# git rev-parse -q --verify b7a2d47af3a0d58527e3a53ab85f597cd495b7ce^{commit} b7a2d47af3a0d58527e3a53ab85f597cd495b7ce already have revision, skipping fetch # git checkout -q -f -B kisskb b7a2d47af3a0d58527e3a53ab85f597cd495b7ce # git clean -qxdf # < git log -1 # commit b7a2d47af3a0d58527e3a53ab85f597cd495b7ce # Author: Jordan Niethe # Date: Mon Feb 8 14:29:57 2021 +1100 # # selftests/powerpc: Test for spurious kernel memory faults on radix # # Previously when mapping kernel memory on radix, no ptesync was # included which would periodically lead to unhandled spurious faults. # Mapping kernel memory is used when code patching with Strict RWX # enabled. As suggested by Chris Riedl, turning ftrace on and off does a # large amount of code patching so is a convenient way to see this kind # of fault. # # Add a selftest to try and trigger this kind of a spurious fault. It # tests for 30 seconds which is usually long enough for the issue to # show up. # # Signed-off-by: Jordan Niethe # [mpe: Rename it to better reflect what it does, rather than the symptom] # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/20210208032957.1232102-2-jniethe5@gmail.com # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 b7a2d47af3a0d58527e3a53ab85f597cd495b7ce # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- randconfig KCONFIG_SEED=0x9F3AB96A # Added to kconfig CONFIG_STANDALONE=y # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_CPU_BIG_ENDIAN=y # Added to kconfig CONFIG_PPC64=y # Added to kconfig CONFIG_PPC_DISABLE_WERROR=y # Added to kconfig CONFIG_SECTION_MISMATCH_WARN_ONLY=y # Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y # Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig CONFIG_LD_HEAD_STUB_CATCH=y # Added to kconfig CONFIG_TRIM_UNUSED_KSYMS=n # Added to kconfig CONFIG_UBSAN=n # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig .config:8494:warning: override: reassigning to symbol STANDALONE .config:8500:warning: override: reassigning to symbol SECTION_MISMATCH_WARN_ONLY .config:8501:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD .config:8506:warning: override: reassigning to symbol UBSAN # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/drivers/misc/habanalabs/common/habanalabs_ioctl.c: In function 'pll_frequency_info': /kisskb/src/drivers/misc/habanalabs/common/habanalabs_ioctl.c:409:9: warning: missing braces around initializer [-Wmissing-braces] struct hl_pll_frequency_info freq_info = {0}; ^ /kisskb/src/drivers/misc/habanalabs/common/habanalabs_ioctl.c:409:9: warning: (near initialization for 'freq_info.output') [-Wmissing-braces] /kisskb/src/fs/btrfs/tree-checker.c: In function 'check_root_item': /kisskb/src/fs/btrfs/tree-checker.c:1064:9: warning: missing braces around initializer [-Wmissing-braces] struct btrfs_root_item ri = { 0 }; ^ /kisskb/src/fs/btrfs/tree-checker.c:1064:9: warning: (near initialization for 'ri.inode') [-Wmissing-braces] /kisskb/src/drivers/net/ethernet/chelsio/cxgb4/sge.c: In function 'cxgb4_write_partial_sgl': /kisskb/src/drivers/net/ethernet/chelsio/cxgb4/sge.c:910:9: warning: missing braces around initializer [-Wmissing-braces] struct ulptx_sge_pair buf[MAX_SKB_FRAGS / 2 + 1] = {0}, *to; ^ /kisskb/src/drivers/net/ethernet/chelsio/cxgb4/sge.c:910:9: warning: (near initialization for 'buf[0]') [-Wmissing-braces] /kisskb/src/drivers/net/ethernet/mscc/ocelot_vcap.c: In function 'is1_entry_set': /kisskb/src/drivers/net/ethernet/mscc/ocelot_vcap.c:755:11: warning: missing braces around initializer [-Wmissing-braces] struct ocelot_vcap_u16 etype = {0}; ^ /kisskb/src/drivers/net/ethernet/mscc/ocelot_vcap.c:755:11: warning: (near initialization for 'etype.value') [-Wmissing-braces] /kisskb/src/drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/navi10_ppt.c: In function 'navi10_get_gpu_metrics': /kisskb/src/drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/navi10_ppt.c:2285:2: warning: missing braces around initializer [-Wmissing-braces] SmuMetrics_NV12_t nv12_metrics = { 0 }; ^ /kisskb/src/drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/navi10_ppt.c:2285:2: warning: (near initialization for 'nv12_metrics.CurrClock') [-Wmissing-braces] /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c: In function 'rvu_npc_install_ucast_entry': /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c:604:9: warning: missing braces around initializer [-Wmissing-braces] struct npc_install_flow_req req = { 0 }; ^ /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c:604:9: warning: (near initialization for 'req.hdr') [-Wmissing-braces] /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c:605:9: warning: missing braces around initializer [-Wmissing-braces] struct npc_install_flow_rsp rsp = { 0 }; ^ /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c:605:9: warning: (near initialization for 'rsp.hdr') [-Wmissing-braces] /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c: In function 'rvu_mcam_remove_counter_from_rule': /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c:835:9: warning: missing braces around initializer [-Wmissing-braces] struct npc_mcam_oper_counter_req free_req = { 0 }; ^ /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c:835:9: warning: (near initialization for 'free_req.hdr') [-Wmissing-braces] /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c: In function 'rvu_mcam_add_counter_to_rule': /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c:852:9: warning: missing braces around initializer [-Wmissing-braces] struct npc_mcam_alloc_counter_req cntr_req = { 0 }; ^ /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c:852:9: warning: (near initialization for 'cntr_req.hdr') [-Wmissing-braces] /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c:853:9: warning: missing braces around initializer [-Wmissing-braces] struct npc_mcam_alloc_counter_rsp cntr_rsp = { 0 }; ^ /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c:853:9: warning: (near initialization for 'cntr_rsp.hdr') [-Wmissing-braces] /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c: In function 'npc_install_flow': /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c:946:9: warning: missing braces around initializer [-Wmissing-braces] struct npc_mcam_write_entry_req write_req = { 0 }; ^ /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c:946:9: warning: (near initialization for 'write_req.hdr') [-Wmissing-braces] /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c:948:9: warning: missing braces around initializer [-Wmissing-braces] struct rvu_npc_mcam_rule dummy = { 0 }; ^ /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c:948:9: warning: (near initialization for 'dummy.packet') [-Wmissing-braces] /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c: In function 'npc_delete_flow': /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c:1172:9: warning: missing braces around initializer [-Wmissing-braces] struct npc_mcam_ena_dis_entry_req dis_req = { 0 }; ^ /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c:1172:9: warning: (near initialization for 'dis_req.hdr') [-Wmissing-braces] /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c: In function 'npc_update_dmac_value': /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c:1237:9: warning: missing braces around initializer [-Wmissing-braces] struct npc_mcam_write_entry_req write_req = { 0 }; ^ /kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c:1237:9: warning: (near initialization for 'write_req.hdr') [-Wmissing-braces] drivers/net/ethernet/freescale/enetc/enetc_ethtool.o: In function `.enetc_get_ts_info': enetc_ethtool.c:(.text+0x372): relocation truncated to fit: R_PPC64_TOC16_HA against undefined symbol `enetc_phc_index' enetc_ethtool.c:(.text+0x382): relocation truncated to fit: R_PPC64_TOC16_HA against undefined symbol `enetc_phc_index' make[1]: *** [/kisskb/src/Makefile:1170: vmlinux] Error 1 make: *** [Makefile:185: __sub-make] Error 2 Command 'make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- ' returned non-zero exit status 2 # rm -rf /kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.9 # Build took: 0:05:48.777431