Debian @ NSA325v2 doesn't work after update: Problem reappeared! (no replies)

The issue described here came back also with my new usb flash drive!

Furthermore, now NAS is connected to an UPS to avoid voltage breaks or overshoots.

Using netconsole I found out kernel correctly boots up, but the NAS doesn't answer to ping neither smb or ssh connection work.
Accessing the usb flash by my linux laptop I can see last log.
This is in /var/log/dmesg:

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 5.2.9-kirkwood-tld-1 (root@tldDebian) (gcc version 6.3.0 20170516 (Debian 6.3.0-18+deb9u1)) #1 PREEMPT Sat Aug 17 15:00:56 PDT 2019
[    0.000000] CPU: Feroceon 88FR131 [56251311] revision 1 (ARMv5TE), cr=0005397f
[    0.000000] CPU: VIVT data cache, VIVT instruction cache
[    0.000000] OF: fdt: Machine model: ZyXEL NSA325
[    0.000000] Memory policy: Data cache writeback
[    0.000000] On node 0 totalpages: 131072
[    0.000000]   Normal zone: 1024 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 131072 pages, LIFO batch:31
[    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[    0.000000] pcpu-alloc: [0] 0 
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 130048
[    0.000000] Kernel command line: console=ttyS0,115200 root=LABEL=rootfs rootdelay=10 mtdparts=orion_nand:0x100000(uboot),0x80000(stock_uboot_env),0x80000(key_store),0x80000(info),0xA00000(etc),0xA00000(kernel_1),0x2FC0000(rootfs1),0xA00000(kernel_2),0x2FC0000(rootfs2) init=/bin/systemd
[    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.000000] Memory: 494676K/524288K available (9216K kernel code, 868K rwdata, 3400K rodata, 1024K init, 301K bss, 29612K reserved, 0K cma-reserved)
[    0.000000] random: get_random_u32 called from cache_alloc_refill+0x38c/0x928 with crng_init=0
[    0.000000] rcu: Preemptible hierarchical RCU implementation.
[    0.000000] 	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] clocksource: orion_clocksource: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 9556302233 ns
[    0.000008] sched_clock: 32 bits at 200MHz, resolution 5ns, wraps every 10737418237ns
[    0.000039] Switching to timer-based delay loop, resolution 5ns
[    0.000644] Console: colour dummy device 80x30
[    0.000688] Calibrating delay loop (skipped), value calculated using timer frequency.. 400.00 BogoMIPS (lpj=2000000)
[    0.000709] pid_max: default: 32768 minimum: 301
[    0.001010] LSM: Security Framework initializing
[    0.001162] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.001184] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.001888] *** VALIDATE proc ***
[    0.002110] *** VALIDATE cgroup1 ***
[    0.002131] *** VALIDATE cgroup2 ***
[    0.002214] CPU: Testing write buffer coherency: ok
[    0.003675] Setting up static identity map for 0x100000 - 0x100058
[    0.003935] mvebu-soc-id: MVEBU SoC ID=0x6282, Rev=0x1
[    0.004180] rcu: Hierarchical SRCU implementation.
[    0.006811] devtmpfs: initialized
[    0.012272] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.012298] futex hash table entries: 256 (order: -1, 3072 bytes)
[    0.012511] xor: measuring software checksum speed
[    0.110097]    arm4regs  :  1452.800 MB/sec
[    0.210065]    8regs     :   872.400 MB/sec
[    0.310061]    32regs    :  1268.400 MB/sec
[    0.310077] xor: using function: arm4regs (1452.800 MB/sec)
[    0.310095] prandom: seed boundary self test passed
[    0.313228] prandom: 100 self tests passed
[    0.313238] pinctrl core: initialized pinctrl subsystem
[    0.314465] NET: Registered protocol family 16
[    0.314900] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.315549] audit: initializing netlink subsys (disabled)
[    0.316591] audit: type=2000 audit(0.310:1): state=initialized audit_enabled=0 res=1
[    0.316695] cpuidle: using governor ladder
[    0.316760] cpuidle: using governor menu
[    0.317230] Feroceon L2: Enabling L2
[    0.317271] Feroceon L2: Cache support initialised.
[    0.322068] No ATAGs?
[    2.560046] random: fast init done
[    4.743667] alg: No test for lzo-rle (lzo-rle-generic)
[    4.743950] alg: No test for lzo-rle (lzo-rle-scomp)
[    4.920382] raid6: int32x8  gen()   171 MB/s
[    5.090131] raid6: int32x8  xor()   115 MB/s
[    5.260378] raid6: int32x4  gen()   173 MB/s
[    5.430160] raid6: int32x4  xor()   112 MB/s
[    5.600118] raid6: int32x2  gen()   177 MB/s
[    5.770049] raid6: int32x2  xor()   125 MB/s
[    5.940334] raid6: int32x1  gen()   134 MB/s
[    6.110342] raid6: int32x1  xor()    92 MB/s
[    6.110351] raid6: using algorithm int32x2 gen() 177 MB/s
[    6.110358] raid6: .... xor() 125 MB/s, rmw enabled
[    6.110364] raid6: using intx1 recovery algorithm
[    6.110584] vgaarb: loaded
[    6.110987] SCSI subsystem initialized
[    6.111182] libata version 3.00 loaded.
[    6.111392] usbcore: registered new interface driver usbfs
[    6.111440] usbcore: registered new interface driver hub
[    6.111506] usbcore: registered new device driver usb
[    6.111652] pps_core: LinuxPPS API ver. 1 registered
[    6.111661] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    6.111681] PTP clock support registered
[    6.112744] clocksource: Switched to clocksource orion_clocksource
[    6.886671] VFS: Disk quotas dquot_6.6.0
[    6.886757] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    6.894285] NET: Registered protocol family 2
[    6.894952] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes)
[    6.894984] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[    6.895038] TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
[    6.895089] TCP: Hash tables configured (established 4096 bind 4096)
[    6.895164] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    6.895188] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    6.895375] NET: Registered protocol family 1
[    6.895906] RPC: Registered named UNIX socket transport module.
[    6.895917] RPC: Registered udp transport module.
[    6.895924] RPC: Registered tcp transport module.
[    6.895931] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    6.895943] PCI: CLS 0 bytes, default 32
[    6.896140] Trying to unpack rootfs image as initramfs...
[    7.539872] Freeing initrd memory: 9488K
[    7.540047] NetWinder Floating Point Emulator V0.97 (double precision)
[    7.541082] Initialise system trusted keyrings
[    7.541123] Key type blacklist registered
[    7.541315] workingset: timestamp_bits=30 max_order=17 bucket_order=0
[    7.541403] zbud: loaded
[    7.542292] NFS: Registering the id_resolver key type
[    7.542316] Key type id_resolver registered
[    7.542324] Key type id_legacy registered
[    7.542341] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    7.542354] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[    7.542593] jffs2: version 2.2. (NAND) (SUMMARY)  \xc2\xa9 2001-2006 Red Hat, Inc.
[    7.542843] fuse: init (API version 7.31)
[    7.543192] orangefs_debugfs_init: called with debug mask: :none: :0:
[    7.543340] orangefs_init: module version upstream loaded
[    7.543350] SGI XFS with ACLs, security attributes, realtime, scrub, no debug enabled
[    7.556938] async_tx: api initialized (async)
[    7.556959] Key type asymmetric registered
[    7.556967] Asymmetric key parser 'x509' registered
[    7.557030] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246)
[    7.558192] kirkwood-pinctrl f1010000.pin-controller: registered pinctrl driver
[    7.559723] mvebu-pcie mbus@f1000000:pcie@82000000: PCI host bridge to bus 0000:00
[    7.559742] pci_bus 0000:00: root bus resource [bus 00-ff]
[    7.559754] pci_bus 0000:00: root bus resource [mem 0xe0000000-0xefffffff]
[    7.559764] pci_bus 0000:00: root bus resource [io  0x1000-0xeffff]
[    7.559775] pci_bus 0000:00: scanning bus
[    7.559870] pci 0000:00:01.0: [11ab:6282] type 01 class 0x060400
[    7.559904] pci 0000:00:01.0: reg 0x38: [mem 0x00000000-0x000007ff pref]
[    7.561092] pci_bus 0000:00: fixups for bus
[    7.561103] PCI: bus0: Fast back to back transfers disabled
[    7.561118] pci 0000:00:01.0: scanning [bus 00-00] behind bridge, pass 0
[    7.561125] pci 0000:00:01.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[    7.561140] pci 0000:00:01.0: scanning [bus 00-00] behind bridge, pass 1
[    7.561245] pci_bus 0000:01: scanning bus
[    7.561283] pci 0000:01:00.0: [1033:0194] type 00 class 0x0c0330
[    7.561330] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x00001fff 64bit]
[    7.561470] pci 0000:01:00.0: PME# supported from D0 D3hot
[    7.561484] pci 0000:01:00.0: PME# disabled
[    7.561538] pci 0000:01:00.0: 2.000 Gb/s available PCIe bandwidth, limited by 2.5 GT/s x1 link at 0000:00:01.0 (capable of 4.000 Gb/s with 5 GT/s x1 link)
[    7.583831] pci_bus 0000:01: fixups for bus
[    7.583844] PCI: bus1: Fast back to back transfers disabled
[    7.583856] pci_bus 0000:01: bus scan returning with max=01
[    7.583866] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01
[    7.583879] pci_bus 0000:00: bus scan returning with max=01
[    7.584023] pci 0000:00:01.0: BAR 14: assigned [mem 0xe0000000-0xe00fffff]
[    7.584037] pci 0000:00:01.0: BAR 6: assigned [mem 0xe0100000-0xe01007ff pref]
[    7.584053] pci 0000:01:00.0: BAR 0: assigned [mem 0xe0000000-0xe0001fff 64bit]
[    7.584074] pci 0000:00:01.0: PCI bridge to [bus 01]
[    7.584089] pci 0000:00:01.0:   bridge window [mem 0xe0000000-0xe00fffff]
[    7.584168] pcieport 0000:00:01.0: assign IRQ: got 0
[    7.584183] pcieport 0000:00:01.0: enabling device (0140 -> 0142)
[    7.584205] pcieport 0000:00:01.0: enabling bus mastering
[    7.584239] pci 0000:00:01.0: enabling bus mastering
[    7.584250] pci 0000:01:00.0: enabling device (0140 -> 0142)
[    7.584713] mv_xor f1060800.xor: Marvell shared XOR driver
[    7.643400] mv_xor f1060800.xor: Marvell XOR (Registers Mode): ( xor cpy intr )
[    7.644940] mv_xor f1060900.xor: Marvell shared XOR driver
[    7.703362] mv_xor f1060900.xor: Marvell XOR (Registers Mode): ( xor cpy intr )
[    7.705145] Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled
[    7.706193] printk: console [ttyS0] disabled
[    7.706257] f1012000.serial: ttyS0 at MMIO 0xf1012000 (irq = 26, base_baud = 12500000) is a 16550A
[    8.629873] printk: console [ttyS0] enabled
[    8.640676] loop: module loaded
[    8.644834] sata_mv f1080000.sata: version 1.28
[    8.645061] sata_mv f1080000.sata: slots 32 ports 2
[    8.652835] scsi host0: sata_mv
[    8.657137] scsi host1: sata_mv
[    8.661231] ata1: SATA max UDMA/133 irq 32
[    8.666093] ata2: SATA max UDMA/133 irq 32
[    8.671716] nand: device found, Manufacturer ID: 0x92, Chip ID: 0xf1
[    8.678897] nand: Eon NAND 128MiB 3,3V 8-bit
[    8.683905] nand: 128 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
[    8.692212] Scanning device for bad blocks
[    8.697120] 9 cmdlinepart partitions found on MTD device orion_nand
[    8.704131] Creating 9 MTD partitions on "orion_nand":
[    8.709997] 0x000000000000-0x000000100000 : "uboot"
[    8.716652] 0x000000100000-0x000000180000 : "stock_uboot_env"
[    8.724121] 0x000000180000-0x000000200000 : "key_store"
[    8.731005] 0x000000200000-0x000000280000 : "info"
[    8.737506] 0x000000280000-0x000000c80000 : "etc"
[    8.743923] 0x000000c80000-0x000001680000 : "kernel_1"
[    8.750751] 0x000001680000-0x000004640000 : "rootfs1"
[    8.757629] 0x000004640000-0x000005040000 : "kernel_2"
[    8.764493] 0x000005040000-0x000008000000 : "rootfs2"
[    8.772268] libphy: Fixed MDIO Bus: probed
[    8.777756] libphy: orion_mdio_bus: probed
[    8.793925] mv643xx_eth: MV-643xx 10/100/1000 ethernet driver version 1.4
[    8.801826] mv643xx_eth_port mv643xx_eth_port.0: DMA mask not set
[    8.809444] mv643xx_eth: Set the PHY to fix link down
[    8.809921] mv643xx_eth_port mv643xx_eth_port.0 eth0: port 0 with MAC address 4c:9e:ff:0f:93:7b
[    8.825357] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    8.832635] ehci-pci: EHCI PCI platform driver
[    8.837890] ehci-orion: EHCI orion driver
[    8.842811] orion-ehci f1050000.ehci: EHCI Host Controller
[    8.849035] orion-ehci f1050000.ehci: new USB bus registered, assigned bus number 1
[    8.857572] orion-ehci f1050000.ehci: irq 30, io mem 0xf1050000
[    8.892784] orion-ehci f1050000.ehci: USB 2.0 started, EHCI 1.00
[    8.899754] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.02
[    8.908795] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    8.916780] usb usb1: Product: EHCI Host Controller
[    8.922398] usb usb1: Manufacturer: Linux 5.2.9-kirkwood-tld-1 ehci_hcd
[    8.929767] usb usb1: SerialNumber: f1050000.ehci
[    8.935683] hub 1-0:1.0: USB hub found
[    8.940179] hub 1-0:1.0: 1 port detected
[    8.945440] xhci_hcd 0000:01:00.0: assign IRQ: got 36
[    8.945504] xhci_hcd 0000:01:00.0: enabling bus mastering
[    8.945514] xhci_hcd 0000:01:00.0: xHCI Host Controller
[    8.951512] xhci_hcd 0000:01:00.0: new USB bus registered, assigned bus number 2
[    8.959959] xhci_hcd 0000:01:00.0: hcc params 0x014042cb hci version 0x96 quirks 0x0000000000000004
[    8.969803] xhci_hcd 0000:01:00.0: enabling Mem-Wr-Inval
[    8.970210] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.02
[    8.979247] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    8.987234] usb usb2: Product: xHCI Host Controller
[    8.992867] usb usb2: Manufacturer: Linux 5.2.9-kirkwood-tld-1 xhci-hcd
[    9.000232] usb usb2: SerialNumber: 0000:01:00.0
[    9.006095] hub 2-0:1.0: USB hub found
[    9.010596] hub 2-0:1.0: 2 ports detected
[    9.015804] xhci_hcd 0000:01:00.0: xHCI Host Controller
[    9.021761] xhci_hcd 0000:01:00.0: new USB bus registered, assigned bus number 3
[    9.029949] xhci_hcd 0000:01:00.0: Host supports USB 3.0 SuperSpeed
[    9.037049] usb usb3: We don't know the algorithms for LPM for this host, disabling LPM.
[    9.046021] usb usb3: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.02
[    9.055118] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    9.063084] usb usb3: Product: xHCI Host Controller
[    9.068682] usb usb3: Manufacturer: Linux 5.2.9-kirkwood-tld-1 xhci-hcd
[    9.076040] usb usb3: SerialNumber: 0000:01:00.0
[    9.081803] hub 3-0:1.0: USB hub found
[    9.086345] hub 3-0:1.0: 2 ports detected
[    9.091666] usbcore: registered new interface driver usb-storage
[    9.098726] mousedev: PS/2 mouse device common for all mice
[    9.105304] i2c /dev entries driver
[    9.115849] rtc-pcf8563 0-0051: registered as rtc0
[    9.123182] device-mapper: uevent: version 1.0.3
[    9.128793] device-mapper: ioctl: 4.40.0-ioctl (2019-01-18) initialised: dm-devel@redhat.com
[    9.138317] device-mapper: multipath round-robin: version 1.2.0 loaded
[    9.145628] device-mapper: multipath queue-length: version 0.2.0 loaded
[    9.153001] device-mapper: multipath service-time: version 0.3.0 loaded
[    9.160403] device-mapper: dm-log-userspace: version 1.3.0 loaded
[    9.167352] device-mapper: raid: Loading target version 1.14.0
[    9.173956] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl F300)
[    9.182730] hidraw: raw HID events driver (C) Jiri Kosina
[    9.189149] ata1.00: ATA-9: WDC WD20EFRX-68EUZN0, 82.00A82, max UDMA/133
[    9.197081] drop_monitor: Initializing network drop monitor service
[    9.204123] ata1.00: 3907029168 sectors, multi 0: LBA48 NCQ (depth 31/32)
[    9.212019] NET: Registered protocol family 17
[    9.217561] Key type dns_resolver registered
[    9.222838] ata1.00: configured for UDMA/133
[    9.228514] registered taskstats version 1
[    9.233350] Loading compiled-in X.509 certificates
[    9.239233] scsi 0:0:0:0: Direct-Access     ATA      WDC WD20EFRX-68E 0A82 PQ: 0 ANSI: 5
[    9.248256] zswap: loaded using pool lzo/zbud
[    9.255131] sd 0:0:0:0: [sda] 3907029168 512-byte logical blocks: (2.00 TB/1.82 TiB)
[    9.272896] sd 0:0:0:0: [sda] 4096-byte physical blocks
[    9.280056] sd 0:0:0:0: [sda] Write Protect is off
[    9.292910] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[    9.293059] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[    9.312846] usb 1-1: new high-speed USB device number 2 using orion-ehci
[    9.358396]  sda: sda1
[    9.372315] Key type big_key registered
[    9.377367] sd 0:0:0:0: [sda] Attached SCSI disk
[    9.415906] Key type encrypted registered
[    9.423505] rtc-pcf8563 0-0051: setting system clock to 2021-01-19T21:02:18 UTC (1611090138)
[    9.524202] usb 1-1: New USB device found, idVendor=05e3, idProduct=0608, bcdDevice=85.32
[    9.533168] usb 1-1: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[    9.541069] usb 1-1: Product: USB2.0 Hub
[    9.546444] hub 1-1:1.0: USB hub found
[    9.551217] hub 1-1:1.0: 4 ports detected
[    9.762774] ata2: SATA link up 3.0 Gbps (SStatus 123 SControl F300)
[    9.772207] ata2.00: ATA-9: WDC WD20EFRX-68EUZN0, 82.00A82, max UDMA/133
[    9.779717] ata2.00: 3907029168 sectors, multi 0: LBA48 NCQ (depth 31/32)
[    9.789867] ata2.00: configured for UDMA/133
[    9.805301] scsi 1:0:0:0: Direct-Access     ATA      WDC WD20EFRX-68E 0A82 PQ: 0 ANSI: 5
[    9.815061] sd 1:0:0:0: [sdb] 3907029168 512-byte logical blocks: (2.00 TB/1.82 TiB)
[    9.823860] sd 1:0:0:0: [sdb] 4096-byte physical blocks
[    9.829872] sd 1:0:0:0: [sdb] Write Protect is off
[    9.835420] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[    9.835522] sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[    9.882778] usb 1-1.2: new high-speed USB device number 3 using orion-ehci
[    9.916225]  sdb: sdb1
[    9.920550] sd 1:0:0:0: [sdb] Attached SCSI disk
[    9.929000] Freeing unused kernel memory: 1024K
[    9.943261] Checked W+X mappings: passed, no W+X pages found
[    9.949645] Run /init as init process
[   10.040747] usb 1-1.2: New USB device found, idVendor=058f, idProduct=6387, bcdDevice= 1.06
[   10.062849] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   10.070912] usb 1-1.2: Product: Mass Storage
[   10.082824] usb 1-1.2: Manufacturer: Generic
[   10.088386] usb 1-1.2: SerialNumber: 671EAE92
[   10.120425] usb-storage 1-1.2:1.0: USB Mass Storage device detected
[   10.152914] scsi host2: usb-storage 1-1.2:1.0
[   10.159952] usbcore: registered new interface driver uas
[   11.205037] scsi 2:0:0:0: Direct-Access     Generic  Flash Disk       8.07 PQ: 0 ANSI: 4
[   11.222255] sd 2:0:0:0: [sdc] 7864320 512-byte logical blocks: (4.03 GB/3.75 GiB)
[   11.239997] sd 2:0:0:0: [sdc] Write Protect is off
[   11.245602] sd 2:0:0:0: [sdc] Mode Sense: 23 00 00 00
[   11.246476] sd 2:0:0:0: [sdc] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[   11.282564]  sdc: sdc1
[   11.296124] sd 2:0:0:0: [sdc] Attached SCSI removable disk
[   21.761121] EXT4-fs (sdc1): mounting ext3 file system using the ext4 subsystem
[   21.810180] EXT4-fs (sdc1): mounted filesystem with ordered data mode. Opts: (null)
[   25.046664] random: crng init done
[   25.302228] input: gpio_keys as /devices/platform/gpio_keys/input/input0
[   25.320173] systemd-udevd[396]: Using default interface naming scheme 'v240'.
[   25.426368] systemd-udevd[396]: link_config: autonegotiation is unset or enabled, the speed and duplex are not writable.
[   26.062527] marvell-cesa f1030000.crypto: CESA device successfully registered
[   26.135726] systemd-udevd[378]: link_config: autonegotiation is unset or enabled, the speed and duplex are not writable.
[   26.197153] watchdog: f1020300.watchdog-timer: driver supplied timeout (4294967295) out of range
[   26.216152] sd 0:0:0:0: Attached scsi generic sg0 type 0
[   26.251291] sd 1:0:0:0: Attached scsi generic sg1 type 0
[   26.266853] watchdog: f1020300.watchdog-timer: falling back to default timeout (21)
[   26.308450] sd 2:0:0:0: Attached scsi generic sg2 type 0
[   26.330271] orion_wdt: Initial timeout 21 sec
[   27.728005] EXT4-fs (sdc1): re-mounted. Opts: errors=remount-ro
[   30.550820] mv643xx_eth: Set the PHY back to auto-negotiation mode
[   31.651963] NET: Registered protocol family 10
[   31.665546] Segment Routing with IPv6
[   33.653547] mv643xx_eth_port mv643xx_eth_port.0 eth0: link up, 1000 Mb/s, full duplex, flow control disabled
[   33.664173] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

What's going on?
Last time @bodhi said about power issues; is it possibile that power supply is not working properly?

Thanks for help!

Ivan