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I remember visiting their web page from my phone. I remember visiting the restaurant last Friday. I don’t remember signing up for a newsletter, or actively giving them my email address.

Newsletter Email

I paid with my credit card by handing it to the server, who returned with the slips for me to sign.

I’m guessing that this is related to a merchant feature of using Square (or whatever they are named now) as a credit card processing platform, along with the fact that often with Square I’ll have email receipts instead of paper receipts.

Westcott Bay Shellfish Co.

Raspberry Pi ZeroW Camera Focus with libcamera-vid

Several years ago I was trying to play with a camera on a Raspberry Pi Zero and was using FFMPEG to stream video to my PC. Now that I’m trying out the Bullseye release of Raspian, I’m attempting to use the camera tools that are installed by default.

I’ve got an Arducam with 160° lens connected to my Pi Zero.

pi@WimPiZeroCamera:~ $ libcamera-vid --list-cameras
[0:01:26.600607679] [701]  INFO Camera camera_manager.cpp:293 libcamera v0.0.0+3544-22656360
[0:01:26.690670361] [702] ERROR CameraSensor camera_sensor.cpp:591 'ov5647 10-0036': Camera sensor does not support test pattern modes.
[0:01:26.842438396] [702]  INFO RPI raspberrypi.cpp:1356 Registered camera /base/soc/i2c0mux/i2c@1/ov5647@36 to Unicam device /dev/media3 and ISP device /dev/media0
Available cameras
-----------------
0 : ov5647 [2592x1944] (/base/soc/i2c0mux/i2c@1/ov5647@36)
    Modes: 'SGBRG10_CSI2P' : 640x480 1296x972 1920x1080 2592x1944 

First I ran the previous command to see that the camera is recognized, then I run the following command to set up the port on the Pi. The program produces no output in the terminal until I connect from my PC.

pi@WimPiZeroCamera:~ $ libcamera-vid --timeout 0 --nopreview --listen --output tcp://0.0.0.0:5000

On the PC, I run VLC

Open Network Stream
tcp/h264://192.168.0.63:5000
View from the camera

looking back at the console output, you can see that it’s defaulting to 640×480 resolution.

pi@WimPiZeroCamera:~ $ libcamera-vid --timeout 0 --nopreview --listen --output tcp://0.0.0.0:5000
[2:02:18.390718603] [16931]  INFO Camera camera_manager.cpp:293 libcamera v0.0.0+3544-22656360
[2:02:18.502791615] [17031] ERROR CameraSensor camera_sensor.cpp:591 'ov5647 10-0036': Camera sensor does not support test pattern modes.
[2:02:18.636067629] [17031]  INFO RPI raspberrypi.cpp:1356 Registered camera /base/soc/i2c0mux/i2c@1/ov5647@36 to Unicam device /dev/media3 and ISP device /dev/media0
[2:02:18.641028629] [16931]  INFO Camera camera.cpp:1029 configuring streams: (0) 640x480-YUV420
[2:02:18.644508629] [17031]  INFO RPI raspberrypi.cpp:760 Sensor: /base/soc/i2c0mux/i2c@1/ov5647@36 - Selected sensor format: 640x480-SGBRG10_1X10 - Selected unicam format: 640x480-pGAA

When I stop the video on the PC, libcamera-vid exits on the Pi.

I can specify the width and height of the output at the Pi, but it seems to be having problems delivering data.

libcamera-vid --timeout 0 --nopreview --width 1920 --height 1080 --inline --listen -o tcp://0.0.0.0:5000
the video starts, but rapidly freezes.
pi@WimPiZeroCamera:~ $ libcamera-vid --timeout 0 --nopreview --width 1920 --height 1080 --inline --listen -o tcp://0.0.0.0:5000 
[0:01:23.973536453] [670]  INFO Camera camera_manager.cpp:293 libcamera v0.0.0+3544-22656360
[0:01:24.087323064] [704] ERROR CameraSensor camera_sensor.cpp:591 'ov5647 10-0036': Camera sensor does not support test pattern modes.
[0:01:24.241746679] [704]  INFO RPI raspberrypi.cpp:1356 Registered camera /base/soc/i2c0mux/i2c@1/ov5647@36 to Unicam device /dev/media3 and ISP device /dev/media0
[0:01:24.247247304] [670]  INFO Camera camera.cpp:1029 configuring streams: (0) 1920x1080-YUV420
[0:01:24.250886379] [704]  INFO RPI raspberrypi.cpp:760 Sensor: /base/soc/i2c0mux/i2c@1/ov5647@36 - Selected sensor format: 1920x1080-SGBRG10_1X10 - Selected unicam format: 1920x1080-pGAA

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.204113] Internal error: Oops: 80000005 [#1] ARM

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.205952] Process libcamera-vid (pid: 704, stack limit = 0x5546931d)

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.205993] Stack: (0xc2d2de10 to 0xc2d2e000)

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.206027] de00:                                     c2d2de3b c1b70ea0 c2d2de5c 00000000

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.206068] de20: 00000000 00000000 00000000 00000000 c3b2ed20 b58bc074 00c9c038 00000003

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.206104] de40: 00000002 00278d00 00004002 00000001 00000000 00000056 00000000 000180b5

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.206140] de60: 00000000 00000000 00000000 00000000 00000000 00000000 00000004 0000001d

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.206178] de80: 00278d00 00000000 00000000 c2d2de98 c0046c80 c000b100 c13b6014 c1b70ea0

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.206216] dea0: c0c2b2c0 c1888ea0 00000000 c41df8c0 c2d2dedc c2d2dec0 c0013798 0a121acf

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.206253] dec0: 00000000 bf1d1d50 c3b2ed21 00000000 c3b2ed20 c0c1f028 b58bc074 0000000e

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.206292] dee0: c2d2defc c2d2def0 bf1d1d6c bf1d17b4 c2d2df14 c2d2df00 bf1c9148 bf1d1d5c

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.206330] df00: c044560f c3b2ed21 c2d2dfa4 c2d2df18 c021fda0 bf1c9108 00000000 c0c1f028

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.206369] df20: c0008ff0 00c5387d c2d2df6c c2d2df38 c0014720 c001377c 00000000 00000000

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.206406] df40: 00000000 00000000 c0c9c038 60000010 c0008ff0 00c5387d 00000000 c0009104

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.206444] df60: c2d2df94 c2d2df70 c00f8f20 c00fa1fc b6968a5c 0a121acf ffffffff b58bc074

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.206481] df80: b4f11558 b4f0ba30 00000036 c00083e4 c2d2c000 00000000 00000000 c2d2dfa8

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.206518] dfa0: c0008260 c021fc98 b58bc074 b4f11558 0000000e c044560f b58bc074 b6dfb788

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.206555] dfc0: b58bc074 b4f11558 b4f0ba30 00000036 0bde9f08 00000014 b6ad9124 01167c88

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.206595] dfe0: b6aabe94 b58bc04c b6a354a0 b6bcb1ac 60000010 0000000e 00000000 00000000

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.206625] Backtrace: 

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.206653] [<bf1d17a8>] (video_usercopy [videodev]) from [<bf1d1d6c>] (video_ioctl2+0x1c/0x24 [videodev])

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.207763]  r10:0000000e r9:b58bc074 r8:c0c1f028 r7:c3b2ed20 r6:00000000 r5:c3b2ed21

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.207800]  r4:bf1d1d50

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.207820] [<bf1d1d50>] (video_ioctl2 [videodev]) from [<bf1c9148>] (v4l2_ioctl+0x4c/0x64 [videodev])

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.208594] [<bf1c90fc>] (v4l2_ioctl [videodev]) from [<c021fda0>] (sys_ioctl+0x114/0x9b0)

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.209024]  r5:c3b2ed21 r4:c044560f

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.209047] [<c021fc8c>] (sys_ioctl) from [<c0008260>] (ret_fast_syscall+0x0/0x1c)

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.209094] Exception stack(0xc2d2dfa8 to 0xc2d2dff0)

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.209128] dfa0:                   b58bc074 b4f11558 0000000e c044560f b58bc074 b6dfb788

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.209167] dfc0: b58bc074 b4f11558 b4f0ba30 00000036 0bde9f08 00000014 b6ad9124 01167c88

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.209202] dfe0: b6aabe94 b58bc04c b6a354a0 b6bcb1ac

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.209233]  r10:00000000 r9:c2d2c000 r8:c00083e4 r7:00000036 r6:b4f0ba30 r5:b4f11558

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.209261]  r4:b58bc074

Message from syslogd@WimPiZeroCamera at Jun  3 21:06:16 ...
 kernel:[   86.209294] Code: bad PC value

I’m including the output of dmesg here in case anyone has a solution to my problem. Most likely I’m going to switch back to the Buster release of raspian and see if everything works properly there.

pi@WimPiZeroCamera:~ $ dmesg 
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 5.15.32+ (dom@buildbot) (arm-linux-gnueabihf-gcc-8 (Ubuntu/Linaro 8.4.0-3ubuntu1) 8.4.0, GNU ld (GNU Binutils for Ubuntu) 2.34) #1538 Thu Mar 31 19:37:58 BST 2022
[    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] OF: fdt: Machine model: Raspberry Pi Zero W Rev 1.1
[    0.000000] random: fast init done
[    0.000000] Memory policy: Data cache writeback
[    0.000000] Reserved memory: created CMA memory pool at 0x0bc00000, size 256 MiB
[    0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x0000000000000000-0x000000001bffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000000000-0x000000001bffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x000000001bffffff]
[    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[    0.000000] pcpu-alloc: [0] 0 
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 113680
[    0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 video=Composite-1:720x480@60i smsc95xx.macaddr=B8:27:EB:B0:8B:F5 vc_mem.mem_base=0x1ec00000 vc_mem.mem_size=0x20000000  console=ttyS0,115200 console=tty1 root=PARTUUID=fb77dacb-02 rootfstype=ext4 fsck.repair=yes rootwait
[    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
[    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] Memory: 177232K/458752K available (8994K kernel code, 1338K rwdata, 2932K rodata, 436K init, 546K bss, 19376K reserved, 262144K cma-reserved)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] ftrace: allocating 31774 entries in 94 pages
[    0.000000] ftrace: allocated 94 pages with 5 groups
[    0.000000] trace event string verifier disabled
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] random: get_random_bytes called from start_kernel+0x474/0x6d8 with crng_init=1
[    0.000006] sched_clock: 32 bits at 1000kHz, resolution 1000ns, wraps every 2147483647500ns
[    0.000103] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275 ns
[    0.000218] bcm2835: system timer (irq = 27)
[    0.001053] Console: colour dummy device 80x30
[    0.001743] printk: console [tty1] enabled
[    0.001850] Calibrating delay loop... 697.95 BogoMIPS (lpj=3489792)
[    0.060393] pid_max: default: 32768 minimum: 301
[    0.060674] LSM: Security Framework initializing
[    0.060954] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.061048] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.063506] cgroup: Disabling memory control group subsystem
[    0.064019] CPU: Testing write buffer coherency: ok
[    0.066192] Setting up static identity map for 0x8220 - 0x8258
[    0.067811] devtmpfs: initialized
[    0.083783] VFP support v0.3: implementor 41 architecture 1 part 20 variant b rev 5
[    0.084268] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.084378] futex hash table entries: 256 (order: -1, 3072 bytes, linear)
[    0.127092] pinctrl core: initialized pinctrl subsystem
[    0.129535] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[    0.134406] DMA: preallocated 1024 KiB pool for atomic coherent allocations
[    0.142234] audit: initializing netlink subsys (disabled)
[    0.143981] thermal_sys: Registered thermal governor 'step_wise'
[    0.145036] hw-breakpoint: found 6 breakpoint and 1 watchpoint registers.
[    0.145154] hw-breakpoint: maximum watchpoint size is 4 bytes.
[    0.145493] Serial: AMBA PL011 UART driver
[    0.151112] audit: type=2000 audit(0.140:1): state=initialized audit_enabled=0 res=1
[    0.160187] bcm2835-mbox 2000b880.mailbox: mailbox enabled
[    0.191113] raspberrypi-firmware soc:firmware: Attached to firmware from 2022-03-24T13:20:54, variant start
[    0.201153] raspberrypi-firmware soc:firmware: Firmware hash is e5a963efa66a1974127860b42e913d2374139ff5
[    0.262032] Kprobes globally optimized
[    0.272466] bcm2835-dma 20007000.dma: DMA legacy API manager, dmachans=0x1
[    0.276096] SCSI subsystem initialized
[    0.276738] usbcore: registered new interface driver usbfs
[    0.276920] usbcore: registered new interface driver hub
[    0.277084] usbcore: registered new device driver usb
[    0.277674] usb_phy_generic phy: supply vcc not found, using dummy regulator
[    0.278596] pps_core: LinuxPPS API ver. 1 registered
[    0.278672] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.278771] PTP clock support registered
[    0.281877] clocksource: Switched to clocksource timer
[    0.370365] VFS: Disk quotas dquot_6.6.0
[    0.370608] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    0.370926] FS-Cache: Loaded
[    0.371393] CacheFiles: Loaded
[    0.372730] simple-framebuffer 1eaa9000.framebuffer: framebuffer at 0x1eaa9000, 0x151800 bytes
[    0.372839] simple-framebuffer 1eaa9000.framebuffer: format=a8r8g8b8, mode=720x480x32, linelength=2880
[    2.316040] Console: switching to colour frame buffer device 90x30
[    2.325233] simple-framebuffer 1eaa9000.framebuffer: fb0: simplefb registered!
[    2.350708] NET: Registered PF_INET protocol family
[    2.354867] IP idents hash table entries: 8192 (order: 4, 65536 bytes, linear)
[    2.360331] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear)
[    2.367949] TCP established hash table entries: 4096 (order: 2, 16384 bytes, linear)
[    2.371976] TCP bind hash table entries: 4096 (order: 2, 16384 bytes, linear)
[    2.375979] TCP: Hash tables configured (established 4096 bind 4096)
[    2.380172] UDP hash table entries: 256 (order: 0, 4096 bytes, linear)
[    2.384369] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes, linear)
[    2.388971] NET: Registered PF_UNIX/PF_LOCAL protocol family
[    2.394705] RPC: Registered named UNIX socket transport module.
[    2.398827] RPC: Registered udp transport module.
[    2.402805] RPC: Registered tcp transport module.
[    2.406660] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    2.412559] armv6-pmu arm-pmu: hw perfevents: no irqs for PMU, sampling events not supported
[    2.420478] hw perfevents: enabled with armv6_1176 PMU driver, 3 counters available
[    2.429866] Initialise system trusted keyrings
[    2.434734] workingset: timestamp_bits=14 max_order=17 bucket_order=3
[    2.454069] zbud: loaded
[    2.461621] FS-Cache: Netfs 'nfs' registered for caching
[    2.467344] NFS: Registering the id_resolver key type
[    2.471447] Key type id_resolver registered
[    2.475469] Key type id_legacy registered
[    2.479543] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    2.483449] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering...
[    2.489597] Key type asymmetric registered
[    2.493540] Asymmetric key parser 'x509' registered
[    2.497458] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 247)
[    2.501169] io scheduler mq-deadline registered
[    2.504848] io scheduler kyber registered
[    2.524068] bcm2835-rng 20104000.rng: hwrng registered
[    2.528560] vc-mem: phys_addr:0x00000000 mem_base=0x1ec00000 mem_size:0x20000000(512 MiB)
[    2.538148] gpiomem-bcm2835 20200000.gpiomem: Initialised: Registers at 0x20200000
[    2.566824] brd: module loaded
[    2.585348] loop: module loaded
[    2.590544] Loading iSCSI transport class v2.0-870.
[    2.597691] usbcore: registered new interface driver smsc95xx
[    2.601558] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)
[    3.334020] Core Release: 2.80a
[    3.337668] Setting default values for core params
[    3.341198] Finished setting default values for core params
[    3.545225] Using Buffer DMA mode
[    3.548723] Periodic Transfer Interrupt Enhancement - disabled
[    3.552244] Multiprocessor Interrupt Enhancement - disabled
[    3.555760] OTG VER PARAM: 0, OTG VER FLAG: 0
[    3.559326] Dedicated Tx FIFOs mode

[    3.564631] WARN::dwc_otg_hcd_init:1074: FIQ DMA bounce buffers: virt = cbd04000 dma = 0x8bd04000 len=9024
[    3.575023] FIQ FSM acceleration enabled for :
               Non-periodic Split Transactions
               Periodic Split Transactions
               High-Speed Isochronous Endpoints
               Interrupt/Control Split Transaction hack enabled
[    3.591752] dwc_otg: Microframe scheduler enabled

[    3.592119] WARN::hcd_init_fiq:457: FIQ on core 0

[    3.598562] WARN::hcd_init_fiq:458: FIQ ASM at c0685988 length 36

[    3.604610] WARN::hcd_init_fiq:497: MPHI regs_base at dc810000
[    3.610870] dwc_otg 20980000.usb: DWC OTG Controller
[    3.614171] dwc_otg 20980000.usb: new USB bus registered, assigned bus number 1
[    3.617505] dwc_otg 20980000.usb: irq 56, io mem 0x00000000
[    3.620707] Init: Port Power? op_state=1
[    3.623880] Init: Power Port (0)
[    3.627538] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.15
[    3.633926] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    3.637264] usb usb1: Product: DWC OTG Controller
[    3.640556] usb usb1: Manufacturer: Linux 5.15.32+ dwc_otg_hcd
[    3.643942] usb usb1: SerialNumber: 20980000.usb
[    3.648695] hub 1-0:1.0: USB hub found
[    3.652208] hub 1-0:1.0: 1 port detected
[    3.656876] dwc_otg: FIQ enabled
[    3.656917] dwc_otg: NAK holdoff enabled
[    3.656934] dwc_otg: FIQ split-transaction FSM enabled
[    3.656969] Module dwc_common_port init
[    3.657671] usbcore: registered new interface driver usb-storage
[    3.661498] mousedev: PS/2 mouse device common for all mice
[    3.669132] sdhci: Secure Digital Host Controller Interface driver
[    3.672648] sdhci: Copyright(c) Pierre Ossman
[    3.676899] sdhci-pltfm: SDHCI platform and OF driver helper
[    3.681762] ledtrig-cpu: registered to indicate activity on CPUs
[    3.686524] hid: raw HID events driver (C) Jiri Kosina
[    3.690276] usbcore: registered new interface driver usbhid
[    3.693802] usbhid: USB HID core driver
[    3.705200] Initializing XFRM netlink socket
[    3.709139] NET: Registered PF_PACKET protocol family
[    3.712860] Key type dns_resolver registered
[    3.717207] registered taskstats version 1
[    3.720496] Loading compiled-in X.509 certificates
[    3.742539] uart-pl011 20201000.serial: cts_event_workaround enabled
[    3.746175] 20201000.serial: ttyAMA0 at MMIO 0x20201000 (irq = 81, base_baud = 0) is a PL011 rev2
[    3.757468] bcm2835-wdt bcm2835-wdt: Broadcom BCM2835 watchdog timer
[    3.761772] bcm2835-power bcm2835-power: Broadcom BCM2835 power domains driver
[    3.768052] mmc-bcm2835 20300000.mmcnr: mmc_debug:0 mmc_debug2:0
[    3.771535] mmc-bcm2835 20300000.mmcnr: DMA channel allocated
[    3.803125] sdhost: log_buf @ (ptrval) (8bd03000)
[    3.855698] mmc0: sdhost-bcm2835 loaded - DMA enabled (>1)
[    3.883185] of_cfs_init
[    3.887392] of_cfs_init: OK
[    3.893814] Waiting for root device PARTUUID=fb77dacb-02...
[    3.963217] mmc0: host does not support reading read-only switch, assuming write-enable
[    3.969841] mmc0: new high speed SDHC card at address aaaa
[    3.975484] mmcblk0: mmc0:aaaa SU32G 29.7 GiB 
[    3.985296]  mmcblk0: p1 p2
[    3.990746] mmcblk0: mmc0:aaaa SU32G 29.7 GiB
[    4.021138] mmc1: new high speed SDIO card at address 0001
[    4.025652] EXT4-fs (mmcblk0p2): INFO: recovery required on readonly filesystem
[    4.029180] EXT4-fs (mmcblk0p2): write access will be enabled during recovery
[    4.645008] EXT4-fs (mmcblk0p2): recovery complete
[    4.652774] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null). Quota mode: none.
[    4.659908] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[    4.672891] devtmpfs: mounted
[    4.683522] Freeing unused kernel image (initmem) memory: 436K
[    4.687220] Kernel memory protection not selected by kernel config.
[    4.690800] Run /sbin/init as init process
[    4.694317]   with arguments:
[    4.694341]     /sbin/init
[    4.694360]   with environment:
[    4.694373]     HOME=/
[    4.694388]     TERM=linux
[    5.343914] systemd[1]: System time before build time, advancing clock.
[    5.519817] NET: Registered PF_INET6 protocol family
[    5.526214] Segment Routing with IPv6
[    5.529914] In-situ OAM (IOAM) with IPv6
[    5.645623] systemd[1]: systemd 247.3-7+rpi1 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +ZSTD +SECCOMP +BLKID +ELFUTILS +KMOD +IDN2 -IDN +PCRE2 default-hierarchy=unified)
[    5.658634] systemd[1]: Detected architecture arm.
[    5.697216] systemd[1]: Set hostname to <WimPiZeroCamera.WimsWorld>.
[    8.823552] systemd[1]: Queued start job for default target Multi-User System.
[    8.832343] random: systemd: uninitialized urandom read (16 bytes read)
[    8.845466] systemd[1]: Created slice system-getty.slice.
[    8.855414] random: systemd: uninitialized urandom read (16 bytes read)
[    8.862590] systemd[1]: Created slice system-modprobe.slice.
[    8.871824] random: systemd: uninitialized urandom read (16 bytes read)
[    8.879006] systemd[1]: Created slice system-systemd\x2dfsck.slice.
[    8.890763] systemd[1]: Created slice User and Session Slice.
[    8.901199] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[    8.911716] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[    8.924537] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[    8.939726] systemd[1]: Reached target Local Encrypted Volumes.
[    8.950927] systemd[1]: Reached target Paths.
[    8.961450] systemd[1]: Reached target Slices.
[    8.971718] systemd[1]: Reached target Swap.
[    8.992662] systemd[1]: Listening on Syslog Socket.
[    9.004199] systemd[1]: Listening on fsck to fsckd communication Socket.
[    9.014989] systemd[1]: Listening on initctl Compatibility Named Pipe.
[    9.027787] systemd[1]: Listening on Journal Audit Socket.
[    9.039590] systemd[1]: Listening on Journal Socket (/dev/log).
[    9.051807] systemd[1]: Listening on Journal Socket.
[    9.064158] systemd[1]: Listening on udev Control Socket.
[    9.075266] systemd[1]: Listening on udev Kernel Socket.
[    9.086732] systemd[1]: Condition check resulted in Huge Pages File System being skipped.
[    9.105301] systemd[1]: Mounting POSIX Message Queue File System...
[    9.142938] systemd[1]: Mounting RPC Pipe File System...
[    9.196885] systemd[1]: Mounting Kernel Debug File System...
[    9.263061] systemd[1]: Mounting Kernel Trace File System...
[    9.283089] systemd[1]: Condition check resulted in Kernel Module supporting RPCSEC_GSS being skipped.
[    9.326171] systemd[1]: Starting Restore / save the current clock...
[    9.375407] systemd[1]: Starting Set the console keyboard layout...
[    9.444206] systemd[1]: Starting Create list of static device nodes for the current kernel...
[    9.573546] systemd[1]: Starting Load Kernel Module configfs...
[    9.644045] systemd[1]: Starting Load Kernel Module drm...
[    9.715011] systemd[1]: Starting Load Kernel Module fuse...
[    9.772720] systemd[1]: Condition check resulted in Set Up Additional Binary Formats being skipped.
[    9.883008] systemd[1]: Starting File System Check on Root Device...
[    9.959381] fuse: init (API version 7.34)
[   10.056397] systemd[1]: Starting Journal Service...
[   10.173562] systemd[1]: Starting Load Kernel Modules...
[   10.293577] systemd[1]: Starting Coldplug All udev Devices...
[   10.497717] systemd[1]: Mounted POSIX Message Queue File System.
[   10.568086] systemd[1]: Mounted RPC Pipe File System.
[   10.656644] systemd[1]: Mounted Kernel Debug File System.
[   10.735604] systemd[1]: Mounted Kernel Trace File System.
[   10.825311] systemd[1]: Finished Restore / save the current clock.
[   10.894803] systemd[1]: Finished Create list of static device nodes for the current kernel.
[   10.961170] systemd[1]: modprobe@configfs.service: Succeeded.
[   11.025586] systemd[1]: Finished Load Kernel Module configfs.
[   11.079411] systemd[1]: modprobe@drm.service: Succeeded.
[   11.132309] systemd[1]: Finished Load Kernel Module drm.
[   11.185670] systemd[1]: modprobe@fuse.service: Succeeded.
[   11.242902] systemd[1]: Finished Load Kernel Module fuse.
[   11.312343] systemd[1]: Finished Load Kernel Modules.
[   11.428197] systemd[1]: Mounting FUSE Control File System...
[   11.602844] systemd[1]: Mounting Kernel Configuration File System...
[   11.723998] systemd[1]: Started File System Check Daemon to report status.
[   11.863618] systemd[1]: Starting Apply Kernel Variables...
[   12.002325] systemd[1]: Finished File System Check on Root Device.
[   12.076580] systemd[1]: Mounted FUSE Control File System.
[   12.137696] systemd[1]: Mounted Kernel Configuration File System.
[   12.283330] systemd[1]: Starting Remount Root and Kernel File Systems...
[   12.454112] systemd[1]: Finished Apply Kernel Variables.
[   12.531005] systemd[1]: Started Journal Service.
[   13.322293] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null). Quota mode: none.
[   13.886004] systemd-journald[100]: Received client request to flush runtime journal.
[   13.928907] systemd-journald[100]: File /var/log/journal/68fa56d97f7c4ad18b377cc5780ee614/system.journal corrupted or uncleanly shut down, renaming and replacing.
[   18.180305] mc: Linux media interface: v0.10
[   18.288049] vc_sm_cma: module is from the staging directory, the quality is unknown, you have been warned.
[   18.290893] bcm2835_vc_sm_cma_probe: Videocore shared memory driver
[   18.290953] [vc_sm_connected_init]: start
[   18.343502] [vc_sm_connected_init]: installed successfully
[   18.492369] videodev: Linux video capture interface: v2.00
[   18.606837] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[   18.610017] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[   18.622220] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[   18.648452] bcm2835_isp: module is from the staging directory, the quality is unknown, you have been warned.
[   18.651155] bcm2835_v4l2: module is from the staging directory, the quality is unknown, you have been warned.
[   18.707824] bcm2835-isp bcm2835-isp: Device node output[0] registered as /dev/video13
[   18.723636] bcm2835-isp bcm2835-isp: Device node capture[0] registered as /dev/video14
[   18.726664] bcm2835-isp bcm2835-isp: Device node capture[1] registered as /dev/video15
[   18.736682] bcm2835-isp bcm2835-isp: Device node stats[2] registered as /dev/video16
[   18.738200] bcm2835-isp bcm2835-isp: Register output node 0 with media controller
[   18.738293] bcm2835-isp bcm2835-isp: Register capture node 1 with media controller
[   18.738336] bcm2835-isp bcm2835-isp: Register capture node 2 with media controller
[   18.738374] bcm2835-isp bcm2835-isp: Register capture node 3 with media controller
[   18.740160] bcm2835_codec: module is from the staging directory, the quality is unknown, you have been warned.
[   18.758906] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned.
[   18.782242] bcm2835-isp bcm2835-isp: Device node output[0] registered as /dev/video20
[   18.803152] bcm2835_audio bcm2835_audio: there is not valid maps for state default
[   18.806862] bcm2835-isp bcm2835-isp: Device node capture[0] registered as /dev/video21
[   18.809409] bcm2835-isp bcm2835-isp: Device node capture[1] registered as /dev/video22
[   18.823238] bcm2835-isp bcm2835-isp: Device node stats[2] registered as /dev/video23
[   18.823323] bcm2835-isp bcm2835-isp: Register output node 0 with media controller
[   18.823374] bcm2835-isp bcm2835-isp: Register capture node 1 with media controller
[   18.823412] bcm2835-isp bcm2835-isp: Register capture node 2 with media controller
[   18.823447] bcm2835-isp bcm2835-isp: Register capture node 3 with media controller
[   18.825769] bcm2835-isp bcm2835-isp: Loaded V4L2 bcm2835-isp
[   18.840766] bcm2835-codec bcm2835-codec: Device registered as /dev/video10
[   18.840912] bcm2835-codec bcm2835-codec: Loaded V4L2 decode
[   18.871541] bcm2835-codec bcm2835-codec: Device registered as /dev/video11
[   18.871647] bcm2835-codec bcm2835-codec: Loaded V4L2 encode
[   18.907048] bcm2835-codec bcm2835-codec: Device registered as /dev/video12
[   18.907151] bcm2835-codec bcm2835-codec: Loaded V4L2 isp
[   18.924107] bcm2835-codec bcm2835-codec: Device registered as /dev/video18
[   18.924213] bcm2835-codec bcm2835-codec: Loaded V4L2 image_fx
[   18.947826] bcm2835-codec bcm2835-codec: Device registered as /dev/video31
[   18.947931] bcm2835-codec bcm2835-codec: Loaded V4L2 encode_image
[   19.858213] i2c i2c-11: Added multiplexed i2c bus 0
[   19.859223] i2c 10-0036: Fixing up cyclic dependency with 20801000.csi
[   19.860015] i2c i2c-11: Added multiplexed i2c bus 10
[   21.188839] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[   21.706164] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[   21.750115] cfg80211: loaded regulatory.db is malformed or signature is missing/invalid
[   22.412389] brcmfmac: F1 signature read @0x18000000=0x1541a9a6
[   22.561652] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[   22.563589] brcmfmac mmc1:0001:1: Direct firmware load for brcm/brcmfmac43430-sdio.raspberrypi,model-zero-w.bin failed with error -2
[   22.572818] usbcore: registered new interface driver brcmfmac
[   22.885833] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[   22.886140] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[   22.899684] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM43430/1 wl0: Jul 19 2021 03:24:18 version 7.45.98 (TOB) (56df937 CY) FWID 01-8e14b897
[   23.403642] checking generic (1eaa9000 151800) vs hw (0 ffffffff)
[   23.403700] fb0: switching to vc4 from simple
[   23.460836] Console: switching to colour dummy device 80x30
[   23.502302] vc4-drm soc:gpu: bound 20400000.hvs (ops vc4_hvs_ops [vc4])
[   23.572366] Registered IR keymap rc-cec
[   23.572797] rc rc0: vc4 as /devices/platform/soc/20902000.hdmi/rc/rc0
[   23.573285] input: vc4 as /devices/platform/soc/20902000.hdmi/rc/rc0/input0
[   28.080722] 8021q: 802.1Q VLAN Support v1.8
[   29.503575] uart-pl011 20201000.serial: no DMA platform data
[   29.815882] Adding 102396k swap on /var/swap.  Priority:-2 extents:4 across:249856k SSFS
[   30.952146] random: crng init done
[   30.952182] random: 7 urandom warning(s) missed due to ratelimiting
[   33.878808] Bluetooth: Core ver 2.22
[   33.878983] NET: Registered PF_BLUETOOTH protocol family
[   33.879004] Bluetooth: HCI device and connection manager initialized
[   33.879041] Bluetooth: HCI socket layer initialized
[   33.879065] Bluetooth: L2CAP socket layer initialized
[   33.879109] Bluetooth: SCO socket layer initialized
[   33.898769] Bluetooth: HCI UART driver ver 2.3
[   33.898816] Bluetooth: HCI UART protocol H4 registered
[   33.898969] Bluetooth: HCI UART protocol Three-wire (H5) registered
[   33.899327] Bluetooth: HCI UART protocol Broadcom registered
[   34.402009] cam-dummy-reg: disabling
[   34.922194] vc4-drm soc:gpu: bound 20400000.hvs (ops vc4_hvs_ops [vc4])
[   34.942692] Registered IR keymap rc-cec
[   34.942995] rc rc0: vc4 as /devices/platform/soc/20902000.hdmi/rc/rc0
[   34.943342] input: vc4 as /devices/platform/soc/20902000.hdmi/rc/rc0/input1
[   34.951397] vc4-drm soc:gpu: bound 20902000.hdmi (ops vc4_hdmi_ops [vc4])
[   34.962416] vc4-drm soc:gpu: bound 20004000.txp (ops vc4_txp_ops [vc4])
[   34.963176] vc4-drm soc:gpu: bound 20206000.pixelvalve (ops vc4_crtc_ops [vc4])
[   34.963844] vc4-drm soc:gpu: bound 20207000.pixelvalve (ops vc4_crtc_ops [vc4])
[   34.964501] vc4-drm soc:gpu: bound 20807000.pixelvalve (ops vc4_crtc_ops [vc4])
[   34.965047] vc4-drm soc:gpu: bound 20c00000.v3d (ops vc4_v3d_ops [vc4])
[   35.004689] [drm] Initialized vc4 0.0.0 20140616 for soc:gpu on minor 0
[   35.005276] vc4-drm soc:gpu: [drm] Cannot find any crtc or sizes
[   36.267635] ov5647 10-0036: Consider updating driver ov5647 to match on endpoints
[   37.037078] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   37.037123] Bluetooth: BNEP filters: protocol multicast
[   37.037157] Bluetooth: BNEP socket layer initialized
[   37.216575] NET: Registered PF_ALG protocol family
[   39.103893] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save enabled
[   40.789395] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   42.261353] ICMPv6: process `dhcpcd' is using deprecated sysctl (syscall) net.ipv6.neigh.wlan0.retrans_time - use net.ipv6.neigh.wlan0.retrans_time_ms instead
[   45.282398] vc4-drm soc:gpu: [drm] Cannot find any crtc or sizes
[   86.203912] 8<--- cut here ---
[   86.203998] Unable to handle kernel paging request at virtual address bfa0dc9c
[   86.204036] pgd = 4ed01598
[   86.204067] [bfa0dc9c] *pgd=00000000
[   86.204113] Internal error: Oops: 80000005 [#1] ARM
[   86.204142] Modules linked in: cmac algif_hash aes_arm aes_generic ecb algif_skcipher af_alg bnep ov5647 snd_soc_hdmi_codec hci_uart btbcm bluetooth ecdh_generic ecc libaes 8021q garp stp llc vc4 brcmfmac cec brcmutil sha256_generic libsha256 drm_kms_helper cfg80211 snd_soc_core snd_compress snd_pcm_dmaengine syscopyarea rfkill sysfillrect i2c_mux_pinctrl sysimgblt raspberrypi_hwmon fb_sys_fops i2c_mux bcm2835_unicam v4l2_dv_timings v4l2_fwnode v4l2_async snd_bcm2835(C) bcm2835_codec(C) i2c_bcm2835 bcm2835_v4l2(C) v4l2_mem2mem bcm2835_isp(C) bcm2835_mmal_vchiq(C) snd_pcm videobuf2_vmalloc videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 snd_timer videobuf2_common snd vc_sm_cma(C) videodev mc uio_pdrv_genirq fixed uio fuse drm drm_panel_orientation_quirks backlight ip_tables x_tables ipv6
[   86.204627] CPU: 0 PID: 704 Comm: libcamera-vid Tainted: G         C        5.15.32+ #1538
[   86.204667] Hardware name: BCM2835
[   86.204687] PC is at 0xbfa0dc9c
[   86.204718] LR is at video_usercopy+0x4e8/0x5a8 [videodev]
[   86.205310] pc : [<bfa0dc9c>]    lr : [<bf1d1c90>]    psr: 60000013
[   86.205338] sp : c2d2de10  ip : c2d2de10  fp : c2d2deec
[   86.205362] r10: c0c1f028  r9 : 00000000  r8 : 00000000
[   86.205386] r7 : c2d2de3c  r6 : 00000000  r5 : c044560f  r4 : c050560f
[   86.205411] r3 : 00000000  r2 : bf1f3a40  r1 : 0a121acf  r0 : c399c2e8
[   86.205437] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
[   86.205467] Control: 00c5387d  Table: 059d0008  DAC: 00000055
[   86.205490] Register r0 information: slab kmalloc-8k start c399c000 pointer offset 744 size 8192
[   86.205564] Register r1 information: non-paged memory
[   86.205597] Register r2 information: 58-page vmalloc region starting at 0xbf1c9000 allocated at load_module+0xa74/0x25f8
[   86.205667] Register r3 information: NULL pointer
[   86.205696] Register r4 information: non-slab/vmalloc memory
[   86.205727] Register r5 information: non-slab/vmalloc memory
[   86.205755] Register r6 information: NULL pointer
[   86.205780] Register r7 information: non-slab/vmalloc memory
[   86.205809] Register r8 information: NULL pointer
[   86.205834] Register r9 information: NULL pointer
[   86.205862] Register r10 information: non-slab/vmalloc memory
[   86.205896] Register r11 information: non-slab/vmalloc memory
[   86.205924] Register r12 information: non-slab/vmalloc memory
[   86.205952] Process libcamera-vid (pid: 704, stack limit = 0x5546931d)
[   86.205993] Stack: (0xc2d2de10 to 0xc2d2e000)
[   86.206027] de00:                                     c2d2de3b c1b70ea0 c2d2de5c 00000000
[   86.206068] de20: 00000000 00000000 00000000 00000000 c3b2ed20 b58bc074 00c9c038 00000003
[   86.206104] de40: 00000002 00278d00 00004002 00000001 00000000 00000056 00000000 000180b5
[   86.206140] de60: 00000000 00000000 00000000 00000000 00000000 00000000 00000004 0000001d
[   86.206178] de80: 00278d00 00000000 00000000 c2d2de98 c0046c80 c000b100 c13b6014 c1b70ea0
[   86.206216] dea0: c0c2b2c0 c1888ea0 00000000 c41df8c0 c2d2dedc c2d2dec0 c0013798 0a121acf
[   86.206253] dec0: 00000000 bf1d1d50 c3b2ed21 00000000 c3b2ed20 c0c1f028 b58bc074 0000000e
[   86.206292] dee0: c2d2defc c2d2def0 bf1d1d6c bf1d17b4 c2d2df14 c2d2df00 bf1c9148 bf1d1d5c
[   86.206330] df00: c044560f c3b2ed21 c2d2dfa4 c2d2df18 c021fda0 bf1c9108 00000000 c0c1f028
[   86.206369] df20: c0008ff0 00c5387d c2d2df6c c2d2df38 c0014720 c001377c 00000000 00000000
[   86.206406] df40: 00000000 00000000 c0c9c038 60000010 c0008ff0 00c5387d 00000000 c0009104
[   86.206444] df60: c2d2df94 c2d2df70 c00f8f20 c00fa1fc b6968a5c 0a121acf ffffffff b58bc074
[   86.206481] df80: b4f11558 b4f0ba30 00000036 c00083e4 c2d2c000 00000000 00000000 c2d2dfa8
[   86.206518] dfa0: c0008260 c021fc98 b58bc074 b4f11558 0000000e c044560f b58bc074 b6dfb788
[   86.206555] dfc0: b58bc074 b4f11558 b4f0ba30 00000036 0bde9f08 00000014 b6ad9124 01167c88
[   86.206595] dfe0: b6aabe94 b58bc04c b6a354a0 b6bcb1ac 60000010 0000000e 00000000 00000000
[   86.206625] Backtrace: 
[   86.206653] [<bf1d17a8>] (video_usercopy [videodev]) from [<bf1d1d6c>] (video_ioctl2+0x1c/0x24 [videodev])
[   86.207763]  r10:0000000e r9:b58bc074 r8:c0c1f028 r7:c3b2ed20 r6:00000000 r5:c3b2ed21
[   86.207800]  r4:bf1d1d50
[   86.207820] [<bf1d1d50>] (video_ioctl2 [videodev]) from [<bf1c9148>] (v4l2_ioctl+0x4c/0x64 [videodev])
[   86.208594] [<bf1c90fc>] (v4l2_ioctl [videodev]) from [<c021fda0>] (sys_ioctl+0x114/0x9b0)
[   86.209024]  r5:c3b2ed21 r4:c044560f
[   86.209047] [<c021fc8c>] (sys_ioctl) from [<c0008260>] (ret_fast_syscall+0x0/0x1c)
[   86.209094] Exception stack(0xc2d2dfa8 to 0xc2d2dff0)
[   86.209128] dfa0:                   b58bc074 b4f11558 0000000e c044560f b58bc074 b6dfb788
[   86.209167] dfc0: b58bc074 b4f11558 b4f0ba30 00000036 0bde9f08 00000014 b6ad9124 01167c88
[   86.209202] dfe0: b6aabe94 b58bc04c b6a354a0 b6bcb1ac
[   86.209233]  r10:00000000 r9:c2d2c000 r8:c00083e4 r7:00000036 r6:b4f0ba30 r5:b4f11558
[   86.209261]  r4:b58bc074
[   86.209294] Code: bad PC value
[   86.209325] ---[ end trace 573ed3b4c982bd9e ]---

Adding the verbose option gets some interesting information.

pi@WimPiZeroCamera:~ $ libcamera-vid --verbose --timeout 0 --nopreview --listen --output tcp://0.0.0.0:5000
Options:
    verbose: 1
    info_text:#%frame (%fps fps) exp %exp ag %ag dg %dg
    timeout: 0
    width: 640
    height: 480
    output: tcp://0.0.0.0:5000
    post_process_file: 
    rawfull: 0
    preview: none
    qt-preview: 0
    transform: identity
    roi: all
    metering: centre
    exposure: normal
    ev: 0
    awb: auto
    flush: false
    wrap: 0
    brightness: 0
    contrast: 1
    saturation: 1
    sharpness: 1
    framerate: 30
    denoise: auto
    viewfinder-width: 0
    viewfinder-height: 0
    tuning-file: (libcamera)
    lores-width: 0
    lores-height: 0
    mode: unspecified
    viewfinder-mode: unspecified
    bitrate: 0
    profile: 
    level:  
    intra: 0
    inline: 0
    save-pts: 
    codec: h264
    quality (for MJPEG): 50
    keypress: 0
    signal: 0
    initial: record
    split: 0
    segment: 0
    circular: 0
Waiting for client to connect...
Client connection accepted
Running without preview window
Opening camera...
[0:01:26.152722968] [676]  INFO Camera camera_manager.cpp:293 libcamera v0.0.0+3544-22656360
[0:01:26.265051532] [688] ERROR CameraSensor camera_sensor.cpp:591 'ov5647 10-0036': Camera sensor does not support test pattern modes.
[0:01:26.418635710] [688]  INFO RPI raspberrypi.cpp:1356 Registered camera /base/soc/i2c0mux/i2c@1/ov5647@36 to Unicam device /dev/media3 and ISP device /dev/media0
Acquired camera /base/soc/i2c0mux/i2c@1/ov5647@36
Configuring video...
[0:01:26.426674609] [676]  INFO Camera camera.cpp:1029 configuring streams: (0) 640x480-YUV420
[0:01:26.430277012] [688]  INFO RPI raspberrypi.cpp:760 Sensor: /base/soc/i2c0mux/i2c@1/ov5647@36 - Selected sensor format: 640x480-SGBRG10_1X10 - Selected unicam format: 640x480-pGAA
Camera streams configured
Buffers allocated and mapped
Video setup complete
Opened H264Encoder on /dev/video11 as fd 25
Got 6 output buffers
Got 12 capture buffers
Codec streaming started
Requests created
Camera started!
Viewfinder frame 0
NetOutput: output buffer 0xb3463000 size 10770
Viewfinder frame 1
NetOutput: output buffer 0xb33e3000 size 5366
Viewfinder frame 2
NetOutput: output buffer 0xb3363000 size 5147
Viewfinder frame 3
NetOutput: output buffer 0xb32e3000 size 8520
Viewfinder frame 4
NetOutput: output buffer 0xb3263000 size 14873
Viewfinder frame 5
NetOutput: output buffer 0xb31e3000 size 17447
Viewfinder frame 6
NetOutput: output buffer 0xb3163000 size 17869
Viewfinder frame 7
NetOutput: output buffer 0xb30e3000 size 17804
Viewfinder frame 8
NetOutput: output buffer 0xb3063000 size 18022
Viewfinder frame 9
NetOutput: output buffer 0xb2fe3000 size 17997
Viewfinder frame 10
NetOutput: output buffer 0xb2f63000 size 17849
Viewfinder frame 11
NetOutput: output buffer 0xb2ee3000 size 17926
Viewfinder frame 12
NetOutput: output buffer 0xb3463000 size 18017
Viewfinder frame 13
NetOutput: output buffer 0xb33e3000 size 18010
Viewfinder frame 14
NetOutput: output buffer 0xb3363000 size 18047

Each time I try higher resolution, the pi program crashes, and sometimes it leaves the pi completely nonresponsive on the network, requiring a power cycle to recover it.

Google G Suite Reprieve

According to several articles, Google reversed course and allowed most people that had been using the service for a simple personal email domain to continue to do so.

I’m still quite happy that I moved to using google domains and its email forwarding feature. I believe my move is simpler to maintain in the long term, as long as google continues to allow email forwarding as part of their domains service.

DD-WRT Upgrade part two

The upgrade of DD-WRT that I performed this last Saturday brought the version from a 2019 release to a 2022 release. DD-WRT always recommends doing a factory reset of settings before and after flashing a new firmware. As far as I’ve been able to find out, DD-WRT doesn’t provide any way to back up the settings in any form other than a binary download that is not compatible between versions. This shortcoming makes upgrading a router with many customized settings a difficult process.

dd-wrt status screen

I performed the flash upgrade without resetting everything to defaults. It wasn’t until I was going to bed on Saturday night that I realized not all things were working properly. All of the ipv4 services appeared to be working properly. The ipv6 services were not working properly on my internal network clients.

I have a Microsoft Windows Server 2016 Essentials machine running several services including file sharing on my internal network. I also have my Windows 10 desktop, and several Raspberry Pi machines. Some of the Pi machines access the file shares on the server for both reading and writing.

I’ve found that when ipv6 is not allocating global addresses for the windows server and clients, file sharing doesn’t work properly. This is an issue I don’t understand, and don’t want to change the default operation of the windows server or windows client machines, which might create more long term maintenance headaches.

Among the customizations I have set in the router:

  • Router Name
  • Domain Name
  • Local IP (v4) address is 192.168.0.1 instead of 192.168.1.1
  • close to 35 DHCP reservations for machines that run on my internal network.
  • IPv6 enabled and configured for DHCPv6 with Prefix Delegation
  • DDNS service configured as in previous post.
  • Wireless SSID
  • Wireless Password
  • SSH access to the router with rsa keys entered for allowed machines.

I figured out that the primary settings for DHCP and DNS resolution are run using dnsmasq, and the configuration file can be viewed by looking at /tmp/dnsmasq.conf in the ssh console. All of the dns reservations are listed in the form of:

dhcp-host=b0:39:56:78:83:b0,GS108Tv2,192.168.0.123,1440m
dhcp-host=28:c6:8e:09:30:cb,GS108Tv2-LR,192.168.0.125,1440m
dhcp-host=04:a1:51:b0:a6:9a,GS108Tv2-OW,192.168.0.124,1440m

Copying all of them out of the console as one entry and adding them to the Additional Dnsmasq Options field was much easier than pasting MAC addresses, Hostnames, and IP addresses into separate field for each entry.

After adding them via the web interface here, they look exactly like the entries created in the static leases section of the interface. I was hoping that the system would parse them and display them in the static leases section, but it doesn’t seem to do that.

My SSH terminal program is configured to send a series of commands to the console each time I connect which reminds me of the current setup as well as how to examine it after a long time when I’ve not worked on the device.

  • date ; uptime
  • route -A inet
  • route -A inet6
  • ip6tables -vnL
  • cat /tmp/dnsmasq.conf
  • cat /tmp/dhcp6c.conf
  • cat /tmp/radvd.conf
  • ifconfig

I’m currently not dumping the iptables (v4) output simply because there are a large number of rules that don’t get used which takes up a lot of extra space scrolling by.

I’ve compared the ipv4 and ipv6 routes from when ipv6 was not working, and they are identical.

root@Netgear-R7000:~# route -A inet
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         br1-mballard-v1 0.0.0.0         UG    0      0        0 vlan2
24.35.91.128    *               255.255.255.192 U     0      0        0 vlan2
127.0.0.0       *               255.0.0.0       U     0      0        0 lo
192.168.0.0     *               255.255.255.0   U     0      0        0 br0
root@Netgear-R7000:~# route -A inet6
Kernel IPv6 routing table
Destination                                 Next Hop                                Flags Metric Ref    Use Iface
2604:4080:1304::/64                         ::                                      UA    256    0        0 vlan2   
2604:4080:1304:8010::/60                    ::                                      U     256    0        0 br0     
fe80::/64                                   ::                                      U     256    0        0 eth0    
fe80::/64                                   ::                                      U     256    0        0 vlan1   
fe80::/64                                   ::                                      U     256    0        0 eth1    
fe80::/64                                   ::                                      U     256    0        0 eth2    
fe80::/64                                   ::                                      U     256    1       23 br0     
fe80::/64                                   ::                                      U     256    0        0 vlan2   
::/0                                        fe80::22c:c8ff:fe42:24bf                UGDA  1024   2      302 vlan2   
::/0                                        ::                                      U     2048   2       38 vlan2   
::/0                                        ::                                      !n    -1     1      372 lo      
::1/128                                     ::                                      Un    0      3       15 lo      
2604:4080:1304::/128                        ::                                      Un    0      1        0 lo      
2604:4080:1304:0:b27f:b9ff:fe83:6590/128    ::                                      Un    0      3       75 lo      
2604:4080:1304:8010::/128                   ::                                      Un    0      1        0 lo      
2604:4080:1304:8010:b27f:b9ff:fe83:6591/128 ::                                      Un    0      3       64 lo      
fe80::/128                                  ::                                      Un    0      1        0 lo      
fe80::/128                                  ::                                      Un    0      1        0 lo      
fe80::/128                                  ::                                      Un    0      1        0 lo      
fe80::/128                                  ::                                      Un    0      1        0 lo      
fe80::/128                                  ::                                      Un    0      1        0 lo      
fe80::/128                                  ::                                      Un    0      1        0 lo      
fe80::b27f:b9ff:fe83:658f/128               ::                                      Un    0      1        0 lo      
fe80::b27f:b9ff:fe83:658f/128               ::                                      Un    0      1        0 lo      
fe80::b27f:b9ff:fe83:6590/128               ::                                      Un    0      3       61 lo      
fe80::b27f:b9ff:fe83:6591/128               ::                                      Un    0      1        0 lo      
fe80::b27f:b9ff:fe83:6591/128               ::                                      Un    0      3       24 lo      
fe80::b27f:b9ff:fe83:659e/128               ::                                      Un    0      1        0 lo      
ff00::/8                                    ::                                      U     256    0        0 eth0    
ff00::/8                                    ::                                      U     256    0        0 vlan1   
ff00::/8                                    ::                                      U     256    0        0 eth1    
ff00::/8                                    ::                                      U     256    0        0 eth2    
ff00::/8                                    ::                                      U     256    2      580 br0     
ff00::/8                                    ::                                      U     256    2       12 vlan2   
::/0                                        ::                                      !n    -1     1      372 lo      

I’ve looked at the ip6tables, and it also appears identical, beyond the counters.

root@Netgear-R7000:~# ip6tables -vnL
Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         
   12  2289 ACCEPT     all      *      *       ::/0                 ::/0                 state RELATED,ESTABLISHED
    5   376 ACCEPT     icmpv6    *      *       ::/0                 ::/0                
    0     0 ACCEPT     all      *      *       fe80::/64            ::/0                
    0     0 ACCEPT     all      br0    *       ::/0                 ::/0                
    0     0 ACCEPT     all      *      *       ::/0                 ::/0                

Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 ACCEPT     all      *      *       ::/0                 ::/0                 state RELATED,ESTABLISHED
    0     0 ACCEPT     all      *      vlan2   ::/0                 ::/0                
    0     0 ACCEPT     icmpv6    *      *       ::/0                 ::/0                 ipv6-icmptype 128 limit: avg 2/sec burst 5
    0     0 ACCEPT     all      *      *       ::/0                 ::/0                

Chain OUTPUT (policy ACCEPT 31 packets, 4287 bytes)
 pkts bytes target     prot opt in     out     source               destination         

I’d tried disabling Radvd on the IPv6 configuration gui and adding “enable-ra” to the Additional Dnsmasq Options, but that didn’t fix my problems. The current configuration has matching radv.conf files to the non working version.

root@Netgear-R7000:~# cat /tmp/radvd.conf
interface br0
{
 IgnoreIfMissing on;
 AdvSendAdvert on;
 MinRtrAdvInterval 3;
 MaxRtrAdvInterval 10;
 AdvHomeAgentFlag off;
 AdvManagedFlag off;
 AdvOtherConfigFlag on;
 AdvLinkMTU 1452;
 prefix 2604:4080:1304:8010::/64 
 {
  AdvOnLink on;
  AdvAutonomous on;
  AdvValidLifetime 30;
  AdvPreferredLifetime 20;
 };
 RDNSS 2607:f060:2::1 2607:f060:2:1::1{};
};

I spent a lot of time reading up on IPv6 and reminding myself of things I’d known in the past and forgotten. https://blog.dorianbolivar.com/2018/09/going-full-ipv6-with-dd-wrt.html?lr=1 is a well written post with links to more sources that I found especially helpful as it was written specifically using DD-WRT and IPv6. My only issue is that it was written nearly four years ago and may not have the same options in the DD-WRT gui as are currently available.

One of the items I added to the Additional Dnsmasq Options was a couple of host entries so that dnsmasq would resolve IPv6 addresses for my windows machines. It seems to speed up the IPv6 name discovery of my windows server while still pointing default DNS resolution at the router.

host-record entries

My conclusion is that I don’t understand what was different in the non-functioning setup I had with holdovers from the older version of DD-WRT, and going through the pain of re-installing from factory fresh configuration after each upgrade is worth the trouble. I’m still not satisfied with the best way of retrieving all of the configuration data into a text file that I can later run a difference test to see what’s changed, or needs to be changed.

DD-WRT upgrade?

I’ve been running DD-WRT on my Netgear r7000 router at home for quite a while. I have had it configured to update a dynamic dns entry using No-IP.com, and was thinking of trying out the dynamic dns details directly in google domains. The upgrade instructions for dd-wrt recommend flashing the configuration to factory settings after any upgrade, and then reconfiguring the unit. While I understand the reasoning, I find it extremely frustrating.

Here’s what the ssh login looked like before I upgraded:

DD-WRT v3.0-r39960M kongac (c) 2019 NewMedia-NET GmbH
Release: 06/08/19
Board: Netgear R7000


BusyBox v1.30.1 (2019-06-08 11:12:49 CEST) built-in shell (ash)

uptime
root@Netgear-R7000:~# uptime
 17:31:02 up 269 days,  3:42,  load average: 0.01, 0.03, 0.00

This is what the same login looked like after I upgraded.

DD-WRT v3.0-r48810 std (c) 2022 NewMedia-NET GmbH
Release: 05/06/22
Board: Netgear R7000
==========================================================
 
     ___  ___     _      _____  ______       ____  ___ 
    / _ \/ _ \___| | /| / / _ \/_  __/ _  __|_  / / _ \
   / // / // /___/ |/ |/ / , _/ / /   | |/ //_ <_/ // /
  /____/____/    |__/|__/_/|_| /_/    |___/____(_)___/ 
                                                     
                       DD-WRT v3.0
                   https://www.dd-wrt.com


==========================================================


BusyBox v1.35.0 (2022-05-06 03:36:35 +07) built-in shell (ash)

uptime
root@Netgear-R7000:~# uptime
 18:12:45 up 5 min,  load average: 0.31, 0.24, 0.11

I was hoping that the dynamic dns client section would list google domains as a protocol option, or even specifically as a service choice. While it does not, the interface has the ability to use custom settings.

No-IP DDNS setting

When I attempted to use the custom settings to directly update google domains, I was getting an error. I figured out that dd-wrt appears to be using https://github.com/troglobit/inadyn as it’s DDNS client code, but is using an old version. I’m not sure it is communicating the way google wants, and after spending 20 minutes fiddling with the settings, and getting an ugly looking error code full of html, I decided to let this sit for a while.

Sat May  7 18:40:55 2022: INADYN: Started 'INADYN Advanced version 1.96-ADV' - dynamic DNS updater.
Sat May  7 18:42:11 2022: W:'RC_DYNDNS_INVALID_RSP_FROM_IP_SERVER' (0x42) updating the IPs. (it 0)
Sat May  7 18:53:22 2022: I:INADYN: IP address for alias 'www.wimsworld.com' needs update to 'xxx.xxx.xxx.xxx'
Sat May  7 18:53:22 2022: W:INADYN: Response Code: 1
Sat May  7 18:53:22 2022: W:INADYN: Error validating DYNDNS svr answer. Check usr,pass,hostname! (HTTP/1.0 404 Not Found
Content-Type: text/html; charset=UTF-8
Referrer-Policy: no-referrer
Content-Length: 1561
Date: Sun, 08 May 2022 01:53:22 GMT

<!DOCTYPE html>
<html lang=en>
  <meta charset=utf-8>
  <meta name=viewport content="initial-scale=1, minimum-scale=1, width=device-width">
  <title>Error 404 (Not Found)!!1</title>
  <style>
    *{margin:0;padding:0}html,code{font:15px/22px arial,sans-serif}html{background:#fff;color:#222;padding:15px}body{margin:7% auto 0;max-width:390px;min-height:180px;padding:30px 0 15px}* > body{background:url(//www.google.com/images/errors/robot.png) 100% 5px no-repeat;padding-right:205px}p{margin:11px 0 22px;overflow:hidden}ins{color:#777;text-decoration:none}a img{border:0}@media screen and (max-width:772px){body{background:none;margin-top:0;max-width:none;padding-right:0}}#logo{background:url(//www.google.com/images/branding/googlelogo/1x/googlelogo_color_150x54dp.png) no-repeat;margin-left:-5Sat May  7 19:04:34 2022: W:INADYN: Response Code: 1

Retiring Google G Suite

I think it was in 2007 that I moved my email from a private server running smtp to Google Suite. I was got in with the free version at the time and have been able to keep using it without paying anything.

Google recently announced that they would be discontinuing the free plan for G Suite, and I had to decide whether to pay for an upgraded version or migrate to something else. I only have two users configured in my account for G Suite. Each G Suite account included 15GB of storage.

Several years ago when I was close to the 15GB limit. I decided to migrate to using my gmail.com account as my primary login and add storage to it instead of adding storage to my wimsworld.com account. I used an open source program called GMailBackup http://www.gmail-backup.com/download to backup all of my email including the labels from my G Suite account and import it to my GMail.com account. I then configured my wimsworld.com account to forward all the mail directly to my gmail.com account. That mostly worked well, though for some reason the G Suite account spam filter ran before forwarding mail to GMail.com. That meant I needed to periodically login to the G Suite account to check and make sure nothing important got stuffed in its spam folder.

G Suite Dashboard

Google initially declared that the free G Suite would be expiring in May, and have since extended the deadline to June, but I needed to get it dealt with before it became too time sensitive.

After looking at several alternatives, I came across the recent exit from beta for Google Domains. One of the features that Google Domains offers is email forwarding for the domain, which allowed me to forward the wimsworld.com email address to my gmail.com address directly. Since my gmail.com address was already configured to be able to send mail as my wimsworld.com address via the google smtp servers, the switch was almost transparent, and now all the spam catching is done in a single account.

I’d been hosting my DNS records for wimsworld.com on GoDaddy.com along with having periodic renewals of the domain name through them. Every year I’d go through the hassle of looking for discount codes and making sure I wasn’t upsold on more services that GoDaddy sells. Moving my domain to Google I was able to find an introductory code to reduce the price slightly while extending my domain by another year. The process cost me a total of $12 plus tax.

Google Domains

I’d downloaded my DNS records from GoDaddy before starting anything, to make sure I didn’t lose any data. Then I went to https://domains.google.com/ and initiated the transfer of the domain to google. I had browser windows open to both sites at the same time so I could accelerate the domain transfer by confirming what I was doing on both sites. The transfer moved the DNS records to google’s DNS servers and modified the SOA records, while keeping a few of my custom DNS records, including the MX records I had to deliver email to the G Suite mail servers.

Google Domains Email

Domains let me set up email forwarding, even though it won’t be active because of the existing MX records which knew that it was configured for G Suite. There was this big orange button to disable Google Workspace and enable forwarding. I was worried that it would actually disable to G Suite, so made sure I was logged in to the G Suite console and everything was prepared for cancellation before I hit the button. When I finally hit the button, it only modified the DNS records so to use the google domains email forwarding system and didn’t touch my G Suite status.

After configuring everything in domains, and seeing that it all appeared to work correctly with my gmail.com login, I still waited one more day before I cancelled my G Suite subscription.

Ready to cancel subscription
Reason I’m cancelling subscription
It took me several tries to get the correct admin email to complete cancelling my subscription
I no longer have a G Suite Legacy subscription!

The google domains email forwarding allows you to configure forwarding of specific email addresses to different accounts, and allows a significant number of rules to be set up. It also allows using wildcard forwarding to forward mail. On my wimsworld.com address, I’m using wildcard forwarding for all of the possible accounts to my gmail account. I’ve got other personal domains set up that needed email forwarding to multiple people, and have been able to set specific addresses be forwarded to specific recipients, and a wildcard to forward any other mail to me. I like the wildcard as a catch all for mail that I may have forgotten I was using.

Google Domains has a few other features that are interesting that may get a separate write up if I have time. Dynamic DNS Hosts and DNSSec are available without extra costs. I’m already using two different free dynamic DNS services but may investigate this as I believe it would work directly with my domain name instead of using a CNAME forwarding scheme.

Perils of Open Tabs

I have had several tabs open in my browser for an extended period of time, across multiple reboots of my computer, and connecting to several different networks.

Today I was traveling and happened to be using the WiFi in the Amex Centurion Lounge. Two of the background tabs in my browser reported privacy errors, and when I tried to go to them anyway, they were redirected to an ATT hotspot error page. What’s really frustrating is that now, I don’t know what one of the original URLS was.

Initial message when page didn’t load
Web Page Blocked

Both pages were hosted on opensource.com and I’m pretty sure were related to GIT, possibly with a group of handy commands to remember.

WAMU Theater

I’ve thought it funny for a long time that the WaMu theater at Lumen Field still goes by that name. I believe it was originally set up as a paid for name by Washington Mutual and used their WaMu logo in the title.

Washington Mutual Logo

I regularly get email about upcoming musical performances held in the venue and it’s the first time that I recognized the WaMu has been changed while still staying in place.

Washington Music Theater Logo

I wonder if this is because of the length of time that was originally paid for, even though Washington Mutual went out of business in 2008, or if there’s some other reason it’s still called WAMU Theater.

Sola Instrument Changes

When I purchased my sailboat I knew that I was going to want to make changes to the instruments. It had a Garmin Chartplotter and a Garmin AIS receiver. The chartplotter was several years old and all of my recent experience has been with B&G chartplotters designed explicitly for sailing.

Before dealing with the chartplotter I spent a lot of time understanding the existing platform. What I found was that the chartplotter and ais reciever were connected via a NMEA 2000 backbone, but not connected to anything else.

The boat was configured with raymarine wind and speed instruments, as well as a raymarine autopilot but they were not connected together.

Raymarine Original Connections

There were two switches on my breaker panel, one for instruments in general, and a separate one for the autopilot.

Reading the manuals for the smartpilot controller I learned that if it was connected to the wind instruments I could sail to a wind angle as an alternative to sailing to a magnetic compass heading. Because I planned to do a lot of single handed sailing, this was definitely something I wanted to implement, and was the first change I made to the boat wiring.

Raymarine Smartpilot Connected to Instruments

The only drawback of this connection system is that when the autopilot is turned off and the instruments are left on, the smartpilot controller alarms and reports loss of communication with the controller. This mainly happens in the evening when I want to turn off the autopilot to save power but leave the instruments on to monitor depth and wind speeds.

SmartPilot S2 connects to the compass, rudder position sensor, and rudder drive unit

The next change I made was to add a Raymarine Seatalk-Seatalkng Converter A06064 to connect the legacy Seatalk network to the NMEA2k network. The Seatalk-Seatalkng converter allows the old seatalk instruments to communicate with seatalkng instruments. Seatalkng is essentially the same as NMEA 2000 (NMEA2K).

I replaced the Garmin GPSMAP 740 with a B&G Zeus3S

I replaced the Garmin AIS 300 Receiver with an em-trak B954 AIS Transceiver

I replaced a Sony Stereo and CD Changer with a Fusion Apollo MS-RA670 Stereo

My current set of interconnected instruments are as follows.

I’ve been thinking about changing my speed and depth instruments to newer models, with the possibility of using newer depth transducers that work with the B&G and look forward to provide a 3d view of the ground surface forward of the boat. The big question that I’ve not been able to come across an answer yet is if the Seatalk-Seatalkng converter communicates both directions, and if the apparent wind and water speed data were to be moved to the Seatalkng side of the converter, would the autopilot still be able to steer to the wind angle.

Clear Silcone

Sola Lights

Since this was my first year of boat ownership, I wanted to put lights up for the holiday season. I put them up in mid November and took them down in early January. I used three strings of lights, one at the forestay, and one on each of the backstays.

I have a full canvas cockpit cover, which meant that one of the light string connections could be out of the weather inside the cockpit, but the other connections would be outside.

I ran a single string up the forestay with the plug at the base, dropped into the anchor locker so it wasn’t sitting on the deck. I ran an extension cable from the cockpit over the deck to the anchor locker.

I joined two light strings together and used the main halyard to pull them up the backstays.

Clear RTV Silicone Sealant 66B

I had this tube of silicone sitting around so put a small bit on the flat part of each outside plug before connecting them. It seems to have worked well because it was still intact when I took the lights down, and the lights were still working properly.

After separating the cables, peeling the used silicone away was easy.

I’d done this treatment for the end plug on the forestay that was raised to the top of the mast, the join with the extension cable at the bottom of the forestay, and the joint of the two strings at the top of the backstays.