linaro-kernel

linaro-kernel@lists.linaro.org

10095 discussions

[PATCH v2 0/3] *** Latency histograms - IRQSOFF,PREEMPTOFF ***

by Binoy Jayan

Hi, Thank you Steven and Daniel for reviewing v1 and providing suggestions. These set of patches [v2] capture latency events caused by interrupts and premption disabled in kernel. The patches are based on the hist trigger feature developed by Tom Zanussi. Git-commit: 7ef224d1d0e3a1ade02d02c01ce1dcffb736d2c3 As mentioned by Daniel, there is also a good write up in the following blog by Brendan Gregg: http://www.brendangregg.com/blog/2016-06-08/linux-hist-triggers.html The perf interface for the same have not been developed yet. Related efforts: https://patchwork.kernel.org/patch/8439401 hwlat_detector tracer: https://lkml.org/lkml/2016/8/4/348 https://lkml.org/lkml/2016/8/4/346 The patch series also contains histogram triggers for missed hrtimer offsets. Dependencies: CONFIG_IRQSOFF_TRACER CONFIG_PREEMPT_TRACER CONFIG_PROVE_LOCKING CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG Usage of triggers to generate histograms: mount -t debugfs nodev /sys/kernel/debug echo 'hist:key=latency.log2:val=hitcount:sort=latency' > /sys/kernel/debug/tracing/events/latency/latency_irqs/trigger echo 'hist:key=common_pid.execname' > /sys/kernel/debug/tracing/events/latency/latency_hrtimer_interrupt/trigger CPU specific breakdown of events: echo 'hist:key=cpu,latency:val=hitcount:sort=latency' > /sys/kernel/debug/tracing/events/latency/latency_preempt/trigger echo 'hist:key=cpu,latency:val=hitcount:sort=latency if cpu==1' > /sys/kernel/debug/tracing/events/latency/latency_preempt/trigger Histogram output: cat /sys/kernel/debug/tracing/events/latency/latency_irqs/hist cat /sys/kernel/debug/tracing/events/latency/latency_preempt/hist cat /sys/kernel/debug/tracing/events/latency/latency_critical_timings/hist cat /sys/kernel/debug/tracing/events/latency/latency_hrtimer_interrupt/hist Disable a trigger: echo '!hist:key=latency.log2' > /sys/kernel/debug/tracing/events/latency/latency_irqs/trigger Changes from v1 as per comments from Steven/Daniel - Use single tracepoint for irq/preempt/critical timings by introducing a trace type field to differentiate trace type in the same tracepoint. A suspicious RCU usage error was introduced, while using the trigger command by mentioning the trace type as a key along with cpu. I couldn't figure out why. Also, this type of arrangement may also be substandard performance vice. - Using a more accurate fast local clock instead of a global ftrace clock. TODO: 1. perf interface. Not sure if this is needed 2. Latency histograms - process wakeup latency - Suggestion from Daniel to not introduce tracepoints in scheduler's hotpaths - Alternative to attach kprobes to functions which falls in critical paths and find diff of timestamps using event trigger commands. For example: echo "p:myprobe1 start_critical_timings" > /sys/kernel/debug/tracing/kprobe_events echo "p:myprobe2 stop_critical_timings" >> /sys/kernel/debug/tracing/kprobe_events cat /sys/kernel/debug/tracing/kprobe_events echo 1 > /sys/kernel/debug/tracing/events/kprobes/myprobe1/enable echo 1 > /sys/kernel/debug/tracing/events/kprobes/myprobe2/enable cat /sys/kernel/debug/tracing/kprobe_events And somehow save the timestamps for 'myprobe1' and 'myprobe2' in 'event_hist_trigger()'. This seems not feasible now as the histogram data is saved as a 'sum' only for the conditions met in the key definition. This makes it impossible to save timestamps for individual events. kernel/trace/trace_events_hist.c +840: hist_trigger_elt_update() Mhiramat and Steve, suggested an alternative to keep this timestamp is to create a new ftrace map, store the timestamp with context "key" on the named map upon event start. Then, at the event end trigger the histogram, pick timestamp from the map by using context "key" and calculate the difference. Basically this needs is a "map" which can be accessed from both the events, .i.e that is the "global variable". Binoy Binoy Jayan (2): tracing: Add trace_irqsoff tracepoints tracing: Histogram for missed timer offsets Daniel Wagner (1): tracing: Deference pointers without RCU checks include/linux/hrtimer.h | 3 ++ include/linux/rculist.h | 36 ++++++++++++++++++ include/linux/tracepoint.h | 4 +- include/trace/events/latency.h | 74 +++++++++++++++++++++++++++++++++++++ kernel/time/hrtimer.c | 39 +++++++++++++++++++ kernel/trace/trace_events_trigger.c | 6 +-- kernel/trace/trace_irqsoff.c | 42 ++++++++++++++++++++- 7 files changed, 198 insertions(+), 6 deletions(-) create mode 100644 include/trace/events/latency.h -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

9 years

master build: 3 failures 1 warnings (v4.8-rc3-227-g908e373)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.8-rc3-227-g908e373 Commit: 908e373f1c Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Build Time: 109 min 49 sec Passed: 7 / 10 ( 70.00 %) Failed: 3 / 10 ( 30.00 %) Errors: 1 Warnings: 1 Section Mismatches: 0 Failed defconfigs: arm-allmodconfig arm-multi_v7_defconfig arm-multi_v5_defconfig Errors: arm-allmodconfig ../drivers/clocksource/timer-atmel-pit.c:264:2: error: 'ret' undeclared (first use in this function) arm-multi_v7_defconfig ../drivers/clocksource/timer-atmel-pit.c:264:2: error: 'ret' undeclared (first use in this function) arm-multi_v5_defconfig ../drivers/clocksource/timer-atmel-pit.c:264:2: error: 'ret' undeclared (first use in this function) ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 1 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Errors summary: 1 3 ../drivers/clocksource/timer-atmel-pit.c:264:2: error: 'ret' undeclared (first use in this function) Warnings Summary: 1 1 ../drivers/tty/serial/8250/8250_fintek.c:34:0: warning: "IRQ_MODE" redefined =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm-allmodconfig : FAIL, 1 errors, 1 warnings, 0 section mismatches Errors: ../drivers/clocksource/timer-atmel-pit.c:264:2: error: 'ret' undeclared (first use in this function) Warnings: ../drivers/tty/serial/8250/8250_fintek.c:34:0: warning: "IRQ_MODE" redefined ------------------------------------------------------------------------------- arm-multi_v7_defconfig : FAIL, 1 errors, 0 warnings, 0 section mismatches Errors: ../drivers/clocksource/timer-atmel-pit.c:264:2: error: 'ret' undeclared (first use in this function) ------------------------------------------------------------------------------- arm-multi_v5_defconfig : FAIL, 1 errors, 0 warnings, 0 section mismatches Errors: ../drivers/clocksource/timer-atmel-pit.c:264:2: error: 'ret' undeclared (first use in this function) ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig

9 years

v3.10.103 build: 0 failures 77 warnings (v3.10.103)

by Build bot for Mark Brown

Tree/Branch: v3.10.103 Git describe: v3.10.103 Commit: 2ecaf1d025 Linux 3.10.103 Build Time: 45 min 31 sec Passed: 8 / 8 (100.00 %) Failed: 0 / 8 ( 0.00 %) Errors: 0 Warnings: 77 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 2 warnings 0 mismatches : arm64-allnoconfig 28 warnings 0 mismatches : arm64-allmodconfig 5 warnings 0 mismatches : arm-multi_v7_defconfig 3 warnings 0 mismatches : x86_64-defconfig 55 warnings 0 mismatches : arm-allmodconfig 2 warnings 0 mismatches : arm-allnoconfig 2 warnings 0 mismatches : x86_64-allnoconfig 7 warnings 0 mismatches : arm64-defconfig ------------------------------------------------------------------------------- Warnings Summary: 77 6 /home/broonie/build/linux-stable/drivers/tty/sysrq.c:907:33: warning: array subscript is above array bounds [-Warray-bounds] 5 /home/broonie/build/linux-stable/net/core/sysctl_net_core.c:24:12: warning: 'one' defined but not used [-Wunused-variable] 4 /home/broonie/build/linux-stable/scripts/sortextable.h:158:3: warning: 'relocs_size' may be used uninitialized in this function [-Wmaybe-uninitialized] 4 /home/broonie/build/linux-stable/arch/arm64/include/asm/cmpxchg.h:162:3: warning: value computed is not used [-Wunused-value] 3 /home/broonie/build/linux-stable/fs/namespace.c:2586:8: warning: 'kernel_type' may be used uninitialized in this function [-Wmaybe-uninitialized] 3 /home/broonie/build/linux-stable/fs/namespace.c:2586:8: warning: 'kernel_dev' may be used uninitialized in this function [-Wmaybe-uninitialized] 3 /home/broonie/build/linux-stable/arch/arm64/include/asm/cmpxchg.h:74:3: warning: value computed is not used [-Wunused-value] 2 /home/broonie/build/linux-stable/include/linux/dynamic_debug.h:78:3: warning: unsupported argument to '__builtin_return_address' 2 /home/broonie/build/linux-stable/fs/namespace.c:2586:6: warning: 'kernel_type' may be used uninitialized in this function [-Wmaybe-uninitialized] 2 /home/broonie/build/linux-stable/fs/namespace.c:2586:6: warning: 'kernel_dev' may be used uninitialized in this function [-Wmaybe-uninitialized] 2 /home/broonie/build/linux-stable/drivers/net/wireless/iwlwifi/mvm/fw.c:90:64: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers] 2 /home/broonie/build/linux-stable/drivers/net/ethernet/smsc/smc91x.c:1899:7: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 2 /home/broonie/build/linux-stable/Documentation/misc-devices/mei/mei-amt-version.c:103:5: warning: 'acmd.fd' is used uninitialized in this function [-Wuninitialized] 1 /home/broonie/build/linux-stable/sound/soc/codecs/max98090.c:2354:12: warning: 'max98090_runtime_suspend' defined but not used [-Wunused-function] 1 /home/broonie/build/linux-stable/sound/soc/codecs/max98090.c:2341:12: warning: 'max98090_runtime_resume' defined but not used [-Wunused-function] 1 /home/broonie/build/linux-stable/net/sunrpc/xprtrdma/verbs.c:1774:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 /home/broonie/build/linux-stable/kernel/auditfilter.c:426:3: warning: this decimal constant is unsigned only in ISO C90 1 /home/broonie/build/linux-stable/include/linux/kernel.h:676:17: warning: comparison of distinct pointer types lacks a cast 1 /home/broonie/build/linux-stable/include/linux/kern_levels.h:4:18: warning: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'resource_size_t {aka long long unsigned int}' [-Wformat=] 1 /home/broonie/build/linux-stable/include/linux/clocksource.h:345:20: warning: comparison of distinct pointer types lacks a cast 1 /home/broonie/build/linux-stable/drivers/video/aty/radeon_pm.c:1718:13: warning: 'radeon_reinitialize_M10' defined but not used [-Wunused-function] 1 /home/broonie/build/linux-stable/drivers/usb/host/xhci.c:3603:17: warning: unused variable 'dev' [-Wunused-variable] 1 /home/broonie/build/linux-stable/drivers/usb/host/xhci.c:3517:17: warning: unused variable 'dev' [-Wunused-variable] 1 /home/broonie/build/linux-stable/drivers/staging/wlan-ng/prism2fw.c:795:1: warning: the frame size of 1072 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 /home/broonie/build/linux-stable/drivers/staging/vt6655/iwctl.c:758:1: warning: the frame size of 1280 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 /home/broonie/build/linux-stable/drivers/staging/vt6655/device_main.c:3257:1: warning: the frame size of 1864 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 /home/broonie/build/linux-stable/drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] 1 /home/broonie/build/linux-stable/drivers/spi/spi-pl022.c:281:31: warning: large integer implicitly truncated to unsigned type [-Woverflow] 1 /home/broonie/build/linux-stable/drivers/spi/spi-gpio.c:255:8: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 /home/broonie/build/linux-stable/drivers/scsi/pm8001/pm8001_init.c:427:5: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 /home/broonie/build/linux-stable/drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] 1 /home/broonie/build/linux-stable/drivers/scsi/aic7xxx_old.c:8517:5: warning: case value '257' not in enumerated type 'ahc_chip {aka enum <anonymous>}' [-Wswitch] 1 /home/broonie/build/linux-stable/drivers/scsi/aic7xxx_old.c:8510:5: warning: case value '513' not in enumerated type 'ahc_chip {aka enum <anonymous>}' [-Wswitch] 1 /home/broonie/build/linux-stable/drivers/scsi/aic7xxx_old.c:7901:5: warning: case value '257' not in enumerated type 'ahc_chip {aka enum <anonymous>}' [-Wswitch] 1 /home/broonie/build/linux-stable/drivers/scsi/aic7xxx_old.c:7898:5: warning: case value '513' not in enumerated type 'ahc_chip {aka enum <anonymous>}' [-Wswitch] 1 /home/broonie/build/linux-stable/drivers/regulator/tps62360-regulator.c:364:13: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 /home/broonie/build/linux-stable/drivers/power/twl4030_charger.c:192:4: warning: ignoring return value of 'regulator_enable', declared with attribute warn_unused_result [-Wunused-result] 1 /home/broonie/build/linux-stable/drivers/power/pm2301_charger.c:725:4: warning: ignoring return value of 'regulator_enable', declared with attribute warn_unused_result [-Wunused-result] 1 /home/broonie/build/linux-stable/drivers/power/ab8500_charger.c:1558:4: warning: ignoring return value of 'regulator_enable', declared with attribute warn_unused_result [-Wunused-result] 1 /home/broonie/build/linux-stable/drivers/power/ab8500_charger.c:1389:4: warning: ignoring return value of 'regulator_enable', declared with attribute warn_unused_result [-Wunused-result] 1 /home/broonie/build/linux-stable/drivers/pinctrl/pinctrl-bcm2835.c:1053:2: warning: ignoring return value of 'gpiochip_remove', declared with attribute warn_unused_result [-Wunused-result] 1 /home/broonie/build/linux-stable/drivers/pinctrl/pinctrl-bcm2835.c:1036:3: warning: ignoring return value of 'gpiochip_remove', declared with attribute warn_unused_result [-Wunused-result] 1 /home/broonie/build/linux-stable/drivers/net/wireless/ti/wlcore/spi.c:321:1: warning: the frame size of 8688 bytes is larger than 2048 bytes [-Wframe-larger-than=] 1 /home/broonie/build/linux-stable/drivers/net/ethernet/sfc/selftest.c:389:9: warning: passing argument 1 of 'memcpy' discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers] 1 /home/broonie/build/linux-stable/drivers/net/ethernet/neterion/vxge/vxge-main.c:2143:13: warning: 'adaptive_coalesce_rx_interrupts' defined but not used [-Wunused-function] 1 /home/broonie/build/linux-stable/drivers/net/ethernet/neterion/vxge/vxge-main.c:2115:13: warning: 'adaptive_coalesce_tx_interrupts' defined but not used [-Wunused-function] 1 /home/broonie/build/linux-stable/drivers/net/ethernet/dec/tulip/winbond-840.c:911:2: warning: #warning Processor architecture undefined [-Wcpp] 1 /home/broonie/build/linux-stable/drivers/net/ethernet/amd/nmclan_cs.c:625:3: warning: 'pcmcia_request_exclusive_irq' is deprecated [-Wdeprecated-declarations] 1 /home/broonie/build/linux-stable/drivers/mtd/chips/cfi_cmdset_0020.c:654:1: warning: the frame size of 1192 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 /home/broonie/build/linux-stable/drivers/mmc/host/tmio_mmc_pio.c:798:3: warning: ignoring return value of 'regulator_enable', declared with attribute warn_unused_result [-Wunused-result] 1 /home/broonie/build/linux-stable/drivers/misc/lkdtm.c:276:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 /home/broonie/build/linux-stable/drivers/mfd/tps65217.c:173:13: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 /home/broonie/build/linux-stable/drivers/media/platform/omap3isp/ispccp2.c:167:3: warning: ignoring return value of 'regulator_enable', declared with attribute warn_unused_result [-Wunused-result] 1 /home/broonie/build/linux-stable/drivers/media/platform/coda.c:952:40: warning: array subscript is above array bounds [-Warray-bounds] 1 /home/broonie/build/linux-stable/drivers/media/platform/coda.c:944:39: warning: array subscript is above array bounds [-Warray-bounds] 1 /home/broonie/build/linux-stable/drivers/iommu/omap-iommu.c:1245:17: warning: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'dma_addr_t {aka unsigned int}' [-Wformat=] 1 /home/broonie/build/linux-stable/drivers/iommu/omap-iommu.c:1238:17: warning: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'dma_addr_t {aka unsigned int}' [-Wformat=] 1 /home/broonie/build/linux-stable/drivers/input/keyboard/cros_ec_keyb.c:210:13: warning: 'cros_ec_keyb_clear_keyboard' defined but not used [-Wunused-function] 1 /home/broonie/build/linux-stable/drivers/input/joystick/analog.c:171:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp] 1 /home/broonie/build/linux-stable/drivers/infiniband/hw/nes/nes_hw.c:92:23: warning: 'nes_tcp_state_str' defined but not used [-Wunused-variable] 1 /home/broonie/build/linux-stable/drivers/infiniband/hw/nes/nes_hw.c:81:23: warning: 'nes_iwarp_state_str' defined but not used [-Wunused-variable] 1 /home/broonie/build/linux-stable/drivers/infiniband/hw/cxgb4/mem.c:79:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 /home/broonie/build/linux-stable/drivers/iio/adc/exynos_adc.c:111:9: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 /home/broonie/build/linux-stable/drivers/gpu/drm/exynos/exynos_hdmi.c:1702:2: warning: ignoring return value of 'regulator_bulk_enable', declared with attribute warn_unused_result [-Wunused-result] 1 /home/broonie/build/linux-stable/drivers/gpio/gpio-mcp23s08.c:622:10: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 /home/broonie/build/linux-stable/drivers/dma/pl330.c:2379:21: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 /home/broonie/build/linux-stable/drivers/dma/pl330.c:2058:5: warning: passing argument 3 of 'dma_alloc_coherent' from incompatible pointer type [-Wincompatible-pointer-types] 1 /home/broonie/build/linux-stable/drivers/dma/amba-pl08x.c:920:5: warning: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'size_t {aka long unsigned int}' [-Wformat=] 1 /home/broonie/build/linux-stable/drivers/dma/amba-pl08x.c:848:31: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t {aka long long unsigned int}' [-Wformat=] 1 /home/broonie/build/linux-stable/drivers/dma/amba-pl08x.c:848:31: warning: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'dma_addr_t {aka long long unsigned int}' [-Wformat=] 1 /home/broonie/build/linux-stable/drivers/block/mtip32xx/mtip32xx.c:2827:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 /home/broonie/build/linux-stable/drivers/ata/pata_hpt366.c:383:9: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers] 1 /home/broonie/build/linux-stable/drivers/ata/pata_hpt366.c:380:9: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers] 1 /home/broonie/build/linux-stable/drivers/ata/pata_hpt366.c:377:9: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers] 1 /home/broonie/build/linux-stable/arch/arm/mm/init.c:731:35: warning: passing argument 2 of 'free_reserved_area' makes integer from pointer without a cast [-Wint-conversion] 1 /home/broonie/build/linux-stable/arch/arm/mm/init.c:731:21: warning: passing argument 1 of 'free_reserved_area' makes integer from pointer without a cast [-Wint-conversion] 1 /home/broonie/build/linux-stable/arch/arm/mach-omap2/board-am3517crane.c:113:6: warning: unused variable 'ret' [-Wunused-variable] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allnoconfig : PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: /home/broonie/build/linux-stable/fs/namespace.c:2586:8: warning: 'kernel_dev' may be used uninitialized in this function [-Wmaybe-uninitialized] /home/broonie/build/linux-stable/fs/namespace.c:2586:8: warning: 'kernel_type' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 28 warnings, 0 section mismatches Warnings: /home/broonie/build/linux-stable/arch/arm64/include/asm/cmpxchg.h:74:3: warning: value computed is not used [-Wunused-value] /home/broonie/build/linux-stable/arch/arm64/include/asm/cmpxchg.h:74:3: warning: value computed is not used [-Wunused-value] /home/broonie/build/linux-stable/arch/arm64/include/asm/cmpxchg.h:74:3: warning: value computed is not used [-Wunused-value] /home/broonie/build/linux-stable/sound/soc/codecs/max98090.c:2341:12: warning: 'max98090_runtime_resume' defined but not used [-Wunused-function] /home/broonie/build/linux-stable/sound/soc/codecs/max98090.c:2354:12: warning: 'max98090_runtime_suspend' defined but not used [-Wunused-function] /home/broonie/build/linux-stable/drivers/dma/amba-pl08x.c:848:31: warning: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'dma_addr_t {aka long long unsigned int}' [-Wformat=] /home/broonie/build/linux-stable/drivers/dma/amba-pl08x.c:848:31: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t {aka long long unsigned int}' [-Wformat=] /home/broonie/build/linux-stable/drivers/dma/amba-pl08x.c:920:5: warning: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'size_t {aka long unsigned int}' [-Wformat=] /home/broonie/build/linux-stable/drivers/dma/pl330.c:2058:5: warning: passing argument 3 of 'dma_alloc_coherent' from incompatible pointer type [-Wincompatible-pointer-types] /home/broonie/build/linux-stable/drivers/dma/pl330.c:2379:21: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] /home/broonie/build/linux-stable/drivers/gpio/gpio-mcp23s08.c:622:10: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] /home/broonie/build/linux-stable/drivers/iio/adc/exynos_adc.c:111:9: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] /home/broonie/build/linux-stable/arch/arm64/include/asm/cmpxchg.h:162:3: warning: value computed is not used [-Wunused-value] /home/broonie/build/linux-stable/net/core/sysctl_net_core.c:24:12: warning: 'one' defined but not used [-Wunused-variable] /home/broonie/build/linux-stable/drivers/input/joystick/analog.c:171:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp] /home/broonie/build/linux-stable/drivers/input/keyboard/cros_ec_keyb.c:210:13: warning: 'cros_ec_keyb_clear_keyboard' defined but not used [-Wunused-function] /home/broonie/build/linux-stable/drivers/mfd/tps65217.c:173:13: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] /home/broonie/build/linux-stable/arch/arm64/include/asm/cmpxchg.h:162:3: warning: value computed is not used [-Wunused-value] /home/broonie/build/linux-stable/drivers/net/ethernet/smsc/smc91x.c:1899:7: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] /home/broonie/build/linux-stable/drivers/regulator/tps62360-regulator.c:364:13: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] /home/broonie/build/linux-stable/arch/arm64/include/asm/cmpxchg.h:162:3: warning: value computed is not used [-Wunused-value] /home/broonie/build/linux-stable/drivers/spi/spi-gpio.c:255:8: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] /home/broonie/build/linux-stable/drivers/spi/spi-pl022.c:281:31: warning: large integer implicitly truncated to unsigned type [-Woverflow] /home/broonie/build/linux-stable/include/linux/kern_levels.h:4:18: warning: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'resource_size_t {aka long long unsigned int}' [-Wformat=] /home/broonie/build/linux-stable/drivers/tty/sysrq.c:907:33: warning: array subscript is above array bounds [-Warray-bounds] /home/broonie/build/linux-stable/drivers/tty/sysrq.c:907:33: warning: array subscript is above array bounds [-Warray-bounds] /home/broonie/build/linux-stable/drivers/net/wireless/ti/wlcore/spi.c:321:1: warning: the frame size of 8688 bytes is larger than 2048 bytes [-Wframe-larger-than=] /home/broonie/build/linux-stable/Documentation/misc-devices/mei/mei-amt-version.c:103:5: warning: 'acmd.fd' is used uninitialized in this function [-Wuninitialized] ------------------------------------------------------------------------------- arm-multi_v7_defconfig : PASS, 0 errors, 5 warnings, 0 section mismatches Warnings: /home/broonie/build/linux-stable/scripts/sortextable.h:158:3: warning: 'relocs_size' may be used uninitialized in this function [-Wmaybe-uninitialized] /home/broonie/build/linux-stable/scripts/sortextable.h:158:3: warning: 'relocs_size' may be used uninitialized in this function [-Wmaybe-uninitialized] /home/broonie/build/linux-stable/net/core/sysctl_net_core.c:24:12: warning: 'one' defined but not used [-Wunused-variable] /home/broonie/build/linux-stable/fs/namespace.c:2586:6: warning: 'kernel_dev' may be used uninitialized in this function [-Wmaybe-uninitialized] /home/broonie/build/linux-stable/fs/namespace.c:2586:6: warning: 'kernel_type' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- x86_64-defconfig : PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: /home/broonie/build/linux-stable/fs/namespace.c:2586:8: warning: 'kernel_dev' may be used uninitialized in this function [-Wmaybe-uninitialized] /home/broonie/build/linux-stable/fs/namespace.c:2586:8: warning: 'kernel_type' may be used uninitialized in this function [-Wmaybe-uninitialized] /home/broonie/build/linux-stable/net/core/sysctl_net_core.c:24:12: warning: 'one' defined but not used [-Wunused-variable] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 55 warnings, 0 section mismatches Warnings: /home/broonie/build/linux-stable/arch/arm/mm/init.c:731:21: warning: passing argument 1 of 'free_reserved_area' makes integer from pointer without a cast [-Wint-conversion] /home/broonie/build/linux-stable/arch/arm/mm/init.c:731:35: warning: passing argument 2 of 'free_reserved_area' makes integer from pointer without a cast [-Wint-conversion] /home/broonie/build/linux-stable/arch/arm/mach-omap2/board-am3517crane.c:113:6: warning: unused variable 'ret' [-Wunused-variable] /home/broonie/build/linux-stable/kernel/auditfilter.c:426:3: warning: this decimal constant is unsigned only in ISO C90 /home/broonie/build/linux-stable/drivers/ata/pata_hpt366.c:377:9: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers] /home/broonie/build/linux-stable/drivers/ata/pata_hpt366.c:380:9: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers] /home/broonie/build/linux-stable/drivers/ata/pata_hpt366.c:383:9: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers] /home/broonie/build/linux-stable/include/linux/kernel.h:676:17: warning: comparison of distinct pointer types lacks a cast /home/broonie/build/linux-stable/drivers/block/mtip32xx/mtip32xx.c:2827:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] /home/broonie/build/linux-stable/include/linux/clocksource.h:345:20: warning: comparison of distinct pointer types lacks a cast /home/broonie/build/linux-stable/net/core/sysctl_net_core.c:24:12: warning: 'one' defined but not used [-Wunused-variable] /home/broonie/build/linux-stable/drivers/gpu/drm/exynos/exynos_hdmi.c:1702:2: warning: ignoring return value of 'regulator_bulk_enable', declared with attribute warn_unused_result [-Wunused-result] /home/broonie/build/linux-stable/drivers/infiniband/hw/cxgb4/mem.c:79:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] /home/broonie/build/linux-stable/net/sunrpc/xprtrdma/verbs.c:1774:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=] /home/broonie/build/linux-stable/drivers/infiniband/hw/nes/nes_hw.c:81:23: warning: 'nes_iwarp_state_str' defined but not used [-Wunused-variable] /home/broonie/build/linux-stable/drivers/infiniband/hw/nes/nes_hw.c:92:23: warning: 'nes_tcp_state_str' defined but not used [-Wunused-variable] /home/broonie/build/linux-stable/drivers/iommu/omap-iommu.c:1238:17: warning: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'dma_addr_t {aka unsigned int}' [-Wformat=] /home/broonie/build/linux-stable/drivers/iommu/omap-iommu.c:1245:17: warning: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'dma_addr_t {aka unsigned int}' [-Wformat=] /home/broonie/build/linux-stable/include/linux/dynamic_debug.h:78:3: warning: unsupported argument to '__builtin_return_address' /home/broonie/build/linux-stable/include/linux/dynamic_debug.h:78:3: warning: unsupported argument to '__builtin_return_address' /home/broonie/build/linux-stable/drivers/misc/lkdtm.c:276:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=] /home/broonie/build/linux-stable/drivers/mtd/chips/cfi_cmdset_0020.c:654:1: warning: the frame size of 1192 bytes is larger than 1024 bytes [-Wframe-larger-than=] /home/broonie/build/linux-stable/drivers/mmc/host/tmio_mmc_pio.c:798:3: warning: ignoring return value of 'regulator_enable', declared with attribute warn_unused_result [-Wunused-result] /home/broonie/build/linux-stable/drivers/media/platform/omap3isp/ispccp2.c:167:3: warning: ignoring return value of 'regulator_enable', declared with attribute warn_unused_result [-Wunused-result] /home/broonie/build/linux-stable/drivers/pinctrl/pinctrl-bcm2835.c:1053:2: warning: ignoring return value of 'gpiochip_remove', declared with attribute warn_unused_result [-Wunused-result] /home/broonie/build/linux-stable/drivers/pinctrl/pinctrl-bcm2835.c:1036:3: warning: ignoring return value of 'gpiochip_remove', declared with attribute warn_unused_result [-Wunused-result] /home/broonie/build/linux-stable/drivers/power/ab8500_charger.c:1389:4: warning: ignoring return value of 'regulator_enable', declared with attribute warn_unused_result [-Wunused-result] /home/broonie/build/linux-stable/drivers/power/ab8500_charger.c:1558:4: warning: ignoring return value of 'regulator_enable', declared with attribute warn_unused_result [-Wunused-result] /home/broonie/build/linux-stable/drivers/media/platform/coda.c:944:39: warning: array subscript is above array bounds [-Warray-bounds] /home/broonie/build/linux-stable/drivers/media/platform/coda.c:952:40: warning: array subscript is above array bounds [-Warray-bounds] /home/broonie/build/linux-stable/drivers/power/pm2301_charger.c:725:4: warning: ignoring return value of 'regulator_enable', declared with attribute warn_unused_result [-Wunused-result] /home/broonie/build/linux-stable/drivers/net/ethernet/amd/nmclan_cs.c:625:3: warning: 'pcmcia_request_exclusive_irq' is deprecated [-Wdeprecated-declarations] /home/broonie/build/linux-stable/drivers/power/twl4030_charger.c:192:4: warning: ignoring return value of 'regulator_enable', declared with attribute warn_unused_result [-Wunused-result] /home/broonie/build/linux-stable/drivers/tty/sysrq.c:907:33: warning: array subscript is above array bounds [-Warray-bounds] /home/broonie/build/linux-stable/drivers/tty/sysrq.c:907:33: warning: array subscript is above array bounds [-Warray-bounds] /home/broonie/build/linux-stable/drivers/net/ethernet/dec/tulip/winbond-840.c:911:2: warning: #warning Processor architecture undefined [-Wcpp] /home/broonie/build/linux-stable/drivers/scsi/pm8001/pm8001_init.c:427:5: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] /home/broonie/build/linux-stable/drivers/net/ethernet/neterion/vxge/vxge-main.c:2115:13: warning: 'adaptive_coalesce_tx_interrupts' defined but not used [-Wunused-function] /home/broonie/build/linux-stable/drivers/net/ethernet/neterion/vxge/vxge-main.c:2143:13: warning: 'adaptive_coalesce_rx_interrupts' defined but not used [-Wunused-function] /home/broonie/build/linux-stable/drivers/usb/host/xhci.c:3517:17: warning: unused variable 'dev' [-Wunused-variable] /home/broonie/build/linux-stable/drivers/usb/host/xhci.c:3603:17: warning: unused variable 'dev' [-Wunused-variable] /home/broonie/build/linux-stable/drivers/scsi/aic7xxx_old.c:7901:5: warning: case value '257' not in enumerated type 'ahc_chip {aka enum <anonymous>}' [-Wswitch] /home/broonie/build/linux-stable/drivers/scsi/aic7xxx_old.c:7898:5: warning: case value '513' not in enumerated type 'ahc_chip {aka enum <anonymous>}' [-Wswitch] /home/broonie/build/linux-stable/drivers/scsi/aic7xxx_old.c:8517:5: warning: case value '257' not in enumerated type 'ahc_chip {aka enum <anonymous>}' [-Wswitch] /home/broonie/build/linux-stable/drivers/scsi/aic7xxx_old.c:8510:5: warning: case value '513' not in enumerated type 'ahc_chip {aka enum <anonymous>}' [-Wswitch] /home/broonie/build/linux-stable/drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] /home/broonie/build/linux-stable/drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] /home/broonie/build/linux-stable/drivers/net/ethernet/sfc/selftest.c:389:9: warning: passing argument 1 of 'memcpy' discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers] /home/broonie/build/linux-stable/drivers/staging/vt6655/device_main.c:3257:1: warning: the frame size of 1864 bytes is larger than 1024 bytes [-Wframe-larger-than=] /home/broonie/build/linux-stable/drivers/staging/vt6655/iwctl.c:758:1: warning: the frame size of 1280 bytes is larger than 1024 bytes [-Wframe-larger-than=] /home/broonie/build/linux-stable/drivers/video/aty/radeon_pm.c:1718:13: warning: 'radeon_reinitialize_M10' defined but not used [-Wunused-function] /home/broonie/build/linux-stable/drivers/staging/wlan-ng/prism2fw.c:795:1: warning: the frame size of 1072 bytes is larger than 1024 bytes [-Wframe-larger-than=] /home/broonie/build/linux-stable/drivers/net/wireless/iwlwifi/mvm/fw.c:90:64: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers] /home/broonie/build/linux-stable/drivers/net/wireless/iwlwifi/mvm/fw.c:90:64: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers] /home/broonie/build/linux-stable/Documentation/misc-devices/mei/mei-amt-version.c:103:5: warning: 'acmd.fd' is used uninitialized in this function [-Wuninitialized] ------------------------------------------------------------------------------- arm-allnoconfig : PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: /home/broonie/build/linux-stable/fs/namespace.c:2586:6: warning: 'kernel_dev' may be used uninitialized in this function [-Wmaybe-uninitialized] /home/broonie/build/linux-stable/fs/namespace.c:2586:6: warning: 'kernel_type' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- x86_64-allnoconfig : PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: /home/broonie/build/linux-stable/scripts/sortextable.h:158:3: warning: 'relocs_size' may be used uninitialized in this function [-Wmaybe-uninitialized] /home/broonie/build/linux-stable/scripts/sortextable.h:158:3: warning: 'relocs_size' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- arm64-defconfig : PASS, 0 errors, 7 warnings, 0 section mismatches Warnings: /home/broonie/build/linux-stable/fs/namespace.c:2586:8: warning: 'kernel_dev' may be used uninitialized in this function [-Wmaybe-uninitialized] /home/broonie/build/linux-stable/fs/namespace.c:2586:8: warning: 'kernel_type' may be used uninitialized in this function [-Wmaybe-uninitialized] /home/broonie/build/linux-stable/arch/arm64/include/asm/cmpxchg.h:162:3: warning: value computed is not used [-Wunused-value] /home/broonie/build/linux-stable/net/core/sysctl_net_core.c:24:12: warning: 'one' defined but not used [-Wunused-variable] /home/broonie/build/linux-stable/drivers/net/ethernet/smsc/smc91x.c:1899:7: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] /home/broonie/build/linux-stable/drivers/tty/sysrq.c:907:33: warning: array subscript is above array bounds [-Warray-bounds] /home/broonie/build/linux-stable/drivers/tty/sysrq.c:907:33: warning: array subscript is above array bounds [-Warray-bounds] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches:

9 years

master build: 0 failures 1 warnings (v4.8-rc3-201-gaf56ff2)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.8-rc3-201-gaf56ff2 Commit: af56ff27eb Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Build Time: 91 min 37 sec Passed: 10 / 10 (100.00 %) Failed: 0 / 10 ( 0.00 %) Errors: 0 Warnings: 1 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 1 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 1 1 ../drivers/tty/serial/8250/8250_fintek.c:34:0: warning: "IRQ_MODE" redefined =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/tty/serial/8250/8250_fintek.c:34:0: warning: "IRQ_MODE" redefined ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

9 years

master build: 0 failures 1 warnings (v4.8-rc3-183-g5e608a0)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.8-rc3-183-g5e608a0 Commit: 5e608a0270 Merge branch 'akpm' (patches from Andrew) Build Time: 90 min 44 sec Passed: 10 / 10 (100.00 %) Failed: 0 / 10 ( 0.00 %) Errors: 0 Warnings: 1 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 1 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 1 1 ../drivers/tty/serial/8250/8250_fintek.c:34:0: warning: "IRQ_MODE" redefined =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/tty/serial/8250/8250_fintek.c:34:0: warning: "IRQ_MODE" redefined ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

9 years

master build: 0 failures 1 warnings (v4.8-rc3-171-g65fc7d5)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.8-rc3-171-g65fc7d5 Commit: 65fc7d54ef Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Build Time: 91 min 53 sec Passed: 10 / 10 (100.00 %) Failed: 0 / 10 ( 0.00 %) Errors: 0 Warnings: 1 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 1 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 1 1 ../drivers/tty/serial/8250/8250_fintek.c:34:0: warning: "IRQ_MODE" redefined =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/tty/serial/8250/8250_fintek.c:34:0: warning: "IRQ_MODE" redefined ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

9 years

master build: 0 failures 1 warnings (v4.8-rc3-71-gfd1ae51)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.8-rc3-71-gfd1ae51 Commit: fd1ae51452 Merge branch 'for-linus' of git://git.kernel.dk/linux-block Build Time: 91 min 51 sec Passed: 10 / 10 (100.00 %) Failed: 0 / 10 ( 0.00 %) Errors: 0 Warnings: 1 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 1 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 1 1 ../drivers/tty/serial/8250/8250_fintek.c:34:0: warning: "IRQ_MODE" redefined =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/tty/serial/8250/8250_fintek.c:34:0: warning: "IRQ_MODE" redefined ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

9 years

[GIT PULL] [lsk-v3.18-android] linaro-android v3.18 topic branch updates

by Amit Pundir

Hi Alex, Mark, Please consider following linaro-android pull request for "linux-linaro-lsk-v3.18-android" LSK branch. Heads up for this pretty big pull request. Other than regular net/gadget fixups, a lot of new patches/backports ranging from scheduler(core, cfs task boosting, eas, walt etc) to Kcov code coverage landed in aosp/android-3.18. Regards, Amit Pundir The following changes since commit 6fea883f6cd573ce8449ddf75ab59a75aa0df292: Merge branch 'linux-linaro-lsk-v3.18' into linux-linaro-lsk-v3.18-android (2016-08-23 12:31:02 +0800) are available in the git repository at: git://android.git.linaro.org/kernel/linaro-android.git lsk-v3.18-android for you to fetch changes up to 0a77803d23ea9f490536fad1770d7d7b03eef3fd: sched/walt: include missing header for arm_timer_read_counter() (2016-08-26 10:50:11 +0530) ---------------------------------------------------------------- Al Viro (1): BACKPORT: ecryptfs: fix handling of directory opening Amit Pundir (3): ANDROID: net: fib: remove duplicate assignment sched/walt: use do_div instead of division operator sched/walt: include missing header for arm_timer_read_counter() Anson Jacob (1): usb: gadget: f_accessory: remove duplicate endpoint alloc Boqun Feng (1): sched/fair: Clean up the __sched_period() code Byungchul Park (9): sched/fair: Fix a comment reflecting function name change sched: Ensure a task has a non-normalized vruntime when returning back to CFS sched/fair: Factor out the {at,de}taching of the per entity load {to,from} the runqueue sched/fair: Have task_move_group_fair() unconditionally add the entity load to the runqueue sched/fair: Have task_move_group_fair() also detach entity load from the old runqueue sched/fair: Fix switched_to_fair()'s per entity load tracking sched/fair: Unify switched_{from,to}_fair() and task_move_group_fair() sched/fair: Modify the comment about lock assumptions in migrate_task_rq_fair() sched/fair: Make it possible to account fair load avg consistently Chris Redpath (1): arch_timer: add error handling when the MPM global timer is cleared Christoph Lameter (1): vmstat: make vmstat_updater deferrable again and shut down on idle Dietmar Eggemann (22): sched/fair: Make load tracking frequency scale-invariant sched/fair: Make utilization tracking CPU scale-invariant sched/fair: Name utilization related data and functions consistently sched/fair: Get rid of scaling utilization by capacity_orig sched/fair: Defer calling scaling functions cpufreq: Frequency invariant scheduler load-tracking support arm64: Enable frequency invariant scheduler load-tracking support sched: Store system-wide maximum cpu capacity in root domain sched: Enable idle balance to pull single task towards cpu with higher capacity sched: Introduce energy data structures sched: Initialize energy data structures sched: Determine the current sched_group idle-state sched: Consider a not over-utilized energy-aware system as balanced cpufreq: Max freq invariant scheduler load-tracking and cpu capacity support sched: Update max cpu capacity in case of max frequency constraints arm64: Enable max freq invariant scheduler load-tracking and capacity support sched: Do eas idle balance regardless of the rq avg idle value arm: Enable frequency invariant scheduler load-tracking support arm: topology: Define TC2 energy and provide it to the scheduler arm: Cpu invariant scheduler load-tracking and capacity support arm: Enable max freq invariant scheduler load-tracking and capacity support DEBUG: sched: add energy procfs interface Dmitry Vyukov (1): BACKPORT: kernel: add kcov code coverage Eric Dumazet (1): BACKPORT: tcp: make challenge acks less predictable Hannes Frederic Sowa (1): ipv6: fix endianness error in icmpv6_err Jaganath Kanakkassery (1): UPSTREAM: Bluetooth: Fix potential NULL dereference in RFCOMM bind callback James Carr (1): Implement memory_state_time, used by qcom,cpubw Jason Low (1): sched, timer: Convert usages of ACCESS_ONCE() in the scheduler to READ_ONCE()/WRITE_ONCE() Joseph Lo (1): CHROMIUM: sched: update the average of nr_running Juri Lelli (13): arm64: Cpu invariant scheduler load-tracking and capacity support sched/fair: add triggers for OPP change requests sched/{core,fair}: trigger OPP change request on fork() sched/fair: cpufreq_sched triggers for load balancing FIXUP: sched: scheduler-driven cpu frequency selection FIXUP: sched/fair: jump to max OPP when crossing UP threshold DEBUG: sched: add tracepoint for cpu/freq scale invariance DEBUG: sched: add tracepoint for task load/util signals DEBUG: sched: add tracepoint for CPU load/util signals DEBUG: sched,cpufreq: add cpu_capacity change tracepoint sched/fair: add tunable to force selection at cpu granularity sched/cpufreq_sched: fix thermal capping events sched/fair: call OPP update when going idle after migration Kirill Tkhai (4): sched/deadline: Implement cancel_dl_timer() to use in switched_from_dl() sched/fair: Fix sched_entity::avg::decay_count initialization sched/dl: Prevent enqueue of a sleeping task in dl_task_timer() sched/core: Delete PF_EXITING checks from cpu_cgroup_exit() callback Lorenzo Colitti (1): net: ipv6: Fix ping to link-local addresses. Matt Wagantall (2): sched/rt: print RT tasks when RT throttling is activated sched/rt: Add Kconfig option to enable panicking for RT throttling Michael Turquette (2): cpufreq: introduce cpufreq_driver_is_slow sched: scheduler-driven cpu frequency selection Mike Galbraith (1): sched/fair: Beef up wake_wide() Morten Rasmussen (24): sched: Make sched entity usage tracking scale-invariant sched: Track group sched_entity usage contributions sched/fair: Convert arch_scale_cpu_capacity() from weak function to #define sched/fair: Initialize task load and utilization before placing task on rq sched: Add cpu capacity awareness to wakeup balancing sched: Consider spare cpu capacity at task wake-up sched: Prevent unnecessary active balance of single task in sched group sched: Documentation for scheduler energy cost model sched: Make energy awareness a sched feature sched: Introduce SD_SHARE_CAP_STATES sched_domain flag sched: Compute cpu capacity available at current frequency sched: Relocated cpu_util() and change return type sched: Highest energy aware balancing sched_domain level pointer sched: Calculate energy consumption of sched_group sched: Extend sched_group_energy to test load-balancing decisions sched: Estimate energy impact of scheduling decisions sched: Add over-utilization/tipping point indicator sched, cpuidle: Track cpuidle state index in the scheduler sched: Energy-aware wake-up task placement sched: Disable energy-unfriendly nohz kicks sched: Add per-cpu max capacity to sched_group_capacity sched: Add group_misfit_task load-balance type sched: Consider misfit tasks when load-balancing arm: Update arch_scale_cpu_capacity() to reflect change to define Patrick Bellasi (32): sched/tune: add detailed documentation sched/tune: add sysctl interface to define a boost value sched/fair: add function to convert boost value into "margin" sched/fair: add boosted CPU usage sched/tune: add initial support for CGroups based boosting sched/tune: compute and keep track of per CPU boost value sched/{fair,tune}: track RUNNABLE tasks impact on per CPU boost value sched/fair: add boosted task utilization sched/fair: keep track of energy/capacity variations sched/tune: add support to compute normalized energy sched/fair: filter energy_diff() based on energy_payoff value FIXUP: sched/tune: properly account of exiting tasks (only for kernel < v4.4) DEBUG: sched/tune: add tracepoint for SchedTune configuration update DEBUG: sched/tune: add tracepoint for CPU boost signal DEBUG: sched/tune: add tracepoint for schedtune_tasks_update() values DEBUG: sched/tune: add tracepoint on boostgroup updates DEBUG: sched/tune: add tracepoint for task boost signal DEBUG: sched/tune: add tracepoint for energy_diff() values DEBUG: sched/tune: add tracepoint on P-E space filtering FIXUP: sched: fix build for non-SMP target FIX: sched/tune: update usage of boosted task utilisation on CPU selection FIX: sched/tune: move schedtune_nornalize_energy into fair.c FIXUP: sched/tune: fix payoff calculation for boost region FIXUP: sched/tune: fix compilation error on !CONFIG_CGROUP_SCHEDTUNE sched/{fair,tune}: simplify fair.c code sched/tune: use a single initialisation function FIXUP: sched/tune: fix accounting for runnable tasks sched/tune: fix PB and PC cuts indexes definition FIXUP: sched: fix set_cfs_cpu_capacity when WALT is in use FIXUP: sched: fix SchedFreq integration for both PELT and WALT DEBUG: sched: add tracepoint for RD overutilized FIXUP: sched/tune: do initialization as a postcore_initicall Peter Zijlstra (15): sched/core: Validate rq_clock*() serialization sched/deadline: Fix deadline parameter modification handling sched/deadline: Fix stale yield state sched: Move the loadavg code to a more obvious location sched,dl: Fix sched class hopping CBS hole sched: Move code around sched: Fix a race between __kthread_bind() and sched_setaffinity() sched/fair: Make the entity load aging on attaching tunable sched/core: Remove unused argument from sched_class::task_move_group sched: Optimize freq invariant accounting sched/fair: Rename scale() to cap_scale() sched/fair: Optimize __update_load_avg() sched/fair: Optimize per entity utilization tracking sched/fair: Clean up the explanation around decaying load update misses UPSTREAM: sched: Fix a race between __kthread_bind() and sched_setaffinity() Preeti U Murthy (1): UPSTREAM: sched: Improve load balancing in the presence of idle CPUs Rafael J. Wysocki (2): UPSTREAM: PM / sleep: Re-implement suspend-to-idle handling UPSTREAM: cpuidle: Clean up fallback handling in cpuidle_idle_call() Rainer Weikusat (1): UPSTREAM: af_unix: Guard against other == sk in unix_dgram_sendmsg Ricky Liang (1): FIXUP: sched: scheduler-driven cpu frequency selection Robin Randhawa (3): Documentation: DT bindings for energy model cost data required by EAS sched: Support for extracting EAS energy costs from DT arm64, topology: Updates to use DT bindings for EAS costing data Ruchi Kandoi (1): power: Refactors the code which prints suspend time. Srinath Sridharan (8): sched/cpufreq_sched: Consolidated update sched: EAS: take cstate into account when selecting idle core sched/tune: Add support for negative boost values sched/walt: Accounting for number of irqs pending on each core sched/rt: Avoid moving rt task if destination CPU does not run low priority task sched/tune: Introducing a new schedtune attribute prefer_idle sched/fair: Picking cpus with low OPPs for tasks that prefer idle CPUs sched/fair: Favor higher cpus only for boosted tasks Srivatsa Vaddagiri (1): sched: Introduce Window Assisted Load Tracking (WALT) Steve Muckle (2): sched/fair: jump to max OPP when crossing UP threshold sched/cpufreq_sched: add trace events Sudeep Holla (1): arm64: defconfig: add few misc configs for development/debugging/testing Takashi Iwai (1): UPSTREAM: ALSA: timer: Fix race among timer ioctls Tejun Heo (2): cpumask, nodemask: implement cpumask/nodemask_pr_args() cgroup: reorder SUBSYS(blkio) in cgroup_subsys.h Thomas Gleixner (1): sched: deadline: Use hrtimer_start() Todd Kjos (6): sched/fair: add tunable to set initial task load sched/fair: optimize idle cpu selection for boosted tasks sched: EAS: Avoid causing spikes to max-freq unnecessarily FIXUP: sched/fair: Fix hang during suspend in sched_group_energy FIXUP: sched: Fix double-release of spinlock in move_queued_task sched: use util instead of capacity to select busy cpu Vincent Guittot (14): sched: Add sched_avg::utilization_avg_contrib sched: Calculate CPU's usage statistic and put it into struct sg_lb_stats::group_usage sched/fair: Implement update_blocked_averages() for CONFIG_FAIR_GROUP_SCHED=n sched/fair: Fix nohz.next_balance update sched: Make scale_rt invariant with frequency sched: Move CFS tasks to CPUs with higher capacity sched: Remove frequency scaling from cpu_capacity sched: Add struct rq::cpu_capacity_orig sched: Replace capacity_factor by usage sched: Remove unused struct sched_group_capacity::capacity_orig sched: remove call of sched_avg_update from sched_rt_avg_update sched: deadline: use deadline bandwidth in scale_rt_capacity sched: rt scheduler sets capacity requirement UPSTREAM: sched: Add SD_PREFER_SIBLING for SMT level Waiman Long (3): sched/fair: Avoid redundant idle_cpu() call in update_sg_lb_stats() sched/fair: Move the cache-hot 'load_avg' variable into its own cacheline sched/fair: Disable the task group load_avg update for the root_task_group Wanpeng Li (5): sched/deadline: Fix artificial overrun introduced by yield_task_dl() sched/deadline: Reschedule from switched_from_dl() after a successful pull sched/deadline: Don't check CONFIG_SMP in switched_from_dl() sched/deadline: Support DL task migration during CPU hotplug sched/fair: Fix stale overloaded status in the busiest group finding logic Winter Wang (1): UPSTREAM: usb: gadget: configfs: add mutex lock before unregister gadget Xunlei Pang (1): sched/fair: Fix the dealing with decay_count in __synchronize_entity_decay() Yao Dongdong (1): sched/core: Remove check of p->sched_class Yuyang Du (10): sched/fair: Remove rq's runnable avg sched/fair: Rewrite runnable load and utilization average tracking sched/fair: Init cfs_rq's sched_entity load average sched/fair: Remove task and group entity load when they are dead sched/fair: Provide runnable_load_avg back to cfs_rq sched/fair: Clean up load average references sched/fair: Fix overly small weight for interactive group entities sched/fair: Update task group's load_avg after task migration sched/fair: Fix new task's load avg removed from source CPU in wake_up_new_task() UPSTREAM: sched/fair: Avoid pulling all tasks in idle balancing Documentation/devicetree/bindings/misc/memory-state-time.txt | 8 + Documentation/devicetree/bindings/scheduler/sched-energy-costs.txt | 360 ++++++++++++ Documentation/kcov.txt | 111 ++++ Documentation/scheduler/sched-energy.txt | 362 ++++++++++++ Documentation/scheduler/sched-tune.txt | 367 ++++++++++++ Makefile | 11 +- android/configs/android-recommended.cfg | 1 + arch/arm/include/asm/topology.h | 7 + arch/arm/kernel/topology.c | 149 ++++- arch/arm64/configs/defconfig | 33 ++ arch/arm64/include/asm/topology.h | 9 + arch/arm64/kernel/topology.c | 81 +++ arch/x86/Kconfig | 6 + arch/x86/boot/Makefile | 10 +- arch/x86/boot/compressed/Makefile | 3 + arch/x86/kernel/Makefile | 6 + arch/x86/kernel/apic/Makefile | 4 + arch/x86/kernel/cpu/Makefile | 4 + arch/x86/lib/Makefile | 3 + arch/x86/mm/Makefile | 3 + arch/x86/realmode/rm/Makefile | 3 + drivers/cpufreq/Kconfig | 22 + drivers/cpufreq/cpufreq.c | 58 ++ drivers/cpuidle/cpuidle.c | 55 +- drivers/firmware/efi/libstub/Makefile | 3 + drivers/misc/Kconfig | 6 + drivers/misc/Makefile | 1 + drivers/misc/memory_state_time.c | 454 +++++++++++++++ drivers/usb/gadget/configfs.c | 2 + drivers/usb/gadget/function/f_accessory.c | 9 - fs/ecryptfs/file.c | 71 ++- include/linux/cgroup_subsys.h | 12 +- include/linux/cpufreq.h | 15 + include/linux/cpuidle.h | 7 +- include/linux/cpumask.h | 8 + include/linux/kcov.h | 29 + include/linux/kthread.h | 1 + include/linux/memory-state-time.h | 42 ++ include/linux/nodemask.h | 8 + include/linux/sched.h | 145 ++++- include/linux/sched/sysctl.h | 26 + include/linux/sched_energy.h | 44 ++ include/linux/suspend.h | 16 + include/linux/vmstat.h | 2 + include/net/fib_rules.h | 2 - include/trace/events/cpufreq_sched.h | 87 +++ include/trace/events/power.h | 8 + include/trace/events/sched.h | 511 +++++++++++++++++ include/uapi/linux/kcov.h | 10 + init/Kconfig | 53 ++ kernel/Makefile | 12 + kernel/exit.c | 7 + kernel/fork.c | 5 +- kernel/kcov.c | 273 +++++++++ kernel/kthread.c | 20 +- kernel/locking/Makefile | 3 + kernel/power/Makefile | 1 - kernel/power/suspend.c | 43 +- kernel/power/suspend_time.c | 111 ---- kernel/power/wakeup_reason.c | 63 +++ kernel/rcu/Makefile | 4 + kernel/sched/Makefile | 11 +- kernel/sched/auto_group.c | 2 +- kernel/sched/auto_group.h | 2 +- kernel/sched/core.c | 986 ++++++++++++++++++++++----------- kernel/sched/cpufreq_sched.c | 500 +++++++++++++++++ kernel/sched/cputime.c | 18 +- kernel/sched/deadline.c | 270 ++++++--- kernel/sched/debug.c | 42 +- kernel/sched/energy.c | 124 +++++ kernel/sched/fair.c | 2764 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++------------------------ kernel/sched/features.h | 13 +- kernel/sched/idle.c | 56 +- kernel/sched/{proc.c => loadavg.c} | 247 +-------- kernel/sched/rt.c | 115 +++- kernel/sched/sched.h | 358 +++++++++++- kernel/sched/stop_task.c | 3 + kernel/sched/tune.c | 967 ++++++++++++++++++++++++++++++++ kernel/sched/tune.h | 54 ++ kernel/sched/wait.c | 4 +- kernel/sched/walt.c | 1171 +++++++++++++++++++++++++++++++++++++++ kernel/sched/walt.h | 62 +++ kernel/sysctl.c | 73 +++ kernel/time/posix-cpu-timers.c | 8 +- kernel/workqueue.c | 6 +- lib/Kconfig.debug | 30 + lib/Makefile | 12 + mm/Makefile | 15 + mm/kasan/Makefile | 2 + mm/vmstat.c | 73 ++- net/bluetooth/rfcomm/sock.c | 20 +- net/ipv4/tcp_input.c | 12 +- net/ipv6/icmp.c | 2 +- net/ipv6/ping.c | 38 +- net/unix/af_unix.c | 7 +- scripts/Makefile.lib | 14 +- sound/core/timer.c | 32 +- 97 files changed, 10204 insertions(+), 1699 deletions(-) create mode 100644 Documentation/devicetree/bindings/misc/memory-state-time.txt create mode 100644 Documentation/devicetree/bindings/scheduler/sched-energy-costs.txt create mode 100644 Documentation/kcov.txt create mode 100644 Documentation/scheduler/sched-energy.txt create mode 100644 Documentation/scheduler/sched-tune.txt create mode 100644 drivers/misc/memory_state_time.c create mode 100644 include/linux/kcov.h create mode 100644 include/linux/memory-state-time.h create mode 100644 include/linux/sched_energy.h create mode 100644 include/trace/events/cpufreq_sched.h create mode 100644 include/uapi/linux/kcov.h create mode 100644 kernel/kcov.c delete mode 100644 kernel/power/suspend_time.c create mode 100644 kernel/sched/cpufreq_sched.c create mode 100644 kernel/sched/energy.c rename kernel/sched/{proc.c => loadavg.c} (62%) create mode 100644 kernel/sched/tune.c create mode 100644 kernel/sched/tune.h create mode 100644 kernel/sched/walt.c create mode 100644 kernel/sched/walt.h

9 years

[RFC PATCH v3 0/7] Pseudo-NMI for arm64 using ICC_PMR_EL1 (GICv3)

by Daniel Thompson

This patchset provides a pseudo-NMI for arm64 kernels by reimplementing the irqflags macros to modify the GIC PMR (the priority mask register accessible as a system register on GICv3 and later) rather than the PSR. The patchset includes an implementation of arch_trigger_all_cpu_backtrace() for arm64 allowing the new code to be exercised. The code works-for-me (tm) and is more "real" than the last time I shared these patches. However there remain a couple of limitations and caveats: 1. Requires GICv3+ hardware to be effective meaning it has mostly been tested using FVP. The alternatives runtime patching system is employed so systems with earlier GIC architectures are still bootable but will not benefit from NMI simulation. 2. FVP needs a bit of hacking to be able to run <SysRq-L> from an ISR. That's a shame because <SysRq-L> is a great way to observe an NMI preempting an IRQ handler. Testers are welcome to ping me offline and I will share the hacks I have been using to test with. v3: * Rebased on v4.8-rc2 * Restrict apply_alternatives_early() to consider only the capabilities needed for the kernel to function correctly (Will Deacon). * Added a bunch of notrace qualifiers (Will Deacon) * Used byte addressing to configure the interrupt priorities (Marc Zygnier) * Fixed implementation of interrupts_enabled() * Eliminated the over-zealous inclusion of <linux/irqchip/arm-gic-v3.h>. * Pushed a few symbol defintions towards the end of the patch series. v2: * Removed the isb instructions. The PMR is self-synchronizing so these are not needed (Dave Martin) * Use alternative runtime patching to allow the same kernel binary to boot systems with and without GICv3+ (Dave Martin). * Added code to properly distinguish between NMI and normal IRQ and to call into NMI handling code where needed. * Replaced the IPI backtrace logic with a newer version (from Russell King). Daniel Thompson (7): irqchip: gic-v3: Reset BPR during initialization arm64: Add support for on-demand backtrace of other CPUs arm64: cpufeature: Allow early detect of specific features arm64: alternative: Apply alternatives early in boot process arm64: irqflags: Reorder the fiq & async macros arm64: irqflags: Use ICC sysregs to implement IRQ masking arm64: Implement IPI_CPU_BACKTRACE using pseudo-NMIs arch/arm/include/asm/arch_gicv3.h | 6 ++ arch/arm64/Kconfig | 16 ++++ arch/arm64/include/asm/alternative.h | 1 + arch/arm64/include/asm/arch_gicv3.h | 57 +++++++++++++ arch/arm64/include/asm/assembler.h | 55 +++++++++++- arch/arm64/include/asm/hardirq.h | 2 +- arch/arm64/include/asm/irq.h | 3 + arch/arm64/include/asm/irqflags.h | 118 ++++++++++++++++++++++++-- arch/arm64/include/asm/ptrace.h | 23 +++++ arch/arm64/include/asm/smp.h | 2 + arch/arm64/kernel/alternative.c | 36 +++++++- arch/arm64/kernel/cpufeature.c | 92 +++++++++++--------- arch/arm64/kernel/entry.S | 151 +++++++++++++++++++++++++++------ arch/arm64/kernel/head.S | 35 ++++++++ arch/arm64/kernel/smp.c | 68 ++++++++++++++- arch/arm64/mm/proc.S | 23 +++++ drivers/irqchip/irq-gic-v3.c | 72 ++++++++++++++++ include/linux/irqchip/arm-gic-common.h | 8 ++ include/linux/irqchip/arm-gic.h | 5 -- lib/nmi_backtrace.c | 9 +- 20 files changed, 697 insertions(+), 85 deletions(-) -- 2.7.4

9 years

master build: 0 failures 1 warnings (v4.8-rc3-39-g61c0457)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.8-rc3-39-g61c0457 Commit: 61c04572de Merge branch 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Build Time: 91 min 46 sec Passed: 10 / 10 (100.00 %) Failed: 0 / 10 ( 0.00 %) Errors: 0 Warnings: 1 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 1 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 1 1 ../drivers/tty/serial/8250/8250_fintek.c:34:0: warning: "IRQ_MODE" redefined =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/tty/serial/8250/8250_fintek.c:34:0: warning: "IRQ_MODE" redefined ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

9 years

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

linaro-kernel