ok I posted a detailed output above your comment at the same time.
Also my dsmesg shows:
root@OpenWrt:~# dmesg
[ 0.000000] Linux version 5.10.146 (builder@buildhost) (mipsel-openwrt-linux-musl-gcc (OpenWrt GCC 11.2.0 r19803-9a599fee93) 11.2.0, GNU ld (GNU Binutils) 2.37) #0 Fri Oct 14 22:44:41 2022
[ 0.000000] Board has DDR2
[ 0.000000] Analog PMU set to hw control
[ 0.000000] Digital PMU set to hw control
[ 0.000000] SoC Type: MediaTek MT7628AN ver:1 eco:2
[ 0.000000] printk: bootconsole [early0] enabled
[ 0.000000] CPU0 revision is: 00019655 (MIPS 24KEc)
[ 0.000000] MIPS: machine is TP-Link TL-MR6400 v4
[ 0.000000] Initrd not found or empty - disabling initrd
[ 0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
[ 0.000000] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
[ 0.000000] Zone ranges:
[ 0.000000] Normal [mem 0x0000000000000000-0x0000000003ffffff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000000000000-0x0000000003ffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000003ffffff]
[ 0.000000] On node 0 totalpages: 16384
[ 0.000000] Normal zone: 144 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 16384 pages, LIFO batch:3
[ 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: 16240
[ 0.000000] Kernel command line: console=ttyS0,115200 rootfstype=squashfs,jffs2
[ 0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes, linear)
[ 0.000000] Writing ErrCtl register=0000cba3
[ 0.000000] Readback ErrCtl register=0000cba3
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] Memory: 56416K/65536K available (5669K kernel code, 616K rwdata, 692K rodata, 1204K init, 209K bss, 9120K reserved, 0K cma-reserved)
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] NR_IRQS: 256
[ 0.000000] intc: using register map from devicetree
[ 0.000000] CPU Clock: 580MHz
[ 0.000000] timer_probe: no matching timers found
[ 0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 6590553264 ns
[ 0.000010] sched_clock: 32 bits at 290MHz, resolution 3ns, wraps every 7405115902ns
[ 0.007644] Calibrating delay loop... 385.84 BogoMIPS (lpj=1929216)
[ 0.073572] pid_max: default: 32768 minimum: 301
[ 0.078207] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.085226] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.095102] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build
[ 0.106455] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.115976] futex hash table entries: 256 (order: -1, 3072 bytes, linear)
[ 0.122620] pinctrl core: initialized pinctrl subsystem
[ 0.132659] NET: Registered protocol family 16
[ 0.137792] thermal_sys: Registered thermal governor 'step_wise'
[ 0.200236] clocksource: Switched to clocksource MIPS
[ 0.212326] NET: Registered protocol family 2
[ 0.216782] IP idents hash table entries: 2048 (order: 2, 16384 bytes, linear)
[ 0.224723] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear)
[ 0.232890] TCP established hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.240271] TCP bind hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.247050] TCP: Hash tables configured (established 1024 bind 1024)
[ 0.253353] UDP hash table entries: 256 (order: 0, 4096 bytes, linear)
[ 0.259637] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes, linear)
[ 0.266749] NET: Registered protocol family 1
[ 0.270989] PCI: CLS 0 bytes, default 32
[ 0.282329] workingset: timestamp_bits=14 max_order=14 bucket_order=0
[ 0.293865] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.299446] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[ 0.311273] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
[ 0.320971] mt7621_gpio 10000600.gpio: registering 32 gpios
[ 0.326556] mt7621_gpio 10000600.gpio: registering 32 gpios
[ 0.332261] mt7621_gpio 10000600.gpio: registering 32 gpios
[ 0.337894] Serial: 8250/16550 driver, 16 ports, IRQ sharing enabled
[ 0.346776] printk: console [ttyS0] disabled
[ 0.351015] 10000c00.uartlite: ttyS0 at MMIO 0x10000c00 (irq = 28, base_baud = 2500000) is a 16550A
[ 0.359729] printk: console [ttyS0] enabled
[ 0.368162] printk: bootconsole [early0] disabled
[ 0.379139] spi-mt7621 10000b00.spi: sys_freq: 193333333
[ 0.404009] spi-nor spi0.0: s25fl064k (8192 Kbytes)
[ 0.409027] 4 fixed-partitions partitions found on MTD device spi0.0
[ 0.415601] OF: Bad cell count for /palmbus@10000000/spi@b00/flash@0/partitions
[ 0.423054] OF: Bad cell count for /palmbus@10000000/spi@b00/flash@0/partitions
[ 0.430881] OF: Bad cell count for /palmbus@10000000/spi@b00/flash@0/partitions
[ 0.438316] OF: Bad cell count for /palmbus@10000000/spi@b00/flash@0/partitions
[ 0.446396] Creating 4 MTD partitions on "spi0.0":
[ 0.451332] 0x000000000000-0x000000020000 : "boot"
[ 0.460123] 0x000000020000-0x0000007c0000 : "firmware"
[ 0.467173] 2 tplink-fw partitions found on MTD device firmware
[ 0.473285] Creating 2 MTD partitions on "firmware":
[ 0.478327] 0x000000000000-0x0000002184f5 : "kernel"
[ 0.483371] mtd: partition "kernel" doesn't end on an erase/write block -- force read-only
[ 0.494802] 0x0000002184f8-0x0000007a0000 : "rootfs"
[ 0.499857] mtd: partition "rootfs" doesn't start on an erase/write block boundary -- force read-only
[ 0.510439] mtd: device 3 (rootfs) set to be root filesystem
[ 0.517336] 1 squashfs-split partitions found on MTD device rootfs
[ 0.523704] 0x0000005c0000-0x0000007a0000 : "rootfs_data"
[ 0.530525] 0x0000007c0000-0x0000007d0000 : "config"
[ 0.538523] 0x0000007d0000-0x000000800000 : "factory"
[ 0.598702] rt3050-esw 10110000.esw: mediatek esw at 0xb0110000, irq 25 initialized
[ 0.607383] mtk_soc_eth 10100000.ethernet eth0: mediatek frame engine at 0xb0100000, irq 5
[ 0.617699] NET: Registered protocol family 10
[ 0.627983] Segment Routing with IPv6
[ 0.631924] NET: Registered protocol family 17
[ 0.636526] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[ 0.649704] 8021q: 802.1Q VLAN Support v1.8
[ 0.671292] VFS: Mounted root (squashfs filesystem) readonly on device 31:3.
[ 0.685249] Freeing unused kernel memory: 1204K
[ 0.689844] This architecture does not have kernel memory protection.
[ 0.696414] Run /sbin/init as init process
[ 0.700590] with arguments:
[ 0.700596] /sbin/init
[ 0.700600] with environment:
[ 0.700606] HOME=/
[ 0.700610] TERM=linux
[ 1.730784] init: Console is alive
[ 1.734843] init: - watchdog -
[ 3.428598] kmodloader: loading kernel modules from /etc/modules-boot.d/*
[ 3.606587] usbcore: registered new interface driver usbfs
[ 3.612341] usbcore: registered new interface driver hub
[ 3.617825] usbcore: registered new device driver usb
[ 3.631715] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 3.641659] ehci-fsl: Freescale EHCI Host controller driver
[ 3.649270] ehci-platform: EHCI generic platform driver
[ 3.665105] phy phy-10120000.usbphy.0: remote usb device wakeup disabled
[ 3.671921] phy phy-10120000.usbphy.0: UTMI 16bit 30MHz
[ 3.677218] ehci-platform 101c0000.ehci: EHCI Host Controller
[ 3.683083] ehci-platform 101c0000.ehci: new USB bus registered, assigned bus number 1
[ 3.691272] ehci-platform 101c0000.ehci: irq 26, io mem 0x101c0000
[ 3.720260] ehci-platform 101c0000.ehci: USB 2.0 started, EHCI 1.00
[ 3.727697] hub 1-0:1.0: USB hub found
[ 3.732547] hub 1-0:1.0: 1 port detected
[ 3.744857] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 3.752914] ohci-platform: OHCI generic platform driver
[ 3.758621] ohci-platform 101c1000.ohci: Generic Platform OHCI controller
[ 3.765623] ohci-platform 101c1000.ohci: new USB bus registered, assigned bus number 2
[ 3.773815] ohci-platform 101c1000.ohci: irq 26, io mem 0x101c1000
[ 3.845312] hub 2-0:1.0: USB hub found
[ 3.850031] hub 2-0:1.0: 1 port detected
[ 3.864152] kmodloader: done loading kernel modules from /etc/modules-boot.d/*
[ 3.882200] init: - preinit -
[ 4.789359] rt3050-esw 10110000.esw: port 1 link up
[ 5.370350] usb 1-1: new high-speed USB device number 2 using ehci-platform
[ 5.598473] random: procd: uninitialized urandom read (4 bytes read)
[ 5.767889] random: jshn: uninitialized urandom read (4 bytes read)
[ 5.885462] random: jshn: uninitialized urandom read (4 bytes read)
[ 6.788640] rt3050-esw 10110000.esw: port 1 link down
[ 11.145255] rt3050-esw 10110000.esw: port 1 link up
[ 11.150490] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 11.157446] IPv6: ADDRCONF(NETDEV_CHANGE): eth0.1: link becomes ready
[ 11.535410] jffs2: notice: (430) jffs2_build_xattr_subsystem: complete building xattr subsystem, 175 of xdatum (108 unchecked, 6 orphan) and 189 of xref (8 dead, 0 orphan) found.
[ 11.556795] mount_root: switching to jffs2 overlay
[ 11.575766] overlayfs: upper fs does not support tmpfile.
[ 11.591483] urandom-seed: Seeding with /etc/urandom.seed
[ 11.828483] procd: - early -
[ 11.831986] procd: - watchdog -
[ 12.769859] procd: - watchdog -
[ 12.777636] procd: - ubus -
[ 13.195708] random: ubusd: uninitialized urandom read (4 bytes read)
[ 13.215961] random: ubusd: uninitialized urandom read (4 bytes read)
[ 13.233415] random: ubusd: uninitialized urandom read (4 bytes read)
[ 13.252724] procd: - init -
[ 14.324020] random: ubusd: uninitialized urandom read (4 bytes read)
[ 14.331765] random: ubus: uninitialized urandom read (4 bytes read)
[ 14.509455] random: jsonfilter: uninitialized urandom read (4 bytes read)
[ 15.352378] random: jshn: uninitialized urandom read (4 bytes read)
[ 15.766524] kmodloader: loading kernel modules from /etc/modules.d/*
[ 16.684636] urngd: v1.0.2 started.
[ 16.729497] usbcore: registered new interface driver cdc_wdm
[ 16.751190] Loading modules backported from Linux version v5.15.58-0-g7d8048d4e064
[ 16.758887] Backport generated by backports.git v5.15.58-1-0-g42a95ce7
[ 16.833525] usbcore: registered new interface driver usbserial_generic
[ 16.840321] usbserial: USB Serial support registered for generic
[ 17.113802] mt76_wmac 10300000.wmac: ASIC revision: 76280001
[ 17.247031] random: crng init done
[ 17.250560] random: 46 urandom warning(s) missed due to ratelimiting
[ 18.153567] mt76_wmac 10300000.wmac: Firmware Version: 20151201
[ 18.159596] mt76_wmac 10300000.wmac: Build Time: 20151201183641
[ 18.180241] mt76_wmac 10300000.wmac: firmware init done
[ 18.349049] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
[ 18.628194] PPP generic driver version 2.4.2
[ 18.637847] NET: Registered protocol family 24
[ 18.647310] qmi_wwan 1-1:1.4: cdc-wdm0: USB WDM device
[ 18.661389] qmi_wwan 1-1:1.4 wwan0: register 'qmi_wwan' at usb-101c0000.ehci-1, WWAN/QMI device, 2e:07:2a:d1:eb:9c
[ 18.672278] usbcore: registered new interface driver qmi_wwan
[ 18.714733] usbcore: registered new interface driver option
[ 18.720588] usbserial: USB Serial support registered for GSM modem (1-port)
[ 18.756555] kmodloader: done loading kernel modules from /etc/modules.d/*
[ 32.748642] rt3050-esw 10110000.esw: port 1 link down
[ 36.889201] rt3050-esw 10110000.esw: port 1 link up
[ 42.858618] br-lan: port 1(eth0.1) entered blocking state
[ 42.864366] br-lan: port 1(eth0.1) entered disabled state
[ 42.870303] device eth0.1 entered promiscuous mode
[ 42.875174] device eth0 entered promiscuous mode
[ 42.907028] br-lan: port 1(eth0.1) entered blocking state
[ 42.912594] br-lan: port 1(eth0.1) entered forwarding state
[ 43.860907] IPv6: ADDRCONF(NETDEV_CHANGE): br-lan: link becomes ready
[ 51.497823] wlan0: authenticate with 2c:91:ab:4c:8c:86
[ 51.511150] wlan0: send auth to 2c:91:ab:4c:8c:86 (try 1/3)
[ 52.111097] wlan0: authenticate with 2c:91:ab:4c:8c:86
[ 52.116368] wlan0: send auth to 2c:91:ab:4c:8c:86 (try 1/3)
[ 52.126995] wlan0: authenticated
[ 52.140328] wlan0: associate with 2c:91:ab:4c:8c:86 (try 1/3)
[ 52.162123] wlan0: RX AssocResp from 2c:91:ab:4c:8c:86 (capab=0x1431 status=0 aid=10)
[ 52.170386] wlan0: associated
[ 52.190845] wlan0: Limiting TX power to 20 (20 - 0) dBm as advertised by 2c:91:ab:4c:8c:86
[ 53.087410] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 69.429248] do_page_fault(): sending SIGSEGV to uqmi for invalid write access to 00000000
[ 69.437629] epc = 77d82ef4 in libc.so[77d5e000+a9000]
[ 69.442827] ra = 004036c9 in uqmi[400000+14000]
[ 72.532711] do_page_fault(): sending SIGSEGV to uqmi for invalid write access to 00000000
[ 72.541076] epc = 77e16ef4 in libc.so[77df2000+a9000]
[ 72.546237] ra = 004036c9 in uqmi[400000+14000]
[ 75.636879] do_page_fault(): sending SIGSEGV to uqmi for invalid write access to 00000000
[ 75.645267] epc = 77e34ef4 in libc.so[77e10000+a9000]
[ 75.650435] ra = 004036c9 in uqmi[400000+14000]
[ 78.772462] do_page_fault(): sending SIGSEGV to uqmi for invalid write access to 00000000
[ 78.780823] epc = 77d87ef4 in libc.so[77d63000+a9000]
[ 78.785983] ra = 004036c9 in uqmi[400000+14000]
[ 84.885213] do_page_fault(): sending SIGSEGV to uqmi for invalid write access to 00000000
[ 84.893598] epc = 77db0ef4 in libc.so[77d8c000+a9000]
[ 84.898761] ra = 004036c9 in uqmi[400000+14000]
[ 90.996737] do_page_fault(): sending SIGSEGV to uqmi for invalid write access to 00000000
[ 91.005115] epc = 77e5cef4 in libc.so[77e38000+a9000]
[ 91.010277] ra = 004036c9 in uqmi[400000+14000]
root@OpenWrt:~#