cbf61c3dd 787c79d6393f
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon Jul 15 21:20:52 2019 -0700
# 
#     Merge tag 'for-linus-20190715' of git://git.kernel.dk/linux-block
#     
#     Pull more block updates from Jens Axboe:
#      "A later pull request with some followup items. I had some vacation
#       coming up to the merge window, so certain things items were delayed a
#       bit. This pull request also contains fixes that came in within the
#       last few days of the merge window, which I didn't want to push right
#       before sending you a pull request.
#     
#       This contains:
#     
#        - NVMe pull request, mostly fixes, but also a few minor items on the
#          feature side that were timing constrained (Christoph et al)
#     
#        - Report zones fixes (Damien)
#     
#        - Removal of dead code (Damien)
#     
#        - Turn on cgroup psi memstall (Josef)
#     
#        - block cgroup MAINTAINERS entry (Konstantin)
#     
#        - Flush init fix (Josef)
#     
#        - blk-throttle low iops timing fix (Konstantin)
#     
#        - nbd resize fixes (Mike)
#     
#        - nbd 0 blocksize crash fix (Xiubo)
#     
#        - block integrity error leak fix (Wenwen)
#     
#        - blk-cgroup writeback and priority inheritance fixes (Tejun)"
#     
#     * tag 'for-linus-20190715' of git://git.kernel.dk/linux-block: (42 commits)
#       MAINTAINERS: add entry for block io cgroup
#       null_blk: fixup ->report_zones() for !CONFIG_BLK_DEV_ZONED
#       block: Limit zone array allocation size
#       sd_zbc: Fix report zones buffer allocation
#       block: Kill gfp_t argument of blkdev_report_zones()
#       block: Allow mapping of vmalloc-ed buffers
#       block/bio-integrity: fix a memory leak bug
#       nvme: fix NULL deref for fabrics options
#       nbd: add netlink reconfigure resize support
#       nbd: fix crash when the blksize is zero
#       block: Disable write plugging for zoned block devices
#       block: Fix elevator name declaration
#       block: Remove unused definitions
#       nvme: fix regression upon hot device removal and insertion
#       blk-throttle: fix zero wait time for iops throttled group
#       block: Fix potential overflow in blk_report_zones()
#       blkcg: implement REQ_CGROUP_PUNT
#       blkcg, writeback: Implement wbc_blkcg_css()
#       blkcg, writeback: Add wbc->no_cgroup_owner
#       blkcg, writeback: Rename wbc_account_io() to wbc_account_cgroup_owner()
#       ...
# < /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 9637d517347e80ee2fe1c5d8ce45ba1b88d8b5cd
# < make -s -j 10 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-  randconfig
KCONFIG_SEED=0x4B167D48
# 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 -s -j 10 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 10 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-  
You are building kernel with non-retpoline compiler.
Please update your compiler.
make[1]: *** [arch/x86/Makefile:308: checkbin] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:179: sub-make] Error 2
Command 'make -s -j 10 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus-rand_x86_64-randconfig_um-x86_64
# Build took: 0:00:13.507787