# git rev-parse -q --verify 78807804b0854ecb7dc6906e379fc688aca36456^{commit}
78807804b0854ecb7dc6906e379fc688aca36456
already have revision, skipping fetch
# git checkout -q -f -B kisskb 78807804b0854ecb7dc6906e379fc688aca36456
# git clean -qxdf
# < git log -1
# commit 78807804b0854ecb7dc6906e379fc688aca36456
# Author: Sandipan Das <sandipan@linux.ibm.com>
# Date:   Thu Jul 16 16:33:47 2020 +0530
# 
#     selftests/powerpc: Add test for pkey siginfo verification
#     
#     Commit c46241a370a61 ("powerpc/pkeys: Check vma before
#     returning key fault error to the user") fixes a bug which
#     causes the kernel to set the wrong pkey in siginfo when a
#     pkey fault occurs after two competing threads that have
#     allocated different pkeys, one fully permissive and the
#     other restrictive, attempt to protect a common page at the
#     same time. This adds a test to detect the bug.
#     
#     Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/af137a935684955a60f13de2eb4ca358284f3d7c.1594897099.git.sandipan@linux.ibm.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 78807804b0854ecb7dc6906e379fc688aca36456
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  randconfig
KCONFIG_SEED=0x661F5872
# Added to kconfig CONFIG_STANDALONE=y
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_CPU_BIG_ENDIAN=y
# Added to kconfig CONFIG_PPC64=y
# Added to kconfig CONFIG_PPC_DISABLE_WERROR=y
# Added to kconfig CONFIG_SECTION_MISMATCH_WARN_ONLY=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_LD_HEAD_STUB_CATCH=y
# Added to kconfig CONFIG_TRIM_UNUSED_KSYMS=n
# Added to kconfig CONFIG_UBSAN=n
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_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-next-rand_powerpc-randconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
.config:4547:warning: override: reassigning to symbol PPC_DISABLE_WERROR
.config:4548:warning: override: reassigning to symbol SECTION_MISMATCH_WARN_ONLY
.config:4549:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD
.config:4552:warning: override: reassigning to symbol LD_HEAD_STUB_CATCH
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
INFO: Uncompressed kernel (size 0x355c810) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x3600000)
Image Name:   Linux-5.8.0-rc2-g78807804b085
Created:      Mon Jul 27 05:39:22 2020
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    19457748 Bytes = 19001.71 KiB = 18.56 MiB
Load Address: 00000000
Entry Point:  00000000
Completed OK
# rm -rf /kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc9
# Build took: 0:06:03.502564