# git rev-parse -q --verify be65e2595b4c1fbeceba336d8ee83406726b1d8d^{commit} be65e2595b4c1fbeceba336d8ee83406726b1d8d already have revision, skipping fetch # git checkout -q -f -B kisskb be65e2595b4c1fbeceba336d8ee83406726b1d8d # git clean -qxdf # < git log -1 # commit be65e2595b4c1fbeceba336d8ee83406726b1d8d # Merge: 5404525b98c2 d1c392c9e2a3 # Author: Linus Torvalds # Date: Thu Sep 6 09:06:49 2018 -0700 # # Merge tag 'trace-v4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace # # Pull tracing fixes from Steven Rostedt: # "This fixes two annoying bugs: # # - The first one is a side effect caused by using SRCU for rcuidle # tracepoints. It seems that the perf was depending on the rcuidle # tracepoints to make RCU watch when it wasn't. # # The real fix will be to have perf use SRCU instead of depending on # RCU watching, but that can't be done until SRCU is safe to use in # NMI context (Paul's working on that). # # - The second bug fix is for a bug that's been periodically making my # tests fail randomly for some time. I haven't had time to track it # down, but finally have. It has to do with stressing NMIs (via perf) # while enabling or disabling ftrace function handling with lockdep # enabled. # # If an interrupt happens and just as it returns, it sets lockdep # back to "interrupts enabled" but before it returns an NMI is # triggered, and if this happens while printk_nmi_enter has a # breakpoint attached to it (because ftrace is converting it to or # from nop to call fentry), the breakpoint trap also calls into # lockdep, and since returning from the NMI to a interrupt handler, # interrupts were disabled when the NMI went off, lockdep keeps its # state as interrupts disabled when it returns back from the # interrupt handler where interrupts are enabled. # # This causes lockdep_assert_irqs_enabled() to trigger a false # positive" # # * tag 'trace-v4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: # printk/tracing: Do not trace printk_nmi_enter() # tracing: Add back in rcu_irq_enter/exit_irqson() for rcuidle tracepoints # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < git log --format=%s --max-count=1 be65e2595b4c1fbeceba336d8ee83406726b1d8d # < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- randconfig KCONFIG_SEED=0xCD23B530 # 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 # yes \n | make -s -j 48 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- oldconfig yes: standard output: Broken pipe # make -s -j 48 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/scripts/unifdef.c: In function 'Mpass': /kisskb/src/scripts/unifdef.c:453:28: warning: 'strncpy' output truncated before terminating nul copying 4 bytes from a string of the same length [-Wstringop-truncation] static void Mpass (void) { strncpy(keyword, "if ", 4); Pelif(); } ^~~~~~~~~~~~~~~~~~~~~~~~~~~ /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:185:16: warning: 'old' 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/lib/rhashtable.c: In function 'rht_deferred_worker': /kisskb/src/lib/rhashtable.c:264:2: warning: 'next' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/rhashtable.c:229:28: note: 'next' was declared here /kisskb/src/fs/gfs2/bmap.c: In function 'gfs2_iomap_get': /kisskb/src/fs/gfs2/bmap.c:926:18: warning: 'height' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/gfs2/bmap.c:786:15: warning: 'len' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/gfs2/bmap.c:817:6: note: 'len' was declared here /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/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/char/tpm/tpm2-cmd.c: In function 'tpm2_unseal_trusted': /kisskb/src/drivers/char/tpm/tpm.h:503:9: warning: 'blob_handle' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/char/tpm/tpm2-cmd.c:665:6: note: 'blob_handle' was declared here /kisskb/src/drivers/char/tpm/tpm-sysfs.c: In function 'pubek_show': /kisskb/src/drivers/char/tpm/tpm-sysfs.c:37:16: warning: 'tpm_buf.data' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/input/mouse/cyapa.c: In function 'cyapa_irq': /kisskb/src/drivers/input/mouse/cyapa.c:717:27: warning: 'error' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/input/mouse/cyapa_gen3.c: In function 'cyapa_gen3_set_power_mode': /kisskb/src/drivers/input/mouse/cyapa_gen3.c:927:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /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/drivers/mfd/tc3589x.c: In function 'tc3589x_probe': /kisskb/src/drivers/mfd/tc3589x.c:390:2: warning: 'version' 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:1248:2: warning: 'ph' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/misc/cxl/native.c:1248:2: warning: 'dsisr' 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:246:2: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:231:19: note: 'i' was declared here /kisskb/src/drivers/iio/proximity/isl29501.c: In function 'isl29501_register_write': /kisskb/src/drivers/iio/proximity/isl29501.c:253:7: warning: 'msb' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iio/temperature/mlx90632.c: In function 'mlx90632_read_raw': /kisskb/src/drivers/iio/temperature/mlx90632.c:348:37: warning: 'object_old_raw' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iio/temperature/mlx90632.c:429:56: note: 'object_old_raw' was declared here /kisskb/src/drivers/iio/temperature/mlx90632.c:348:37: warning: 'object_new_raw' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iio/temperature/mlx90632.c:429:40: note: 'object_new_raw' was declared here /kisskb/src/drivers/md/dm-zoned-metadata.c: In function 'dmz_ctr_metadata': /kisskb/src/drivers/md/dm-zoned-metadata.c:1310:14: warning: 'dmap' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/md/dm-zoned-metadata.c:1285:18: note: 'dmap' was declared here /kisskb/src/drivers/usb/serial/cp210x.c: In function 'cp210x_tx_empty': /kisskb/src/drivers/usb/serial/cp210x.c:855:2: warning: 'count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/usb/serial/f81534.c: In function 'f81534_set_register': /kisskb/src/drivers/usb/serial/f81534.c:244:3: warning: 'status' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/usb/serial/f81534.c: In function 'f81534_get_register': /kisskb/src/drivers/usb/serial/f81534.c:283:3: warning: 'status' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/usb/serial/ti_usb_3410_5052.c: In function 'ti_tx_empty': /kisskb/src/drivers/usb/serial/ti_usb_3410_5052.c:874:20: warning: 'lsr' may be used uninitialized in this function [-Wuninitialized] Completed OK # rm -rf /kisskb/build/linus-rand_powerpc-randconfig_powerpc # Build took: 0:02:18.503848