Buildresult: powerpc-next-rand/powerpc-randconfig/powerpc-gcc4.6 built on Sep 5 2019, 23:45

kisskb

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Status:	OK
Date/Time:	Sep 5 2019, 23:45
Duration:	0:01:07.363236
Builder:	ka4
Revision:	powerpc/64: Fix stacktrace on BE when function_graph is enabled (`35f7eea41dba2cdfb11be7a37eb21cf010fd3220)`
Target:	powerpc-next-rand/powerpc-randconfig/powerpc-gcc4.6
Branch:	powerpc-next-rand
Compiler:	powerpc-gcc4.6 (powerpc-linux-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	randconfig (download)
Log:	Download original Possible warnings (28) kernel/rcu/srcutree.c:140:32: warning: 'levelspread[<U95a0>]' may be used uninitialized in this function [-Wuninitialized] kernel/printk/printk.c:194:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] ipc/shm.c:1712:59: warning: 'file' may be used uninitialized in this function [-Wuninitialized] kernel/sched/core.c:2529:12: warning: 'cpu' may be used uninitialized in this function [-Wuninitialized] lib/mpi/mpicoder.c:352:8: warning: 'buff' may be used uninitialized in this function [-Wuninitialized] drivers/cpufreq/cpufreq.c:789:1: warning: the frame size of 1040 bytes is larger than 1024 bytes [-Wframe-larger-than=] fs/splice.c:1394:8: warning: 'type' may be used uninitialized in this function [-Wuninitialized] fs/splice.c:1368:8: warning: 'type' may be used uninitialized in this function [-Wuninitialized] mm/ksm.c:1409:15: warning: 'found_rmap_hlist_len' may be used uninitialized in this function [-Wuninitialized] drivers/hwspinlock/hwspinlock_core.c:345:6: warning: 'id' may be used uninitialized in this function [-Wuninitialized] include/linux/rhashtable.h:110:10: warning: 'next' may be used uninitialized in this function [-Wuninitialized] kernel/seccomp.c:917:1: warning: no return statement in function returning non-void [-Wreturn-type] drivers/video/backlight/adp8860_bl.c:578:10: warning: 'ret_val' may be used uninitialized in this function [-Wuninitialized] drivers/misc/cxl/native.c:1244:2: warning: 'ph' may be used uninitialized in this function [-Wuninitialized] drivers/misc/cxl/native.c:1244:2: warning: 'dsisr' may be used uninitialized in this function [-Wuninitialized] drivers/iio/imu/bmi160/bmi160_core.c:618:3: warning: 'pin_name' may be used uninitialized in this function [-Wuninitialized] drivers/iio/imu/bmi160/bmi160_core.c:606:29: warning: 'int_map_mask' may be used uninitialized in this function [-Wuninitialized] drivers/iio/imu/bmi160/bmi160_core.c:599:29: warning: 'int_latch_mask' may be used uninitialized in this function [-Wuninitialized] drivers/iio/imu/bmi160/bmi160_core.c:577:47: warning: 'int_out_ctrl_shift' may be used uninitialized in this function [-Wuninitialized] drivers/staging/comedi/drivers/pcl818.c:337:6: warning: 'last_chan' may be used uninitialized in this function [-Wuninitialized] drivers/staging/comedi/drivers/dt282x.c:389:5: warning: 'divider' may be used uninitialized in this function [-Wuninitialized] drivers/staging/comedi/drivers/dt282x.c:394:16: warning: 'base' may be used uninitialized in this function [-Wuninitialized] drivers/mfd/rk808.c:732:12: warning: 'rk8xx_suspend' defined but not used [-Wunused-function] drivers/mfd/rk808.c:752:12: warning: 'rk8xx_resume' defined but not used [-Wunused-function] WARNING: vmlinux.o(.text.unlikely+0x4328): Section mismatch in reference from the function .xive_spapr_disabled() to the function .init.text:.of_get_flat_dt_root() WARNING: vmlinux.o(.text.unlikely+0x4338): Section mismatch in reference from the function .xive_spapr_disabled() to the function .init.text:.of_get_flat_dt_subnode_by_name() WARNING: vmlinux.o(.text.unlikely+0x4354): Section mismatch in reference from the function .xive_spapr_disabled() to the function .init.text:.of_get_flat_dt_prop() Full Log # git rev-parse -q --verify 35f7eea41dba2cdfb11be7a37eb21cf010fd3220^{commit} 35f7eea41dba2cdfb11be7a37eb21cf010fd3220 already have revision, skipping fetch # git checkout -q -f -B kisskb 35f7eea41dba2cdfb11be7a37eb21cf010fd3220 # git clean -qxdf # < git log -1 # commit 35f7eea41dba2cdfb11be7a37eb21cf010fd3220 # Author: Michael Ellerman <mpe@ellerman.id.au> # Date: Fri Aug 23 22:29:01 2019 +1000 # # powerpc/64: Fix stacktrace on BE when function_graph is enabled # # Currently if we oops or warn while function_graph is active the stack # trace looks like: # .trace_graph_return+0xac/0x100 # .ftrace_return_to_handler+0x98/0x140 # .return_to_handler+0x20/0x40 # .return_to_handler+0x0/0x40 # .return_to_handler+0x0/0x40 # .return_to_handler+0x0/0x40 # .return_to_handler+0x0/0x40 # .return_to_handler+0x0/0x40 # .return_to_handler+0x0/0x40 # .cpu_startup_entry+0x34/0x40 # .start_secondary+0x680/0x6f0 # start_secondary_prolog+0x10/0x14 # # Notice the multiple entries that just show .return_to_handler. # # There is logic in show_stack() to detect this case and print the # traced function, but we inadvertently broke it in commit # 7d56c65a6ff9 ("powerpc/ftrace: Remove mod_return_to_handler") (2014), # because that commit accidentally removed the dereference of rth which # gets the text address from the function descriptor. Hence this is only # broken on big endian (or technically ELFv1). # # Fix it by using the proper accessor, which is ppc_function_entry(). # Result is we get a stack trace such as: # # .trace_graph_return+0x134/0x160 # .ftrace_return_to_handler+0x94/0x140 # .return_to_handler+0x20/0x40 # .return_to_handler+0x0/0x40 (.shared_cede_loop+0x48/0x130) # .return_to_handler+0x0/0x40 (.cpuidle_enter_state+0xa0/0x690) # .return_to_handler+0x0/0x40 (.cpuidle_enter+0x44/0x70) # .return_to_handler+0x0/0x40 (.call_cpuidle+0x68/0xc0) # .return_to_handler+0x0/0x40 (.do_idle+0x37c/0x400) # .return_to_handler+0x0/0x40 (.cpu_startup_entry+0x30/0x50) # .rest_init+0x224/0x348 # # Fixes: 7d56c65a6ff9 ("powerpc/ftrace: Remove mod_return_to_handler") # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Reviewed-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/20190823122901.32667-1-mpe@ellerman.id.au # < /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 35f7eea41dba2cdfb11be7a37eb21cf010fd3220 # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- randconfig KCONFIG_SEED=0x42910127 # 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 # yes \n \| make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- oldconfig yes: standard output: Broken pipe # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.6 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_nodes': /kisskb/src/kernel/rcu/srcutree.c:140:32: warning: 'levelspread[<U95a0>]' 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:194:16: warning: 'old' 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/ipc/shm.c: In function 'ksys_shmdt': /kisskb/src/ipc/shm.c:1712:59: warning: 'file' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/sched/core.c: In function 'try_to_wake_up': /kisskb/src/kernel/sched/core.c:2529:12: warning: 'cpu' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/mpi/mpicoder.c: In function 'mpi_read_raw_from_sgl': /kisskb/src/lib/mpi/mpicoder.c:352:8: warning: 'buff' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/cpufreq/cpufreq.c: In function 'store_scaling_governor': /kisskb/src/drivers/cpufreq/cpufreq.c:789:1: warning: the frame size of 1040 bytes is larger than 1024 bytes [-Wframe-larger-than=] /kisskb/src/fs/splice.c: In function '__do_compat_sys_vmsplice': /kisskb/src/fs/splice.c:1394:8: warning: 'type' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/splice.c: In function '__do_sys_vmsplice': /kisskb/src/fs/splice.c:1368:8: warning: 'type' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/mm/ksm.c: In function 'stable_node_dup': /kisskb/src/mm/ksm.c:1409:15: warning: 'found_rmap_hlist_len' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/hwspinlock/hwspinlock_core.c: In function 'of_hwspin_lock_get_id': /kisskb/src/drivers/hwspinlock/hwspinlock_core.c:345:6: warning: 'id' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/rhashtable.c: In function 'rhashtable_rehash_one': /kisskb/src/include/linux/rhashtable.h:110:10: warning: 'next' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/rhashtable.c:222:28: note: 'next' was declared here /kisskb/src/kernel/seccomp.c: In function '__seccomp_filter': /kisskb/src/kernel/seccomp.c:917:1: warning: no return statement in function returning non-void [-Wreturn-type] /kisskb/src/drivers/video/backlight/adp8860_bl.c: In function 'adp8860_bl_ambient_light_level_show': /kisskb/src/drivers/video/backlight/adp8860_bl.c:578:10: warning: 'ret_val' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/misc/cxl/native.c: In function 'native_irq_wait': /kisskb/src/drivers/misc/cxl/native.c:1244:2: warning: 'ph' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/misc/cxl/native.c:1244:2: warning: 'dsisr' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iio/imu/bmi160/bmi160_core.c: In function 'bmi160_config_pin.constprop.10': /kisskb/src/drivers/iio/imu/bmi160/bmi160_core.c:618:3: warning: 'pin_name' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iio/imu/bmi160/bmi160_core.c:606:29: warning: 'int_map_mask' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iio/imu/bmi160/bmi160_core.c:599:29: warning: 'int_latch_mask' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iio/imu/bmi160/bmi160_core.c:577:47: warning: 'int_out_ctrl_shift' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/staging/comedi/drivers/pcl818.c: In function 'pcl818_ai_cmd': /kisskb/src/drivers/staging/comedi/drivers/pcl818.c:337:6: warning: 'last_chan' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/staging/comedi/drivers/pcl818.c:347:15: note: 'last_chan' was declared here /kisskb/src/drivers/staging/comedi/drivers/dt282x.c: In function 'dt282x_ns_to_timer': /kisskb/src/drivers/staging/comedi/drivers/dt282x.c:389:5: warning: 'divider' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/staging/comedi/drivers/dt282x.c:394:16: warning: 'base' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/mfd/rk808.c:732:12: warning: 'rk8xx_suspend' defined but not used [-Wunused-function] /kisskb/src/drivers/mfd/rk808.c:752:12: warning: 'rk8xx_resume' defined but not used [-Wunused-function] WARNING: vmlinux.o(.text.unlikely+0x4328): Section mismatch in reference from the function .xive_spapr_disabled() to the function .init.text:.of_get_flat_dt_root() The function .xive_spapr_disabled() references the function __init .of_get_flat_dt_root(). This is often because .xive_spapr_disabled lacks a __init annotation or the annotation of .of_get_flat_dt_root is wrong. WARNING: vmlinux.o(.text.unlikely+0x4338): Section mismatch in reference from the function .xive_spapr_disabled() to the function .init.text:.of_get_flat_dt_subnode_by_name() The function .xive_spapr_disabled() references the function __init .of_get_flat_dt_subnode_by_name(). This is often because .xive_spapr_disabled lacks a __init annotation or the annotation of .of_get_flat_dt_subnode_by_name is wrong. WARNING: vmlinux.o(.text.unlikely+0x4354): Section mismatch in reference from the function .xive_spapr_disabled() to the function .init.text:.of_get_flat_dt_prop() The function .xive_spapr_disabled() references the function __init .of_get_flat_dt_prop(). This is often because .xive_spapr_disabled lacks a __init annotation or the annotation of .of_get_flat_dt_prop is wrong. Completed OK # rm -rf /kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.6 # Build took: 0:01:07.363236

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