# git rev-parse -q --verify dc398a084d459f065658855454e09f2778f8c5cc^{commit} dc398a084d459f065658855454e09f2778f8c5cc already have revision, skipping fetch # git checkout -q -f -B kisskb dc398a084d459f065658855454e09f2778f8c5cc # git clean -qxdf # < git log -1 # commit dc398a084d459f065658855454e09f2778f8c5cc # Author: Nicholas Piggin # Date: Fri Oct 7 00:04:11 2022 +1000 # # powerpc/64s/interrupt: Perf NMI should not take normal exit path # # NMI interrupts should exit with EXCEPTION_RESTORE_REGS not with # interrupt_return_srr, which is what the perf NMI handler currently does. # This breaks if a PMI hits after interrupt_exit_user_prepare_main() has # switched the context tracking to user mode, then the CT_WARN_ON() in # interrupt_exit_kernel_prepare() fires because it returns to kernel with # context set to user. # # This could possibly be solved by soft-disabling PMIs in the exit path, # but that reduces our ability to profile that code. The warning could be # removed, but it's potentially useful. # # All other NMIs and soft-NMIs return using EXCEPTION_RESTORE_REGS, so # this makes perf interrupts consistent with that and seems like the best # fix. # # Signed-off-by: Nicholas Piggin # [mpe: Squash in fixups from Nick] # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/20221006140413.126443-3-npiggin@gmail.com # < /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 dc398a084d459f065658855454e09f2778f8c5cc # < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+NO_HUGETLB+4K_PAGES_powerpc-gcc12 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- ppc64_defconfig # Added to kconfig CONFIG_PPC_64K_PAGES=n # Added to kconfig CONFIG_PPC_4K_PAGES=y # Added to kconfig CONFIG_HUGETLBFS=n # < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+NO_HUGETLB+4K_PAGES_powerpc-gcc12 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+NO_HUGETLB+4K_PAGES_powerpc-gcc12 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig .config:4652:warning: override: reassigning to symbol PPC_4K_PAGES # make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+NO_HUGETLB+4K_PAGES_powerpc-gcc12 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: div64.o: missing .note.GNU-stack section implies executable stack /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: arch/powerpc/boot/dtbImage.ps3 has a LOAD segment with RWX permissions /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: opal-calls.o: missing .note.GNU-stack section implies executable stack /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: arch/powerpc/boot/zImage.maple has a LOAD segment with RWX permissions /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: opal-calls.o: missing .note.GNU-stack section implies executable stack /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: arch/powerpc/boot/zImage.epapr has a LOAD segment with RWX permissions /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: opal-calls.o: missing .note.GNU-stack section implies executable stack /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: arch/powerpc/boot/zImage.pmac has a LOAD segment with RWX permissions /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: opal-calls.o: missing .note.GNU-stack section implies executable stack /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: arch/powerpc/boot/zImage.pseries has a LOAD segment with RWX permissions Completed OK # rm -rf /kisskb/build/powerpc-fixes_ppc64_defconfig+NO_HUGETLB+4K_PAGES_powerpc-gcc12 # Build took: 0:04:02.427628