NETDEV WATCHDOG: wwan0 (cdc_mbim): transmit queue

I'm using Bananapi BPi-R3 Mini and DW5821e Snapdragon X20 LTE OpenWrt [SNAPSHOT]

root@OpenWrt:~$ dmesg
[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[    0.000000] Linux version 6.6.32 (builder@buildhost) (aarch64-openwrt-linux-musl-gcc (OpenWrt GCC 13.3.0 r26593-b47fbca97f) 13.3.0, GNU ld (GNU Binutils) 2.42) #0 SMP Tue Jun 11 12:27:47 2024
[    0.000000] Machine model: Bananapi BPi-R3 Mini
[    0.000000] OF: reserved mem: 0x0000000042ff0000..0x0000000042ffffff (64 KiB) map non-reusable ramoops@42ff0000
[    0.000000] OF: reserved mem: 0x0000000043000000..0x000000004302ffff (192 KiB) nomap non-reusable secmon@43000000
[    0.000000] OF: reserved mem: 0x000000004fc00000..0x000000004fcfffff (1024 KiB) nomap non-reusable wmcpu-reserved@4fc00000
[    0.000000] OF: reserved mem: 0x000000004fd00000..0x000000004fd3ffff (256 KiB) nomap non-reusable wo-emi@4fd00000
[    0.000000] OF: reserved mem: 0x000000004fd40000..0x000000004fd7ffff (256 KiB) nomap non-reusable wo-emi@4fd40000
[    0.000000] OF: reserved mem: 0x000000004fd80000..0x000000004ffbffff (2304 KiB) nomap non-reusable wo-data@4fd80000
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000040000000-0x00000000bfffffff]
[    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 0x0000000040000000-0x0000000042ffffff]
[    0.000000]   node   0: [mem 0x0000000043000000-0x000000004302ffff]
[    0.000000]   node   0: [mem 0x0000000043030000-0x000000004fbfffff]
[    0.000000]   node   0: [mem 0x000000004fc00000-0x000000004ffbffff]
[    0.000000]   node   0: [mem 0x000000004ffc0000-0x00000000bfffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x00000000bfffffff]
[    0.000000] psci: probing for conduit method from DT.
[    0.000000] psci: PSCIv1.1 detected in firmware.
[    0.000000] psci: Using standard PSCI v0.2 function IDs
[    0.000000] psci: MIGRATE_INFO_TYPE not supported.
[    0.000000] psci: SMC Calling Convention v1.4
[    0.000000] percpu: Embedded 18 pages/cpu s35048 r8192 d30488 u73728
[    0.000000] pcpu-alloc: s35048 r8192 d30488 u73728 alloc=18*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: GIC system register CPU interface
[    0.000000] CPU features: kernel page table isolation disabled by kernel configuration
[    0.000000] alternatives: applying boot alternatives
[    0.000000] Kernel command line: root=ubi.block=0,fit root=/dev/fit0 rootwait
[    0.000000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, linear)
[    0.000000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, linear)
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 516096
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] software IO TLB: SWIOTLB bounce buffer size adjusted to 2MB
[    0.000000] software IO TLB: area num 4.
[    0.000000] software IO TLB: mapped [mem 0x00000000bf67e000-0x00000000bf87e000] (2MB)
[    0.000000] Memory: 2037516K/2097152K available (8768K kernel code, 900K rwdata, 2564K rodata, 384K init, 304K bss, 59636K reserved, 0K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] rcu: Hierarchical RCU implementation.
[    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: 64, nr_irqs: 64, preallocated irqs: 0
[    0.000000] GICv3: GIC: Using split EOI/Deactivate mode
[    0.000000] GICv3: 640 SPIs implemented
[    0.000000] GICv3: 0 Extended SPIs implemented
[    0.000000] Root IRQ handler: gic_handle_irq
[    0.000000] GICv3: GICv3 features: 16 PPIs
[    0.000000] GICv3: CPU0: found redistributor 0 region 0:0x000000000c080000
[    0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention.
[    0.000000] arch_timer: cp15 timer(s) running at 13.00MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x2ff89eacb, max_idle_ns: 440795202429 ns
[    0.000000] sched_clock: 56 bits at 13MHz, resolution 76ns, wraps every 4398046511101ns
[    0.000063] Calibrating delay loop (skipped), value calculated using timer frequency.. 26.00 BogoMIPS (lpj=130000)
[    0.000071] pid_max: default: 32768 minimum: 301
[    0.002074] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear)
[    0.002087] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear)
[    0.003654] cacheinfo: Unable to detect cache hierarchy for CPU 0
[    0.004038] RCU Tasks Trace: Setting shift to 2 and lim to 1 rcu_task_cb_adjust=1.
[    0.004141] rcu: Hierarchical SRCU implementation.
[    0.004143] rcu:     Max phase no-delay instances is 1000.
[    0.004470] smp: Bringing up secondary CPUs ...
[    0.004728] Detected VIPT I-cache on CPU1
[    0.004763] GICv3: CPU1: found redistributor 1 region 0:0x000000000c0a0000
[    0.004792] CPU1: Booted secondary processor 0x0000000001 [0x410fd034]
[    0.005089] Detected VIPT I-cache on CPU2
[    0.005109] GICv3: CPU2: found redistributor 2 region 0:0x000000000c0c0000
[    0.005120] CPU2: Booted secondary processor 0x0000000002 [0x410fd034]
[    0.005382] Detected VIPT I-cache on CPU3
[    0.005400] GICv3: CPU3: found redistributor 3 region 0:0x000000000c0e0000
[    0.005409] CPU3: Booted secondary processor 0x0000000003 [0x410fd034]
[    0.005437] smp: Brought up 1 node, 4 CPUs
[    0.005440] SMP: Total of 4 processors activated.
[    0.005442] CPU features: detected: 32-bit EL0 Support
[    0.005445] CPU features: detected: CRC32 instructions
[    0.005470] CPU features: emulated: Privileged Access Never (PAN) using TTBR0_EL1 switching
[    0.005473] CPU: All CPU(s) started at EL2
[    0.005474] alternatives: applying system-wide alternatives
[    0.008251] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.008266] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
[    0.009140] pinctrl core: initialized pinctrl subsystem
[    0.010017] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[    0.010543] DMA: preallocated 256 KiB GFP_KERNEL pool for atomic allocations
[    0.010571] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
[    0.010594] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
[    0.010904] thermal_sys: Registered thermal governor 'fair_share'
[    0.010906] thermal_sys: Registered thermal governor 'bang_bang'
[    0.010908] thermal_sys: Registered thermal governor 'step_wise'
[    0.010910] thermal_sys: Registered thermal governor 'user_space'
[    0.010967] ASID allocator initialised with 65536 entries
[    0.011723] pstore: Using crash dump compression: deflate
[    0.011727] pstore: Registered ramoops as persistent store backend
[    0.011728] ramoops: using 0x10000@0x42ff0000, ecc: 0
[    0.018414] Modules: 29504 pages in range for non-PLT usage
[    0.018422] Modules: 521024 pages in range for PLT usage
[    0.019237] cryptd: max_cpu_qlen set to 1000
[    0.020126] SCSI subsystem initialized
[    0.020256] libata version 3.00 loaded.
[    0.021366] clocksource: Switched to clocksource arch_sys_counter
[    0.022985] NET: Registered PF_INET protocol family
[    0.023104] IP idents hash table entries: 32768 (order: 6, 262144 bytes, linear)
[    0.024660] tcp_listen_portaddr_hash hash table entries: 1024 (order: 2, 16384 bytes, linear)
[    0.024677] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear)
[    0.024684] TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear)
[    0.024751] TCP bind hash table entries: 16384 (order: 7, 524288 bytes, linear)
[    0.025121] TCP: Hash tables configured (established 16384 bind 16384)
[    0.025215] UDP hash table entries: 1024 (order: 3, 32768 bytes, linear)
[    0.025245] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes, linear)
[    0.025565] NET: Registered PF_UNIX/PF_LOCAL protocol family
[    0.025599] PCI: CLS 0 bytes, default 64
[    0.026506] workingset: timestamp_bits=46 max_order=19 bucket_order=0
[    0.029784] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.029788] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[    0.051319] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
[    0.052883] mtk-pcie-gen3 11280000.pcie: host bridge /soc/pcie@11280000 ranges:
[    0.052903] mtk-pcie-gen3 11280000.pcie: Parsing ranges property...
[    0.052912] mtk-pcie-gen3 11280000.pcie:      MEM 0x0020000000..0x002fffffff -> 0x0020000000
[    0.053031] /soc/pcie@11280000: Failed to get clk index: 0 ret: -517
[    0.053039] mtk-pcie-gen3 11280000.pcie: failed to get clocks
[    0.056059] Serial: 8250/16550 driver, 16 ports, IRQ sharing enabled
[    0.059094] printk: console [ttyS0] disabled
[    0.079411] 11002000.serial: ttyS0 at MMIO 0x11002000 (irq = 116, base_baud = 2500000) is a ST16650V2
[    0.079449] printk: console [ttyS0] enabled
[    0.904294] 11003000.serial: ttyS1 at MMIO 0x11003000 (irq = 117, base_baud = 1625000) is a ST16650V2
[    0.914174] mtk_rng 1020f000.rng: registered RNG driver
[    0.922196] loop: module loaded
[    0.927008] spi-nand spi0.0: Winbond SPI NAND was found.
[    0.932355] spi-nand spi0.0: 128 MiB, block size: 128 KiB, page size: 2048, OOB size: 64
[    0.940758] 2 fixed-partitions partitions found on MTD device spi0.0
[    0.947342] Creating 2 MTD partitions on "spi0.0":
[    0.952200] 0x000000000000-0x000000200000 : "bl2"
[    0.958582] 0x000000200000-0x000008000000 : "ubi"
[    1.044477] ubi0: default fastmap pool size: 50
[    1.049007] ubi0: default fastmap WL pool size: 25
[    1.053791] ubi0: attaching mtd1
[    1.711485] ubi0: scanning is finished
[    1.723303] ubi0: attached mtd1 (name "ubi", size 126 MiB)
[    1.728783] ubi0: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
[    1.735646] ubi0: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
[    1.742415] ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096
[    1.749355] ubi0: good PEBs: 1008, bad PEBs: 0, corrupted PEBs: 0
[    1.755430] ubi0: user volume: 6, internal volumes: 1, max. volumes count: 128
[    1.762632] ubi0: max/mean erase counter: 2/1, WL threshold: 4096, image sequence number: 1717430274
[    1.771741] ubi0: available PEBs: 0, total reserved PEBs: 1008, PEBs reserved for bad PEB handling: 20
[    1.781025] ubi0: background thread "ubi_bgt0d" started, PID 282
[    1.782595] block ubiblock0_4: created from ubi0:4(fit)
[    2.043048] mtk_soc_eth 15100000.ethernet eth0: mediatek frame engine at 0xffffffc081700000, irq 121
[    2.052849] mtk_soc_eth 15100000.ethernet eth1: mediatek frame engine at 0xffffffc081700000, irq 121
[    2.062513] i2c_dev: i2c /dev entries driver
[    2.068724] mtk-wdt 1001c000.watchdog: Watchdog enabled (timeout=31 sec, nowayout=0)
[    2.077279] NET: Registered PF_INET6 protocol family
[    2.082922] Segment Routing with IPv6
[    2.086593] In-situ OAM (IOAM) with IPv6
[    2.090537] NET: Registered PF_PACKET protocol family
[    2.095605] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[    2.108636] 8021q: 802.1Q VLAN Support v1.8
[    2.125903] mtk-pcie-gen3 11280000.pcie: host bridge /soc/pcie@11280000 ranges:
[    2.133235] mtk-pcie-gen3 11280000.pcie: Parsing ranges property...
[    2.139490] mtk-pcie-gen3 11280000.pcie:      MEM 0x0020000000..0x002fffffff -> 0x0020000000
[    2.147969] debugfs: File 'type' in directory 'phy-soc:t-phy.0' already present!
[    2.155361] debugfs: File 'efuse' in directory 'phy-soc:t-phy.0' already present!
[    2.160535] mtk-msdc 11230000.mmc: Final PAD_DS_TUNE: 0x14014
[    2.162835] debugfs: File 'intr' in directory 'phy-soc:t-phy.0' already present!
[    2.169729] mmc0: new HS400 MMC card at address 0001
[    2.175924] debugfs: File 'tx-imp' in directory 'phy-soc:t-phy.0' already present!
[    2.175927] debugfs: File 'rx-imp' in directory 'phy-soc:t-phy.0' already present!
[    2.181797] mmcblk0: mmc0:0001 008GB0 7.28 GiB
[    2.202532] GPT:Primary header thinks Alt. header is not at the end of the disk.
[    2.209918] GPT:1 != 15269887
[    2.212886] GPT:Alternate GPT header not at the end of the disk.
[    2.218870] GPT:1 != 15269887
[    2.221827] GPT: Use GNU Parted to correct GPT errors.
[    2.226964]  mmcblk0: p1 p2 p3 p4 p5 p6
[    2.231989] mmcblk0boot0: mmc0:0001 008GB0 4.00 MiB
[    2.237681] mmcblk0boot1: mmc0:0001 008GB0 4.00 MiB
[    2.242794] mmcblk0rpmb: mmc0:0001 008GB0 4.00 MiB, chardev (249:0)
[    2.521388] mtk-pcie-gen3 11280000.pcie: PCIe link down, current LTSSM state: detect.quiet (0x1)
[    2.530179] mtk-pcie-gen3: probe of 11280000.pcie failed with error -110
[    2.537998] FIT: Detected U-Boot 2024.01-OpenWrt-r26513-65f34e9928
[    2.544178] FIT: Selected configuration: "config-mt7986a-bananapi-bpi-r3-mini" (OpenWrt bananapi_bpi-r3-mini)
[    2.554077] FIT:           kernel sub-image 0x00001000..0x0058c04d "kernel-1" (ARM64 OpenWrt Linux-6.6.32)
[    2.563803] FIT:          flat_dt sub-image 0x0058d000..0x00594375 "fdt-1" (ARM64 OpenWrt bananapi_bpi-r3-mini device tree blob)
[    2.575434] FIT:       filesystem sub-image 0x00595000..0x010f0fff "rootfs-1" (ARM64 OpenWrt bananapi_bpi-r3-mini rootfs)
[    2.586798] block ubiblock0_4: mapped 1 uImage.FIT filesystem sub-image as /dev/fit0
[    2.594983] UBI: auto-attach mtd1
[    2.598285] ubi: mtd1 is already attached to ubi0
[    2.602983] UBI error: cannot attach mtd1
[    2.607048] clk: Disabling unused clocks
[    2.615887] VFS: Mounted root (squashfs filesystem) readonly on device 259:0.
[    2.623152] Freeing unused kernel memory: 384K
[    2.627628] Run /sbin/init as init process
[    2.631719]   with arguments:
[    2.634670]     /sbin/init
[    2.637362]   with environment:
[    2.640487]     HOME=/
[    2.642850]     TERM=linux
[    2.826915] init: Console is alive
[    2.830417] init: - watchdog -
[    3.221385] random: crng init done
[    3.251722] kmodloader: loading kernel modules from /etc/modules-boot.d/*
[    5.483031] Airoha EN8811H mdio-bus:0e: MD32 firmware version: 24030702
[    7.685288] Airoha EN8811H mdio-bus:0f: MD32 firmware version: 24030702
[    7.700867] usbcore: registered new interface driver usbfs
[    7.706404] usbcore: registered new interface driver hub
[    7.711735] usbcore: registered new device driver usb
[    7.717327] gpio_button_hotplug: loading out-of-tree module taints kernel.
[    7.729278] xhci-mtk 11200000.usb: xHCI Host Controller
[    7.734585] xhci-mtk 11200000.usb: new USB bus registered, assigned bus number 1
[    7.745037] xhci-mtk 11200000.usb: hcc params 0x01403f99 hci version 0x110 quirks 0x0000000000200010
[    7.754190] xhci-mtk 11200000.usb: irq 127, io mem 0x11200000
[    7.760001] xhci-mtk 11200000.usb: xHCI Host Controller
[    7.765217] xhci-mtk 11200000.usb: new USB bus registered, assigned bus number 2
[    7.772604] xhci-mtk 11200000.usb: Host supports USB 3.2 Enhanced SuperSpeed
[    7.779972] hub 1-0:1.0: USB hub found
[    7.783736] hub 1-0:1.0: 2 ports detected
[    7.788006] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[    7.796363] hub 2-0:1.0: USB hub found
[    7.800118] hub 2-0:1.0: 1 port detected
[    7.808491] usbcore: registered new interface driver usb-storage
[    7.814829] kmodloader: done loading kernel modules from /etc/modules-boot.d/*
[    7.826486] init: - preinit -
[    8.153908] mtk_soc_eth 15100000.ethernet eth0: PHY [mdio-bus:0e] driver [Airoha EN8811H] (irq=63)
[    8.165405] mtk_soc_eth 15100000.ethernet eth0: configuring for phy/2500base-x link mode
[    8.174512] mtk_soc_eth 15100000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[   10.272042] mount_root: loading kmods from internal overlay
[   10.275195] usb 2-1: new SuperSpeed USB device number 2 using xhci-mtk
[   10.288742] kmodloader: loading kernel modules from //etc/modules-boot.d/*
[   10.296307] kmodloader: done loading kernel modules from //etc/modules-boot.d/*
[   10.862962] block: attempting to load /tmp/overlay/upper/etc/config/fstab
[   10.869804] block: unable to load configuration (fstab: Entry not found)
[   10.876647] block: attempting to load /tmp/overlay/etc/config/fstab
[   10.883024] block: unable to load configuration (fstab: Entry not found)
[   10.889732] block: attempting to load /etc/config/fstab
[   10.898594] block: unable to load configuration (fstab: Entry not found)
[   10.905338] block: no usable configuration
[   10.912349] UBIFS (ubi0:5): Mounting in unauthenticated mode
[   10.918070] UBIFS (ubi0:5): background thread "ubifs_bgt0_5" started, PID 831
[   10.958904] UBIFS (ubi0:5): recovery needed
[   11.069850] UBIFS (ubi0:5): recovery completed
[   11.074358] UBIFS (ubi0:5): UBIFS: mounted UBI device 0, volume 5, name "rootfs_data"
[   11.082173] UBIFS (ubi0:5): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
[   11.092066] UBIFS (ubi0:5): FS size: 101707776 bytes (96 MiB, 801 LEBs), max 812 LEBs, journal size 5079040 bytes (4 MiB, 40 LEBs)
[   11.103779] UBIFS (ubi0:5): reserved for root: 4803908 bytes (4691 KiB)
[   11.110374] UBIFS (ubi0:5): media format: w5/r0 (latest is w5/r0), UUID B3E281EF-2945-47D0-8DBA-B7E93A454A14, small LPT model
[   11.123185] block: attempting to load /tmp/ubifs_cfg/upper/etc/config/fstab
[   11.136524] block: extroot: not configured
[   11.140703] UBIFS (ubi0:5): un-mount UBI device 0
[   11.145411] UBIFS (ubi0:5): background thread "ubifs_bgt0_5" stops
[   11.154826] UBIFS (ubi0:5): Mounting in unauthenticated mode
[   11.160543] UBIFS (ubi0:5): background thread "ubifs_bgt0_5" started, PID 834
[   11.247828] UBIFS (ubi0:5): UBIFS: mounted UBI device 0, volume 5, name "rootfs_data"
[   11.255659] UBIFS (ubi0:5): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
[   11.265551] UBIFS (ubi0:5): FS size: 101707776 bytes (96 MiB, 801 LEBs), max 812 LEBs, journal size 5079040 bytes (4 MiB, 40 LEBs)
[   11.277264] UBIFS (ubi0:5): reserved for root: 4803908 bytes (4691 KiB)
[   11.283861] UBIFS (ubi0:5): media format: w5/r0 (latest is w5/r0), UUID B3E281EF-2945-47D0-8DBA-B7E93A454A14, small LPT model
[   11.494321] block: attempting to load /tmp/overlay/upper/etc/config/fstab
[   11.506672] block: extroot: not configured
[   11.512585] block: attempting to load /tmp/ubifs_cfg/upper/etc/config/fstab
[   11.519685] block: extroot: not configured
[   11.526065] mount_root: switching to ubifs overlay
[   11.539281] overlayfs: null uuid detected in lower fs '/', falling back to xino=off,index=off,nfs_export=off.
[   11.554330] urandom-seed: Seeding with /etc/urandom.seed
[   11.583105] procd: - early -
[   11.586037] procd: - watchdog -
[   12.134162] procd: - watchdog -
[   12.137554] procd: - ubus -
[   12.229044] procd: - init -
[   12.552038] kmodloader: loading kernel modules from /etc/modules.d/*
[   12.579207] crypto-safexcel 10320000.crypto: EIP97:230(0,1,4,4)-HIA:270(0,5,5),PE:150/433(alg:7fcdfc00)/0/0/0
[   12.596177] usbcore: registered new interface driver cdc_wdm
[   12.602373] Loading modules backported from Linux version v6.6.15-0-g51f354b815c4
[   12.609849] Backport generated by backports.git 193becf2
[   12.621531] usbcore: registered new interface driver usbserial_generic
[   12.628143] usbserial: USB Serial support registered for generic
[   12.634974] usbcore: registered new interface driver cdc_ether
[   12.641870] usbcore: registered new interface driver cdc_ncm
[   12.705767] urngd: v1.0.2 started.
[   12.975251] mt798x-wmac 18000000.wifi: HW/SW Version: 0x8a108a10, Build Time: 20221012174648a
[   12.975251]
[   13.158605] mt798x-wmac 18000000.wifi: WM Firmware Version: ____000000, Build Time: 20221012174725
[   13.256298] mt798x-wmac 18000000.wifi: WA Firmware Version: DEV_000000, Build Time: 20221012174937
[   13.361390] mt798x-wmac 18000000.wifi: registering led 'mt76-phy0'
[   13.369016] mt798x-wmac 18000000.wifi: registering led 'mt76-phy1'
[   16.191022] mtk_soc_eth 15100000.ethernet eth0: Link is Down
[   16.215669] PPP generic driver version 2.4.2
[   16.220693] NET: Registered PF_PPPOX protocol family
[   16.226794] usbcore: registered new interface driver qmi_wwan
[   16.254821] cdc_mbim 2-1:2.0: cdc-wdm0: USB WDM device
[   16.260413] cdc_mbim 2-1:2.0 wwan0: register 'cdc_mbim' at usb-11200000.usb-1, CDC MBIM, ba:b8:5a:81:bc:77
[   16.270228] usbcore: registered new interface driver cdc_mbim
[   16.277670] usbcore: registered new interface driver option
[   16.283297] usbserial: USB Serial support registered for GSM modem (1-port)
[   16.290385] option 2-1:2.2: GSM modem (1-port) converter detected
[   16.296665] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB0
[   16.303623] option 2-1:2.3: GSM modem (1-port) converter detected
[   16.309881] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB1
[   16.316852] option 2-1:2.4: GSM modem (1-port) converter detected
[   16.323144] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB2
[   16.330091] option 2-1:2.5: GSM modem (1-port) converter detected
[   16.336352] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB3
[   16.345222] usbcore: registered new interface driver qcserial
[   16.351024] usbserial: USB Serial support registered for Qualcomm USB modem
[   16.358204] kmodloader: done loading kernel modules from /etc/modules.d/*
[   18.377314] mtk_soc_eth 15100000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[   19.502769] mtk_soc_eth 15100000.ethernet eth0: Link is Down
[   19.625033] mtk_soc_eth 15100000.ethernet eth0: PHY [mdio-bus:0e] driver [Airoha EN8811H] (irq=63)
[   19.636880] mtk_soc_eth 15100000.ethernet eth0: configuring for phy/2500base-x link mode
[   19.645936] br-lan: port 1(eth0) entered blocking state
[   19.651176] br-lan: port 1(eth0) entered disabled state
[   19.656516] mtk_soc_eth 15100000.ethernet eth0: entered allmulticast mode
[   19.663602] mtk_soc_eth 15100000.ethernet eth0: entered promiscuous mode
[   19.713931] mtk_soc_eth 15100000.ethernet eth1: PHY [mdio-bus:0f] driver [Airoha EN8811H] (irq=61)
[   19.723720] mtk_soc_eth 15100000.ethernet eth1: configuring for phy/2500base-x link mode
[   20.250204] br-lan: port 2(phy0-ap0) entered blocking state
[   20.255798] br-lan: port 2(phy0-ap0) entered disabled state
[   20.261430] mt798x-wmac 18000000.wifi phy0-ap0: entered allmulticast mode
[   20.268420] mt798x-wmac 18000000.wifi phy0-ap0: entered promiscuous mode
[   20.275339] br-lan: port 2(phy0-ap0) entered blocking state
[   20.280911] br-lan: port 2(phy0-ap0) entered forwarding state
[   20.460276] br-lan: port 3(phy1-ap0) entered blocking state
[   20.465943] br-lan: port 3(phy1-ap0) entered disabled state
[   20.471609] mt798x-wmac 18000000.wifi phy1-ap0: entered allmulticast mode
[   20.478629] mt798x-wmac 18000000.wifi phy1-ap0: entered promiscuous mode
[   20.485595] br-lan: port 3(phy1-ap0) entered blocking state
[   20.491165] br-lan: port 3(phy1-ap0) entered forwarding state
[   20.531512] br-lan: port 2(phy0-ap0) entered disabled state
[   20.537634] br-lan: port 3(phy1-ap0) entered disabled state
[   21.591444] usb 2-1: USB disconnect, device number 2
[   21.596606] cdc_mbim 2-1:2.0 wwan0: unregister 'cdc_mbim' usb-11200000.usb-1, CDC MBIM
[   21.642472] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[   21.650602] option 2-1:2.2: device disconnected
[   21.655618] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[   21.663812] option 2-1:2.3: device disconnected
[   21.668786] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[   21.676957] option 2-1:2.4: device disconnected
[   21.681881] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[   21.690086] option 2-1:2.5: device disconnected
[   22.225165] usb 2-1: new SuperSpeed USB device number 3 using xhci-mtk
[   22.301966] cdc_mbim 2-1:2.0: cdc-wdm0: USB WDM device
[   22.307681] cdc_mbim 2-1:2.0 wwan0: register 'cdc_mbim' at usb-11200000.usb-1, CDC MBIM, ba:b8:5a:81:bc:77
[   22.318128] option 2-1:2.2: GSM modem (1-port) converter detected
[   22.324697] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB0
[   22.331891] option 2-1:2.3: GSM modem (1-port) converter detected
[   22.338262] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB1
[   22.582826] mtk_soc_eth 15100000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[   22.591998] br-lan: port 1(eth0) entered blocking state
[   22.597225] br-lan: port 1(eth0) entered forwarding state
[   24.346325] 8021q: adding VLAN 0 to HW filter on device wwan0
[   25.562932] br-lan: port 3(phy1-ap0) entered blocking state
[   25.568509] br-lan: port 3(phy1-ap0) entered forwarding state
[   29.553909] br-lan: port 2(phy0-ap0) entered blocking state
[   29.559492] br-lan: port 2(phy0-ap0) entered forwarding state
[   36.311360] ------------[ cut here ]------------
[   36.315977] NETDEV WATCHDOG: wwan0 (cdc_mbim): transmit queue 0 timed out 5070 ms
[   36.323472] WARNING: CPU: 1 PID: 0 at dev_watchdog+0x240/0x248
[   36.329298] Modules linked in: qcserial pppoe ppp_async option nft_fib_inet nf_flow_table_inet cdc_mbim usb_wwan qmi_wwan pppox ppp_generic nft_reject_ipv6 nft_reject_ipv4 nft_reject_inet nft_reject nft_redir nft_quota nft_numgen nft_nat nft_masq nft_log nft_limit nft_hash nft_flow_offload nft_fib_ipv6 nft_fib_ipv4 nft_fib nft_ct nft_chain_nat nf_tables nf_nat nf_flow_table nf_conntrack mt7915e(O) mt76_connac_lib(O) mt76(O) mac80211(O) cfg80211(O) cdc_ncm cdc_ether usbserial usbnet slhc nfnetlink nf_reject_ipv6 nf_reject_ipv4 nf_log_syslog nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c compat(O) cdc_wdm crypto_safexcel pwm_fan sha512_arm64 sha1_ce sha1_generic seqiv md5 geniv des_generic libdes authencesn authenc usb_storage leds_gpio xhci_plat_hcd xhci_pci xhci_mtk_hcd xhci_hcd gpio_button_hotplug(O) usbcore usb_common aquantia air_en8811h mii
[   36.403462] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G           O       6.6.32 #0
[   36.410836] Hardware name: Bananapi BPi-R3 Mini (DT)
[   36.415782] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   36.422722] pc : dev_watchdog+0x240/0x248
[   36.426717] lr : dev_watchdog+0x240/0x248
[   36.430712] sp : ffffffc08000be50
[   36.434010] x29: ffffffc08000be50 x28: ffffffc080b805f8 x27: ffffffc080b950c0
[   36.441126] x26: ffffffc080b969c0 x25: ffffffc08000bf10 x24: 00000000000013ce
[   36.448242] x23: ffffffc080b96000 x22: 0000000000000000 x21: ffffff8000d8b000
[   36.455358] x20: ffffff80067c3000 x19: ffffff8000d8b4c0 x18: 0000000000000165
[   36.462473] x17: 30352074756f2064 x16: 656d697420302065 x15: ffffffc080baa1e8
[   36.469589] x14: 000000000000042f x13: 0000000000000165 x12: 00000000ffffffea
[   36.476704] x11: 00000000ffffefff x10: ffffffc080c021e8 x9 : ffffffc080baa190
[   36.483820] x8 : 0000000000017fe8 x7 : c0000000ffffefff x6 : 0000000000000001
[   36.490935] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000
[   36.498051] x2 : ffffff807fb95490 x1 : ffffffbfff012000 x0 : 0000000000000045
[   36.505167] Call trace:
[   36.507599]  dev_watchdog+0x240/0x248
[   36.511247]  call_timer_fn.isra.0+0x20/0x78
[   36.515417]  __run_timers.part.0+0x1e4/0x248
[   36.519671]  run_timer_softirq+0x38/0x6c
[   36.523579]  __do_softirq+0xf8/0x25c
[   36.527139]  ____do_softirq+0xc/0x14
[   36.530699]  call_on_irq_stack+0x24/0x34
[   36.534607]  do_softirq_own_stack+0x18/0x24
[   36.538773]  irq_exit_rcu+0xb4/0xcc
[   36.542247]  el1_interrupt+0x34/0x4c
[   36.545809]  el1h_64_irq_handler+0x14/0x1c
[   36.549890]  el1h_64_irq+0x68/0x6c
[   36.553276]  default_idle_call+0x24/0x34
[   36.557183]  do_idle+0xa8/0xf4
[   36.560227]  cpu_startup_entry+0x34/0x38
[   36.564134]  cpu_die_early+0x0/0x84
[   36.567608]  __secondary_switched+0x6c/0x70
[   36.571776] ---[ end trace 0000000000000000 ]---

This error occurs constantly, no matter what mode the modem is in (qmi or mbim).
On the native firmware from the manufacturer (Openwrt 21.02) this error does not exist and it has never appeared!
The Internet disappears and does not appear. You either have to reboot the router many times until it works, or

rmmod cdc_mbim
modprobe cdc_mbim
ifdown 4G
ifup 4G

then the Internet appears!
There are no errors with the em7565 modem either.
Tell me how to overcome this error? I no longer have the strength to fight her!