# git rev-parse -q --verify 7bcdcd71f432b553a084a88130800196af36e3b1^{commit} 7bcdcd71f432b553a084a88130800196af36e3b1 already have revision, skipping fetch # git checkout -q -f -B kisskb 7bcdcd71f432b553a084a88130800196af36e3b1 # git clean -qxdf # < git log -1 # commit 7bcdcd71f432b553a084a88130800196af36e3b1 # Author: Feng Tang # Date: Thu May 6 15:34:59 2021 +0800 # # Makefile: extend 32B aligned debug option to 64B aligned # # Commit 09c60546f04f ("./Makefile: add debug option to enable # function aligned on 32 bytes") was introduced to help debugging # strange kernel performance changes caused by code alignment # change. # # Recently we found 2 similar cases [1][2] caused by code-alignment # changes, which can only be identified by forcing 64 bytes aligned # for all functions. # # Originally, 32 bytes was used mainly for not wasting too much # text space, but this option is only for debug anyway where text # space is not a big concern. So extend the alignment to 64 bytes # to cover more similar cases. # # [1].https://lore.kernel.org/lkml/20210427090013.GG32408@xsang-OptiPlex-9020/ # [2].https://lore.kernel.org/lkml/20210420030837.GB31773@xsang-OptiPlex-9020/ # Signed-off-by: Feng Tang # Signed-off-by: Masahiro Yamada # < /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 7bcdcd71f432b553a084a88130800196af36e3b1 # < make -s -j 8 ARCH=powerpc O=/kisskb/build/kbuild_mpc85xx_smp_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- mpc85xx_smp_defconfig # < make -s -j 8 ARCH=powerpc O=/kisskb/build/kbuild_mpc85xx_smp_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 8 ARCH=powerpc O=/kisskb/build/kbuild_mpc85xx_smp_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 8 ARCH=powerpc O=/kisskb/build/kbuild_mpc85xx_smp_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/net/sched/sch_frag.c: In function 'sch_fragment': /kisskb/src/net/sched/sch_frag.c:93:10: warning: missing braces around initializer [-Wmissing-braces] struct rtable sch_frag_rt = { 0 }; ^ /kisskb/src/net/sched/sch_frag.c:93:10: warning: (near initialization for 'sch_frag_rt.dst') [-Wmissing-braces] In file included from /kisskb/src/include/linux/kernel.h:11:0, from /kisskb/src/include/linux/list.h:9, from /kisskb/src/include/linux/module.h:12, from /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:15: /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c: In function 'allocate_bd': /kisskb/src/include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) ^ /kisskb/src/include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:139:6: note: in expansion of macro 'IS_ERR_VALUE' if (IS_ERR_VALUE(fep->ring_mem_addr)) ^ /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8541cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8555cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) INFO: Uncompressed kernel (size 0xe21390) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe21390) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe21390) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe21390) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe21390) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe21390) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe21390) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe10c64) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) Image Name: Linux-5.13.0-rc2-g7bcdcd71f432 Created: Mon May 17 14:56:10 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6887981 Bytes = 6726.54 KiB = 6.57 MiB Load Address: 00f00000 Entry Point: 00f00314 Image Name: Linux-5.13.0-rc2-g7bcdcd71f432 Created: Mon May 17 14:56:10 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6857218 Bytes = 6696.50 KiB = 6.54 MiB Load Address: 00000000 Entry Point: 00000000 INFO: Uncompressed kernel (size 0xe21390) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe21390) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) Image Name: Linux-5.13.0-rc2-g7bcdcd71f432 Created: Mon May 17 14:56:11 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6888688 Bytes = 6727.23 KiB = 6.57 MiB Load Address: 00f00000 Entry Point: 00f002a4 INFO: Uncompressed kernel (size 0xe21390) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) Image Name: Linux-5.13.0-rc2-g7bcdcd71f432 Created: Mon May 17 14:56:11 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6887913 Bytes = 6726.48 KiB = 6.57 MiB Load Address: 00f00000 Entry Point: 00f002a4 Image Name: Linux-5.13.0-rc2-g7bcdcd71f432 Created: Mon May 17 14:56:11 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6887441 Bytes = 6726.02 KiB = 6.57 MiB Load Address: 00f00000 Entry Point: 00f002a4 INFO: Uncompressed kernel (size 0xe21390) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe21390) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) Image Name: Linux-5.13.0-rc2-g7bcdcd71f432 Created: Mon May 17 14:56:11 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6889061 Bytes = 6727.60 KiB = 6.57 MiB Load Address: 00f00000 Entry Point: 00f002a4 Image Name: Linux-5.13.0-rc2-g7bcdcd71f432 Created: Mon May 17 14:56:11 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6887915 Bytes = 6726.48 KiB = 6.57 MiB Load Address: 00f00000 Entry Point: 00f002a4 INFO: Uncompressed kernel (size 0xe21390) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe21390) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) Image Name: Linux-5.13.0-rc2-g7bcdcd71f432 Created: Mon May 17 14:56:11 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6889618 Bytes = 6728.14 KiB = 6.57 MiB Load Address: 00f00000 Entry Point: 00f002a4 INFO: Uncompressed kernel (size 0xe21390) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) Image Name: Linux-5.13.0-rc2-g7bcdcd71f432 Created: Mon May 17 14:56:14 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6887405 Bytes = 6725.98 KiB = 6.57 MiB Load Address: 00f00000 Entry Point: 00f002a4 Image Name: Linux-5.13.0-rc2-g7bcdcd71f432 Created: Mon May 17 14:56:14 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6889818 Bytes = 6728.34 KiB = 6.57 MiB Load Address: 00f00000 Entry Point: 00f002a4 Image Name: Linux-5.13.0-rc2-g7bcdcd71f432 Created: Mon May 17 14:56:16 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6887728 Bytes = 6726.30 KiB = 6.57 MiB Load Address: 00f00000 Entry Point: 00f00314 Image Name: Linux-5.13.0-rc2-g7bcdcd71f432 Created: Mon May 17 14:56:17 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6888239 Bytes = 6726.80 KiB = 6.57 MiB Load Address: 00f00000 Entry Point: 00f002a4 Image Name: Linux-5.13.0-rc2-g7bcdcd71f432 Created: Mon May 17 14:56:17 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6887729 Bytes = 6726.30 KiB = 6.57 MiB Load Address: 00f00000 Entry Point: 00f00314 Image Name: Linux-5.13.0-rc2-g7bcdcd71f432 Created: Mon May 17 14:56:17 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6887803 Bytes = 6726.37 KiB = 6.57 MiB Load Address: 00f00000 Entry Point: 00f00314 Image Name: Linux-5.13.0-rc2-g7bcdcd71f432 Created: Mon May 17 14:56:17 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6887945 Bytes = 6726.51 KiB = 6.57 MiB Load Address: 00f00000 Entry Point: 00f002a4 Image Name: Linux-5.13.0-rc2-g7bcdcd71f432 Created: Mon May 17 14:56:17 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6887959 Bytes = 6726.52 KiB = 6.57 MiB Load Address: 00f00000 Entry Point: 00f00314 Completed OK # rm -rf /kisskb/build/kbuild_mpc85xx_smp_defconfig_powerpc-gcc4.9 # Build took: 0:03:24.872407