O2+ failure - what does blink pattern indicate?



  • I have an O2+ that has failed. It powers up but won't complete the boot cycle. It cannot be found on WiFi. I've torched my four expansion docks so, at the moment, can't check if it can be found via the USB-serial path.

    Take a gander at this brief video: https://drive.google.com/open?id=0B6fu6z6pMB95ZVV1WmlmenpBTmM

    The audio is likely recorded at far too low a level, so I'll explain here. The LED illuminates a brief moment after the PC end of the USB cable is attached (could have done the O2+ end instead so you'd have a crystal clear view of the timing). There is an on or blink pattern that lasts about nine seconds, as you can see in the video.

    Any ideas on what failure is indicated by the light pattern? Any ideas on troubleshooting further?

    thanks!
    Bill





  • @ccs-hello Thanks!



  • The topic was not helpful.

    I've fried all of my expansion docks. When replacements arrive I'll use one and uart receive to listen to tx0 on the broken device to see how far it boots.

    If that experiment yields sensible results I'll post to help out the next person with this issue.



  • @William-Scott said in O2+ failure - what does blink pattern indicate?:

    The topic was not helpful.

    I've fried all of my expansion docks. When replacements arrive I'll use one and uart receive to listen to tx0 on the broken device to see how far it boots.

    If that experiment yields sensible results I'll post to help out the next person with this issue.

    Hi, i have similar problem
    But my booting is runs about 23-24 seconds before stops
    I can get boot log from UART, powerup without UART connect, and after yellow led turns on - connect UART, so few first lines were corrupted.
    this is bootlog
    https://gist.github.com/YADeM/6537ccd51b827da95512aa44b5e2842c
    Also i try to check power - all is ok - i powered by AMS1117-3.3 with 200uF capacitor
    Maybe someone have problem resolve?



  • @Pavel-Helmer Ironically I'm setting up right now to monitor the boot process. I'll post my results as well. Will look at your results in a bit.

    thanks!
    Bill



  • @Pavel-Helmer Here's an example of a boot that completes. You'll find the EEPROM read at 16.89 seconds.

    [ 0.317090] console [ttyS0] enabled
    [ 0.324083] bootconsole [early0] disabled
    [ 0.324083] bootconsole [early0] disabled
    [ 0.332762] 10000d00.uart1: ttyS1 at MMIO 0x10000d00 (irq = 29, base_baud = 2500000) is a 16550A
    [ 0.342280] 10000e00.uart2: ttyS2 at MMIO 0x10000e00 (irq = 30, base_baud = 2500000) is a 16550A
    [ 0.352930] spi-mt7621 10000b00.spi: sys_freq: 193333333
    [ 0.363005] m25p80 spi32766.0: using chunked io (size=31)
    [ 0.368503] m25p80 spi32766.0: mx25l25635e (32768 Kbytes)
    [ 0.374071] 4 ofpart partitions found on MTD device spi32766.0
    [ 0.379994] Creating 4 MTD partitions on "spi32766.0":
    [ 0.385211] 0x000000000000-0x000000030000 : "u-boot"
    [ 0.392036] 0x000000030000-0x000000040000 : "u-boot-env"
    [ 0.399322] 0x000000040000-0x000000050000 : "factory"
    [ 0.406268] 0x000000050000-0x000002000000 : "firmware"
    [ 0.453999] 2 uimage-fw partitions found on MTD device firmware
    [ 0.460049] 0x000000050000-0x000000190404 : "kernel"
    [ 0.466770] 0x000000190404-0x000002000000 : "rootfs"
    [ 0.473698] mtd: device 5 (rootfs) set to be root filesystem
    [ 0.479575] 1 squashfs-split partitions found on MTD device rootfs
    [ 0.485852] 0x0000006f0000-0x000002000000 : "rootfs_data"
    [ 0.503288] rt3050-esw 10110000.esw: link changed 0x00
    [ 0.511022] mtk_soc_eth 10100000.ethernet eth0: mediatek frame engine at 0xb0100000, irq 5
    [ 0.519699] i2c /dev entries driver
    [ 0.523838] mt7621_wdt 10000120.watchdog: Initialized
    [ 0.530587] NET: Registered protocol family 10
    [ 0.539168] NET: Registered protocol family 17
    [ 0.543787] bridge: automatic filtering via arp/ip/ip6tables has been deprecated. Update your scripts to load br_netfilter if you need this.
    [ 0.556632] 8021q: 802.1Q VLAN Support v1.8
    [ 0.567927] VFS: Mounted root (squashfs filesystem) readonly on device 31:5.
    [ 0.576212] Freeing unused kernel memory: 192K (803d0000 - 80400000)
    [ 1.568519] init: Console is alive
    [ 1.572282] init: - watchdog -
    [ 3.999960] kmodloader: loading kernel modules from /etc/modules-boot.d/*
    [ 4.154168] usbcore: registered new interface driver usbfs
    [ 4.159907] usbcore: registered new interface driver hub
    [ 4.165394] usbcore: registered new device driver usb
    [ 4.176883] exFAT: Version 1.2.9
    [ 4.221410] SCSI subsystem initialized
    [ 4.232190] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
    [ 4.240630] ehci-platform: EHCI generic platform driver
    [ 4.256289] phy phy-10120000.usbphy.0: remote usb device wakeup disabled
    [ 4.263109] phy phy-10120000.usbphy.0: UTMI 16bit 30MHz
    [ 4.268437] ehci-platform 101c0000.ehci: EHCI Host Controller
    [ 4.274316] ehci-platform 101c0000.ehci: new USB bus registered, assigned bus number 1
    [ 4.282491] ehci-platform 101c0000.ehci: irq 26, io mem 0x101c0000
    [ 4.308675] ehci-platform 101c0000.ehci: USB 2.0 started, EHCI 1.00
    [ 4.316176] hub 1-0:1.0: USB hub found
    [ 4.320413] hub 1-0:1.0: 1 port detected
    [ 4.329471] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
    [ 4.337412] ohci-platform: OHCI generic platform driver
    [ 4.343070] ohci-platform 101c1000.ohci: Generic Platform OHCI controller
    [ 4.350044] ohci-platform 101c1000.ohci: new USB bus registered, assigned bus number 2
    [ 4.358159] ohci-platform 101c1000.ohci: irq 26, io mem 0x101c1000
    [ 4.423803] hub 2-0:1.0: USB hub found
    [ 4.428047] hub 2-0:1.0: 1 port detected
    [ 4.445375] MTK MSDC device init.
    [ 4.488808] mtk-sd: MediaTek MT6575 MSDC Driver
    [ 4.497011] sdhci: Secure Digital Host Controller Interface driver
    [ 4.503354] sdhci: Copyright(c) Pierre Ossman
    [ 4.511375] sdhci-pltfm: SDHCI platform and OF driver helper
    [ 4.522114] usbcore: registered new interface driver usb-storage
    [ 4.535169] kmodloader: done loading kernel modules from /etc/modules-boot.d/*
    [ 4.553036] init: - preinit -
    [ 4.877358] mmc0: new high speed SDHC card at address e624
    [ 4.979272] mmcblk0: mmc0:e624 SS08G 7.40 GiB
    [ 4.989432] mmcblk0: p1
    [ 5.069656] random: procd: uninitialized urandom read (4 bytes read, 9 bits of entropy available)
    [ 5.425560] rt3050-esw 10110000.esw: link changed 0x00
    Press the [f] key and hit [enter] to enter failsafe mode
    Press the [1], [2], [3] or [4] key and hit [enter] to select the debug level
    [ 8.157144] jffs2: notice: (402) jffs2_build_xattr_subsystem: complete building xattr subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.
    [ 8.182358] mount_root: loading kmods from internal overlay
    [ 8.239502] kmodloader: loading kernel modules from /tmp/overlay/upper/etc/modules-boot.d/*
    [ 8.252196] kmodloader: done loading kernel modules from /tmp/overlay/upper/etc/modules-boot.d/*
    [ 8.478445] block: attempting to load /tmp/jffs_cfg/upper/etc/config/fstab
    [ 8.491282] block: extroot: not configured
    [ 8.496443] mount_root: switching to jffs2 overlay
    [ 8.532346] urandom-seed: Seeding with /etc/urandom.seed
    [ 8.678714] procd: - early -
    [ 8.688074] procd: - watchdog -
    [ 9.302802] procd: - watchdog -
    [ 9.307713] procd: - ubus -
    [ 9.384906] random: ubusd: uninitialized urandom read (4 bytes read, 23 bits of entropy available)
    [ 9.400974] random: ubusd: uninitialized urandom read (4 bytes read, 23 bits of entropy available)
    [ 9.419239] random: ubusd: uninitialized urandom read (4 bytes read, 23 bits of entropy available)
    [ 9.429350] random: ubusd: uninitialized urandom read (4 bytes read, 23 bits of entropy available)
    [ 9.438926] random: ubusd: uninitialized urandom read (4 bytes read, 23 bits of entropy available)
    [ 9.448696] random: ubusd: uninitialized urandom read (4 bytes read, 23 bits of entropy available)
    [ 9.458028] random: ubusd: uninitialized urandom read (4 bytes read, 24 bits of entropy available)
    [ 9.472158] procd: - init -
    Please press Enter to activate this console.
    [ 10.812316] kmodloader: loading kernel modules from /etc/modules.d/*
    [ 10.930118] ntfs: driver 2.1.32 [Flags: R/O MODULE].
    [ 11.000999] ip6_tables: (C) 2000-2006 Netfilter Core Team
    [ 11.025313] Ralink/MTK WiFi EEPROM API Build for MT7620.
    [ 11.070153] WRTnode AP Driver version: 4.1.0.0
    [ 11.145871] Linux video capture interface: v2.00
    [ 11.192761] hidraw: raw HID events driver (C) Jiri Kosina
    [ 11.238609] Bluetooth: Core ver 2.21
    [ 11.242438] NET: Registered protocol family 31
    [ 11.246943] Bluetooth: HCI device and connection manager initialized
    [ 11.253426] Bluetooth: HCI socket layer initialized
    [ 11.258378] Bluetooth: L2CAP socket layer initialized
    [ 11.263567] Bluetooth: SCO socket layer initialized
    [ 11.271594] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
    [ 11.276994] Bluetooth: BNEP filters: protocol multicast
    [ 11.282379] Bluetooth: BNEP socket layer initialized
    [ 11.294214] usbcore: registered new interface driver btusb
    [ 11.303813] usbcore: registered new interface driver cdc_acm
    [ 11.309633] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
    [ 11.321869] Bluetooth: HCI UART driver ver 2.3
    [ 11.326393] Bluetooth: HCI UART protocol H4 registered
    [ 11.331667] Bluetooth: HCI UART protocol BCSP registered
    [ 11.341305] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
    [ 11.347334] Bluetooth: HIDP socket layer initialized
    [ 11.355548] ip_tables: (C) 2000-2006 Netfilter Core Team
    [ 11.376928] nf_conntrack version 0.5.0 (1964 buckets, 7856 max)
    [ 11.408044] Bluetooth: RFCOMM TTY layer initialized
    [ 11.413086] Bluetooth: RFCOMM socket layer initialized
    [ 11.418321] Bluetooth: RFCOMM ver 1.11
    [ 11.430497] spidev spi32766.1: buggy DT: spidev listed directly in DT
    [ 11.437044] ------------[ cut here ]------------
    [ 11.441821] WARNING: CPU: 0 PID: 526 at drivers/spi/spidev.c:720 init_module+0x533c/0x5dec spidev
    [ 11.451177] Modules linked in: spidev(+) snd_usbmidi_lib slhc rfcomm nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_nat nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack iptable_mangle iptable_filter ip_tables hidp hid_generic hci_uart crc_ccitt cdc_acm btusb btintel bnep bluetooth snd_soc_simple_card snd_soc_ralink_i2s snd_soc_wm8960 videobuf2_vmalloc videobuf2_memops videobuf2_core hid v4l2_common videodev evdev snd_soc_core ralink_gdma virt_dma mt76x8 ralink_eeprom_api ledtrig_oneshot ledtrig_morse ledtrig_heartbeat ledtrig_gpio ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 nf_log_common ip6table_mangle ip6table_filter ip6_tables x_tables msdos snd_pcm_dmaengine snd_compress snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_rawmidi snd_seq_device snd_hwdep snd input_core soundcore vfat fat ntfs configfs autofs4 nls_utf8 nls_iso8859_1 nls_cp437 regmap_i2c dma_shared_buffer ecb cmac mmc_block usb_storage sdhci_pltfm sdhci mtk_sd mmc_core leds_gpio ohci_platform ohci_hcd ledtrig_transient ehci_platform ehci_hcd sd_mod scsi_mod gpio_button_hotplug ext4 jbd2 mbcache exfat usbcore nls_base usb_common crc16 aead crypto_null cryptomgr crc32c_generic crypto_hash
    [ 11.558074] CPU: 0 PID: 526 Comm: kmodloader Not tainted 4.4.46 #0
    [ 11.564350] Stack : 8036b8a8 00000000 00000001 803c0000 87daafcc 803b4d83 8034ce68 0000020e
     80403438 0000000c 0000001a 024000c0 80066220 8004ae40 80352364 803b0000
     00000003 0000000c 80350768 876bdb4c 80066220 80048dac 00000000 00000000
     00000001 00000000 00000000 00000000 00000000 00000000 00000000 00000000
     00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
     ...
    [ 11.600512] Call Trace:
    [ 11.603045] [<80066220>] module_sect_show+0x0/0x18
    [ 11.607911] [<8004ae40>] vprintk_default+0x24/0x30
    [ 11.612802] [<80066220>] module_sect_show+0x0/0x18
    [ 11.617664] [<80048dac>] printk+0x2c/0x38
    [ 11.621762] [<80025430>] warn_slowpath_common+0xa0/0xd0
    [ 11.627076] [<8014c338>] dump_stack+0x14/0x28
    [ 11.631511] [<80014874>] show_stack+0x50/0x84
    [ 11.635932] [<80025430>] warn_slowpath_common+0xa0/0xd0
    [ 11.641252] [<86dc633c>] init_module+0x533c/0x5dec [spidev]
    [ 11.646923] [<800254e8>] warn_slowpath_null+0x18/0x24
    [ 11.652076] [<801f9818>] of_match_node+0x20/0x44
    [ 11.656787] [<86dc633c>] init_module+0x533c/0x5dec [spidev]
    [ 11.662472] [<801bef78>] devm_kfree+0x20/0x44
    [ 11.666907] [<801e01bc>] spi_drv_probe+0x3c/0x84
    [ 11.671618] [<801bbaa8>] driver_probe_device+0x120/0x288
    [ 11.677025] [<8008a134>] kstrdup+0x44/0x8c
    [ 11.681211] [<801e00bc>] spi_match_device+0x38/0xa8
    [ 11.686180] [<801bbc8c>] __driver_attach+0x7c/0xb4
    [ 11.691053] [<801b9eb0>] next_device+0x10/0x30
    [ 11.695570] [<801bbc10>] __driver_attach+0x0/0xb4
    [ 11.700356] [<801b9f6c>] bus_for_each_dev+0x9c/0xac
    [ 11.705334] [<802f087c>] klist_add_tail+0x24/0x50
    [ 11.710151] [<801b9d40>] bus_get+0x2c/0x50
    [ 11.714328] [<801bb1a0>] bus_add_driver+0xec/0x20c
    [ 11.719210] [<800ad190>] exact_match+0x0/0x8
    [ 11.723545] [<800ad698>] exact_lock+0x0/0x24
    [ 11.727894] [<801bc3a4>] driver_register+0xa8/0xf8
    [ 11.732775] [<86dc1000>] init_module+0x0/0xdc [spidev]
    [ 11.738020] [<86dc1098>] init_module+0x98/0xdc [spidev]
    [ 11.743342] [<80157f08>] kasprintf+0x1c/0x28
    [ 11.747690] [<80045798>] __wake_up+0x24/0x48
    [ 11.752041] [<86dc1000>] init_module+0x0/0xdc [spidev]
    [ 11.757278] [<8000d890>] do_one_initcall+0x1e8/0x214
    [ 11.762344] [<86dc1000>] init_module+0x0/0xdc [spidev]
    [ 11.767570] [<800a5ec8>] kmem_cache_alloc+0x40/0xfc
    [ 11.772562] [<80033f40>] call_usermodehelper_setup+0x38/0xa8
    [ 11.778326] [<80066220>] module_sect_show+0x0/0x18
    [ 11.783226] [<80067440>] do_init_module+0x74/0x1cc
    [ 11.788095] [<8009dc7c>] __vunmap+0xf0/0x114
    [ 11.792478] [<80068cd4>] load_module+0x16c0/0x1b68
    [ 11.797343] [<8006680c>] unknown_module_param_cb+0x0/0xac
    [ 11.802841] [<8009e170>] __vmalloc_node+0x34/0x40
    [ 11.807639] [<80069210>] SyS_init_module+0x94/0x180
    [ 11.812608] [<800692ac>] SyS_init_module+0x130/0x180
    [ 11.817675] [<8000682c>] syscall_common+0x30/0x54
    [ 11.822469] [<80008c58>] __bzero+0xbc/0x164
    [ 11.826710]
    [ 11.828221] ---[ end trace 5e6e2b0647769f9e ]---
    [ 11.840606] usbcore: registered new interface driver ums-alauda
    [ 11.849761] usbcore: registered new interface driver ums-cypress
    [ 11.859012] usbcore: registered new interface driver ums-datafab
    [ 11.867889] usbcore: registered new interface driver ums-freecom
    [ 11.877054] usbcore: registered new interface driver ums-isd200
    [ 11.897325] usbcore: registered new interface driver ums-jumpshot
    [ 11.906391] usbcore: registered new interface driver ums-karma
    [ 11.916159] usbcore: registered new interface driver ums-sddr09
    [ 11.925249] usbcore: registered new interface driver ums-sddr55
    [ 11.934759] usbcore: registered new interface driver ums-usbat
    [ 11.946906] usbcore: registered new interface driver usbhid
    [ 11.952642] usbhid: USB HID core driver
    [ 11.960329] usbcore: registered new interface driver usblp
    [ 11.974343] usbcore: registered new interface driver usbserial
    [ 11.980431] usbcore: registered new interface driver usbserial_generic
    [ 11.987144] usbserial: USB Serial support registered for generic
    [ 12.005981] Driver for 1-wire Dallas network protocol.
    [ 12.032491] xt_time: kernel timezone is -0000
    [ 12.039233] usbcore: registered new interface driver ch341
    [ 12.044910] usbserial: USB Serial support registered for ch341-uart
    [ 12.054447] usbcore: registered new interface driver cp210x
    [ 12.060301] usbserial: USB Serial support registered for cp210x
    [ 12.069892] usbcore: registered new interface driver ftdi_sio
    [ 12.075834] usbserial: USB Serial support registered for FTDI USB Serial Device
    [ 12.098101] usbcore: registered new interface driver pl2303
    [ 12.103983] usbserial: USB Serial support registered for pl2303
    [ 12.115840] PPP generic driver version 2.4.2
    [ 12.123530] NET: Registered protocol family 24
    [ 12.141552] usbcore: registered new interface driver snd-usb-audio
    [ 12.163473] usbcore: registered new interface driver uvcvideo
    [ 12.169368] USB Video Class driver (1.1.1)
    [ 12.182417] usbcore: registered new interface driver option
    [ 12.188204] usbserial: USB Serial support registered for GSM modem (1-port)
    [ 12.200876] kmodloader: done loading kernel modules from /etc/modules.d/*
    [ 12.587359] random: jshn: uninitialized urandom read (4 bytes read, 41 bits of entropy available)
    [ 12.620635] random: ubusd: uninitialized urandom read (4 bytes read, 41 bits of entropy available)
    [ 16.892607] EEPROM:Read from [factory] offset 0x0,length 0x400.
    [ 19.879096] ch1 bssid=2c:56:dc:de:d4:00
    [ 19.883095] ch4 bssid=2c:30:33:d4:e7:8f
    [ 19.887074] ch6 bssid=40:a3:6b:c0:fd:bf
    [ 19.891095] ch6 bssid=7c:bf:b1:2c:35:90
    [ 19.895075] ch6 bssid=78:45:61:ac:ae:46
    [ 19.899073] ch6 bssid=80:ea:96:f1:fc:56
    [ 19.903051] ch6 bssid=60:a4:4c:f0:3b:80
    [ 19.907031] ch6 bssid=60:a4:4c:f0:3b:81
    [ 19.911032] ch9 bssid=1c:b7:2c:86:db:d0
    [ 19.915014] ch11 bssid=00:1c:df:e2:19:13
    [ 19.919101] ch11 bssid=de:fe:07:64:6c:66
    [ 19.923168] ch11 bssid=02:15:99:ed:55:36
    [ 19.927235] ch11 bssid=54:e4:3a:ea:0e:e6
    [ 19.931320] ch11 bssid=98:de:d0:5f:7f:56
    [ 19.935443] =====================================================
    [ 19.941646] Channel 1 : Dirty = 94, False CCA = 0, Busy Time = 40026, Skip Channel = FALSE
    [ 19.950042] Channel 2 : Dirty = 180, False CCA = 0, Busy Time = 23940, Skip Channel = FALSE
    [ 19.958510] Channel 3 : Dirty = 204, False CCA = 0, Busy Time = 32173, Skip Channel = FALSE
    [ 19.967019] Channel 4 : Dirty = 272, False CCA = 0, Busy Time = 42967, Skip Channel = FALSE
    [ 19.975503] Channel 5 : Dirty = 264, False CCA = 0, Busy Time = 35953, Skip Channel = FALSE
    [ 19.983980] Channel 6 : Dirty = 492, False CCA = 0, Busy Time = 26199, Skip Channel = FALSE
    [ 19.992464] Channel 7 : Dirty = 344, False CCA = 0, Busy Time = 11703, Skip Channel = FALSE
    [ 20.000947] Channel 8 : Dirty = 340, False CCA = 0, Busy Time = 30460, Skip Channel = FALSE
    [ 20.009431] Channel 9 : Dirty = 354, False CCA = 0, Busy Time = 1817, Skip Channel = FALSE
    [ 20.017810] Channel 10 : Dirty = 312, False CCA = 0, Busy Time = 11280, Skip Channel = FALSE
    [ 20.026381] Channel 11 : Dirty = 378, False CCA = 0, Busy Time = 13044, Skip Channel = FALSE
    [ 20.034947] =====================================================
    [ 20.041132] Rule 1 CCA value : Min Dirtiness (Include extension channel) ==> Select Channel 1
    [ 20.049872] Min Dirty = 94
    [ 20.052613] ExChannel = 0 , 0
    [ 20.055617] BW = 20
    [ 20.274192] device eth0.1 entered promiscuous mode
    [ 20.279185] device eth0 entered promiscuous mode
    [ 20.298867] br-wlan: port 1(eth0.1) entered forwarding state
    [ 20.304653] br-wlan: port 1(eth0.1) entered forwarding state
    [ 22.298658] br-wlan: port 1(eth0.1) entered forwarding state
    [ 24.570729] device ra0 entered promiscuous mode
    [ 24.575486] br-wlan: port 2(ra0) entered forwarding state
    [ 24.581048] br-wlan: port 2(ra0) entered forwarding state
    [ 26.578643] br-wlan: port 2(ra0) entered forwarding state
    [ 26.976477] br-wlan: port 2(ra0) entered disabled state
    [ 27.439553] EEPROM:Read from [factory] offset 0x0,length 0x400.
    [ 29.938663] ch1 bssid=2c:56:dc:de:d4:00
    [ 29.942661] ch6 bssid=78:45:61:ac:ae:40
    [ 29.946639] ch6 bssid=7c:bf:b1:2c:35:90
    [ 29.950648] ch6 bssid=80:ea:96:f1:fc:56
    [ 29.954630] ch6 bssid=60:a4:4c:f0:3b:81
    [ 29.958666] ch6 bssid=40:a3:6b:c0:fd:bf
    [ 29.962646] ch6 bssid=60:a4:4c:f0:3b:80
    [ 29.966626] ch11 bssid=54:e4:3a:ea:0e:e6
    [ 29.970711] ch11 bssid=88:d7:f6:65:26:80
    [ 29.974777] ch11 bssid=00:1c:df:e2:19:13
    [ 29.978862] ch11 bssid=de:fe:07:64:6c:66
    [ 29.982927] ch11 bssid=98:de:d0:5f:7f:56
    [ 29.986988] =====================================================
    [ 29.993187] Channel 1 : Dirty = 70, False CCA = 0, Busy Time = 42821, Skip Channel = FALSE
    [ 30.001586] Channel 2 : Dirty = 152, False CCA = 0, Busy Time = 30001, Skip Channel = FALSE
    [ 30.010068] Channel 3 : Dirty = 172, False CCA = 0, Busy Time = 20401, Skip Channel = FALSE
    [ 30.018534] Channel 4 : Dirty = 192, False CCA = 0, Busy Time = 24961, Skip Channel = FALSE
    [ 30.027017] Channel 5 : Dirty = 212, False CCA = 0, Busy Time = 13809, Skip Channel = FALSE
    [ 30.035501] Channel 6 : Dirty = 440, False CCA = 0, Busy Time = 5423, Skip Channel = FALSE
    [ 30.043891] Channel 7 : Dirty = 292, False CCA = 0, Busy Time = 11824, Skip Channel = FALSE
    [ 30.052374] Channel 8 : Dirty = 288, False CCA = 0, Busy Time = 13836, Skip Channel = FALSE
    [ 30.060858] Channel 9 : Dirty = 284, False CCA = 0, Busy Time = 27746, Skip Channel = FALSE
    [ 30.069342] Channel 10 : Dirty = 280, False CCA = 0, Busy Time = 10799, Skip Channel = FALSE
    [ 30.077896] Channel 11 : Dirty = 350, False CCA = 0, Busy Time = 11802, Skip Channel = FALSE
    [ 30.086462] =====================================================
    [ 30.092647] Rule 1 CCA value : Min Dirtiness (Include extension channel) ==> Select Channel 1
    [ 30.101386] Min Dirty = 70
    [ 30.104129] ExChannel = 0 , 0
    [ 30.107133] BW = 20
    [ 30.138719] br-wlan: port 2(ra0) entered forwarding state
    [ 30.144259] br-wlan: port 2(ra0) entered forwarding state
    [ 32.138659] br-wlan: port 2(ra0) entered forwarding state
    [ 48.721799] random: nonblocking pool is initialized

    Now that I'm set up I'll take a shot at my problem.

    --Bill



  • That was easy - kernel panic. Will try to re-flash.

    [ 8.313164] jffs2: notice: (396) jffs2_build_xattr_subsystem: complete building xattr subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.
    [ 8.334401] mount_root: switching to jffs2 overlay
    [ 8.373987] urandom-seed: Seeding with /etc/urandom.seed
    Error relocating /lib/libubus.so: uloop_cancelling: symbol not found
    [ 8.515722] watchdog watchdog0: watchdog did not stop!
    [ 8.521202] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00007f00
    [ 8.521202]
    [ 8.532030] Rebooting in 1 seconds..

    --Bill



  • @William-Scott said in O2+ failure - what does blink pattern indicate?:

    [ 8.496443] mount_root: switching to jffs2 overlay
    [ 8.532346] urandom-seed: Seeding with /etc/urandom.seed
    [ 8.678714] procd: - early -
    [ 8.688074] procd: - watchdog -
    [ 9.302802] procd: - watchdog -
    [ 9.307713] procd: - ubus -

    If it was successful we'd see something like:

    [ 8.496443] mount_root: switching to jffs2 overlay
    [ 8.532346] urandom-seed: Seeding with /etc/urandom.seed
    [ 8.678714] procd: - early -
    [ 8.688074] procd: - watchdog -
    [ 9.302802] procd: - watchdog -
    [ 9.307713] procd: - ubus -
    ...and more...

    Anyone pick up any bits of wisdom from the two lines prior to the kernel panic?

    --Bill



  • The spidev thing is not a kernel panic but an entirely routine kernel warning that is the loud evidence of an argument between upstream developers, but looks like that was not your question was about.

    Was this a warm reboot without a power cycle?



  • @Chris-Stratton This was a cold boot.

    Apparently the device was in the process of failing and has now failed hard. There is no output at all on power up. The device won't factory reset via the breadboard dock reset button.

    On to the next problem....

    thanks!
    Bill



  • @Chris-Stratton I take that back! Or at least some of it. Was sitting here wondering which of the 30 problems I'm going to tackle next. I wondered, since that failed device has cooled.....

    I grabbed the device out of it's new home, one of the fried expansion docks, and put it back in the breadboard dock. Applied power, and voila! The LED came up and went into the same failure pattern as before. Is there a possible heat issue?

    Immediately I tried to replicate this magical feat. Now the device is back to providing no external clues - looks dead.

    --Bill


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