Buildresult: powerpc-fixes/corenet64_smp_defconfig+KVM/powerpc-gcc5 built on Feb 10 2023, 00:46

kisskb

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Status:	OK
Date/Time:	Feb 10 2023, 00:46
Duration:	0:03:57.428870
Builder:	blade4b
Revision:	powerpc/64s/interrupt: Fix interrupt exit race with security mitigation switch (`2ea31e2e62bbc4d11c411eeb36f1b02841dbcab1)`
Target:	powerpc-fixes/corenet64_smp_defconfig+KVM/powerpc-gcc5
Branch:	powerpc-fixes
Compiler:	powerpc-gcc5 (powerpc64-linux-gcc (GCC) 5.5.0 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:	corenet64_smp_defconfig+KVM (download)
Log:	Download original Possible warnings (1) .config:4486:warning: override: reassigning to symbol VIRTUALIZATION Full Log # git rev-parse -q --verify 2ea31e2e62bbc4d11c411eeb36f1b02841dbcab1^{commit} 2ea31e2e62bbc4d11c411eeb36f1b02841dbcab1 already have revision, skipping fetch # git checkout -q -f -B kisskb 2ea31e2e62bbc4d11c411eeb36f1b02841dbcab1 # git clean -qxdf # < git log -1 # commit 2ea31e2e62bbc4d11c411eeb36f1b02841dbcab1 # Author: Nicholas Piggin <npiggin@gmail.com> # Date: Mon Feb 6 14:22:40 2023 +1000 # # powerpc/64s/interrupt: Fix interrupt exit race with security mitigation switch # # The RFI and STF security mitigation options can flip the # interrupt_exit_not_reentrant static branch condition concurrently with # the interrupt exit code which tests that branch. # # Interrupt exit tests this condition to set MSR[EE\|RI] for exit, then # again in the case a soft-masked interrupt is found pending, to recover # the MSR so the interrupt can be replayed before attempting to exit # again. If the condition changes between these two tests, the MSR and irq # soft-mask state will become corrupted, leading to warnings and possible # crashes. For example, if the branch is initially true then false, # MSR[EE] will be 0 but PACA_IRQ_HARD_DIS clear and EE may not get # enabled, leading to warnings in irq_64.c. # # Fixes: 13799748b957 ("powerpc/64: use interrupt restart table to speed up return from interrupt") # Cc: stable@vger.kernel.org # v5.14+ # Reported-by: Sachin Sant <sachinp@linux.ibm.com> # Tested-by: Sachin Sant <sachinp@linux.ibm.com> # Signed-off-by: Nicholas Piggin <npiggin@gmail.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/20230206042240.92103-1-npiggin@gmail.com # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 2ea31e2e62bbc4d11c411eeb36f1b02841dbcab1 # < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_corenet64_smp_defconfig+KVM_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- corenet64_smp_defconfig # Added to kconfig CONFIG_KVM_E500MC=y # Added to kconfig CONFIG_VIRTUALIZATION=y # Added to kconfig CONFIG_KVM_MPIC=y # < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_corenet64_smp_defconfig+KVM_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_corenet64_smp_defconfig+KVM_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig .config:4486:warning: override: reassigning to symbol VIRTUALIZATION # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_corenet64_smp_defconfig+KVM_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- Completed OK # rm -rf /kisskb/build/powerpc-fixes_corenet64_smp_defconfig+KVM_powerpc-gcc5 # Build took: 0:03:57.428870

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