# git rev-parse -q --verify 61556703b610a104de324e4f061dc6cf7b218b46^{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 61556703b610a104de324e4f061dc6cf7b218b46^{commit}
61556703b610a104de324e4f061dc6cf7b218b46
# git checkout -q -f -B kisskb 61556703b610a104de324e4f061dc6cf7b218b46
# git clean -qxdf
# < git log -1
# commit 61556703b610a104de324e4f061dc6cf7b218b46
# Merge: 3afe9076a7c1 7f3414226b58
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Wed Feb 3 11:56:58 2021 -0800
# 
#     Merge tag 'for-linus-5.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
#     
#     Pull UML fixes from Richard Weinberger:
#     
#      - Make sure to set a default console, otherwise ttynull is selected
#     
#      - Revert initial ARCH_HAS_SET_MEMORY support, this needs more work
#     
#      - Fix a regression due to ubd refactoring
#     
#      - Various small fixes
#     
#     * tag 'for-linus-5.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
#       um: time: fix initialization in time-travel mode
#       um: fix os_idle_sleep() to not hang
#       Revert "um: support some of ARCH_HAS_SET_MEMORY"
#       Revert "um: allocate a guard page to helper threads"
#       um: virtio: free vu_dev only with the contained struct device
#       um: kmsg_dumper: always dump when not tty console
#       um: stdio_console: Make preferred console
#       um: return error from ioremap()
#       um: ubd: fix command line handling of ubd
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 61556703b610a104de324e4f061dc6cf7b218b46
# < make -s -j 10 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  randconfig
KCONFIG_SEED=0x5897A060
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# < make -s -j 10 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  help
# make -s -j 10 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  olddefconfig
# make -s -j 10 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  
arch/arm64/Makefile:25: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
arch/arm64/Makefile:25: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
Completed OK
# rm -rf /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4
# Build took: 0:05:08.473596