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#4081
shannon
Participant

the related dmesg log:

root@raspberrypi:~# dmesg
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Initializing cgroup subsys cpuacct
[ 0.000000] Linux version 3.18.11+ (dc4@dc4-XPS13-9333) (gcc version 4.8.3 20140303 (prerelease) (crosstool-NG linaro-1.13.1+bzr2650 - Linaro GCC 2014.03) ) #781 PREEMPT Tue Apr 21 18:02:18 BST 2015
[ 0.000000] CPU: ARMv6-compatible processor [410fb767] revision 7 (ARMv7), cr=00c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
[ 0.000000] Machine model: Raspberry Pi Model B Plus
[ 0.000000] cma: Reserved 8 MiB at 0x1b800000
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] On node 0 totalpages: 114688
[ 0.000000] free_area_init_node: node 0, pgdat c083d364, node_mem_map db474000
[ 0.000000] Normal zone: 896 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 114688 pages, LIFO batch:31
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 113792
[ 0.000000] Kernel command line: dma.dmachans=0x7f35 bcm2708_fb.fbwidth=656 bcm2708_fb.fbheight=416 bcm2708.boardrev=0x10 bcm2708.serial=0x20ffa566 smsc95xx.macaddr=B8:27:EB:FF:A5:66 bcm2708_fb.fbswap=1 bcm2708.disk_led_gpio=47 bcm2708.disk_led_active_low=0 sdhci-bcm2708.emmc_clock_freq=250000000 vc_mem.mem_base=0x1ec00000 vc_mem.mem_size=0x20000000 dwc_otg.lpm_enable=0 console=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline rootwait fbcon=map:10 fbcon=rotate:2 fbcon=font:ProFont6x11
[ 0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] Memory: 437272K/458752K available (5881K kernel code, 348K rwdata, 1868K rodata, 336K init, 733K bss, 21480K reserved)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xffc00000 - 0xffe00000 (2048 kB)
[ 0.000000] vmalloc : 0xdc800000 - 0xff000000 ( 552 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xdc000000 ( 448 MB)
[ 0.000000] modules : 0xbf000000 - 0xc0000000 ( 16 MB)
[ 0.000000] .text : 0xc0008000 - 0xc07997a0 (7750 kB)
[ 0.000000] .init : 0xc079a000 - 0xc07ee000 ( 336 kB)
[ 0.000000] .data : 0xc07ee000 - 0xc084513c ( 349 kB)
[ 0.000000] .bss : 0xc084513c - 0xc08fc8a8 ( 734 kB)
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] NR_IRQS:522
[ 0.000025] sched_clock: 32 bits at 1000kHz, resolution 1000ns, wraps every 2147483648000ns
[ 0.000073] Switching to timer-based delay loop, resolution 1000ns
[ 0.000354] Console: colour dummy device 80x30
[ 0.001455] console [tty1] enabled
[ 0.001500] Calibrating delay loop (skipped), value calculated using timer frequency.. 2.00 BogoMIPS (lpj=10000)
[ 0.001575] pid_max: default: 32768 minimum: 301
[ 0.001950] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.002016] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.003024] Initializing cgroup subsys memory
[ 0.003118] Initializing cgroup subsys devices
[ 0.003177] Initializing cgroup subsys freezer
[ 0.003231] Initializing cgroup subsys net_cls
[ 0.003282] Initializing cgroup subsys blkio
[ 0.003401] CPU: Testing write buffer coherency: ok
[ 0.003515] ftrace: allocating 19232 entries in 57 pages
[ 0.108305] Setting up static identity map for 0x553398 - 0x5533d0
[ 0.111141] devtmpfs: initialized
[ 0.128837] VFP support v0.3: implementor 41 architecture 1 part 20 variant b rev 5
[ 0.131867] pinctrl core: initialized pinctrl subsystem
[ 0.134807] NET: Registered protocol family 16
[ 0.140402] DMA: preallocated 4096 KiB pool for atomic coherent allocations
[ 0.141947] bcm2708.uart_clock = 3000000
[ 0.145085] No ATAGs?
[ 0.145148] hw-breakpoint: found 6 breakpoint and 1 watchpoint registers.
[ 0.145211] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.145277] mailbox: Broadcom VideoCore Mailbox driver
[ 0.145440] bcm2708_vcio: mailbox at f200b880
[ 0.145900] bcm_power: Broadcom power driver
[ 0.145955] bcm_power_open() -> 0
[ 0.145986] bcm_power_request(0, 8)
[ 0.646695] bcm_mailbox_read -> 00000080, 0
[ 0.646742] bcm_power_request -> 0
[ 0.646946] Serial: AMBA PL011 UART driver
[ 0.647179] dev:f1: ttyAMA0 at MMIO 0x20201000 (irq = 83, base_baud = 0) is a PL011 rev3
[ 1.038396] console [ttyAMA0] enabled
[ 1.101673] SCSI subsystem initialized
[ 1.105813] usbcore: registered new interface driver usbfs
[ 1.111608] usbcore: registered new interface driver hub
[ 1.117107] usbcore: registered new device driver usb
[ 1.124362] Switched to clocksource stc
[ 1.156603] FS-Cache: Loaded
[ 1.159905] CacheFiles: Loaded
[ 1.179266] NET: Registered protocol family 2
[ 1.185246] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[ 1.192426] TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
[ 1.199204] TCP: Hash tables configured (established 4096 bind 4096)
[ 1.205724] TCP: reno registered
[ 1.208994] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 1.214920] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 1.221582] NET: Registered protocol family 1
[ 1.226665] RPC: Registered named UNIX socket transport module.
[ 1.232634] RPC: Registered udp transport module.
[ 1.237468] RPC: Registered tcp transport module.
[ 1.242198] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 1.249897] hw perfevents: enabled with armv6_1176 PMU driver, 3 counters available
[ 1.258036] bcm2708_dma: DMA manager at f2007000
[ 1.262888] vc-mem: phys_addr:0x00000000 mem_base=0x1ec00000 mem_size:0x20000000(512 MiB)
[ 1.272646] futex hash table entries: 256 (order: -1, 3072 bytes)
[ 1.279134] audit: initializing netlink subsys (disabled)
[ 1.284721] audit: type=2000 audit(1.040:1): initialized
[ 1.305471] VFS: Disk quotas dquot_6.5.2
[ 1.309806] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 1.319307] FS-Cache: Netfs 'nfs' registered for caching
[ 1.326474] NFS: Registering the id_resolver key type
[ 1.331645] Key type id_resolver registered
[ 1.335988] Key type id_legacy registered
[ 1.341384] msgmni has been set to 870
[ 1.347795] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
[ 1.355812] io scheduler noop registered
[ 1.359796] io scheduler deadline registered (default)
[ 1.365545] io scheduler cfq registered
[ 1.371916] BCM2708FB: allocated DMA memory 5bc00000
[ 1.377223] BCM2708FB: allocated DMA channel 0 @ f2007000
[ 1.387729] Console: switching to colour frame buffer device 82x26
[ 1.399533] bcm2708-dmaengine bcm2708-dmaengine: Load BCM2835 DMA engine driver
[ 1.409232] uart-pl011 dev:f1: no DMA platform data
[ 1.416706] vc-cma: Videocore CMA driver
[ 1.422316] vc-cma: vc_cma_base = 0x00000000
[ 1.428734] vc-cma: vc_cma_size = 0x00000000 (0 MiB)
[ 1.435827] vc-cma: vc_cma_initial = 0x00000000 (0 MiB)
[ 1.455968] brd: module loaded
[ 1.467605] loop: module loaded
[ 1.472777] vchiq: vchiq_init_state: slot_zero = 0xdb800000, is_master = 0
[ 1.482208] Loading iSCSI transport class v2.0-870.
[ 1.490459] usbcore: registered new interface driver smsc95xx
[ 1.498120] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)
[ 1.705789] Core Release: 2.80a
[ 1.710511] Setting default values for core params
[ 1.716920] Finished setting default values for core params
[ 1.924368] Using Buffer DMA mode
[ 1.929218] Periodic Transfer Interrupt Enhancement - disabled
[ 1.936648] Multiprocessor Interrupt Enhancement - disabled
[ 1.943793] OTG VER PARAM: 0, OTG VER FLAG: 0
[ 1.949770] Dedicated Tx FIFOs mode
[ 1.955252] WARN::dwc_otg_hcd_init:1047: FIQ DMA bounce buffers: virt = 0xdbc14000 dma = 0x5bc14000 len=9024
[ 1.968286] FIQ FSM acceleration enabled for :
[ 1.968286] Non-periodic Split Transactions
[ 1.968286] Periodic Split Transactions
[ 1.968286] High-Speed Isochronous Endpoints
[ 1.991289] dwc_otg: Microframe scheduler enabled
[ 1.991399] WARN::hcd_init_fiq:412: FIQ on core 0 at 0xc03fad3c
[ 1.998989] WARN::hcd_init_fiq:413: FIQ ASM at 0xc03fb014 length 36
[ 2.006917] WARN::hcd_init_fiq:438: MPHI regs_base at 0xdc806000
[ 2.014613] dwc_otg bcm2708_usb: DWC OTG Controller
[ 2.021164] dwc_otg bcm2708_usb: new USB bus registered, assigned bus number 1
[ 2.030130] dwc_otg bcm2708_usb: irq 32, io mem 0x00000000
[ 2.037309] Init: Port Power? op_state=1
[ 2.042811] Init: Power Port (0)
[ 2.048036] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 2.056541] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 2.065426] usb usb1: Product: DWC OTG Controller
[ 2.071719] usb usb1: Manufacturer: Linux 3.18.11+ dwc_otg_hcd
[ 2.079169] usb usb1: SerialNumber: bcm2708_usb
[ 2.086353] hub 1-0:1.0: USB hub found
[ 2.091830] hub 1-0:1.0: 1 port detected
[ 2.098014] dwc_otg: FIQ enabled
[ 2.098038] dwc_otg: NAK holdoff enabled
[ 2.098051] dwc_otg: FIQ split-transaction FSM enabled
[ 2.098125] Module dwc_common_port init
[ 2.098707] usbcore: registered new interface driver usb-storage
[ 2.106945] mousedev: PS/2 mouse device common for all mice
[ 2.115053] bcm2835-cpufreq: min=700000 max=700000
[ 2.121784] sdhci: Secure Digital Host Controller Interface driver
[ 2.129681] sdhci: Copyright(c) Pierre Ossman
[ 2.136006] DMA channels allocated for the MMC driver
[ 2.174437] Load BCM2835 MMC driver
[ 2.181537] sdhci-pltfm: SDHCI platform and OF driver helper
[ 2.196437] ledtrig-cpu: registered to indicate activity on CPUs
[ 2.205637] hidraw: raw HID events driver (C) Jiri Kosina
[ 2.216279] usbcore: registered new interface driver usbhid
[ 2.225670] usbhid: USB HID core driver
[ 2.232778] TCP: cubic registered
[ 2.239995] Initializing XFRM netlink socket
[ 2.246069] NET: Registered protocol family 17
[ 2.252415] Key type dns_resolver registered
[ 2.260152] registered taskstats version 1
[ 2.266217] vc-sm: Videocore shared memory driver
[ 2.272467] [vc_sm_connected_init]: start
[ 2.279400] [vc_sm_connected_init]: end - returning 0
[ 2.288015] Waiting for root device /dev/mmcblk0p2...
[ 2.295149] Indeed it is in host mode hprt0 = 00021501
[ 2.309502] mmc0: host does not support reading read-only switch, assuming write-enable
[ 2.336533] mmc0: new high speed SDHC card at address b368
[ 2.354481] mmcblk0: mmc0:b368 SD08G 7.31 GiB
[ 2.365865] mmcblk0: p1 p2
[ 2.430604] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 2.442286] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[ 2.452686] devtmpfs: mounted
[ 2.458589] Freeing unused kernel memory: 336K (c079a000 - c07ee000)
[ 2.504605] usb 1-1: new high-speed USB device number 2 using dwc_otg
[ 2.513826] Indeed it is in host mode hprt0 = 00001101
[ 2.724980] usb 1-1: New USB device found, idVendor=0424, idProduct=9514
[ 2.733761] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 2.745593] hub 1-1:1.0: USB hub found
[ 2.751473] hub 1-1:1.0: 5 ports detected
[ 3.034765] usb 1-1.1: new high-speed USB device number 3 using dwc_otg
[ 3.145090] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00
[ 3.154012] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.172901] smsc95xx v1.0.4
[ 3.241378] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-bcm2708_usb-1.1, smsc95xx USB 2.0 Ethernet, b8:27:eb:ff:a5:66
[ 4.257490] udevd[159]: starting version 175
[ 5.954338] bcm2708_spi 20204000.spi: master is unqueued, this is deprecated
[ 6.014873] ads7846 spi0.1: touchscreen, irq 411
[ 6.108433] input: ADS7846 Touchscreen as /devices/soc/20204000.spi/spi_master/spi0/spi0.1/input/input0
[ 6.544987] fbtft: module is from the staging directory, the quality is unknown, you have been warned.
[ 6.579135] fb_ili9486: module is from the staging directory, the quality is unknown, you have been warned.
[ 6.609744] fbtft_of_value: regwidth = 16
[ 6.721628] fbtft_of_value: buswidth = 8
[ 6.908116] fbtft_of_value: debug = 0
[ 6.913863] fbtft_of_value: rotate = 90
[ 7.138854] fbtft_of_value: fps = 30
[ 7.462666] random: nonblocking pool is initialized
[ 8.516771] graphics fb1: fb_ili9486 frame buffer, 480x320, 300 KiB video memory, 4 KiB DMA buffer memory, fps=33, spi0.0 at 8 MHz
[ 8.544313] bcm2708_spi 20204000.spi: SPI Controller at 0x20204000 (irq 80)
[ 12.463902] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 13.485687] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 26.758024] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
[ 28.378949] smsc95xx 1-1.1:1.0 eth0: link up, 100Mbps, full-duplex, lpa 0x45E1
[ 34.269248] cfg80211: Calling CRDA to update world regulatory domain
[ 37.621821] Adding 102396k swap on /var/swap. Priority:-1 extents:2 across:2134012k SSFS

Blip, blop, bloop...