# git rev-parse -q --verify b4d0562137c9035becad5fc0588f6163aed916db^{commit}
b4d0562137c9035becad5fc0588f6163aed916db
already have revision, skipping fetch
# git checkout -q -f -B kisskb b4d0562137c9035becad5fc0588f6163aed916db
# git clean -qxdf
# < git log -1
# commit b4d0562137c9035becad5fc0588f6163aed916db
# Merge: c42c12a 9d6d99e
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Jul 6 09:14:34 2018 -0700
# 
#     Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
#     
#     Pull s390 fixes from Martin Schwidefsky:
#      "A few more changes for v4.18:
#     
#        - wire up the two new system calls io_pgetevents and rseq
#     
#        - fix a register corruption in the expolines code for machines
#          without EXRL
#     
#        - drastically reduce the memory utilization of the dasd driver
#     
#        - fix reference counting for KVM page table pages"
#     
#     * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
#       s390: wire up rseq system call
#       s390: wire up io_pgetevents system call
#       s390/mm: fix refcount usage for 4K pgste
#       s390/dasd: reduce the default queue depth and nr of hardware queues
#       s390: Correct register corruption in critical section cleanup
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-gcc --version
# < git log --format=%s --max-count=1 b4d0562137c9035becad5fc0588f6163aed916db
# < make -s -j 48 ARCH=arm64 O=/kisskb/build/linus_arm64-defconfig_arm64 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  defconfig
# make -s -j 48 ARCH=arm64 O=/kisskb/build/linus_arm64-defconfig_arm64 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  
arch/arm64/Makefile:27: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
arch/arm64/Makefile:40: LSE atomics not supported by binutils
<stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
Completed OK
# rm -rf /kisskb/build/linus_arm64-defconfig_arm64
# Build took: 0:04:02.632321