Buildresult: powerpc-fixes/85xx/xes_mpc85xx_defconfig/powerpc-gcc4.6 built on Nov 15 2018, 20:09

kisskb

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Status:	OK
Date/Time:	Nov 15 2018, 20:09
Duration:	0:00:59.647409
Builder:	ka3
Revision:	powerpc/64: Fix kernel stack 16-byte alignment (`66f93c5a02d5ba6ef17fef459143961382593212)`
Target:	powerpc-fixes/85xx/xes_mpc85xx_defconfig/powerpc-gcc4.6
Branch:	powerpc-fixes
Compiler:	powerpc-gcc4.6 (powerpc-linux-gcc (GCC) 4.6.3)
Config:	85xx/xes_mpc85xx_defconfig (download)
Log:	Download original Possible warnings (9) kernel/rcu/srcutree.c:152:32: warning: 'levelspread[<U1960>]' may be used uninitialized in this function [-Wuninitialized] kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:2594:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:1855:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized] drivers/tty/serial/8250/8250_core.c:247:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] drivers/mtd/nand/raw/fsl_upm.c:69:20: warning: unused variable 'mtd' [-Wunused-variable] Full Log # git rev-parse -q --verify 66f93c5a02d5ba6ef17fef459143961382593212^{commit} 66f93c5a02d5ba6ef17fef459143961382593212 already have revision, skipping fetch # git checkout -q -f -B kisskb 66f93c5a02d5ba6ef17fef459143961382593212 # git clean -qxdf # < git log -1 # commit 66f93c5a02d5ba6ef17fef459143961382593212 # Author: Nicholas Piggin <npiggin@gmail.com> # Date: Thu Nov 15 12:34:27 2018 +1000 # # powerpc/64: Fix kernel stack 16-byte alignment # # Commit 4c2de74cc869 ("powerpc/64: Interrupts save PPR on stack rather # than thread_struct") changed sizeof(struct pt_regs) % 16 from 0 to 8, # which causes the interrupt frame allocation on kernel entry to put the # kernel stack out of alignment. # # Quadword (16-byte) alignment for the stack is required by both the # 64-bit v1 ABI (v1.9 § 3.2.2) and the 64-bit v2 ABI (v1.1 § 2.2.2.1). # # Add a pad field to fix alignment, and add a BUILD_BUG_ON to catch this # in future. # # Fixes: 4c2de74cc869 ("powerpc/64: Interrupts save PPR on stack rather than thread_struct") # Signed-off-by: Nicholas Piggin <npiggin@gmail.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < git log --format=%s --max-count=1 66f93c5a02d5ba6ef17fef459143961382593212 # < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_85xx_xes_mpc85xx_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- 85xx/xes_mpc85xx_defconfig # make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_85xx_xes_mpc85xx_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields': /kisskb/src/kernel/rcu/srcutree.c:152:32: warning: 'levelspread[<U1960>]' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/rcu/srcutree.c:100:6: note: 'levelspread[<U1960>]' was declared here /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:186:16: warning: 'old' 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:2594:6: 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:1855:6: 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:341:21: note: 'pdeo' was declared here /kisskb/src/drivers/i2c/i2c-core-base.c: In function 'i2c_generic_scl_recovery': /kisskb/src/drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /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/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq': /kisskb/src/drivers/tty/serial/8250/8250_core.c:247:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:227:19: note: 'i' was declared here /kisskb/src/drivers/mtd/nand/raw/fsl_upm.c: In function 'fun_wait_rnb': /kisskb/src/drivers/mtd/nand/raw/fsl_upm.c:69:20: warning: unused variable 'mtd' [-Wunused-variable] INFO: Uncompressed kernel (size 0x7d8dd0) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x800000) Image Name: Linux-4.20.0-rc1-g66f93c5a02d5 Created: Thu Nov 15 20:10:50 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4059683 Bytes = 3964.53 KiB = 3.87 MiB Load Address: 00000000 Entry Point: 00000000 Completed OK # rm -rf /kisskb/build/powerpc-fixes_85xx_xes_mpc85xx_defconfig_powerpc # Build took: 0:00:59.647409

© Michael Ellerman 2006-2018.