# 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/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version # < git log --format=%s --max-count=1 4399efc3f2f04ad8e6948461795de04ed1358402 # < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- mpc85xx_defconfig # make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page': /kisskb/src/mm/hugetlb.c:1426:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/ext4/extents.c: In function 'ext4_convert_unwritten_io_end_vec': /kisskb/src/fs/ext4/extents.c:5054:23: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/soc/codecs/wm8960.c: In function 'wm8960_configure_clocking': /kisskb/src/sound/soc/codecs/wm8960.c:800:70: warning: 'j' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/soc/codecs/wm8960.c:797:68: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2591:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write': /kisskb/src/drivers/base/regmap/regmap.c:1852:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:338:21: note: 'pdeo' was declared here /kisskb/src/fs/udf/unicode.c: In function 'udf_name_conv_char': /kisskb/src/fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c: In function 'allocate_bd': /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:139:6: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq': /kisskb/src/drivers/tty/serial/8250/8250_core.c:248:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:228:19: note: 'i' was declared here /kisskb/src/drivers/usb/core/devio.c: In function 'async_completed': /kisskb/src/drivers/usb/core/devio.c:625:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized] /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 0xc8c64c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8c64c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8c64c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8c64c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8c64c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8c64c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8c64c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8c64c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8c64c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8c64c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8c64c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8c64c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8c64c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8c64c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8c64c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc7beb4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:25:15 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6065408 Bytes = 5923.25 KiB = 5.78 MiB Load Address: 00d00000 Entry Point: 00d002a8 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:25:15 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6027677 Bytes = 5886.40 KiB = 5.75 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:25:15 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6065463 Bytes = 5923.30 KiB = 5.78 MiB Load Address: 00d00000 Entry Point: 00d002a8 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:25:15 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6065163 Bytes = 5923.01 KiB = 5.78 MiB Load Address: 00d00000 Entry Point: 00d002e8 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:25:15 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6066893 Bytes = 5924.70 KiB = 5.79 MiB Load Address: 00d00000 Entry Point: 00d002a8 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:25:15 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6065555 Bytes = 5923.39 KiB = 5.78 MiB Load Address: 00d00000 Entry Point: 00d002a8 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:25:15 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6065839 Bytes = 5923.67 KiB = 5.78 MiB Load Address: 00d00000 Entry Point: 00d002a8 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:25:15 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6065170 Bytes = 5923.02 KiB = 5.78 MiB Load Address: 00d00000 Entry Point: 00d002a8 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:25:15 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6065551 Bytes = 5923.39 KiB = 5.78 MiB Load Address: 00d00000 Entry Point: 00d002a8 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:25:15 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6065556 Bytes = 5923.39 KiB = 5.78 MiB Load Address: 00d00000 Entry Point: 00d002e8 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:25:15 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6065582 Bytes = 5923.42 KiB = 5.78 MiB Load Address: 00d00000 Entry Point: 00d002e8 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:25:15 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6065258 Bytes = 5923.10 KiB = 5.78 MiB Load Address: 00d00000 Entry Point: 00d002e8 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:25:15 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6065275 Bytes = 5923.12 KiB = 5.78 MiB Load Address: 00d00000 Entry Point: 00d002a8 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:25:15 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6065259 Bytes = 5923.10 KiB = 5.78 MiB Load Address: 00d00000 Entry Point: 00d002e8 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:25:15 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6065507 Bytes = 5923.35 KiB = 5.78 MiB Load Address: 00d00000 Entry Point: 00d002a8 Image Name: Linux-5.5.0-g4399efc3f2f0 Created: Wed Feb 5 01:25:15 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6066839 Bytes = 5924.65 KiB = 5.79 MiB Load Address: 00d00000 Entry Point: 00d002a8 Completed OK # rm -rf /kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc4.6 # Build took: 0:02:03.848790