# git rev-parse -q --verify 0f52b3a00c789569d7ed822b5a6b30f59a8d4393^{commit} 0f52b3a00c789569d7ed822b5a6b30f59a8d4393 already have revision, skipping fetch # git checkout -q -f -B kisskb 0f52b3a00c789569d7ed822b5a6b30f59a8d4393 # git clean -qxdf # < git log -1 # commit 0f52b3a00c789569d7ed822b5a6b30f59a8d4393 # Author: Mahesh Salgaonkar # Date: Thu Aug 23 10:26:08 2018 +0530 # # powerpc/mce: Fix SLB rebolting during MCE recovery path. # # The commit e7e81847478 ("powerpc/64s: move machine check SLB flushing # to mm/slb.c") introduced a bug in reloading bolted SLB entries. Unused # bolted entries are stored with .esid=0 in the slb_shadow area, and # that value is now used directly as the RB input to slbmte, which means # the RB[52:63] index field is set to 0, which causes SLB entry 0 to be # cleared. # # Fix this by storing the index bits in the unused bolted entries, which # directs the slbmte to the right place. # # The SLB shadow area is also used by the hypervisor, but PAPR is okay # with that, from LoPAPR v1.1, 14.11.1.3 SLB Shadow Buffer: # # Note: SLB is filled sequentially starting at index 0 # from the shadow buffer ignoring the contents of # RB field bits 52-63 # # Fixes: e7e81847478b ("powerpc/64s: move machine check SLB flushing to mm/slb.c") # Signed-off-by: Mahesh Salgaonkar # Signed-off-by: Nicholas Piggin # Reviewed-by: Nicholas Piggin # Signed-off-by: Michael Ellerman # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < git log --format=%s --max-count=1 0f52b3a00c789569d7ed822b5a6b30f59a8d4393 # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_iss476-smp_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- 44x/iss476-smp_defconfig WARNING: unmet direct dependencies detected for HOTPLUG_CPU Depends on [n]: SMP [=y] && (PPC_PSERIES [=n] || PPC_PMAC [=n] || PPC_POWERNV [=n] || FSL_SOC_BOOKE [=n]) Selected by [y]: - PM_SLEEP_SMP [=y] && SMP [=y] && (ARCH_SUSPEND_POSSIBLE [=y] || ARCH_HIBERNATION_POSSIBLE [=y]) && PM_SLEEP [=y] WARNING: unmet direct dependencies detected for HOTPLUG_CPU Depends on [n]: SMP [=y] && (PPC_PSERIES [=n] || PPC_PMAC [=n] || PPC_POWERNV [=n] || FSL_SOC_BOOKE [=n]) Selected by [y]: - PM_SLEEP_SMP [=y] && SMP [=y] && (ARCH_SUSPEND_POSSIBLE [=y] || ARCH_HIBERNATION_POSSIBLE [=y]) && PM_SLEEP [=y] # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_iss476-smp_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- WARNING: unmet direct dependencies detected for HOTPLUG_CPU Depends on [n]: SMP [=y] && (PPC_PSERIES [=n] || PPC_PMAC [=n] || PPC_POWERNV [=n] || FSL_SOC_BOOKE [=n]) Selected by [y]: - PM_SLEEP_SMP [=y] && SMP [=y] && (ARCH_SUSPEND_POSSIBLE [=y] || ARCH_HIBERNATION_POSSIBLE [=y]) && PM_SLEEP [=y] WARNING: unmet direct dependencies detected for HOTPLUG_CPU Depends on [n]: SMP [=y] && (PPC_PSERIES [=n] || PPC_PMAC [=n] || PPC_POWERNV [=n] || FSL_SOC_BOOKE [=n]) Selected by [y]: - PM_SLEEP_SMP [=y] && SMP [=y] && (ARCH_SUSPEND_POSSIBLE [=y] || ARCH_HIBERNATION_POSSIBLE [=y]) && PM_SLEEP [=y] /kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter. /kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter. INFO: Uncompressed kernel (size 0x5cafb8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x5cafb8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) Completed OK # rm -rf /kisskb/build/powerpc-next_44x_iss476-smp_defconfig_powerpc-gcc5 # Build took: 0:00:26.889250