Hallo Michael,
anbei das Ergebnis von dmseg.
VG Andreas
# dmesg
[ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[ 0.000000] Linux version 5.10.46-v8 (root@2608cf77b838) (aarch64-buildroot-linux-gnu-gcc.br_real (Buildroot 2021.08.3-dirty) 10.3.0, GNU ld (GNU Binutils) 2.36.1) #2 SMP PREEMPT Sat Jan 1 23:48:09 UTC 2022
[ 0.000000] Machine model: Raspberry Pi Compute Module 3 Plus Rev 1.0
[ 0.000000] efi: UEFI not found.
[ 0.000000] Reserved memory: created CMA memory pool at 0x000000003a000000, size 64 MiB
[ 0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000000000000-0x000000003dffffff]
[ 0.000000] DMA32 empty
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000000000000-0x000000003dffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x000000003dffffff]
[ 0.000000] On node 0 totalpages: 253952
[ 0.000000] DMA zone: 3968 pages used for memmap
[ 0.000000] DMA zone: 0 pages reserved
[ 0.000000] DMA zone: 253952 pages, LIFO batch:63
[ 0.000000] percpu: Embedded 29 pages/cpu s86680 r0 d32104 u118784
[ 0.000000] pcpu-alloc: s86680 r0 d32104 u118784 alloc=29*4096
[ 0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
[ 0.000000] Detected VIPT I-cache on CPU0
[ 0.000000] CPU features: detected: ARM erratum 845719
[ 0.000000] CPU features: kernel page table isolation forced ON by KASLR
[ 0.000000] CPU features: detected: Kernel page table isolation (KPTI)
[ 0.000000] CPU features: detected: ARM erratum 843419
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 249984
[ 0.000000] Kernel command line: coherent_pool=1M snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 bcm2708_fb.fbwidth=656 bcm2708_fb.fbheight=416 bcm2708_fb.fbswap=1 smsc95xx.macaddr=B8:27:EB:7C:BF:28 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait
[ 0.000000] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes, linear)
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] Memory: 894600K/1015808K available (9920K kernel code, 1714K rwdata, 2620K rodata, 19520K init, 1184K bss, 55672K reserved, 65536K cma-reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[ 0.000000] ftrace: allocating 31142 entries in 122 pages
[ 0.000000] ftrace: allocated 122 pages with 5 groups
[ 0.000000] rcu: Preemptible hierarchical RCU implementation.
[ 0.000000] rcu: RCU event tracing is enabled.
[ 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 100 jiffies.
[ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[ 0.000000] random: get_random_bytes called from start_kernel+0x3c0/0x584 with crng_init=0
[ 0.000000] arch_timer: cp15 timer(s) running at 19.20MHz (phys).
[ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x46d987e47, max_idle_ns: 440795202767 ns
[ 0.000007] sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every 4398046511078ns
[ 0.000282] Console: colour dummy device 80x25
[ 0.001175] printk: console [tty1] enabled
[ 0.001250] Calibrating delay loop (skipped), value calculated using timer frequency.. 38.40 BogoMIPS (lpj=19200)
[ 0.001313] pid_max: default: 32768 minimum: 301
[ 0.001547] LSM: Security Framework initializing
[ 0.001820] Mount-cache hash table entries: 2048 (order: 2, 16384 bytes, linear)
[ 0.001883] Mountpoint-cache hash table entries: 2048 (order: 2, 16384 bytes, linear)
[ 0.003539] cgroup: Disabling memory control group subsystem
[ 0.006893] rcu: Hierarchical SRCU implementation.
[ 0.007734] EFI services will not be available.
[ 0.008531] smp: Bringing up secondary CPUs ...
[ 0.009993] Detected VIPT I-cache on CPU1
[ 0.010080] CPU1: Booted secondary processor 0x0000000001 [0x410fd034]
[ 0.011731] Detected VIPT I-cache on CPU2
[ 0.011792] CPU2: Booted secondary processor 0x0000000002 [0x410fd034]
[ 0.013421] Detected VIPT I-cache on CPU3
[ 0.013476] CPU3: Booted secondary processor 0x0000000003 [0x410fd034]
[ 0.013696] smp: Brought up 1 node, 4 CPUs
[ 0.013844] SMP: Total of 4 processors activated.
[ 0.013880] CPU features: detected: 32-bit EL0 Support
[ 0.013916] CPU features: detected: CRC32 instructions
[ 0.048615] CPU: All CPU(s) started at EL2
[ 0.048731] alternatives: patching kernel code
[ 0.050655] devtmpfs: initialized
[ 0.072132] Enabled cp15_barrier support
[ 0.072212] Enabled setend support
[ 0.072268] KASLR enabled
[ 0.072532] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns
[ 0.072596] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
[ 0.076205] pinctrl core: initialized pinctrl subsystem
[ 0.076810] DMI not present or invalid.
[ 0.077355] NET: Registered protocol family 16
[ 0.088357] DMA: preallocated 1024 KiB GFP_KERNEL pool for atomic allocations
[ 0.088906] DMA: preallocated 1024 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
[ 0.090568] DMA: preallocated 1024 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
[ 0.090851] audit: initializing netlink subsys (disabled)
[ 0.091340] audit: type=2000 audit(0.090:1): state=initialized audit_enabled=0 res=1
[ 0.091978] thermal_sys: Registered thermal governor 'step_wise'
[ 0.092291] cpuidle: using governor menu
[ 0.092626] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[ 0.092938] ASID allocator initialised with 32768 entries
[ 0.093143] Serial: AMBA PL011 UART driver
[ 0.117823] bcm2835-mbox 3f00b880.mailbox: mailbox enabled
[ 0.121233] raspberrypi-firmware soc:firmware: Attached to firmware from 2021-07-19T13:37:22, variant start
[ 0.122239] raspberrypi-firmware soc:firmware: Firmware hash is 1c9a23ddbd2fe5f73ace75b62e9c5a2ff10974ab
[ 0.165567] bcm2835-dma 3f007000.dma: DMA legacy API manager, dmachans=0x1
[ 0.168475] SCSI subsystem initialized
[ 0.168806] usbcore: registered new interface driver usbfs
[ 0.168891] usbcore: registered new interface driver hub
[ 0.169003] usbcore: registered new device driver usb
[ 0.170907] clocksource: Switched to clocksource arch_sys_counter
[ 1.917387] VFS: Disk quotas dquot_6.6.0
[ 1.917542] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 1.917807] FS-Cache: Loaded
[ 1.918226] CacheFiles: Loaded
[ 1.932709] NET: Registered protocol family 2
[ 1.933083] IP idents hash table entries: 16384 (order: 5, 131072 bytes, linear)
[ 1.934721] tcp_listen_portaddr_hash hash table entries: 512 (order: 1, 8192 bytes, linear)
[ 1.934799] TCP established hash table entries: 8192 (order: 4, 65536 bytes, linear)
[ 1.935114] TCP bind hash table entries: 8192 (order: 5, 131072 bytes, linear)
[ 1.935341] TCP: Hash tables configured (established 8192 bind 8192)
[ 1.935653] UDP hash table entries: 512 (order: 2, 16384 bytes, linear)
[ 1.935737] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear)
[ 1.936181] NET: Registered protocol family 1
[ 1.937444] RPC: Registered named UNIX socket transport module.
[ 1.937484] RPC: Registered udp transport module.
[ 1.937516] RPC: Registered tcp transport module.
[ 1.937548] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 3.346247] hw perfevents: enabled with armv8_cortex_a53 PMU driver, 7 counters available
[ 3.348267] Initialise system trusted keyrings
[ 3.348791] workingset: timestamp_bits=46 max_order=18 bucket_order=0
[ 3.359373] zbud: loaded
[ 3.361803] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 3.362242] FS-Cache: Netfs 'nfs' registered for caching
[ 3.363278] NFS: Registering the id_resolver key type
[ 3.363349] Key type id_resolver registered
[ 3.363382] Key type id_legacy registered
[ 3.363578] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 3.363620] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering...
[ 3.364401] Key type asymmetric registered
[ 3.364439] Asymmetric key parser 'x509' registered
[ 3.364525] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[ 3.364570] io scheduler mq-deadline registered
[ 3.364604] io scheduler kyber registered
[ 3.370173] bcm2708_fb soc:fb: FB found 1 display(s)
[ 3.388523] Console: switching to colour frame buffer device 82x26
[ 3.393520] bcm2708_fb soc:fb: Registered framebuffer for display 0, size 656x416
[ 3.405816] bcm2835-rng 3f104000.rng: hwrng registered
[ 3.408942] vc-mem: phys_addr:0x00000000 mem_base=0x3ec00000 mem_size:0x40000000(1024 MiB)
[ 3.415152] gpiomem-bcm2835 3f200000.gpiomem: Initialised: Registers at 0x3f200000
[ 3.420913] cacheinfo: Unable to detect cache hierarchy for CPU 0
[ 3.439796] brd: module loaded
[ 3.461920] loop: module loaded
[ 3.466793] Loading iSCSI transport class v2.0-870.
[ 3.471749] libphy: Fixed MDIO Bus: probed
[ 3.474689] usbcore: registered new interface driver lan78xx
[ 3.477392] usbcore: registered new interface driver smsc95xx
[ 3.480003] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)
[ 4.211158] Core Release: 2.80a
[ 4.213648] Setting default values for core params
[ 4.216165] Finished setting default values for core params
[ 4.419208] Using Buffer DMA mode
[ 4.421731] Periodic Transfer Interrupt Enhancement - disabled
[ 4.424312] Multiprocessor Interrupt Enhancement - disabled
[ 4.426867] OTG VER PARAM: 0, OTG VER FLAG: 0
[ 4.429361] Dedicated Tx FIFOs mode
[ 4.432550]
[ 4.432574] WARN::dwc_otg_hcd_init:1072: FIQ DMA bounce buffers: virt = ffffffc010461000 dma = 0x00000000fa410000 len=9024
[ 4.439510] FIQ FSM acceleration enabled for :
[ 4.439510] Non-periodic Split Transactions
[ 4.439510] Periodic Split Transactions
[ 4.439510] High-Speed Isochronous Endpoints
[ 4.439510] Interrupt/Control Split Transaction hack enabled
[ 4.450229] dwc_otg: Microframe scheduler enabled
[ 4.450281]
[ 4.450300] WARN::hcd_init_fiq:496: MPHI regs_base at ffffffc010075000
[ 4.454699] dwc_otg 3f980000.usb: DWC OTG Controller
[ 4.457056] dwc_otg 3f980000.usb: new USB bus registered, assigned bus number 1
[ 4.459478] dwc_otg 3f980000.usb: irq 74, io mem 0x00000000
[ 4.461831] Init: Port Power? op_state=1
[ 4.464121] Init: Power Port (0)
[ 4.466831] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.10
[ 4.471404] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 4.473863] usb usb1: Product: DWC OTG Controller
[ 4.476293] usb usb1: Manufacturer: Linux 5.10.46-v8 dwc_otg_hcd
[ 4.478756] usb usb1: SerialNumber: 3f980000.usb
[ 4.482213] hub 1-0:1.0: USB hub found
[ 4.484695] hub 1-0:1.0: 1 port detected
[ 4.488591] dwc_otg: FIQ enabled
[ 4.488608] dwc_otg: NAK holdoff enabled
[ 4.488623] dwc_otg: FIQ split-transaction FSM enabled
[ 4.488646] Module dwc_common_port init
[ 4.489615] usbcore: registered new interface driver usb-storage
[ 4.492281] i2c /dev entries driver
[ 4.497724] bcm2835-wdt bcm2835-wdt: Broadcom BCM2835 watchdog timer
[ 4.503974] sdhci: Secure Digital Host Controller Interface driver
[ 4.506491] sdhci: Copyright(c) Pierre Ossman
[ 4.509917] sdhost-bcm2835 3f202000.mmc: could not get clk, deferring probe
[ 4.512811] sdhci-pltfm: SDHCI platform and OF driver helper
[ 4.516341] ledtrig-cpu: registered to indicate activity on CPUs
[ 4.519201] hid: raw HID events driver (C) Jiri Kosina
[ 4.521853] usbcore: registered new interface driver usbhid
[ 4.524372] usbhid: USB HID core driver
[ 4.533449] Initializing XFRM netlink socket
[ 4.536062] NET: Registered protocol family 17
[ 4.538705] Key type dns_resolver registered
[ 4.541616] registered taskstats version 1
[ 4.543927] Loading compiled-in X.509 certificates
[ 4.546829] Key type ._fscrypt registered
[ 4.549081] Key type .fscrypt registered
[ 4.551272] Key type fscrypt-provisioning registered
[ 4.572183] uart-pl011 3f201000.serial: cts_event_workaround enabled
[ 4.574687] 3f201000.serial: ttyAMA0 at MMIO 0x3f201000 (irq = 99, base_baud = 0) is a PL011 rev2
[ 5.662564] printk: console [ttyAMA0] enabled
[ 5.670070] Indeed it is in host mode hprt0 = 00021501
[ 5.682154] KGDB: Registered I/O driver kgdboc
[ 5.747762] bcm2835-power bcm2835-power: Broadcom BCM2835 power domains driver
[ 5.760632] random: fast init done
[ 5.769017] sdhost: log_buf @ (____ptrval____) (c639f000)
[ 5.826035] mmc0: sdhost-bcm2835 loaded - DMA enabled (>1)
[ 5.839328] of_cfs_init
[ 5.844478] of_cfs_init: OK
[ 5.859983] usb 1-1: new high-speed USB device number 2 using dwc_otg
[ 5.869313] Indeed it is in host mode hprt0 = 00001101
[ 5.898637] Freeing unused kernel memory: 19520K
[ 5.905769] Run /init as init process
[ 5.911738] with arguments:
[ 5.911754] /init
[ 5.911768] with environment:
[ 5.911782] HOME=/
[ 5.911797] TERM=linux
[ 5.911811] kgdboc=ttyAMA0,115200
[ 5.947307] mmc0: new high speed MMC card at address 0001
[ 5.957480] mmcblk0: mmc0:0001 8GTF4R 7.28 GiB
[ 5.965277] mmcblk0boot0: mmc0:0001 8GTF4R partition 1 4.00 MiB
[ 5.974627] mmcblk0boot1: mmc0:0001 8GTF4R partition 2 4.00 MiB
[ 5.983493] mmcblk0rpmb: mmc0:0001 8GTF4R partition 3 512 KiB, chardev (245:0)
[ 5.996568] mmcblk0: p1 p2 p3
[ 6.100442] usb 1-1: New USB device found, idVendor=0424, idProduct=9512, bcdDevice= 2.00
[ 6.112937] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 6.123489] hub 1-1:1.0: USB hub found
[ 6.129648] hub 1-1:1.0: 3 ports detected
[ 6.421957] usb 1-1.1: new high-speed USB device number 3 using dwc_otg
[ 6.519408] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00, bcdDevice= 2.00
[ 6.532228] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 6.544921] smsc95xx v2.0.0
[ 6.586283] libphy: smsc95xx-mdiobus: probed
[ 6.594208] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-3f980000.usb-1.1, smsc95xx USB 2.0 Ethernet, b8:27:eb:7c:bf:28
[ 7.124497] random: crng init done
[ 8.127089] EXT4-fs (mmcblk0p2): recovery complete
[ 8.135442] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 8.732060] EXT4-fs (mmcblk0p3): recovery complete
[ 8.740350] EXT4-fs (mmcblk0p3): mounted filesystem with ordered data mode. Opts: (null)
[ 9.095094] SMSC LAN8700 usb-001:003:01: attached PHY driver [SMSC LAN8700] (mii_bus:phy_addr=usb-001:003:01, irq=POLL)
[ 9.112221] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
[ 9.138875] smsc95xx 1-1.1:1.0 eth0: Link is Down
[ 12.259741] smsc95xx 1-1.1:1.0 eth0: Link is Up - 100Mbps/Full - flow control off