linaro-kernel April 2014

linaro-kernel@lists.linaro.org

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204 discussions

next boot: 46 pass, 0 fail (next-20140410)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: next Git describe: next-20140410 Full Report =========== omap2plus_defconfig ------------------- legacy,3730xm 0 min 57.4 sec: PASS am335x-boneblack 0 min 25.9 sec: PASS omap3-beagle-xm 1 min 0.2 sec: PASS legacy,3530beagle 0 min 55.9 sec: PASS (Warnings: 1) omap4-panda 1 min 11.3 sec: PASS omap3-overo-tobi 0 min 23.1 sec: PASS (Warnings: 1) am335x-bone 0 min 27.3 sec: PASS omap3-overo-storm-tobi 0 min 21.9 sec: PASS omap5-uevm 1 min 2.9 sec: PASS (Warnings: 1) omap4-panda-es 1 min 11.7 sec: PASS legacy,3730storm 0 min 23.0 sec: PASS legacy,3530overo 0 min 21.6 sec: PASS (Warnings: 1) multi_lpae_defconfig -------------------- omap5-uevm 1 min 40.3 sec: PASS (Warnings: 1) sun7i-a20-cubieboard2 0 min 12.1 sec: PASS tegra_defconfig --------------- tegra30-beaver 0 min 17.2 sec: PASS imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual 0 min 18.3 sec: PASS imx6dl-wandboard,wand-solo 0 min 19.1 sec: PASS imx6q-wandboard 0 min 17.1 sec: PASS sunxi_defconfig --------------- sun7i-a20-cubieboard2 0 min 22.8 sec: PASS sun4i-a10-cubieboard 0 min 17.8 sec: PASS bcm_defconfig ------------- bcm28155-ap 0 min 22.6 sec: PASS mvebu_v7_defconfig ------------------ armada-xp-openblocks-ax3-4 0 min 22.1 sec: PASS armada-370-mirabox 0 min 20.3 sec: PASS exynos_defconfig ---------------- exynos5420-arndale-octa 0 min 34.6 sec: PASS exynos5250-arndale 0 min 29.4 sec: PASS multi_v7_defconfig ------------------ qcom-apq8074-dragonboard 0 min 15.4 sec: PASS tegra30-beaver 0 min 17.1 sec: PASS am335x-boneblack 0 min 24.0 sec: PASS omap3-beagle-xm 0 min 53.3 sec: PASS sun7i-a20-cubieboard2 0 min 12.4 sec: PASS armada-370-mirabox 0 min 22.4 sec: PASS omap4-panda 1 min 10.6 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.3 sec: PASS sun4i-a10-cubieboard 0 min 18.9 sec: PASS bcm28155-ap 0 min 26.4 sec: PASS omap3-overo-tobi 0 min 22.1 sec: PASS (Warnings: 1) imx6dl-wandboard,wand-solo 0 min 18.0 sec: PASS am335x-bone 0 min 26.8 sec: PASS omap3-overo-storm-tobi 0 min 24.2 sec: PASS omap5-uevm 1 min 37.3 sec: PASS (Warnings: 1) imx6q-wandboard 0 min 16.9 sec: PASS omap4-panda-es 0 min 55.7 sec: PASS imx6dl-wandboard,wand-dual 0 min 18.4 sec: PASS sama5_defconfig --------------- sama5d35ek 0 min 17.3 sec: PASS davinci_all_defconfig --------------------- legacy,dm365evm 0 min 17.7 sec: PASS da850-evm 0 min 15.5 sec: PASS

10 years, 5 months

mainline boot: 43 pass, 1 fail (v3.14-12236-g39de65a)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: mainline Git describe: v3.14-12236-g39de65a Failed boot tests (console logs at the end) =========================================== bcm28155-ap: FAIL: multi_v7_defconfig Full Report =========== omap2plus_defconfig ------------------- legacy,3730xm 0 min 51.8 sec: PASS am335x-boneblack 0 min 25.9 sec: PASS omap3-beagle-xm 0 min 57.9 sec: PASS legacy,3530beagle 0 min 31.0 sec: PASS (Warnings: 1) omap4-panda 1 min 7.2 sec: PASS omap3-overo-tobi 0 min 26.6 sec: PASS (Warnings: 1) am335x-bone 0 min 27.6 sec: PASS omap3-overo-storm-tobi 0 min 25.0 sec: PASS omap5-uevm 1 min 5.6 sec: PASS (Warnings: 1) omap4-panda-es 1 min 6.6 sec: PASS legacy,3730storm 0 min 20.1 sec: PASS legacy,3530overo 0 min 21.5 sec: PASS (Warnings: 1) multi_lpae_defconfig -------------------- omap5-uevm 1 min 38.5 sec: PASS (Warnings: 1) sun7i-a20-cubieboard2 0 min 22.3 sec: PASS tegra_defconfig --------------- tegra30-beaver 0 min 17.3 sec: PASS imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual 0 min 18.7 sec: PASS imx6dl-wandboard,wand-solo 0 min 19.0 sec: PASS imx6q-wandboard 0 min 17.2 sec: PASS sunxi_defconfig --------------- sun7i-a20-cubieboard2 0 min 22.8 sec: PASS sun4i-a10-cubieboard 0 min 17.7 sec: PASS bcm_defconfig ------------- bcm28155-ap 0 min 23.3 sec: PASS mvebu_v7_defconfig ------------------ armada-xp-openblocks-ax3-4 0 min 22.4 sec: PASS armada-370-mirabox 0 min 20.3 sec: PASS exynos_defconfig ---------------- exynos5250-arndale 0 min 29.7 sec: PASS multi_v7_defconfig ------------------ qcom-apq8074-dragonboard 0 min 15.7 sec: PASS tegra30-beaver 0 min 17.3 sec: PASS am335x-boneblack 0 min 24.1 sec: PASS omap3-beagle-xm 0 min 47.6 sec: PASS sun7i-a20-cubieboard2 0 min 12.6 sec: PASS armada-370-mirabox 0 min 22.4 sec: PASS omap4-panda 0 min 53.3 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.1 sec: PASS sun4i-a10-cubieboard 0 min 14.5 sec: PASS bcm28155-ap 0 min 22.5 sec: FAIL omap3-overo-tobi 0 min 22.0 sec: PASS (Warnings: 1) imx6dl-wandboard,wand-solo 0 min 18.3 sec: PASS am335x-bone 0 min 26.8 sec: PASS omap3-overo-storm-tobi 0 min 23.9 sec: PASS omap5-uevm 1 min 39.1 sec: PASS (Warnings: 1) imx6q-wandboard 0 min 16.9 sec: PASS omap4-panda-es 0 min 52.4 sec: PASS imx6dl-wandboard,wand-dual 0 min 18.2 sec: PASS sama5_defconfig --------------- sama5d35ek 0 min 17.2 sec: PASS davinci_all_defconfig --------------------- legacy,dm365evm 0 min 17.5 sec: PASS Console logs for failures ========================= multi_v7_defconfig ------------------ bcm28155-ap: FAIL: last 80 lines of boot log: --------------------------------------------- [ 0.620000] ehci-orion: EHCI orion driver [ 0.620000] SPEAr-ehci: EHCI SPEAr driver [ 0.620000] tegra-ehci: Tegra EHCI driver [ 0.630000] usbcore: registered new interface driver usb-storage [ 0.630000] mousedev: PS/2 mouse device common for all mice [ 0.640000] i2c /dev entries driver [ 0.640000] bcm-kona-i2c 3e016000.i2c: device registered successfully [ 0.650000] bcm-kona-i2c 3e017000.i2c: device registered successfully [ 0.650000] bcm-kona-i2c 3e018000.i2c: device registered successfully [ 0.660000] bcm-kona-i2c 3500d000.i2c: device registered successfully [ 0.660000] usbcore: registered new interface driver uvcvideo [ 0.670000] USB Video Class driver (1.1.1) [ 0.670000] gspca_main: v2.14.0 registered [ 0.670000] sdhci: Secure Digital Host Controller Interface driver [ 0.680000] sdhci: Copyright(c) Pierre Ossman [ 0.680000] sdhci-pltfm: SDHCI platform and OF driver helper [ 0.710000] mmc0: no vqmmc regulator found [ 0.710000] mmc0: no vmmc regulator found [ 0.770000] mmc0: SDHCI controller on 3f190000.sdio [3f190000.sdio] using ADMA [ 0.770000] sdhci-kona 3f1b0000.sdio: Got CD GPIO #14. [ 0.800000] mmc1: no vqmmc regulator found [ 0.800000] mmc1: no vmmc regulator found [ 0.850000] mmc1: SDHCI controller on 3f1b0000.sdio [3f1b0000.sdio] using ADMA [ 0.850000] usbcore: registered new interface driver usbhid [ 0.860000] usbhid: USB HID core driver [ 0.860000] TCP: cubic registered [ 0.860000] NET: Registered protocol family 17 [ 0.870000] Key type dns_resolver registered [ 0.870000] ThumbEE CPU extension supported. [ 0.870000] Registering SWP/SWPB emulation handler [ 0.880000] PJ4 iWMMXt coprocessor enabled. [ 0.880000] /home/build/work/batch/drivers/rtc/hctosys.c: unable to open rtc device (rtc0) [ 0.890000] ALSA device list: [ 0.890000] No soundcards found. [ 0.890000] Waiting for root device /dev/mmcblk0p8... [ 0.910000] mmc0: BKOPS_EN bit is not set [ 0.920000] mmc0: new high speed MMC card at address 0001 [ 0.920000] mmcblk0: mmc0:0001 016G4A 14.8 GiB [ 0.930000] mmcblk0boot0: mmc0:0001 016G4A partition 1 2.00 MiB [ 0.930000] mmcblk0boot1: mmc0:0001 016G4A partition 2 2.00 MiB [ 0.940000] mmcblk0rpmb: mmc0:0001 016G4A partition 3 256 KiB [ 0.940000] Alternate GPT is invalid, using primary GPT. [ 0.950000] mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 [ 0.950000] mmcblk0boot1: unknown partition table [ 0.960000] mmcblk0boot0: unknown partition table [ 1.010000] EXT4-fs (mmcblk0p8): mounted filesystem with ordered data mode. Opts: (null) [ 1.020000] VFS: Mounted root (ext4 filesystem) readonly on device 179:8. [ 1.020000] devtmpfs: mounted [ 1.030000] Freeing unused kernel memory: 556K (c0a6e000 - c0af9000) [ 1.060000] Internal error: Oops - undefined instruction: 0 [#1] SMP ARM [ 1.060000] Alignment trap: not handling instruction e1923f9f at [<c07d2054>] [ 1.060000] Unhandled fault: alignment exception (0x001) at 0x20736eae [ 1.060000] Internal error: : 1 [#2] SMP ARM [ 1.060000] Modules linked in: [ 1.060000] CPU: 0 PID: 29042 Comm: %s [ 1.060000] Not tainted 3.14.0-12236-g39de65a #1 [ 1.060000] task: c09ab714 ti: ea838000 task.ti: 70737573 [ 1.060000] PC is at _raw_spin_lock_irqsave+0x14/0x4c [ 1.060000] LR is at __down_read_trylock+0x14/0x54 [ 1.060000] pc : [<c07d2058>] lr : [<c027cfb4>] psr: 40000193 [ 1.060000] sp : ea839f38 ip : ea83a020 fp : ea83a020 [ 1.060000] r10: 00000028 r9 : 20736eaa r8 : 0000017c [ 1.060000] r7 : c09ab714 r6 : 00000005 r5 : 20736eae r4 : 20736eaa [ 1.060000] r3 : 00000193 r2 : 20736eae r1 : 00000000 r0 : 40000193 [ 1.060000] Flags: nZcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user [ 1.060000] Control: 10c5387d Table: babf404a DAC: 00000015 [ 1.060000] Process %s [ 1.060000] (pid: 29042, stack limit = 0x707377c3) [ 1.060000] Stack: (0xea839f38 to 0x70739573) [ 1.060000] [<c07d2058>] (_raw_spin_lock_irqsave) from [<c027cfb4>] (__down_read_trylock+0x14/0x54) [ 1.060000] [<c027cfb4>] (__down_read_trylock) from [<c0217cd0>] (do_page_fault+0x78/0x27c) [ 1.060000] [<c0217cd0>] (do_page_fault) from [<c02083d4>] (do_DataAbort+0x38/0x98) [ 1.060000] Code: e10f0000 f10c0080 f592f000 e1923f9f (e2831801) [ 1.060000] ---[ end trace 4917642de33186d7 ]--- [ 1.060000] Alignment trap: not handling instruction e1923f9f at [<c07d2054>] [ 1.060000] Unhandled fault: alignment exception (0x001) at 0x20736eae ~$off # PYBOOT: Exception: userspace: failed to find root shell: Unhandled fault # PYBOOT: Time: 22.48 seconds. # PYBOOT: Result: FAIL

10 years, 5 months

mainline boot: 43 pass, 1 fail (v3.14-12042-g69cd9eb)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: mainline Git describe: v3.14-12042-g69cd9eb Failed boot tests (console logs at the end) =========================================== bcm28155-ap: FAIL: multi_v7_defconfig Full Report =========== omap2plus_defconfig ------------------- legacy,3730xm 0 min 57.5 sec: PASS am335x-boneblack 0 min 25.6 sec: PASS omap3-beagle-xm 1 min 3.2 sec: PASS legacy,3530beagle 0 min 43.2 sec: PASS (Warnings: 1) omap4-panda 1 min 10.2 sec: PASS omap3-overo-tobi 0 min 23.3 sec: PASS (Warnings: 1) am335x-bone 0 min 27.7 sec: PASS omap3-overo-storm-tobi 0 min 25.1 sec: PASS omap5-uevm 1 min 1.6 sec: PASS (Warnings: 1) omap4-panda-es 1 min 12.5 sec: PASS legacy,3730storm 0 min 24.0 sec: PASS legacy,3530overo 0 min 21.2 sec: PASS (Warnings: 1) multi_lpae_defconfig -------------------- omap5-uevm 1 min 33.5 sec: PASS (Warnings: 1) sun7i-a20-cubieboard2 0 min 12.3 sec: PASS tegra_defconfig --------------- tegra30-beaver 0 min 17.4 sec: PASS imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual 0 min 18.5 sec: PASS imx6dl-wandboard,wand-solo 0 min 18.8 sec: PASS imx6q-wandboard 0 min 17.1 sec: PASS sunxi_defconfig --------------- sun7i-a20-cubieboard2 0 min 22.8 sec: PASS sun4i-a10-cubieboard 0 min 17.7 sec: PASS bcm_defconfig ------------- bcm28155-ap 0 min 23.5 sec: PASS mvebu_v7_defconfig ------------------ armada-xp-openblocks-ax3-4 0 min 22.4 sec: PASS armada-370-mirabox 0 min 20.4 sec: PASS exynos_defconfig ---------------- exynos5250-arndale 0 min 30.0 sec: PASS multi_v7_defconfig ------------------ qcom-apq8074-dragonboard 0 min 16.5 sec: PASS tegra30-beaver 0 min 20.1 sec: PASS am335x-boneblack 0 min 24.1 sec: PASS omap3-beagle-xm 0 min 47.3 sec: PASS sun7i-a20-cubieboard2 0 min 12.2 sec: PASS armada-370-mirabox 0 min 22.4 sec: PASS omap4-panda 0 min 51.8 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.2 sec: PASS sun4i-a10-cubieboard 0 min 19.2 sec: PASS bcm28155-ap 0 min 23.6 sec: FAIL omap3-overo-tobi 0 min 22.2 sec: PASS (Warnings: 1) imx6dl-wandboard,wand-solo 0 min 18.1 sec: PASS am335x-bone 0 min 26.8 sec: PASS omap3-overo-storm-tobi 0 min 24.4 sec: PASS omap5-uevm 1 min 43.0 sec: PASS (Warnings: 1) imx6q-wandboard 0 min 17.1 sec: PASS omap4-panda-es 0 min 55.6 sec: PASS imx6dl-wandboard,wand-dual 0 min 17.9 sec: PASS sama5_defconfig --------------- sama5d35ek 0 min 17.2 sec: PASS davinci_all_defconfig --------------------- legacy,dm365evm 0 min 17.5 sec: PASS Console logs for failures ========================= multi_v7_defconfig ------------------ bcm28155-ap: FAIL: last 80 lines of boot log: --------------------------------------------- [ 0.620000] ehci-orion: EHCI orion driver [ 0.620000] SPEAr-ehci: EHCI SPEAr driver [ 0.620000] tegra-ehci: Tegra EHCI driver [ 0.630000] usbcore: registered new interface driver usb-storage [ 0.630000] mousedev: PS/2 mouse device common for all mice [ 0.640000] i2c /dev entries driver [ 0.640000] bcm-kona-i2c 3e016000.i2c: device registered successfully [ 0.650000] bcm-kona-i2c 3e017000.i2c: device registered successfully [ 0.650000] bcm-kona-i2c 3e018000.i2c: device registered successfully [ 0.660000] bcm-kona-i2c 3500d000.i2c: device registered successfully [ 0.660000] usbcore: registered new interface driver uvcvideo [ 0.670000] USB Video Class driver (1.1.1) [ 0.670000] gspca_main: v2.14.0 registered [ 0.670000] sdhci: Secure Digital Host Controller Interface driver [ 0.680000] sdhci: Copyright(c) Pierre Ossman [ 0.680000] sdhci-pltfm: SDHCI platform and OF driver helper [ 0.710000] mmc0: no vqmmc regulator found [ 0.710000] mmc0: no vmmc regulator found [ 0.770000] mmc0: SDHCI controller on 3f190000.sdio [3f190000.sdio] using ADMA [ 0.770000] sdhci-kona 3f1b0000.sdio: Got CD GPIO #14. [ 0.800000] mmc1: no vqmmc regulator found [ 0.800000] mmc1: no vmmc regulator found [ 0.850000] mmc1: SDHCI controller on 3f1b0000.sdio [3f1b0000.sdio] using ADMA [ 0.850000] usbcore: registered new interface driver usbhid [ 0.860000] usbhid: USB HID core driver [ 0.860000] TCP: cubic registered [ 0.860000] NET: Registered protocol family 17 [ 0.870000] Key type dns_resolver registered [ 0.870000] ThumbEE CPU extension supported. [ 0.870000] Registering SWP/SWPB emulation handler [ 0.880000] PJ4 iWMMXt coprocessor enabled. [ 0.880000] /home/build/work/batch/drivers/rtc/hctosys.c: unable to open rtc device (rtc0) [ 0.890000] ALSA device list: [ 0.890000] No soundcards found. [ 0.890000] Waiting for root device /dev/mmcblk0p8... [ 0.910000] mmc0: BKOPS_EN bit is not set [ 0.920000] mmc0: new high speed MMC card at address 0001 [ 0.920000] mmcblk0: mmc0:0001 016G4A 14.8 GiB [ 0.930000] mmcblk0boot0: mmc0:0001 016G4A partition 1 2.00 MiB [ 0.930000] mmcblk0boot1: mmc0:0001 016G4A partition 2 2.00 MiB [ 0.940000] mmcblk0rpmb: mmc0:0001 016G4A partition 3 256 KiB [ 0.940000] Alternate GPT is invalid, using primary GPT. [ 0.950000] mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 [ 0.950000] mmcblk0boot1: unknown partition table [ 0.960000] mmcblk0boot0: unknown partition table [ 1.010000] EXT4-fs (mmcblk0p8): mounted filesystem with ordered data mode. Opts: (null) [ 1.020000] VFS: Mounted root (ext4 filesystem) readonly on device 179:8. [ 1.020000] devtmpfs: mounted [ 1.030000] Freeing unused kernel memory: 556K (c0a6e000 - c0af9000) [ 1.060000] Internal error: Oops - undefined instruction: 0 [#1] SMP ARM [ 1.060000] Alignment trap: not handling instruction e1923f9f at [<c07d1bfc>] [ 1.060000] Unhandled fault: alignment exception (0x001) at 0x20736eae [ 1.060000] Internal error: : 1 [#2] SMP ARM [ 1.060000] Modules linked in: [ 1.060000] CPU: 0 PID: 29042 Comm: %s [ 1.060000] Not tainted 3.14.0-12042-g69cd9eb #1 [ 1.060000] task: c09ab4f4 ti: ea838000 task.ti: 70737573 [ 1.060000] PC is at _raw_spin_lock_irqsave+0x14/0x4c [ 1.060000] LR is at __down_read_trylock+0x14/0x54 [ 1.060000] pc : [<c07d1c00>] lr : [<c027cfb4>] psr: 40000193 [ 1.060000] sp : ea839f38 ip : ea83a020 fp : ea83a020 [ 1.060000] r10: 00000028 r9 : 20736eaa r8 : 0000017c [ 1.060000] r7 : c09ab4f4 r6 : 00000005 r5 : 20736eae r4 : 20736eaa [ 1.060000] r3 : 00000193 r2 : 20736eae r1 : 00000000 r0 : 40000193 [ 1.060000] Flags: nZcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user [ 1.060000] Control: 10c5387d Table: babf404a DAC: 00000015 [ 1.060000] Process %s [ 1.060000] (pid: 29042, stack limit = 0x707377c3) [ 1.060000] Stack: (0xea839f38 to 0x70739573) [ 1.060000] [<c07d1c00>] (_raw_spin_lock_irqsave) from [<c027cfb4>] (__down_read_trylock+0x14/0x54) [ 1.060000] [<c027cfb4>] (__down_read_trylock) from [<c0217cd0>] (do_page_fault+0x78/0x27c) [ 1.060000] [<c0217cd0>] (do_page_fault) from [<c02083d4>] (do_DataAbort+0x38/0x98) [ 1.060000] Code: e10f0000 f10c0080 f592f000 e1923f9f (e2831801) [ 1.060000] ---[ end trace 3fa06a5f76b8654e ]--- [ 1.060000] Alignment trap: not handling instruction e1923f9f at [<c07d1bfc>] [ 1.060000] Unhandled fault: alignment exception (0x001) at 0x20736eae ~$off # PYBOOT: Exception: userspace: failed to find root shell: Unhandled fault # PYBOOT: Time: 23.59 seconds. # PYBOOT: Result: FAIL

10 years, 5 months

mainline boot: 43 pass, 1 fail (v3.14-12041-g75ff24f)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: mainline Git describe: v3.14-12041-g75ff24f Failed boot tests (console logs at the end) =========================================== bcm28155-ap: FAIL: multi_v7_defconfig Full Report =========== omap2plus_defconfig ------------------- legacy,3730xm 0 min 53.7 sec: PASS am335x-boneblack 0 min 25.9 sec: PASS omap3-beagle-xm 1 min 1.0 sec: PASS legacy,3530beagle 0 min 36.2 sec: PASS (Warnings: 1) omap4-panda 1 min 10.0 sec: PASS omap3-overo-tobi 0 min 23.5 sec: PASS (Warnings: 1) am335x-bone 0 min 27.5 sec: PASS omap3-overo-storm-tobi 0 min 21.8 sec: PASS omap5-uevm 1 min 6.2 sec: PASS (Warnings: 1) omap4-panda-es 1 min 11.5 sec: PASS legacy,3730storm 0 min 22.8 sec: PASS legacy,3530overo 0 min 21.4 sec: PASS (Warnings: 1) multi_lpae_defconfig -------------------- omap5-uevm 1 min 41.0 sec: PASS (Warnings: 1) sun7i-a20-cubieboard2 0 min 12.1 sec: PASS tegra_defconfig --------------- tegra30-beaver 0 min 17.2 sec: PASS imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual 0 min 18.8 sec: PASS imx6dl-wandboard,wand-solo 0 min 18.9 sec: PASS imx6q-wandboard 0 min 17.2 sec: PASS sunxi_defconfig --------------- sun7i-a20-cubieboard2 0 min 22.8 sec: PASS sun4i-a10-cubieboard 0 min 16.1 sec: PASS bcm_defconfig ------------- bcm28155-ap 0 min 23.7 sec: PASS mvebu_v7_defconfig ------------------ armada-xp-openblocks-ax3-4 0 min 22.2 sec: PASS armada-370-mirabox 0 min 20.3 sec: PASS exynos_defconfig ---------------- exynos5250-arndale 0 min 28.9 sec: PASS multi_v7_defconfig ------------------ qcom-apq8074-dragonboard 0 min 16.4 sec: PASS tegra30-beaver 0 min 24.6 sec: PASS am335x-boneblack 0 min 24.1 sec: PASS omap3-beagle-xm 0 min 48.7 sec: PASS sun7i-a20-cubieboard2 0 min 12.3 sec: PASS armada-370-mirabox 0 min 22.4 sec: PASS omap4-panda 1 min 2.0 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.7 sec: PASS sun4i-a10-cubieboard 0 min 14.5 sec: PASS bcm28155-ap 0 min 23.4 sec: FAIL omap3-overo-tobi 0 min 22.3 sec: PASS (Warnings: 1) imx6dl-wandboard,wand-solo 0 min 18.2 sec: PASS am335x-bone 0 min 31.8 sec: PASS omap3-overo-storm-tobi 0 min 24.4 sec: PASS omap5-uevm 1 min 41.8 sec: PASS (Warnings: 1) imx6q-wandboard 0 min 17.4 sec: PASS omap4-panda-es 0 min 55.6 sec: PASS imx6dl-wandboard,wand-dual 0 min 18.4 sec: PASS sama5_defconfig --------------- sama5d35ek 0 min 17.4 sec: PASS davinci_all_defconfig --------------------- legacy,dm365evm 0 min 17.5 sec: PASS Console logs for failures ========================= multi_v7_defconfig ------------------ bcm28155-ap: FAIL: last 80 lines of boot log: --------------------------------------------- [ 0.620000] ehci-orion: EHCI orion driver [ 0.620000] SPEAr-ehci: EHCI SPEAr driver [ 0.620000] tegra-ehci: Tegra EHCI driver [ 0.630000] usbcore: registered new interface driver usb-storage [ 0.630000] mousedev: PS/2 mouse device common for all mice [ 0.640000] i2c /dev entries driver [ 0.640000] bcm-kona-i2c 3e016000.i2c: device registered successfully [ 0.650000] bcm-kona-i2c 3e017000.i2c: device registered successfully [ 0.650000] bcm-kona-i2c 3e018000.i2c: device registered successfully [ 0.660000] bcm-kona-i2c 3500d000.i2c: device registered successfully [ 0.660000] usbcore: registered new interface driver uvcvideo [ 0.670000] USB Video Class driver (1.1.1) [ 0.670000] gspca_main: v2.14.0 registered [ 0.670000] sdhci: Secure Digital Host Controller Interface driver [ 0.680000] sdhci: Copyright(c) Pierre Ossman [ 0.680000] sdhci-pltfm: SDHCI platform and OF driver helper [ 0.710000] mmc0: no vqmmc regulator found [ 0.710000] mmc0: no vmmc regulator found [ 0.770000] mmc0: SDHCI controller on 3f190000.sdio [3f190000.sdio] using ADMA [ 0.770000] sdhci-kona 3f1b0000.sdio: Got CD GPIO #14. [ 0.800000] mmc1: no vqmmc regulator found [ 0.800000] mmc1: no vmmc regulator found [ 0.850000] mmc1: SDHCI controller on 3f1b0000.sdio [3f1b0000.sdio] using ADMA [ 0.850000] usbcore: registered new interface driver usbhid [ 0.860000] usbhid: USB HID core driver [ 0.860000] TCP: cubic registered [ 0.860000] NET: Registered protocol family 17 [ 0.870000] Key type dns_resolver registered [ 0.870000] ThumbEE CPU extension supported. [ 0.870000] Registering SWP/SWPB emulation handler [ 0.880000] PJ4 iWMMXt coprocessor enabled. [ 0.880000] /home/build/work/batch/drivers/rtc/hctosys.c: unable to open rtc device (rtc0) [ 0.890000] ALSA device list: [ 0.890000] No soundcards found. [ 0.890000] Waiting for root device /dev/mmcblk0p8... [ 0.910000] mmc0: BKOPS_EN bit is not set [ 0.920000] mmc0: new high speed MMC card at address 0001 [ 0.920000] mmcblk0: mmc0:0001 016G4A 14.8 GiB [ 0.930000] mmcblk0boot0: mmc0:0001 016G4A partition 1 2.00 MiB [ 0.930000] mmcblk0boot1: mmc0:0001 016G4A partition 2 2.00 MiB [ 0.940000] mmcblk0rpmb: mmc0:0001 016G4A partition 3 256 KiB [ 0.940000] Alternate GPT is invalid, using primary GPT. [ 0.950000] mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 [ 0.950000] mmcblk0boot1: unknown partition table [ 0.960000] mmcblk0boot0: unknown partition table [ 1.010000] EXT4-fs (mmcblk0p8): mounted filesystem with ordered data mode. Opts: (null) [ 1.020000] VFS: Mounted root (ext4 filesystem) readonly on device 179:8. [ 1.020000] devtmpfs: mounted [ 1.030000] Freeing unused kernel memory: 556K (c0a6e000 - c0af9000) [ 1.060000] Internal error: Oops - undefined instruction: 0 [#1] SMP ARM [ 1.060000] Alignment trap: not handling instruction e1923f9f at [<c07d1b7c>] [ 1.060000] Unhandled fault: alignment exception (0x001) at 0x20736eae [ 1.060000] Internal error: : 1 [#2] SMP ARM [ 1.060000] Modules linked in: [ 1.060000] CPU: 0 PID: 29042 Comm: %s [ 1.060000] Not tainted 3.14.0-12041-g75ff24f #1 [ 1.060000] task: c09ab4f4 ti: ea838000 task.ti: 70737573 [ 1.060000] PC is at _raw_spin_lock_irqsave+0x14/0x4c [ 1.060000] LR is at __down_read_trylock+0x14/0x54 [ 1.060000] pc : [<c07d1b80>] lr : [<c027cfb4>] psr: 40000193 [ 1.060000] sp : ea839f38 ip : ea83a020 fp : ea83a020 [ 1.060000] r10: 00000028 r9 : 20736eaa r8 : 0000017c [ 1.060000] r7 : c09ab4f4 r6 : 00000005 r5 : 20736eae r4 : 20736eaa [ 1.060000] r3 : 00000193 r2 : 20736eae r1 : 00000000 r0 : 40000193 [ 1.060000] Flags: nZcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user [ 1.060000] Control: 10c5387d Table: babf404a DAC: 00000015 [ 1.060000] Process %s [ 1.060000] (pid: 29042, stack limit = 0x707377c3) [ 1.060000] Stack: (0xea839f38 to 0x70739573) [ 1.060000] [<c07d1b80>] (_raw_spin_lock_irqsave) from [<c027cfb4>] (__down_read_trylock+0x14/0x54) [ 1.060000] [<c027cfb4>] (__down_read_trylock) from [<c0217cd0>] (do_page_fault+0x78/0x27c) [ 1.060000] [<c0217cd0>] (do_page_fault) from [<c02083d4>] (do_DataAbort+0x38/0x98) [ 1.060000] Code: e10f0000 f10c0080 f592f000 e1923f9f (e2831801) [ 1.060000] ---[ end trace db73f9310cb11a77 ]--- [ 1.060000] Alignment trap: not handling instruction e1923f9f at [<c07d1b7c>] [ 1.060000] Unhandled fault: alignment exception (0x001) at 0x20736eae ~$off # PYBOOT: Exception: userspace: failed to find root shell: Unhandled fault # PYBOOT: Time: 23.45 seconds. # PYBOOT: Result: FAIL

10 years, 5 months

[RFC PATCH] ARM: uprobes need icache flush after xol write

by Victor Kamensky

Hi Dave, Oleg, and All, Short story =========== It seems to me that ARMv7 uprobes need proper icache flush after xol write. Please look at [1] discussion for similar issue on ppc. It seems that flush_dcache_page was sufficient for latter architectures of PPC but it does not look that it is good enough for ARMv7. AFAIK know ARM V7 does not have "snooping Harvard caches" and needs something like __cpuc_coherent_user_range function call to sync up icache and dcache after instruction write through dcache. Patch that I propose follows this cover letter. There I introduced weak arch_uprobe_xol_sync_dcache_icache function that does traditional flush_dcache_page call and I redefined this function to __cpuc_coherent_user_range call in ARM v7 > case. [1] http://linux-kernel.2935.n7.nabble.com/Re-PATCH-6-9-uprobes-flush-cache-aft… Longer story ============ I was trying Dave's armv7 uprobes with SystemTap on Arndale board. I used Linaro linux branch 3.14 based that contained Dave's armv7 uprobes topic code. I believe it should be pretty much the same as armv7 uprobes code that went to Russell's tree. I was able to do one function simple test - it worked fine for me. But when I've tried to run many function like "probe process("foobar").function("*")" probe SystemTap my target process always crashed. After quite a bit of chasing the issue, I was able to come up with test case that shows several probes installed against 'ls' process. First probe placed at 'push {r4, r5, r6, r7, r8, r9, r10, r11, lr}' instruction, which is first in _getopt_initialize function, then script adds few more probes at _getopt_initialize addresses that are executed latter. And in those probes I dump registers set and top of stack. By looking at execution of script one may easily conclude that it looks like that for each probe 'push {r4, r5, r6, r7, r8, r9, r10, r11, lr}' instruction is always executed - one may see 36 bytes increase of stack size and see copy of corresponding registers on the stack. The code path is the following: handle_swbp -> pre_ssout pre_ssout -> xol_get_insn_slot xol_get_insn_slot -> copy_to_page xol_get_insn_slot -> flush_dcache_page pre_ssout -> arch_uprobe_pre_xol pre_ssout function calls xol_get_insn_slot which finds available slot in XOL area, that is mapped into user process and copies required instruction into xol slot. After that it calls flush_dcache_page, but icache is not flushed in ARM case by this function. So I think the following thing happens: first time first xol slot got 'push {r4, r5, r6, r7, r8, r9, r10, r11, lr}' instruction and it retrieved into icache. Latter when other probes are executed the same first slot of xol area it will get different instruction but because icache is not flushed CPU keep executing 'push' instruction. When I add the following testing patch that flush icache in arch_uprobe_pre_xol [kamensky@kamensky-w530 git]$ git diff diff --git a/arch/arm/kernel/uprobes.c b/arch/arm/kernel/uprobes.c index f9bacee..ef34623 100644 --- a/arch/arm/kernel/uprobes.c +++ b/arch/arm/kernel/uprobes.c @@ -117,6 +117,8 @@ int arch_uprobe_pre_xol(struct arch_uprobe *auprobe, struct pt_regs *regs) { struct uprobe_task *utask = current->utask; + __flush_icache_all(); + if (auprobe->prehandler) auprobe->prehandler(auprobe, &utask->autask, regs); it fixes my test problem, 'ls' executes fine, I am able to trace it with "process("foobar").function("*")" traces. Having complete icache flush is far from optimal. I was looking for better and more optimal and targeted icache flush. In discussion [1] and corresponding commit it was alluded that flush_icache_user_range should help but I don't think it will work for ARMv7. It seems that for ARMv7 flush_icache_user_range is not quite correct - it calls again 'flush_dcache_page(page)' which I don't think touches icache (other strange thing that it ignores len completely). I looked at armv7 kprobes code, in similar area arch_prepare_kprobe function calls arch_prepare_kprobe which calls flush_insn macro which is defined as call flush_icache_range, which in turn defines as __cpuc_coherent_kern_range(s,e). I looked at ptrace breakpoint write code as well that deals with similar issue. As far as I see it seems that the best function to sync up icache and dcache of user land process is to use __cpuc_coherent_user_range function which sync up dcache and icache memory region of given size and at given address on current core. In case of Arndale it goes through v7_coherent_user_range function. Given uprobes single step like use case it seem syncing up cache on current core is sufficient. If someone can confirm that __cpuc_coherent_user_range is right choice for this situation it would be nice. Test shows it work, we would need to know for sure. Next issue is how to integrate this call with cpu independent uprobes code. I introduced week arch_uprobe_xol_sync_dcache_icache function that calls flush_dcache_page as before, and for ARMv7 defined one that calls __cpuc_coherent_user_range. As far I understand flush_dcache_page was introduced for some relatively recent ppc CPU, it seems to be noop on x86. I was thinking that default weak version of arch_uprobe_xol_sync_dcache_icache should be empty and ppc define one that calls flush_dcache_page. But I have no way to test ppc case so I decided do conservative implementation and keep default version calling flush_dcache_page as it was before. Thanks, Victor Appendix: Test case that shows push instruction executed several times ====================================================================== SystemTap test script --------------------- root@genericarmv7a:~/systemtap/test# cat ls_t4_not_r4.stp function print_memory(addr:long, size:long) { i = 0; addr2 = addr; while (i < size) { printf("0x%8.8x: ", addr2); while (i < size) { printf ("0x%8.8x ", user_uint32(addr2)); addr2 = addr2 + 4; i = i + 4; if (i%16 == 0) { break; } } printf("\n"); } } probe process("/bin/ls.coreutils").function("_getopt_initialize") { sp = register("sp"); print_memory(sp, 64); print_regs(); printf("-> _getopt_initialize\n"); } probe process("/bin/ls.coreutils").statement(0x0001b2e8) { sp = register("sp"); print_memory(sp, 64); print_regs(); printf("-> 0x0001b2e8\n"); } probe process("/bin/ls.coreutils").statement(0x0001b2d8) { sp = register("sp"); print_memory(sp, 64); print_regs(); printf("-> 0x0001b2d8\n"); } probe process("/bin/ls.coreutils").statement(0x0001b408) { sp = register("sp"); print_memory(sp, 64); print_regs(); printf("-> 0x0001b408\n"); } probe process("/bin/ls.coreutils").function("_getopt_internal_r") { // sp = register("sp"); // print_memory(sp, 64); print_regs(); printf("-> _getopt_internal_r\n"); } execution of script ------------------- Look at log of script execution. Check how $sp changes at each probe (+36). And see that r4, r5, r6, r7, r8, r9, r10, r11, lr registers are always at top of stack. root@genericarmv7a:~/systemtap/test# stap -U -v ls_t4_not_r4.stp Pass 1: parsed user script and 100 library script(s) using 20520virt/16336res/1728shr/15260data kb, in 410usr/30sys/437real ms. Pass 2: analyzed script: 5 probe(s), 8 function(s), 3 embed(s), 2 global(s) using 21984virt/18568res/2620shr/16724data kb, in 1280usr/870sys/2507real ms. Pass 3: translated to C into "/tmp/stapPmXkE6/stap_06d9647b8c7b3327fecfc3259c39e0ed_6448_src.c" using 21984virt/18796res/2848shr/16724data kb, in 70usr/260sys/330real ms. Pass 4: compiled C into "stap_06d9647b8c7b3327fecfc3259c39e0ed_6448.ko" in 16050usr/1290sys/18328real ms. Pass 5: starting run. CPU: 1pc : [<0001b2cc>] lr : [<0001c1ac>] sp : 7eeb2940 ip : 00000001 fp : 0002a2d8 r10: 76ffe000 r9 : 0002a2d8 r8 : 7eeb29c4 r7 : 00000000 r6 : 00000000 r5 : 0002a2b0 r4 : 0002af40 r3 : 0001e914 r2 : 00020dc4 r1 : 7eeb2de4 r0 : 00000001 Flags: nZCv IRQs on FIQs on Mode USER_32 Segment user Control: 30C5387D Table: AC5A14C0 DAC: 55555555 -> _getopt_internal_r 0x7eeb28d8: 0xffffffff 0x00000000 0x76e97e34 0x76ffb8f8 0x7eeb28e8: 0x00000000 0x00000038 0x00000000 0x76f560c8 0x7eeb28f8: 0x00000077 0x00001500 0x00000005 0x000018b2 0x7eeb2908: 0x00000a3b 0x7f1c0300 0x01000415 0x76ffa4c0 CPU: 1pc : [<0001b2d8>] lr : [<0001c1ac>] sp : 7eeb28d8 ip : 00000001 fp : 0002a2d8 r10: 00000001 r9 : 0002a2d8 r8 : 7eeb29c4 r7 : 00000000 r6 : 00000000 r5 : 0002a2b0 r4 : 0002af40 r3 : 0001e914 r2 : 00020dc4 r1 : 7eeb2de4 r0 : 00000001 Flags: nzCv IRQs on FIQs on Mode USER_32 Segment user Control: 30C5387D Table: AC5A14C0 DAC: 55555555 -> 0x0001b2d8 0x7eeb28b4: 0x0002af40 0x0002a2b0 0x00000000 0x00000000 0x7eeb28c4: 0x7eeb29c4 0x0002a2d8 0x7eeb2de4 0x0001e914 0x7eeb28d4: 0x0001c1ac 0xffffffff 0x00000000 0x76e97e34 0x7eeb28e4: 0x76ffb8f8 0x00000000 0x00000038 0x00000000 CPU: 1pc : [<0001b2e8>] lr : [<0001c1ac>] sp : 7eeb28b4 ip : 00000001 fp : 0002a2d8 r10: 00000001 r9 : 0002a2d8 r8 : 7eeb29c4 r7 : 00000000 r6 : 00000000 r5 : 0002a2b0 r4 : 0002af40 r3 : 00000001 r2 : 00020dc4 r1 : 7eeb2de4 r0 : 00000001 Flags: nzCv IRQs on FIQs on Mode USER_32 Segment user Control: 30C5387D Table: AC5A14C0 DAC: 55555555 -> 0x0001b2e8 0x7eeb2890: 0x0002af40 0x0002a2b0 0x00000000 0x00000000 0x7eeb28a0: 0x7eeb29c4 0x00000001 0x00000001 0x0002a2d8 0x7eeb28b0: 0x0001c1ac 0x0002af40 0x0002a2b0 0x00000000 0x7eeb28c0: 0x00000000 0x7eeb29c4 0x0002a2d8 0x7eeb2de4 CPU: 1pc : [<0001b3f8>] lr : [<0001c1ac>] sp : 7eeb2890 ip : 00000001 fp : 0002a2d8 r10: 00000001 r9 : 0002a2d8 r8 : 7eeb29c4 r7 : 00000000 r6 : 00000000 r5 : 0002a2b0 r4 : 0002af40 r3 : 00000001 r2 : 00000000 r1 : 7eeb2de4 r0 : 00000001 Flags: nZCv IRQs on FIQs on Mode USER_32 Segment user Control: 30C5387D Table: AC5A14C0 DAC: 55555555 -> _getopt_initialize 0x7eeb286c: 0x0002af40 0x0002a2b0 0x00000000 0x00000000 0x7eeb287c: 0x7eeb29c4 0x0002a2d8 0x00000001 0x0002a2d8 0x7eeb288c: 0x0001c1ac 0x0002af40 0x0002a2b0 0x00000000 0x7eeb289c: 0x00000000 0x7eeb29c4 0x00000001 0x00000001 CPU: 1pc : [<0001b408>] lr : [<0001c1ac>] sp : 7eeb286c ip : 00000001 fp : 0002a2d8 r10: 00000001 r9 : 0002a2d8 r8 : 7eeb29c4 r7 : 00000000 r6 : 00000000 r5 : 0002a2b0 r4 : 0002af40 r3 : 00000001 r2 : 00000000 r1 : 7eeb2de4 r0 : 00000001 Flags: nzCv IRQs on FIQs on Mode USER_32 Segment user Control: 30C5387D Table: AC5A14C0 DAC: 55555555 -> 0x0001b408 gdb session of crashed ls command ================================= Looking at core of crashed ls process. Look at disassemble of function you can see uprobe breakpoints as <UNDEFINED> instruction. For instructions that should be there and which are executed through xol look at next section. root@genericarmv7a:~# gdb /bin/ls.coreutils -c core GNU gdb (Linaro GDB) 7.6.1-2013.10 Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "arm-oe-linux-gnueabi". For bug reporting instructions, please see: <http://bugs.launchpad.net/gdb-linaro/>... Reading symbols from /bin/ls.coreutils...Reading symbols from /bin/.debug/ls.coreutils...done. done. warning: core file may not match specified executable file. [New LWP 12424] Core was generated by `ls'. Program terminated with signal 11, Segmentation fault. #0 _getopt_initialize (argc=1, argv=0x7eeb29c4, posixly_correct=175936, d=0x2af40 <getopt_data>, optstring=0x2a2b0 <rpl_optind> "\001") at lib/getopt.c:241 241 if (optstring[0] == '-') (gdb) bt #0 _getopt_initialize (argc=1, argv=0x7eeb29c4, posixly_correct=175936, d=0x2af40 <getopt_data>, optstring=0x2a2b0 <rpl_optind> "\001") at lib/getopt.c:241 #1 _getopt_internal_r (argc=1, argv=0x7eeb29c4, optstring=0x2a2b0 <rpl_optind> "\001", longopts=0x2a2d8 <interrupt_signal>, longind=0x1c1ac <rpl_getopt_internal+72>, long_only=175936, d=0x2a2b0 <rpl_optind>, posixly_correct=0) at lib/getopt.c:361 #2 0x0002a2d8 in ?? () Cannot access memory at address 0x1 #3 0x0002a2d8 in ?? () Cannot access memory at address 0x1 Backtrace stopped: previous frame identical to this frame (corrupt stack?) (gdb) info reg r0 0x1 1 r1 0x7eeb2de4 2129341924 r2 0x0 0 r3 0x1 1 r4 0x2af40 175936 r5 0x2a2b0 172720 r6 0x0 0 r7 0x0 0 r8 0x7eeb29c4 2129340868 r9 0x2a2d8 172760 r10 0x1 1 r11 0x2a2d8 172760 r12 0x0 0 sp 0x7eeb2848 0x7eeb2848 lr 0x1c1ac 115116 pc 0x1b420 0x1b420 <_getopt_internal_r+340> cpsr 0x200f0010 537853968 (gdb) set height 0 (gdb) disassemble _getopt_internal_r Dump of assembler code for function _getopt_internal_r: 0x0001b2cc <+0>: ; <UNDEFINED> instruction: 0xe7f001f9 0x0001b2d0 <+4>: sub sp, sp, #68 ; 0x44 0x0001b2d4 <+8>: subs r10, r0, #0 0x0001b2d8 <+12>: ; <UNDEFINED> instruction: 0xe7f001f9 0x0001b2dc <+16>: str r3, [sp, #28] 0x0001b2e0 <+20>: str r1, [sp, #24] 0x0001b2e4 <+24>: ldr r3, [r4, #4] 0x0001b2e8 <+28>: ; <UNDEFINED> instruction: 0xe7f001f9 0x0001b2ec <+32>: str r3, [sp, #20] 0x0001b2f0 <+36>: ble 0x1b4f8 <_getopt_internal_r+556> 0x0001b2f4 <+40>: ldr r3, [r4] 0x0001b2f8 <+44>: mov r2, #0 0x0001b2fc <+48>: str r2, [r4, #12] 0x0001b300 <+52>: cmp r3, r2 0x0001b304 <+56>: beq 0x1b3f0 <_getopt_internal_r+292> 0x0001b308 <+60>: ldr r2, [r4, #16] 0x0001b30c <+64>: cmp r2, #0 0x0001b310 <+68>: beq 0x1b3f8 <_getopt_internal_r+300> 0x0001b314 <+72>: ldr r5, [sp, #12] 0x0001b318 <+76>: ldrb r3, [r5] 0x0001b31c <+80>: cmp r3, #45 ; 0x2d 0x0001b320 <+84>: cmpne r3, #43 ; 0x2b 0x0001b324 <+88>: ldrbeq r3, [r5, #1] 0x0001b328 <+92>: addeq r5, r5, #1 0x0001b32c <+96>: streq r5, [sp, #12] 0x0001b330 <+100>: cmp r3, #58 ; 0x3a 0x0001b334 <+104>: ldr r9, [r4, #20] 0x0001b338 <+108>: ldr r12, [sp, #20] 0x0001b33c <+112>: moveq r12, #0 0x0001b340 <+116>: cmp r9, #0 0x0001b344 <+120>: str r12, [sp, #20] 0x0001b348 <+124>: beq 0x1b458 <_getopt_internal_r+396> 0x0001b34c <+128>: ldrb r3, [r9] 0x0001b350 <+132>: cmp r3, #0 0x0001b354 <+136>: beq 0x1b458 <_getopt_internal_r+396> 0x0001b358 <+140>: str r9, [sp, #16] 0x0001b35c <+144>: ldr r12, [sp, #28] 0x0001b360 <+148>: cmp r12, #0 0x0001b364 <+152>: beq 0x1b880 <_getopt_internal_r+1460> 0x0001b368 <+156>: ldr r3, [r4] 0x0001b36c <+160>: ldr r5, [sp, #24] 0x0001b370 <+164>: str r3, [sp, #32] 0x0001b374 <+168>: ldr r3, [r5, r3, lsl #2] 0x0001b378 <+172>: ldrb r1, [r3, #1] 0x0001b37c <+176>: cmp r1, #45 ; 0x2d 0x0001b380 <+180>: beq 0x1b564 <_getopt_internal_r+664> 0x0001b384 <+184>: ldr r12, [sp, #108] ; 0x6c 0x0001b388 <+188>: cmp r12, #0 0x0001b38c <+192>: bne 0x1b548 <_getopt_internal_r+636> 0x0001b390 <+196>: ldr r9, [sp, #16] 0x0001b394 <+200>: add r6, r9, #1 0x0001b398 <+204>: str r6, [r4, #20] 0x0001b39c <+208>: ldrb r5, [r9] 0x0001b3a0 <+212>: ldr r0, [sp, #12] 0x0001b3a4 <+216>: mov r1, r5 0x0001b3a8 <+220>: bl 0x9db4 <strchr> 0x0001b3ac <+224>: ldrb r3, [r6] 0x0001b3b0 <+228>: cmp r3, #0 0x0001b3b4 <+232>: ldreq r3, [r4] 0x0001b3b8 <+236>: addeq r3, r3, #1 0x0001b3bc <+240>: streq r3, [r4] 0x0001b3c0 <+244>: sub r3, r5, #58 ; 0x3a 0x0001b3c4 <+248>: cmp r0, #0 0x0001b3c8 <+252>: cmpne r3, #1 0x0001b3cc <+256>: bhi 0x1b6f0 <_getopt_internal_r+1060> 0x0001b3d0 <+260>: ldr r12, [sp, #20] 0x0001b3d4 <+264>: cmp r12, #0 0x0001b3d8 <+268>: bne 0x1b6b0 <_getopt_internal_r+996> 0x0001b3dc <+272>: mov r1, #63 ; 0x3f 0x0001b3e0 <+276>: str r5, [r4, #8] 0x0001b3e4 <+280>: mov r0, r1 0x0001b3e8 <+284>: add sp, sp, #68 ; 0x44 0x0001b3ec <+288>: pop {r4, r5, r6, r7, r8, r9, r10, r11, pc} 0x0001b3f0 <+292>: mov r3, #1 0x0001b3f4 <+296>: str r3, [r4] 0x0001b3f8 <+300>: ; <UNDEFINED> instruction: 0xe7f001f9 0x0001b3fc <+304>: str r3, [r4, #36] ; 0x24 0x0001b400 <+308>: cmp r5, #0 0x0001b404 <+312>: str r3, [r4, #32] 0x0001b408 <+316>: ; <UNDEFINED> instruction: 0xe7f001f9 0x0001b40c <+320>: str r3, [r4, #20] 0x0001b410 <+324>: movne r0, #1 0x0001b414 <+328>: beq 0x1b530 <_getopt_internal_r+612> 0x0001b418 <+332>: ldr r12, [sp, #12] 0x0001b41c <+336>: str r0, [r4, #28] => 0x0001b420 <+340>: ldrb r3, [r12] 0x0001b424 <+344>: cmp r3, #45 ; 0x2d 0x0001b428 <+348>: beq 0x1b848 <_getopt_internal_r+1404> 0x0001b42c <+352>: cmp r3, #43 ; 0x2b 0x0001b430 <+356>: beq 0x1b868 <_getopt_internal_r+1436> 0x0001b434 <+360>: cmp r0, #0 disassemble of _getopt_internal_r function ------------------------------------------ Just to see what instructions got breakpoint (gdb) disassemble _getopt_internal_r Dump of assembler code for function _getopt_internal_r: 0x0001b2cc <+0>: push {r4, r5, r6, r7, r8, r9, r10, r11, lr} 0x0001b2d0 <+4>: sub sp, sp, #68 ; 0x44 0x0001b2d4 <+8>: subs r10, r0, #0 0x0001b2d8 <+12>: ldr r4, [sp, #112] ; 0x70 0x0001b2dc <+16>: str r3, [sp, #28] 0x0001b2e0 <+20>: str r1, [sp, #24] 0x0001b2e4 <+24>: ldr r3, [r4, #4] 0x0001b2e8 <+28>: str r2, [sp, #12] 0x0001b2ec <+32>: str r3, [sp, #20] 0x0001b2f0 <+36>: ble 0x1b4f8 <_getopt_internal_r+556> 0x0001b2f4 <+40>: ldr r3, [r4] 0x0001b2f8 <+44>: mov r2, #0 0x0001b2fc <+48>: str r2, [r4, #12] 0x0001b300 <+52>: cmp r3, r2 0x0001b304 <+56>: beq 0x1b3f0 <_getopt_internal_r+292> 0x0001b308 <+60>: ldr r2, [r4, #16] 0x0001b30c <+64>: cmp r2, #0 0x0001b310 <+68>: beq 0x1b3f8 <_getopt_internal_r+300> 0x0001b314 <+72>: ldr r5, [sp, #12] 0x0001b318 <+76>: ldrb r3, [r5] 0x0001b31c <+80>: cmp r3, #45 ; 0x2d 0x0001b320 <+84>: cmpne r3, #43 ; 0x2b 0x0001b324 <+88>: ldrbeq r3, [r5, #1] 0x0001b328 <+92>: addeq r5, r5, #1 0x0001b32c <+96>: streq r5, [sp, #12] 0x0001b330 <+100>: cmp r3, #58 ; 0x3a 0x0001b334 <+104>: ldr r9, [r4, #20] 0x0001b338 <+108>: ldr r12, [sp, #20] 0x0001b33c <+112>: moveq r12, #0 0x0001b340 <+116>: cmp r9, #0 0x0001b344 <+120>: str r12, [sp, #20] 0x0001b348 <+124>: beq 0x1b458 <_getopt_internal_r+396> 0x0001b34c <+128>: ldrb r3, [r9] 0x0001b350 <+132>: cmp r3, #0 0x0001b354 <+136>: beq 0x1b458 <_getopt_internal_r+396> 0x0001b358 <+140>: str r9, [sp, #16] 0x0001b35c <+144>: ldr r12, [sp, #28] 0x0001b360 <+148>: cmp r12, #0 0x0001b364 <+152>: beq 0x1b880 <_getopt_internal_r+1460> 0x0001b368 <+156>: ldr r3, [r4] 0x0001b36c <+160>: ldr r5, [sp, #24] 0x0001b370 <+164>: str r3, [sp, #32] 0x0001b374 <+168>: ldr r3, [r5, r3, lsl #2] 0x0001b378 <+172>: ldrb r1, [r3, #1] 0x0001b37c <+176>: cmp r1, #45 ; 0x2d 0x0001b380 <+180>: beq 0x1b564 <_getopt_internal_r+664> 0x0001b384 <+184>: ldr r12, [sp, #108] ; 0x6c 0x0001b388 <+188>: cmp r12, #0 0x0001b38c <+192>: bne 0x1b548 <_getopt_internal_r+636> 0x0001b390 <+196>: ldr r9, [sp, #16] 0x0001b394 <+200>: add r6, r9, #1 0x0001b398 <+204>: str r6, [r4, #20] 0x0001b39c <+208>: ldrb r5, [r9] 0x0001b3a0 <+212>: ldr r0, [sp, #12] 0x0001b3a4 <+216>: mov r1, r5 0x0001b3a8 <+220>: bl 0x9db4 <strchr> 0x0001b3ac <+224>: ldrb r3, [r6] 0x0001b3b0 <+228>: cmp r3, #0 0x0001b3b4 <+232>: ldreq r3, [r4] 0x0001b3b8 <+236>: addeq r3, r3, #1 0x0001b3bc <+240>: streq r3, [r4] 0x0001b3c0 <+244>: sub r3, r5, #58 ; 0x3a 0x0001b3c4 <+248>: cmp r0, #0 0x0001b3c8 <+252>: cmpne r3, #1 0x0001b3cc <+256>: bhi 0x1b6f0 <_getopt_internal_r+1060> 0x0001b3d0 <+260>: ldr r12, [sp, #20] 0x0001b3d4 <+264>: cmp r12, #0 0x0001b3d8 <+268>: bne 0x1b6b0 <_getopt_internal_r+996> 0x0001b3dc <+272>: mov r1, #63 ; 0x3f 0x0001b3e0 <+276>: str r5, [r4, #8] 0x0001b3e4 <+280>: mov r0, r1 0x0001b3e8 <+284>: add sp, sp, #68 ; 0x44 0x0001b3ec <+288>: pop {r4, r5, r6, r7, r8, r9, r10, r11, pc} 0x0001b3f0 <+292>: mov r3, #1 0x0001b3f4 <+296>: str r3, [r4] 0x0001b3f8 <+300>: ldr r5, [sp, #116] ; 0x74 0x0001b3fc <+304>: str r3, [r4, #36] ; 0x24 0x0001b400 <+308>: cmp r5, #0 0x0001b404 <+312>: str r3, [r4, #32] 0x0001b408 <+316>: mov r3, #0 0x0001b40c <+320>: str r3, [r4, #20] 0x0001b410 <+324>: movne r0, #1 0x0001b414 <+328>: beq 0x1b530 <_getopt_internal_r+612> 0x0001b418 <+332>: ldr r12, [sp, #12] 0x0001b41c <+336>: str r0, [r4, #28] 0x0001b420 <+340>: ldrb r3, [r12] 0x0001b424 <+344>: cmp r3, #45 ; 0x2d 0x0001b428 <+348>: beq 0x1b848 <_getopt_internal_r+1404> 0x0001b42c <+352>: cmp r3, #43 ; 0x2b 0x0001b430 <+356>: beq 0x1b868 <_getopt_internal_r+1436> 0x0001b434 <+360>: cmp r0, #0 Victor Kamensky (1): ARM: uprobes need icache flush after xol write arch/arm/kernel/uprobes.c | 6 ++++++ include/linux/uprobes.h | 3 +++ kernel/events/uprobes.c | 20 +++++++++++++++----- 3 files changed, 24 insertions(+), 5 deletions(-) -- 1.8.1.4

10 years, 5 months

[PATCH] tick-sched: replace tick_nohz_active with tick_nohz_enabled in tick_nohz_switch_to_nohz()

by Viresh Kumar

Recently this patch came in: commit d689fe222a858c767cb8594faf280048e532b53f Author: Thomas Gleixner <tglx(a)linutronix.de> Date: Wed Nov 13 21:01:57 2013 +0100 NOHZ: Check for nohz active instead of nohz enabled and introduced a bug here. tick_nohz_active is initialized to zero and we are returning from this routine if it is zero. And hence we will never be able to cross this check. Actually this should not have been changed by above patch and should have stayed to tick_nohz_enabled. Fix it. Cc: <stable(a)vger.kernel.org> # 3.13.x Cc: <stable(a)vger.kernel.org> # 3.14.x Signed-off-by: Viresh Kumar <viresh.kumar(a)linaro.org> --- kernel/time/tick-sched.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 9f8af69..ea0cdc1 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -967,7 +967,7 @@ static void tick_nohz_switch_to_nohz(void) struct tick_sched *ts = &__get_cpu_var(tick_cpu_sched); ktime_t next; - if (!tick_nohz_active) + if (!tick_nohz_enabled) return; local_irq_disable(); -- 1.7.12.rc2.18.g61b472e

10 years, 5 months

[PATCH V3 00/17] ARM: exynos: cpuidle: Move the driver to drivers/cpuidle

by Daniel Lezcano

Changelog: V3: * Added patch : "ARM: exynos: cpuidle: Disable cpuidle for 5440" * Removed patch : "ARM: exynos: config: Enable cpuidle" * Removed default ARM_EXYNOS4210_CPUIDLE=y * Added comment about bug fix side effect 'for_each_possible_cpu' V2: * Added comment in changelog for calls order (5/17) * Call the powerdown only for cpu0 in the pm notifier * Set the pm notifier for all boards V1: initial post This patchset relies on the cpm_pm notifier to initiate the powerdown sequence operations from pm.c instead cpuidle.c. Thus the cpuidle driver is no longer dependent from arch specific code as everything is called from the pm.c file. The patchset applies on top of linux-samsung/for-next. Tested on exynos4: 4210 Tested on exynos5: 5250 (without AFTR) Daniel Lezcano (17): ARM: exynos: cpuidle: Prevent forward declaration ARM: exynos: cpuidle: use cpuidle_register ARM: exynos: cpuidle: change function name prefix ARM: exynos: cpuidle: encapsulate register access inside a function ARM: exynos: cpuidle: Move some code inside the idle_finisher ARM: exynos: cpuidle: Fix S5P_WAKEUP_STAT call ARM: exynos: cpuidle: Use the cpu_pm notifier ARM: exynos: cpuidle: Move scu_enable in the cpu_pm notifier ARM: exynos: cpuidle: Remove ifdef for scu_enable ARM: exynos: cpuidle: Move exynos_set_wakeupmask in the cpu_pm notifier ARM: exynos: cpuidle: Move the power sequence call in the cpu_pm notifier ARM: exynos: cpuidle: Move S5P_CHECK_AFTR in a header ARM: exynos: cpuidle: Move clock setup to pm.c ARM: exynos: cpuidle: Move the boot vector in pm.c ARM: exynos: cpuidle: Disable cpuidle for 5440 ARM: exynos: cpuidle: Pass the AFTR callback to the platform_data ARM: exynos: cpuidle: Move the driver to drivers/cpuidle directory arch/arm/mach-exynos/Makefile | 1 - arch/arm/mach-exynos/common.h | 1 + arch/arm/mach-exynos/cpuidle.c | 255 -------------------------------------- arch/arm/mach-exynos/exynos.c | 8 +- arch/arm/mach-exynos/pm.c | 177 +++++++++++++++++++++----- arch/arm/mach-exynos/pmu.c | 6 + arch/arm/mach-exynos/regs-pmu.h | 20 +++ drivers/cpuidle/Kconfig.arm | 6 + drivers/cpuidle/Makefile | 1 + drivers/cpuidle/cpuidle-exynos.c | 97 +++++++++++++++ 10 files changed, 285 insertions(+), 287 deletions(-) delete mode 100644 arch/arm/mach-exynos/cpuidle.c create mode 100644 drivers/cpuidle/cpuidle-exynos.c -- 1.7.9.5

10 years, 5 months

Where is debug_mutex_wake_waiter used? And it waits for what, I am getting oops

by Mj Embd

While bringing up kernel on armv7 I am getting this error, Can anyone please help me. What could be the issue. t= Internal error: Oops: 5 [#1] PREEMPT SMP ARM t= Modules linked in: t= CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.14.0-11033-g3dee3bc-dirty #34 t= task: cf858400 ti: cf85a000 task.ti: cf85a000 t= PC is at debug_mutex_wake_waiter+0x3c/0x174 t= LR is at __mutex_unlock_slowpath+0xc4/0x188 t= pc : [<c0050a74>] lr : [<c03810e4>] psr: 00000193 sp : cf85be00 ip : 00000000 fp : 00000000 t= r10: c0525c59 r9 : 413fc0f3 r8 : 00000001 t= r7 : 00000000 r6 : c05296ec r5 : c04ec014 r4 : 00000000 t= r3 : 00000000 r2 : 00000002 r1 : 00000000 r0 : c04ec000 t= Flags: nzcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel0 ip : 00000000 fp : 00000000 t= Control: 10c5387d Table: 4000406a DAC: 00000015 t= Process swapper/0 (pid: 1, stack limit = 0xcf85a240) Segment kernel0 ip : 00000000 fp : 00000000 t= Stack: (0xcf85be00 to 0xcf85c000) t= be00: c04ec000 c04f4460 c03852cc c03810e4 00000000 00000000 cf8a7b40 00000000 t= be20: 00000000 c010a9b8 00000000 00000000 0000000d c04e8ae0 cf8a79d8 c038ab40 t= be40: cf8a7b40 00000000 00000000 c010baf0 00000001 cfde7c9c cf8a79d8 c010c3cc t= be60: 0000000d 00000000 c038ab40 cfde7c9c 00000000 00000001 00000000 00000001 t= be80: c046d974 cfde7b68 cfde7c84 c046d974 cfde7b3c c010c580 00000000 c046d974 t= bea0: cfde7b3c c02d33d0 cfde7ba6 cf85bec4 cfde7b3c cfde7c84 00000000 c0525d80 t= bec0: c04bb500 c02d34b8 cfde7b3c c056133c c04de060 c04d480c 00000000 cf85a000 t= bee0: 00000000 c0008818 00000012 c00563b4 00000000 c04d47a8 00000000 00000000 t= bf00: c05296f2 00000012 cf88bb80 60000113 00000000 c04f9960 00000000 c04f9960 t= bf20: 00000000 c04f995c c04f995c c04de080 00000001 c04de060 c0525d80 c04bb500 t= bf40: c04e8adc 00000079 00000000 c037b508 c0432ad4 c04de080 00000001 c04de060 t= bf60: c0525d80 c04bb500 c04e8ae0 00000079 00000000 c04bbc6c 00000001 00000001 t= bf80: c04bb500 c003ccec 00000000 c03798b8 00000000 00000000 00000000 00000000 t= bfa0: 00000000 c03798c0 00000000 c000e438 00000000 00000000 00000000 00000000 t= bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 t= bfe0: 00000000 00000000 00000000 00000000 00000013 00000000 ffffffff ffffffff t= [<c0050a74>] (debug_mutex_wake_waiter) from [<c03810e4>] (__mutex_unlock_slowpath+0xc4/0x188) t= [<c03810e4>] (__mutex_unlock_slowpath) from [<c010a9b8>] (kernfs_add_one+0xc0/0x134)c4/0x188) t= [<c010a9b8>] (kernfs_add_one) from [<c010baf0>] (__kernfs_create_file+0x80/0x9c)134)c4/0x188) t= [<c010baf0>] (__kernfs_create_file) from [<c010c3cc>] (sysfs_add_file_mode_ns+0xa0/0x160) t= [<c010c3cc>] (sysfs_add_file_mode_ns) from [<c010c580>] (sysfs_add_file+0x18/0x20) t= [<c010c580>] (sysfs_add_file) from [<c02d33d0>] (__of_add_property_sysfs+0x64/0xb8) t= [<c02d33d0>] (__of_add_property_sysfs) from [<c02d34b8>] (__of_node_add+0x94/0xe0) t= [<c02d34b8>] (__of_node_add) from [<c04d480c>] (of_init+0x64/0xd4) t= [<c04d480c>] (of_init) from [<c0008818>] (do_one_initcall+0x34/0x158) t= [<c0008818>] (do_one_initcall) from [<c04bbc6c>] (kernel_init_freeable+0x108/0x1dc) t= [<c04bbc6c>] (kernel_init_freeable) from [<c03798c0>] (kernel_init+0x8/0xe4)/0x1dc) t= [<c03798c0>] (kernel_init) from [<c000e438>] (ret_from_fork+0x14/0x3c) t= Code: e5953014 e2855014 e1530005 0a00001d (e594300c) t= ---[ end trace 7c418b9a0bc03a79 ]---0001d (e594300c)

10 years, 5 months

next boot: 46 pass, 0 fail (next-20140409)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: next Git describe: next-20140409 Full Report =========== omap2plus_defconfig ------------------- legacy,3730xm 0 min 53.3 sec: PASS am335x-boneblack 0 min 25.8 sec: PASS omap3-beagle-xm 1 min 3.8 sec: PASS legacy,3530beagle 0 min 34.1 sec: PASS (Warnings: 1) omap4-panda 1 min 10.7 sec: PASS omap3-overo-tobi 0 min 23.3 sec: PASS (Warnings: 1) am335x-bone 0 min 27.4 sec: PASS omap3-overo-storm-tobi 0 min 22.1 sec: PASS omap5-uevm 1 min 8.3 sec: PASS (Warnings: 1) omap4-panda-es 1 min 11.6 sec: PASS legacy,3730storm 0 min 22.9 sec: PASS legacy,3530overo 0 min 21.1 sec: PASS (Warnings: 1) multi_lpae_defconfig -------------------- omap5-uevm 1 min 38.4 sec: PASS (Warnings: 1) sun7i-a20-cubieboard2 0 min 12.5 sec: PASS tegra_defconfig --------------- tegra30-beaver 0 min 17.3 sec: PASS imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual 0 min 18.9 sec: PASS imx6dl-wandboard,wand-solo 0 min 19.0 sec: PASS imx6q-wandboard 0 min 16.9 sec: PASS sunxi_defconfig --------------- sun7i-a20-cubieboard2 0 min 25.7 sec: PASS sun4i-a10-cubieboard 0 min 13.0 sec: PASS bcm_defconfig ------------- bcm28155-ap 0 min 23.4 sec: PASS mvebu_v7_defconfig ------------------ armada-xp-openblocks-ax3-4 0 min 22.2 sec: PASS armada-370-mirabox 0 min 20.3 sec: PASS exynos_defconfig ---------------- exynos5420-arndale-octa 0 min 32.1 sec: PASS exynos5250-arndale 0 min 29.6 sec: PASS multi_v7_defconfig ------------------ qcom-apq8074-dragonboard 0 min 16.0 sec: PASS tegra30-beaver 0 min 25.1 sec: PASS am335x-boneblack 0 min 24.1 sec: PASS omap3-beagle-xm 0 min 49.6 sec: PASS sun7i-a20-cubieboard2 0 min 12.4 sec: PASS armada-370-mirabox 0 min 22.4 sec: PASS omap4-panda 0 min 56.1 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.3 sec: PASS sun4i-a10-cubieboard 0 min 19.3 sec: PASS bcm28155-ap 0 min 27.6 sec: PASS omap3-overo-tobi 0 min 22.2 sec: PASS (Warnings: 1) imx6dl-wandboard,wand-solo 0 min 18.2 sec: PASS am335x-bone 0 min 26.8 sec: PASS omap3-overo-storm-tobi 0 min 24.0 sec: PASS omap5-uevm 1 min 40.7 sec: PASS (Warnings: 1) imx6q-wandboard 0 min 17.0 sec: PASS omap4-panda-es 0 min 55.1 sec: PASS imx6dl-wandboard,wand-dual 0 min 18.2 sec: PASS sama5_defconfig --------------- sama5d35ek 0 min 17.2 sec: PASS davinci_all_defconfig --------------------- legacy,dm365evm 0 min 17.5 sec: PASS da850-evm 0 min 15.7 sec: PASS

10 years, 5 months

mainline boot: 43 pass, 1 fail (v3.14-12041-g75ff24f)

by Kevin's boot bot

10 years, 5 months

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linaro-kernel April 2014