# git rev-parse -q --verify a188339ca5a396acc588e5851ed7e19f66b0ebd9^{commit}
a188339ca5a396acc588e5851ed7e19f66b0ebd9
already have revision, skipping fetch
# git checkout -q -f -B kisskb a188339ca5a396acc588e5851ed7e19f66b0ebd9
# git clean -qxdf
# < git log -1
# commit a188339ca5a396acc588e5851ed7e19f66b0ebd9
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun May 19 15:47:09 2019 -0700
# 
#     Linux 5.2-rc1
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-ld --version
# < git log --format=%s --max-count=1 a188339ca5a396acc588e5851ed7e19f66b0ebd9
# < make -s -j 8 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  defconfig
# make -s -j 8 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  
arch/s390/../../virt/kvm/kvm_main.o: In function `__kvm_map_gfn':
/kisskb/src/arch/s390/kvm/../../../virt/kvm/kvm_main.c:1764: undefined reference to `memremap'
arch/s390/../../virt/kvm/kvm_main.o: In function `kvm_vcpu_unmap':
/kisskb/src/arch/s390/kvm/../../../virt/kvm/kvm_main.c:1796: undefined reference to `memunmap'
make[1]: *** [/kisskb/src/Makefile:1052: vmlinux] Error 1
make: *** [Makefile:179: sub-make] Error 2
Command 'make -s -j 8 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_s390-defconfig_s390x-gcc8
# Build took: 0:02:37.084482