# git rev-parse -q --verify 4399efc3f2f04ad8e6948461795de04ed1358402^{commit} 4399efc3f2f04ad8e6948461795de04ed1358402 already have revision, skipping fetch # git checkout -q -f -B kisskb 4399efc3f2f04ad8e6948461795de04ed1358402 # git clean -qxdf # < git log -1 # commit 4399efc3f2f04ad8e6948461795de04ed1358402 # Author: Gustavo Luiz Duarte # Date: Mon Feb 3 13:09:06 2020 -0300 # # selftests/powerpc: Don't rely on segfault to rerun the test # # The test case tm-signal-context-force-tm expects a segfault to happen on # returning from signal handler, and then does a setcontext() to run the test # again. However, the test doesn't always segfault, causing the test to run a # single time. # # This patch fixes the test by putting it within a loop and jumping, via # setcontext, just prior to the loop in case it segfaults. This way we get the # desired behavior (run the test COUNT_MAX times) regardless if it segfaults or # not. This also reduces the use of setcontext for control flow logic, keeping it # only in the segfault handler. # # Also, since 'count' is changed within the signal handler, it is declared as # volatile to prevent any compiler optimization getting confused with # asynchronous changes. # # Signed-off-by: Gustavo Luiz Duarte # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/20200203160906.24482-3-gustavold@linux.ibm.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 4399efc3f2f04ad8e6948461795de04ed1358402 # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc44x_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- ppc44x_defconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc44x_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/arch/powerpc/boot/dts/virtex440-ml510.dts:335.37-439.6: Warning (pci_bridge): /plb@0/plbv46-pci@85e00000: node name is not "pci" or "pcie" arch/powerpc/boot/dts/virtex440-ml510.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/katmai.dts:322.26-361.5: Warning (pci_bridge): /plb/pciex@d00000000: node name is not "pci" or "pcie" /kisskb/src/arch/powerpc/boot/dts/katmai.dts:363.26-402.5: Warning (pci_bridge): /plb/pciex@d20000000: node name is not "pci" or "pcie" /kisskb/src/arch/powerpc/boot/dts/katmai.dts:404.26-443.5: Warning (pci_bridge): /plb/pciex@d40000000: node name is not "pci" or "pcie" arch/powerpc/boot/dts/katmai.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' INFO: Uncompressed kernel (size 0x5962e0) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x5962e0) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x5962e0) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x5962e0) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x5962e0) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x5962e0) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x5962e0) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x5962e0) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x5962e0) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x585bf8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x5962e0) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:59:25 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2849803 Bytes = 2783.01 KiB = 2.72 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:59:25 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2882239 Bytes = 2814.69 KiB = 2.75 MiB Load Address: 00600000 Entry Point: 006001b8 INFO: Uncompressed kernel (size 0x5962e0) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:59:26 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2881820 Bytes = 2814.28 KiB = 2.75 MiB Load Address: 00600000 Entry Point: 00601534 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:59:26 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2882379 Bytes = 2814.82 KiB = 2.75 MiB Load Address: 00600000 Entry Point: 006000c4 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:59:26 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2882478 Bytes = 2814.92 KiB = 2.75 MiB Load Address: 00600000 Entry Point: 00601514 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:59:26 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2882337 Bytes = 2814.78 KiB = 2.75 MiB Load Address: 00600000 Entry Point: 00601534 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:59:26 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2882273 Bytes = 2814.72 KiB = 2.75 MiB Load Address: 00600000 Entry Point: 00601524 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:59:26 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2882497 Bytes = 2814.94 KiB = 2.75 MiB Load Address: 00600000 Entry Point: 0060152c Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:59:26 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2882308 Bytes = 2814.75 KiB = 2.75 MiB Load Address: 00600000 Entry Point: 00601544 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:59:26 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2882445 Bytes = 2814.89 KiB = 2.75 MiB Load Address: 00600000 Entry Point: 00601534 Completed OK # rm -rf /kisskb/build/powerpc-fixes_ppc44x_defconfig_powerpc-gcc5 # Build took: 0:00:52.980234