Well, enough motivation yes, enough time is kind of an issue. I have to analyse scheduling latency and jitter in flightcontrol software on the navio2 for my master thesis. Analysing Ardupilot and PX4 would be great, but I can not spend months of trying to get PX4 to run. I have 6 months from now to create, implement and run all tests and write the thesis. So I can not spend weeks full time to fix the integration. If you are positive, that we can achieve this in a reasonable time frame (optimally with SIL/HIL compatiblity), that would be great.
So dmesg in the px4 console (via Mavlink or directly on the commandline running px4) results in
Invalid command: dmesg
type 'help' for a list of commands
dmseg on another system console (second ssh connection onto the pi) returns the attached output (there is no rc reciver and gps antenna attached currently, I could do that, if it is required)
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 5.10.11-emlid-v7l+ (alexey@kernelcruncher) (arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0, GNU ld (GNU Binutils for Ubuntu) 2.30) #2 SMP PREEMPT Wed Apr 28 12:09:19 MSK 2021
[ 0.000000] CPU: ARMv7 Processor [410fd083] revision 3 (ARMv7), cr=30c5383d
[ 0.000000] CPU: div instructions available: patching division code
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
[ 0.000000] OF: fdt: Machine model: Raspberry Pi 4 Model B Rev 1.5
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] Reserved memory: created CMA memory pool at 0x000000001ec00000, size 256 MiB
[ 0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000000000000-0x000000002fffffff]
[ 0.000000] Normal empty
[ 0.000000] HighMem [mem 0x0000000030000000-0x00000000fbffffff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000000000000-0x0000000037ffffff]
[ 0.000000] node 0: [mem 0x0000000040000000-0x00000000fbffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x00000000fbffffff]
[ 0.000000] On node 0 totalpages: 999424
[ 0.000000] DMA zone: 2304 pages used for memmap
[ 0.000000] DMA zone: 0 pages reserved
[ 0.000000] DMA zone: 196608 pages, LIFO batch:63
[ 0.000000] HighMem zone: 802816 pages, LIFO batch:63
[ 0.000000] percpu: Embedded 19 pages/cpu s48780 r8192 d20852 u77824
[ 0.000000] pcpu-alloc: s48780 r8192 d20852 u77824 alloc=19*4096
[ 0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 997120
[ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 smsc95xx.macaddr=E4:5F:01:E2:5E:FE vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 dwc_otg.lpm_enable=0 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait
[ 0.000000] Kernel parameter elevator= does not have any effect anymore.
Please use sysfs to set IO scheduler for individual devices.
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] software IO TLB: mapped [mem 0x0000000017cc0000-0x000000001bcc0000] (64MB)
[ 0.000000] Memory: 3602196K/3997696K available (10240K kernel code, 1488K rwdata, 3420K rodata, 2048K init, 894K bss, 133356K reserved, 262144K cma-reserved, 3211264K highmem)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[ 0.000000] ftrace: allocating 33526 entries in 66 pages
[ 0.000000] ftrace: allocated 66 pages with 2 groups
[ 0.000000] rcu: Preemptible hierarchical RCU implementation.
[ 0.000000] Trampoline variant of Tasks RCU enabled.
[ 0.000000] Rude variant of Tasks RCU enabled.
[ 0.000000] Tracing variant of Tasks RCU enabled.
[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[ 0.000000] GIC: Using split EOI/Deactivate mode
[ 0.000000] random: get_random_bytes called from start_kernel+0x3d0/0x5a4 with crng_init=0
[ 0.000009] sched_clock: 32 bits at 1000kHz, resolution 1000ns, wraps every 2147483647500ns
[ 0.000038] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275 ns
[ 0.000106] bcm2835: system timer (irq = 25)
[ 0.000789] arch_timer: cp15 timer(s) running at 54.00MHz (phys).
[ 0.000811] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0xc743ce346, max_idle_ns: 440795203123 ns
[ 0.000833] sched_clock: 56 bits at 54MHz, resolution 18ns, wraps every 4398046511102ns
[ 0.000852] Switching to timer-based delay loop, resolution 18ns
[ 0.001121] Console: colour dummy device 80x30
[ 0.002153] printk: console [tty1] enabled
[ 0.002227] Calibrating delay loop (skipped), value calculated using timer frequency.. 108.00 BogoMIPS (lpj=540000)
[ 0.002291] pid_max: default: 32768 minimum: 301
[ 0.002480] LSM: Security Framework initializing
[ 0.002686] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[ 0.002739] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[ 0.004325] Disabling memory control group subsystem
[ 0.004470] CPU: Testing write buffer coherency: ok
[ 0.005007] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.006652] Setting up static identity map for 0x200000 - 0x20003c
[ 0.006915] rcu: Hierarchical SRCU implementation.
[ 0.008372] smp: Bringing up secondary CPUs ...
[ 0.009806] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.011519] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
[ 0.013064] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
[ 0.013260] smp: Brought up 1 node, 4 CPUs
[ 0.013337] SMP: Total of 4 processors activated (432.00 BogoMIPS).
[ 0.013374] CPU: All CPU(s) started in HYP mode.
[ 0.013406] CPU: Virtualization extensions available.
[ 0.014292] devtmpfs: initialized
[ 0.029125] VFP support v0.3: implementor 41 architecture 3 part 40 variant 8 rev 0
[ 0.029389] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.029453] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
[ 0.036768] pinctrl core: initialized pinctrl subsystem
[ 0.037912] NET: Registered protocol family 16
[ 0.042488] DMA: preallocated 1024 KiB pool for atomic coherent allocations
[ 0.043355] audit: initializing netlink subsys (disabled)
[ 0.043690] audit: type=2000 audit(0.040:1): state=initialized audit_enabled=0 res=1
[ 0.044311] thermal_sys: Registered thermal governor 'step_wise'
[ 0.045033] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[ 0.045101] hw-breakpoint: maximum watchpoint size is 8 bytes.
[ 0.045523] Serial: AMBA PL011 UART driver
[ 0.085347] bcm2835-mbox fe00b880.mailbox: mailbox enabled
[ 0.100960] raspberrypi-firmware soc:firmware: Attached to firmware from 2021-12-01T15:02:46, variant start_x
[ 0.110977] raspberrypi-firmware soc:firmware: Firmware hash is 71bd3109023a0c8575585ba87cbb374d2eeb038f
[ 0.160186] bcm2835-dma fe007000.dma: DMA legacy API manager, dmachans=0x1
[ 0.165296] vgaarb: loaded
[ 0.165804] SCSI subsystem initialized
[ 0.166072] usbcore: registered new interface driver usbfs
[ 0.166159] usbcore: registered new interface driver hub
[ 0.166274] usbcore: registered new device driver usb
[ 0.166697] usb_phy_generic phy: supply vcc not found, using dummy regulator
[ 0.168720] clocksource: Switched to clocksource arch_sys_counter
[ 1.420592] VFS: Disk quotas dquot_6.6.0
[ 1.420724] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 1.420937] FS-Cache: Loaded
[ 1.421188] CacheFiles: Loaded
[ 1.432387] NET: Registered protocol family 2
[ 1.433762] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
[ 1.433839] TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear)
[ 1.433932] TCP bind hash table entries: 8192 (order: 4, 65536 bytes, linear)
[ 1.434025] TCP: Hash tables configured (established 8192 bind 8192)
[ 1.434223] UDP hash table entries: 512 (order: 2, 16384 bytes, linear)
[ 1.434286] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear)
[ 1.434612] NET: Registered protocol family 1
[ 1.435434] RPC: Registered named UNIX socket transport module.
[ 1.435474] RPC: Registered udp transport module.
[ 1.435508] RPC: Registered tcp transport module.
[ 1.435540] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 1.435585] PCI: CLS 0 bytes, default 64
[ 1.439239] Initialise system trusted keyrings
[ 1.439565] workingset: timestamp_bits=14 max_order=20 bucket_order=6
[ 1.448645] zbud: loaded
[ 1.450694] FS-Cache: Netfs 'nfs' registered for caching
[ 1.451556] NFS: Registering the id_resolver key type
[ 1.451615] Key type id_resolver registered
[ 1.451648] Key type id_legacy registered
[ 1.451693] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 1.452817] Key type asymmetric registered
[ 1.452853] Asymmetric key parser 'x509' registered
[ 1.453081] bounce: pool size: 64 pages
[ 1.453141] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[ 1.453398] io scheduler mq-deadline registered
[ 1.453436] io scheduler kyber registered
[ 1.458545] brcm-pcie fd500000.pcie: host bridge /scb/pcie@7d500000 ranges:
[ 1.458607] brcm-pcie fd500000.pcie: No bus range found for /scb/pcie@7d500000, using [bus 00-ff]
[ 1.458878] brcm-pcie fd500000.pcie: MEM 0x0600000000..0x063fffffff -> 0x00c0000000
[ 1.459009] brcm-pcie fd500000.pcie: IB MEM 0x0000000000..0x00ffffffff -> 0x0400000000
[ 1.520819] brcm-pcie fd500000.pcie: link up, 5.0 GT/s PCIe x1 (SSC)
[ 1.521278] brcm-pcie fd500000.pcie: PCI host bridge to bus 0000:00
[ 1.521322] pci_bus 0000:00: root bus resource [bus 00-ff]
[ 1.521364] pci_bus 0000:00: root bus resource [mem 0x600000000-0x63fffffff] (bus address [0xc0000000-0xffffffff])
[ 1.521493] pci 0000:00:00.0: [14e4:2711] type 01 class 0x060400
[ 1.521800] pci 0000:00:00.0: PME# supported from D0 D3hot
[ 1.525425] PCI: bus0: Fast back to back transfers disabled
[ 1.525472] pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[ 1.525950] pci 0000:01:00.0: [1106:3483] type 00 class 0x0c0330
[ 1.526107] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x00000fff 64bit]
[ 1.526632] pci 0000:01:00.0: PME# supported from D0 D3hot
[ 1.530273] PCI: bus1: Fast back to back transfers disabled
[ 1.530318] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01
[ 1.530383] pci 0000:00:00.0: BAR 8: assigned [mem 0x600000000-0x6000fffff]
[ 1.530432] pci 0000:01:00.0: BAR 0: assigned [mem 0x600000000-0x600000fff 64bit]
[ 1.530546] pci 0000:00:00.0: PCI bridge to [bus 01]
[ 1.530593] pci 0000:00:00.0: bridge window [mem 0x600000000-0x6000fffff]
[ 1.531086] pcieport 0000:00:00.0: enabling device (0140 -> 0142)
[ 1.531382] pcieport 0000:00:00.0: PME: Signaling with IRQ 65
[ 1.536495] Serial: 8250/16550 driver, 1 ports, IRQ sharing enabled
[ 1.540065] iproc-rng200 fe104000.rng: hwrng registered
[ 1.540438] vc-mem: phys_addr:0x00000000 mem_base=0x3ec00000 mem_size:0x40000000(1024 MiB)
[ 1.541470] gpiomem-bcm2835 fe200000.gpiomem: Initialised: Registers at 0xfe200000
[ 1.556407] brd: module loaded
[ 1.571305] loop: module loaded
[ 1.573244] Loading iSCSI transport class v2.0-870.
[ 1.575949] libphy: Fixed MDIO Bus: probed
[ 1.577442] bcmgenet fd580000.ethernet: GENET 5.0 EPHY: 0x0000
[ 1.598764] libphy: bcmgenet MII bus: probed
[ 1.678906] unimac-mdio unimac-mdio.-19: Broadcom UniMAC MDIO bus
[ 1.680218] usbcore: registered new interface driver r8152
[ 1.680330] usbcore: registered new interface driver lan78xx
[ 1.680420] usbcore: registered new interface driver smsc95xx
[ 1.728827] xhci_hcd 0000:01:00.0: xHCI Host Controller
[ 1.728886] xhci_hcd 0000:01:00.0: new USB bus registered, assigned bus number 1
[ 1.732558] xhci_hcd 0000:01:00.0: hcc params 0x002841eb hci version 0x100 quirks 0x0000030000000890
[ 1.734111] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.10
[ 1.734161] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.734205] usb usb1: Product: xHCI Host Controller
[ 1.734240] usb usb1: Manufacturer: Linux 5.10.11-emlid-v7l+ xhci-hcd
[ 1.734278] usb usb1: SerialNumber: 0000:01:00.0
[ 1.735117] hub 1-0:1.0: USB hub found
[ 1.735242] hub 1-0:1.0: 1 port detected
[ 1.736023] xhci_hcd 0000:01:00.0: xHCI Host Controller
[ 1.736071] xhci_hcd 0000:01:00.0: new USB bus registered, assigned bus number 2
[ 1.736123] xhci_hcd 0000:01:00.0: Host supports USB 3.0 SuperSpeed
[ 1.736709] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.10
[ 1.736756] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.736798] usb usb2: Product: xHCI Host Controller
[ 1.736833] usb usb2: Manufacturer: Linux 5.10.11-emlid-v7l+ xhci-hcd
[ 1.736870] usb usb2: SerialNumber: 0000:01:00.0
[ 1.737674] hub 2-0:1.0: USB hub found
[ 1.737773] hub 2-0:1.0: 4 ports detected
[ 1.739763] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)
[ 1.740157] dwc_otg: FIQ enabled
[ 1.740174] dwc_otg: NAK holdoff enabled
[ 1.740189] dwc_otg: FIQ split-transaction FSM enabled
[ 1.740208] Module dwc_common_port init
[ 1.740714] usbcore: registered new interface driver uas
[ 1.740857] usbcore: registered new interface driver usb-storage
[ 1.741113] mousedev: PS/2 mouse device common for all mice
[ 1.743423] bcm2835-wdt bcm2835-wdt: Broadcom BCM2835 watchdog timer
[ 1.744300] sdhci: Secure Digital Host Controller Interface driver
[ 1.744338] sdhci: Copyright(c) Pierre Ossman
[ 1.745177] mmc-bcm2835 fe300000.mmcnr: could not get clk, deferring probe
[ 1.745929] sdhci-pltfm: SDHCI platform and OF driver helper
[ 1.750483] ledtrig-cpu: registered to indicate activity on CPUs
[ 1.750889] hid: raw HID events driver (C) Jiri Kosina
[ 1.751135] usbcore: registered new interface driver usbhid
[ 1.751172] usbhid: USB HID core driver
[ 1.757062] Initializing XFRM netlink socket
[ 1.757136] NET: Registered protocol family 17
[ 1.757296] Key type dns_resolver registered
[ 1.757661] Registering SWP/SWPB emulation handler
[ 1.757879] registered taskstats version 1
[ 1.757923] Loading compiled-in X.509 certificates
[ 1.758907] Key type ._fscrypt registered
[ 1.758943] Key type .fscrypt registered
[ 1.758976] Key type fscrypt-provisioning registered
[ 1.772408] uart-pl011 fe201000.serial: there is not valid maps for state default
[ 1.772737] uart-pl011 fe201000.serial: cts_event_workaround enabled
[ 1.772845] fe201000.serial: ttyAMA0 at MMIO 0xfe201000 (irq = 36, base_baud = 0) is a PL011 rev2
[ 1.780350] bcm2835-power bcm2835-power: Broadcom BCM2835 power domains driver
[ 1.781611] mmc-bcm2835 fe300000.mmcnr: mmc_debug:0 mmc_debug2:0
[ 1.781652] mmc-bcm2835 fe300000.mmcnr: DMA channel allocated
[ 1.813353] of_cfs_init
[ 1.813546] of_cfs_init: OK
[ 1.831503] mmc1: queuing unknown CIS tuple 0x80 (2 bytes)
[ 1.833191] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[ 1.834873] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[ 1.838043] mmc1: queuing unknown CIS tuple 0x80 (7 bytes)
[ 1.841240] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[ 1.848756] mmc0: SDHCI controller on fe340000.emmc2 [fe340000.emmc2] using ADMA
[ 1.849673] Waiting for root device /dev/mmcblk0p2...
[ 1.895478] random: fast init done
[ 1.919854] mmc1: new high speed SDIO card at address 0001
[ 1.955914] mmc0: new ultra high speed DDR50 SDXC card at address 5048
[ 1.956918] mmcblk0: mmc0:5048 SC64G 59.5 GiB
[ 1.965909] mmcblk0: p1 p2
[ 1.991159] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 1.991278] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[ 1.996166] devtmpfs: mounted
[ 2.005146] Freeing unused kernel memory: 2048K
[ 2.049088] Run /sbin/init as init process
[ 2.049126] with arguments:
[ 2.049143] /sbin/init
[ 2.049160] with environment:
[ 2.049176] HOME=/
[ 2.049191] TERM=linux
[ 2.098769] usb 1-1: new high-speed USB device number 2 using xhci_hcd
[ 2.281421] usb 1-1: New USB device found, idVendor=2109, idProduct=3431, bcdDevice= 4.21
[ 2.281476] usb 1-1: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[ 2.281517] usb 1-1: Product: USB2.0 Hub
[ 2.283576] hub 1-1:1.0: USB hub found
[ 2.283876] hub 1-1:1.0: 4 ports detected
[ 3.347165] systemd[1]: System time before build time, advancing clock.
[ 3.557760] NET: Registered protocol family 10
[ 3.559423] Segment Routing with IPv6
[ 3.688339] systemd[1]: systemd 241 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=hybrid)
[ 3.689550] systemd[1]: Detected architecture arm.
[ 3.743307] systemd[1]: Set hostname to <navio>.
[ 4.626713] random: systemd: uninitialized urandom read (16 bytes read)
[ 4.637221] random: systemd: uninitialized urandom read (16 bytes read)
[ 4.638143] systemd[1]: Listening on fsck to fsckd communication Socket.
[ 4.639002] random: systemd: uninitialized urandom read (16 bytes read)
[ 4.639650] systemd[1]: Listening on udev Kernel Socket.
[ 4.641089] systemd[1]: Listening on Journal Audit Socket.
[ 4.642245] systemd[1]: Listening on Syslog Socket.
[ 4.643398] systemd[1]: Listening on udev Control Socket.
[ 4.644236] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[ 4.648220] systemd[1]: Created slice system-getty.slice.
[ 4.787903] i2c /dev entries driver
[ 5.633059] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 5.762360] systemd-journald[118]: Received request to flush runtime journal from PID 1
[ 6.501497] rpivid-mem feb00000.hevc-decoder: rpivid-hevcmem initialised: Registers at 0xfeb00000 length 0x00010000
[ 6.503099] rpivid-mem feb10000.rpivid-local-intc: rpivid-intcmem initialised: Registers at 0xfeb10000 length 0x00001000
[ 6.503932] rpivid-mem feb20000.h264-decoder: rpivid-h264mem initialised: Registers at 0xfeb20000 length 0x00010000
[ 6.505584] rpivid-mem feb30000.vp9-decoder: rpivid-vp9mem initialised: Registers at 0xfeb30000 length 0x00010000
[ 6.695796] vc_sm_cma: module is from the staging directory, the quality is unknown, you have been warned.
[ 6.698601] bcm2835_vc_sm_cma_probe: Videocore shared memory driver
[ 6.698638] [vc_sm_connected_init]: start
[ 6.703230] [vc_sm_connected_init]: installed successfully
[ 6.808637] mc: Linux media interface: v0.10
[ 6.925964] videodev: Linux video capture interface: v2.00
[ 7.317612] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[ 7.351542] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[ 7.354147] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[ 7.450640] bcm2835_v4l2: module is from the staging directory, the quality is unknown, you have been warned.
[ 7.464354] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[ 7.470775] bcm2835_isp: module is from the staging directory, the quality is unknown, you have been warned.
[ 7.496438] bcm2835_codec: module is from the staging directory, the quality is unknown, you have been warned.
[ 7.511028] [drm] No displays found. Consider forcing hotplug if HDMI is attached
[ 7.511155] vc4-drm gpu: bound fe600000.firmwarekms (ops vc4_fkms_ops [vc4])
[ 7.511673] [drm] Initialized vc4 0.0.0 20140616 for gpu on minor 0
[ 7.633728] brcmfmac: F1 signature read @0x18000000=0x15264345
[ 7.649096] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[ 7.649784] usbcore: registered new interface driver brcmfmac
[ 7.728866] brcmfmac mmc1:0001:1: Direct firmware load for brcm/brcmfmac43455-sdio.raspberrypi,4-model-b.txt failed with error -2
[ 7.827788] rcio_core: loading out-of-tree module taints kernel.
[ 7.842963] rcio spi1.0: rcio_status: Firmware CRC: 0xb9064332
[ 7.844392] rcio spi1.0: rcio_status: Board type: 0x0 (navio2)
[ 7.845762] rcio spi1.0: rcio_status: Git hash: 7851d1a
[ 7.847394] rcio spi1.0: rcio_pwm: Advanced frequency configuration is supported on this firmware
[ 7.867150] rcio spi1.0: rcio_pwm: updated freq on grp 0 to 50
[ 7.868533] rcio spi1.0: rcio_pwm: updated freq on grp 1 to 50
[ 7.874226] rcio spi1.0: rcio_pwm: updated freq on grp 2 to 50
[ 7.875596] rcio spi1.0: rcio_pwm: updated freq on grp 3 to 50
[ 7.877004] RC config 0 set successfully
[ 7.878377] RC config 1 set successfully
[ 7.885463] RC config 2 set successfully
[ 7.886853] RC config 3 set successfully
[ 7.888237] RC config 4 set successfully
[ 7.890701] RC config 5 set successfully
[ 7.892116] RC config 6 set successfully
[ 7.893492] RC config 7 set successfully
[ 7.894873] RC config 8 set successfully
[ 7.896259] RC config 9 set successfully
[ 7.897608] RC config 10 set successfully
[ 7.901423] RC config 11 set successfully
[ 7.904670] RC config 12 set successfully
[ 7.906068] RC config 13 set successfully
[ 7.907440] RC config 14 set successfully
[ 7.917241] RC config 15 set successfully
[ 7.917268] rcio spi1.0: rcio_pwm: PWM probe success
[ 7.921729] rcio spi1.0: rcio_gpio: GPIO is supported on this firmware
[ 7.921778] rcio spi1.0: rcio_gpio: registered gpio module
[ 7.922186] rcio spi1.0: rcio_gpio: gpiochip added successfully under gpio500
[ 7.990057] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[ 8.003162] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Jan 4 2021 19:56:29 version 7.45.229 (617f1f5 CY) FWID 01-2dbd9d2e
[ 8.108795] bcm2835-isp bcm2835-isp: Device node output[0] registered as /dev/video13
[ 8.109355] bcm2835-isp bcm2835-isp: Device node capture[0] registered as /dev/video14
[ 8.109713] bcm2835-codec bcm2835-codec: Device registered as /dev/video10
[ 8.109761] bcm2835-codec bcm2835-codec: Loaded V4L2 decode
[ 8.110252] bcm2835-isp bcm2835-isp: Device node capture[1] registered as /dev/video15
[ 8.110754] bcm2835-isp bcm2835-isp: Device node stats[2] registered as /dev/video16
[ 8.110787] bcm2835-isp bcm2835-isp: Register output node 0 with media controller
[ 8.110813] bcm2835-isp bcm2835-isp: Register capture node 1 with media controller
[ 8.110838] bcm2835-isp bcm2835-isp: Register capture node 2 with media controller
[ 8.110861] bcm2835-isp bcm2835-isp: Register capture node 3 with media controller
[ 8.111086] bcm2835-isp bcm2835-isp: Loaded V4L2 bcm2835-isp
[ 8.124348] bcm2835-codec bcm2835-codec: Device registered as /dev/video11
[ 8.124399] bcm2835-codec bcm2835-codec: Loaded V4L2 encode
[ 8.132240] bcm2835-codec bcm2835-codec: Device registered as /dev/video12
[ 8.132306] bcm2835-codec bcm2835-codec: Loaded V4L2 isp
[ 9.084735] random: crng init done
[ 9.084753] random: 7 urandom warning(s) missed due to ratelimiting
[ 10.786935] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save enabled
[ 10.919809] 8021q: 802.1Q VLAN Support v1.8
[ 11.258812] Adding 102396k swap on /var/swap. Priority:-2 extents:1 across:102396k SSFS
[ 11.533094] bcmgenet fd580000.ethernet: configuring instance for external RGMII (RX delay)
[ 11.533533] bcmgenet fd580000.ethernet eth0: Link is Down
[ 15.678991] bcmgenet fd580000.ethernet eth0: Link is Up - 1Gbps/Full - flow control off
[ 15.679058] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 139.926022] uart-pl011 fe201000.serial: no DMA platform data
[ 140.024525] rcio spi1.0: rcio_pwm: Exporting pin [0] OK
[ 140.034857] rcio spi1.0: rcio_pwm: Exporting pin [1] OK
[ 140.046190] rcio spi1.0: rcio_pwm: Exporting pin [2] OK
[ 140.058409] rcio spi1.0: rcio_pwm: Exporting pin [3] OK
[ 140.069132] rcio spi1.0: rcio_pwm: Exporting pin [4] OK
[ 140.082472] rcio spi1.0: rcio_pwm: Exporting pin [5] OK
[ 140.095464] rcio spi1.0: rcio_pwm: Exporting pin [6] OK
[ 140.106049] rcio spi1.0: rcio_pwm: Exporting pin [7] OK
[ 140.108031] rcio spi1.0: rcio_pwm: requested update on 0 to 400
[ 140.108151] rcio spi1.0: rcio_pwm: requested update on 0 to 400
[ 140.108850] rcio spi1.0: rcio_pwm: requested update on 0 to 400
[ 140.109057] rcio spi1.0: rcio_pwm: requested update on 0 to 400
[ 140.109202] rcio spi1.0: rcio_pwm: requested update on 1 to 400
[ 140.109345] rcio spi1.0: rcio_pwm: requested update on 1 to 400
[ 140.109479] rcio spi1.0: rcio_pwm: requested update on 1 to 400
[ 140.109595] rcio spi1.0: rcio_pwm: requested update on 1 to 400
[ 140.115880] rcio spi1.0: rcio_pwm: updated freq on grp 0 to 400
[ 140.120302] rcio spi1.0: rcio_pwm: updated freq on grp 1 to 400
