Buildresult: powerpc-fixes/44x/akebono_defconfig/powerpc-gcc5 built on Apr 25 2018, 22:42

kisskb

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Status:	OK
Date/Time:	Apr 25 2018, 22:42
Duration:	0:00:35.600840
Builder:	ka4
Revision:	powerpc: Fix smp_send_stop NMI IPI handling (`ac61c1156623455c46701654abd8c99720bceea1)`
Target:	powerpc-fixes/44x/akebono_defconfig/powerpc-gcc5
Branch:	powerpc-fixes
Compiler:	powerpc-gcc5 (powerpc64-linux-gcc (GCC) 5.3.0)
Config:	44x/akebono_defconfig (download)
Log:	Download original Possible warnings (6) WARNING: modpost: Found 1 section mismatch(es). arch/powerpc/boot/akebono.dtb: Warning (pci_bridge): /plb/pciex@10100000000: node name is not "pci" or "pcie" arch/powerpc/boot/akebono.dtb: Warning (pci_bridge): /plb/pciex@20100000000: node name is not "pci" or "pcie" arch/powerpc/boot/akebono.dtb: Warning (pci_bridge): /plb/pciex@18100000000: node name is not "pci" or "pcie" arch/powerpc/boot/akebono.dtb: Warning (pci_bridge): /plb/pciex@28100000000: node name is not "pci" or "pcie" arch/powerpc/boot/akebono.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' Full Log # git rev-parse -q --verify ac61c1156623455c46701654abd8c99720bceea1^{commit} ac61c1156623455c46701654abd8c99720bceea1 already have revision, skipping fetch # git checkout -q -f -B kisskb ac61c1156623455c46701654abd8c99720bceea1 # git clean -qxdf # < git log -1 # commit ac61c1156623455c46701654abd8c99720bceea1 # Author: Nicholas Piggin <npiggin@gmail.com> # Date: Wed Apr 25 12:17:53 2018 +1000 # # powerpc: Fix smp_send_stop NMI IPI handling # # The NMI IPI handler for a receiving CPU increments nmi_ipi_busy_count # over the handler function call, which causes later smp_send_nmi_ipi() # callers to spin until the call is finished. # # The stop_this_cpu() function never returns, so the busy count is never # decremeted, which can cause the system to hang in some cases. For # example panic() will call smp_send_stop() early on which calls # stop_this_cpu() on other CPUs, then later in the reboot path, # pnv_restart() will call smp_send_stop() again, which hangs. # # Fix this by adding a special case to the stop_this_cpu() handler to # decrement the busy count, because it will never return. # # Now that the NMI/non-NMI versions of stop_this_cpu() are different, # split them out into separate functions rather than doing #ifdef tricks # to share the body between the two functions. # # Fixes: 6bed3237624e3 ("powerpc: use NMI IPI for smp_send_stop") # Reported-by: Abdul Haleem <abdhalee@linux.vnet.ibm.com> # Signed-off-by: Nicholas Piggin <npiggin@gmail.com> # [mpe: Split out the functions, tweak change log a bit] # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < git log --format=%s --max-count=1 ac61c1156623455c46701654abd8c99720bceea1 # < make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_44x_akebono_defconfig_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux- 44x/akebono_defconfig # make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_44x_akebono_defconfig_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux- WARNING: modpost: Found 1 section mismatch(es). To see full details build your kernel with: 'make CONFIG_DEBUG_SECTION_MISMATCH=y' arch/powerpc/boot/akebono.dtb: Warning (pci_bridge): /plb/pciex@10100000000: node name is not "pci" or "pcie" arch/powerpc/boot/akebono.dtb: Warning (pci_bridge): /plb/pciex@20100000000: node name is not "pci" or "pcie" arch/powerpc/boot/akebono.dtb: Warning (pci_bridge): /plb/pciex@18100000000: node name is not "pci" or "pcie" arch/powerpc/boot/akebono.dtb: Warning (pci_bridge): /plb/pciex@28100000000: node name is not "pci" or "pcie" arch/powerpc/boot/akebono.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' Completed OK # rm -rf /kisskb/build/powerpc-fixes_44x_akebono_defconfig_powerpc-5.3 # Build took: 0:00:35.600840

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