# git rev-parse -q --verify 0bdcfa182506526fbe4e088ff9ca86a31b81828d^{commit}
0bdcfa182506526fbe4e088ff9ca86a31b81828d
already have revision, skipping fetch
# git checkout -q -f -B kisskb 0bdcfa182506526fbe4e088ff9ca86a31b81828d
# git clean -qxdf
# < git log -1
# commit 0bdcfa182506526fbe4e088ff9ca86a31b81828d
# Author: Nicholas Piggin <npiggin@gmail.com>
# Date:   Mon Jun 15 16:12:47 2020 +1000
# 
#     powerpc/64s: Fix KVM interrupt using wrong save area
#     
#     The CTR register reload in the KVM interrupt path used the wrong save
#     area for SLB (and NMI) interrupts.
#     
#     Fixes: 9600f261acaa ("powerpc/64s/exception: Move KVM test to common code")
#     Cc: stable@vger.kernel.org # v5.7+
#     Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de>
#     Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
#     Tested-by: Christian Zigotzky <chzigotzky@xenosoft.de>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20200615061247.1310763-1-npiggin@gmail.com
# < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 0bdcfa182506526fbe4e088ff9ca86a31b81828d
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+NO_RADIX_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ppc64_defconfig
# Added to kconfig CONFIG_PPC_RADIX_MMU=n
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+NO_RADIX_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+NO_RADIX_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+NO_RADIX_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: arch/powerpc/platforms/pseries/lpar.o:(.toc+0x0): undefined reference to `mmu_pid_bits'
make[1]: *** [/kisskb/src/Makefile:1139: vmlinux] Error 1
make: *** [Makefile:185: __sub-make] Error 2
Command 'make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+NO_RADIX_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/powerpc-fixes_ppc64_defconfig+NO_RADIX_powerpc-gcc9
# Build took: 0:03:49.146494