OpenWrt 18.06.2 caused havoc with 5GHz on my Archer C7 v2

Hardware Questions and Recommendations
21

I tried to install 19.07 with ath79 and this is the dmesg.

root@OpenWrt:~# dmesg
[    0.000000] Linux version 4.14.123 (minty@fresh) (gcc version 7.4.0 (OpenWrt GCC 7.4.0 r9015-34696ce)) #0 Sun Jun 9 12:51:47 2019
[    0.000000] bootconsole [early0] enabled
[    0.000000] CPU0 revision is: 00019750 (MIPS 74Kc)
[    0.000000] MIPS: machine is TP-Link Archer C7 v2
[    0.000000] SoC: Qualcomm Atheros QCA9558 ver 1 rev 0
[    0.000000] Determined physical RAM map:
[    0.000000]  memory: 08000000 @ 00000000 (usable)
[    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, VIPT, cache aliases, linesize 32 bytes
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] On node 0 totalpages: 32768
[    0.000000] free_area_init_node: node 0, pgdat 8053e690, node_mem_map 81008c20
[    0.000000]   Normal zone: 256 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 32768 pages, LIFO batch:7
[    0.000000] random: get_random_bytes called from start_kernel+0x90/0x47c with crng_init=0
[    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: 32512
[    0.000000] Kernel command line: console=ttyS0,115200n8 rootfstype=squashfs,jffs2
[    0.000000] PID hash table entries: 512 (order: -1, 2048 bytes)
[    0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
[    0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
[    0.000000] Writing ErrCtl register=00000000
[    0.000000] Readback ErrCtl register=00000000
[    0.000000] Memory: 122992K/131072K available (3892K kernel code, 159K rwdata, 940K rodata, 1208K init, 266K bss, 8080K reserved, 0K cma-reserved)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS: 51
[    0.000000] CPU clock: 720.000 MHz
[    0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 5309056796 ns
[    0.000008] sched_clock: 32 bits at 360MHz, resolution 2ns, wraps every 5965232126ns
[    0.008287] Calibrating delay loop... 359.42 BogoMIPS (lpj=718848)
[    0.042884] pid_max: default: 32768 minimum: 301
[    0.047923] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.054968] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.066001] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.076401] futex hash table entries: 256 (order: -1, 3072 bytes)
[    0.082957] pinctrl core: initialized pinctrl subsystem
[    0.089238] NET: Registered protocol family 16
[    0.099947] PCI host bridge /ahb/apb/pcie-controller@18250000 ranges:
[    0.106841]  MEM 0x0000000012000000..0x0000000013ffffff
[    0.112401]   IO 0x0000000000000001..0x0000000000000001
[    0.133416] PCI host bridge to bus 0000:00
[    0.137822] pci_bus 0000:00: root bus resource [mem 0x12000000-0x13ffffff]
[    0.145145] pci_bus 0000:00: root bus resource [io  0x0001]
[    0.151074] pci_bus 0000:00: root bus resource [??? 0x00000000 flags 0x0]
[    0.158299] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
[    0.166757] pci 0000:00:00.0: [168c:003c] type 00 class 0x028000
[    0.166811] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x001fffff 64bit]
[    0.166866] pci 0000:00:00.0: reg 0x30: [mem 0x00000000-0x0000ffff pref]
[    0.166940] pci 0000:00:00.0: supports D1 D2
[    0.167119] pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 00
[    0.167142] pci 0000:00:00.0: BAR 0: assigned [mem 0x12000000-0x121fffff 64bit]
[    0.174959] pci 0000:00:00.0: BAR 6: assigned [mem 0x12200000-0x1220ffff pref]
[    0.184702] clocksource: Switched to clocksource MIPS
[    0.190920] NET: Registered protocol family 2
[    0.196201] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[    0.203659] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[    0.210437] TCP: Hash tables configured (established 1024 bind 1024)
[    0.217307] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.223555] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.230414] NET: Registered protocol family 1
[    0.235115] PCI: CLS 0 bytes, default 32
[    0.237444] Crashlog allocated RAM at address 0x3f00000
[    0.244073] workingset: timestamp_bits=30 max_order=15 bucket_order=0
[    0.254850] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.261085] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[    0.278737] io scheduler noop registered
[    0.282945] io scheduler deadline registered (default)
[    0.288725] ar7200-usb-phy 18030000.usb-phy0: phy reset is missing
[    0.295366] ar7200-usb-phy 18030010.usb-phy1: phy reset is missing
[    0.303608] pinctrl-single 1804002c.pinmux: 544 pins at pa b804002c size 68
[    0.311529] gpio-export gpio-export: 2 gpio(s) exported
[    0.317860] Serial: 8250/16550 driver, 1 ports, IRQ sharing disabled
[    0.325257] console [ttyS0] disabled
[    0.329125] 18020000.uart: ttyS0 at MMIO 0x18020000 (irq = 9, base_baud = 2500000) is a 16550A
[    0.338314] console [ttyS0] enabled
[    0.345737] bootconsole [early0] disabled
[    0.370119] m25p80 spi0.0: w25q128 (16384 Kbytes)
[    0.374950] 3 fixed-partitions partitions found on MTD device spi0.0
[    0.381407] Creating 3 MTD partitions on "spi0.0":
[    0.386278] 0x000000000000-0x000000020000 : "u-boot"
[    0.391992] 0x000000020000-0x000000ff0000 : "firmware"
[    0.398208] 2 tplink-fw partitions found on MTD device firmware
[    0.404249] Creating 2 MTD partitions on "firmware":
[    0.409300] 0x000000000000-0x00000019bbf9 : "kernel"
[    0.414932] 0x00000019bbfc-0x000000fd0000 : "rootfs"
[    0.420586] mtd: device 3 (rootfs) set to be root filesystem
[    0.426421] 1 squashfs-split partitions found on MTD device rootfs
[    0.432721] 0x000000c00000-0x000000fd0000 : "rootfs_data"
[    0.438806] 0x000000ff0000-0x000001000000 : "art"
[    0.445224] libphy: Fixed MDIO Bus: probed
[    0.766405] libphy: ag71xx_mdio: probed
[    0.773061] switch0: Atheros AR8327 rev. 4 switch registered on mdio-bus.0
[    1.156697] random: fast init done
[    1.358020] ag71xx 19000000.eth: connected to PHY at mdio-bus.0:00 [uid=004dd034, driver=Atheros AR8216/AR8236/AR8316]
[    1.369391] eth0: Atheros AG71xx at 0xb9000000, irq 4, mode: rgmii
[    1.690282] ag71xx 1a000000.eth: connected to PHY at fixed-0:00 [uid=00000000, driver=Generic PHY]
[    1.699890] eth1: Atheros AG71xx at 0xba000000, irq 5, mode: sgmii
[    1.707542] nf_conntrack version 0.5.0 (2048 buckets, 8192 max)
[    1.714486] NET: Registered protocol family 10
[    1.723132] Segment Routing with IPv6
[    1.726980] NET: Registered protocol family 17
[    1.731550] 8021q: 802.1Q VLAN Support v1.8
[    1.742602] VFS: Mounted root (squashfs filesystem) readonly on device 31:3.
[    1.754156] Freeing unused kernel memory: 1208K
[    1.758769] This architecture does not have kernel memory protection.
[    2.479633] init: Console is alive
[    2.483307] init: - watchdog -
[    5.505326] kmodloader: loading kernel modules from /etc/modules-boot.d/*
[    5.749592] usbcore: registered new interface driver usbfs
[    5.755255] usbcore: registered new interface driver hub
[    5.760768] usbcore: registered new device driver usb
[    5.771407] exFAT: Version 1.2.9
[    5.818285] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    5.832688] SCSI subsystem initialized
[    5.841341] ehci-platform: EHCI generic platform driver
[    5.846890] ehci-platform 1b000000.usb: EHCI Host Controller
[    5.852689] ehci-platform 1b000000.usb: new USB bus registered, assigned bus number 1
[    5.860723] ehci-platform 1b000000.usb: irq 14, io mem 0x1b000000
[    5.880722] ehci-platform 1b000000.usb: USB 2.0 started, EHCI 1.00
[    5.887718] hub 1-0:1.0: USB hub found
[    5.891839] hub 1-0:1.0: 1 port detected
[    5.896378] ehci-platform 1b400000.usb: EHCI Host Controller
[    5.902195] ehci-platform 1b400000.usb: new USB bus registered, assigned bus number 2
[    5.910231] ehci-platform 1b400000.usb: irq 15, io mem 0x1b400000
[    5.928725] ehci-platform 1b400000.usb: USB 2.0 started, EHCI 1.00
[    5.935682] hub 2-0:1.0: USB hub found
[    5.939840] hub 2-0:1.0: 1 port detected
[    5.948444] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    5.956184] ohci-platform: OHCI generic platform driver
[    5.965729] usbcore: registered new interface driver usb-storage
[    5.973787] usbcore: registered new interface driver uas
[    5.979791] kmodloader: done loading kernel modules from /etc/modules-boot.d/*
[    5.997512] init: - preinit -
[    6.589773] usb 1-1: new high-speed USB device number 2 using ehci-platform
[    7.147219] random: procd: uninitialized urandom read (4 bytes read)
[    7.154118] usb-storage 1-1:1.0: USB Mass Storage device detected
[    7.167195] scsi host0: usb-storage 1-1:1.0
[    7.537558] random: jshn: uninitialized urandom read (4 bytes read)
[    7.781922] random: jshn: uninitialized urandom read (4 bytes read)
[    8.229571] scsi 0:0:0:0: Direct-Access     USB      USB 2.0 Flash    8.07 PQ: 0 ANSI: 2
[    8.331291] sd 0:0:0:0: [sda] 3952640 512-byte logical blocks: (2.02 GB/1.88 GiB)
[    8.339923] sd 0:0:0:0: [sda] Write Protect is off
[    8.344828] sd 0:0:0:0: [sda] Mode Sense: 03 00 00 00
[    8.348768] sd 0:0:0:0: [sda] No Caching mode page found
[    8.354200] sd 0:0:0:0: [sda] Assuming drive cache: write through
[    8.384502]  sda: sda1
[    8.390141] sd 0:0:0:0: [sda] Attached SCSI removable disk
[    8.943668] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
[    8.949694] IPv6: ADDRCONF(NETDEV_UP): eth1.1: link is not ready
[    9.985831] eth1: link up (1000Mbps/Full duplex)
[    9.990552] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
[    9.997218] IPv6: ADDRCONF(NETDEV_CHANGE): eth1.1: link becomes ready
[   12.165069] mount_root: loading kmods from internal overlay
[   12.232284] kmodloader: loading kernel modules from //etc/modules-boot.d/*
[   12.241000] kmodloader: done loading kernel modules from //etc/modules-boot.d/*
[   12.588981] jffs2: notice: (534) jffs2_build_xattr_subsystem: complete building xattr subsystem, 5 of xdatum (2 unchecked, 3 orphan) and 39 of xref (3 dead, 0 orphan) found.
[   12.605197] block: attempting to load /tmp/jffs_cfg/upper/etc/config/fstab
[   12.618850] block: extroot: not configured
[   12.699827] jffs2: notice: (532) jffs2_build_xattr_subsystem: complete building xattr subsystem, 5 of xdatum (2 unchecked, 3 orphan) and 39 of xref (3 dead, 0 orphan) found.
[   12.717175] mount_root: loading kmods from internal overlay
[   12.778239] kmodloader: loading kernel modules from /tmp/overlay/upper/etc/modules-boot.d/*
[   12.789274] kmodloader: done loading kernel modules from /tmp/overlay/upper/etc/modules-boot.d/*
[   13.015047] block: attempting to load /tmp/jffs_cfg/upper/etc/config/fstab
[   13.026554] block: extroot: not configured
[   13.031620] mount_root: switching to jffs2 overlay
[   13.092214] overlayfs: upper fs does not support tmpfile.
[   13.102187] urandom-seed: Seeding with /etc/urandom.seed
[   13.240536] eth1: link down
[   13.259520] procd: - early -
[   13.262580] procd: - watchdog -
[   13.885317] procd: - watchdog -
[   13.888819] procd: - ubus -
[   14.067972] urandom_read: 5 callbacks suppressed
[   14.067978] random: ubusd: uninitialized urandom read (4 bytes read)
[   14.081458] random: ubusd: uninitialized urandom read (4 bytes read)
[   14.089050] procd: - init -
[   14.772417] kmodloader: loading kernel modules from /etc/modules.d/*
[   14.819183] device-mapper: ioctl: 4.37.0-ioctl (2017-09-20) initialised: dm-devel@redhat.com
[   14.838552] Key type dns_resolver registered
[   14.864283] RPC: Registered named UNIX socket transport module.
[   14.870332] RPC: Registered udp transport module.
[   14.875108] RPC: Registered tcp transport module.
[   14.879884] RPC: Registered tcp NFSv4.1 backchannel transport module.
[   14.896253] ntfs: driver 2.1.32 [Flags: R/O MODULE].
[   14.915858] loop: module loaded
[   14.935097] tun: Universal TUN/TAP device driver, 1.6
[   15.001993] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[   15.020464] NFS: Registering the id_resolver key type
[   15.025674] Key type id_resolver registered
[   15.029931] Key type id_legacy registered
[   15.063694] ip6_tables: (C) 2000-2006 Netfilter Core Team
[   15.204732] Netfilter messages via NETLINK v0.30.
[   15.213588] ip_set: protocol 6
[   15.284392] Mirror/redirect action on
[   15.309669] u32 classifier
[   15.312422]     input device check on
[   15.316176]     Actions configured
[   15.340962] GACT probability on
[   15.358422] Simple TC action Loaded
[   15.416674] fuse init (API version 7.26)
[   15.432040] Loading modules backported from Linux version v4.19.32-0-g3a2156c839c7
[   15.439777] Backport generated by backports.git v4.19.32-1-0-g1c4f7569
[   15.468965] ip_tables: (C) 2000-2006 Netfilter Core Team
[   15.494515] ctnetlink v0.93: registering with nfnetlink.
[   15.660992] usbcore: registered new interface driver ums-alauda
[   15.678674] usbcore: registered new interface driver ums-cypress
[   15.692859] usbcore: registered new interface driver ums-datafab
[   15.701696] usbcore: registered new interface driver ums-freecom
[   15.710986] usbcore: registered new interface driver ums-isd200
[   15.720201] usbcore: registered new interface driver ums-jumpshot
[   15.729278] usbcore: registered new interface driver ums-karma
[   15.739379] usbcore: registered new interface driver ums-sddr09
[   15.748598] usbcore: registered new interface driver ums-sddr55
[   15.758036] usbcore: registered new interface driver ums-usbat
[   15.767873] usbcore: registered new interface driver usblp
[   15.935079] xt_time: kernel timezone is -0000
[   15.942830] usbcore: registered new interface driver cdc_ether
[   16.262807] PPP generic driver version 2.4.2
[   16.269697] NET: Registered protocol family 24
[   16.277586] usbcore: registered new interface driver rndis_host
[   16.319962] PCI: Enabling device 0000:00:00.0 (0000 -> 0002)
[   16.325907] ath10k_pci 0000:00:00.0: pci irq legacy oper_irq_mode 1 irq_mode 0 reset_mode 0
[   16.589362] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/pre-cal-pci-0000:00:00.0.bin failed with error -2
[   16.600251] ath10k_pci 0000:00:00.0: Falling back to user helper
[   16.683754] firmware ath10k!pre-cal-pci-0000:00:00.0.bin: firmware_loading_store: map pages failed
[   16.694153] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA988X/hw2.0/firmware-6.bin failed with error -2
[   16.705048] ath10k_pci 0000:00:00.0: Falling back to user helper
[   17.070534] firmware ath10k!QCA988X!hw2.0!firmware-6.bin: firmware_loading_store: map pages failed
[   17.084048] ath10k_pci 0000:00:00.0: qca988x hw2.0 target 0x4100016c chip_id 0x043202ff sub 0000:0000
[   17.093436] ath10k_pci 0000:00:00.0: kconfig debug 0 debugfs 1 tracing 0 dfs 1 testmode 1
[   17.106523] ath10k_pci 0000:00:00.0: firmware ver 10.2.4-1.0-00045 api 5 features no-p2p,raw-mode,mfp,allows-mesh-bcast crc32 ccbd5104
[   17.200310] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA988X/hw2.0/board-2.bin failed with error -2
[   17.210939] ath10k_pci 0000:00:00.0: Falling back to user helper
[   17.292419] firmware ath10k!QCA988X!hw2.0!board-2.bin: firmware_loading_store: map pages failed
[   17.301703] ath10k_pci 0000:00:00.0: board_file api 1 bmi_id N/A crc32 bebc7c08
[   18.377958] ath10k_pci 0000:00:00.0: firmware crashed! (guid n/a)
[   18.384177] ath10k_pci 0000:00:00.0: qca988x hw2.0 target 0x4100016c chip_id 0x043202ff sub 0000:0000
[   18.393537] ath10k_pci 0000:00:00.0: kconfig debug 0 debugfs 1 tracing 0 dfs 1 testmode 1
[   18.406603] ath10k_pci 0000:00:00.0: firmware ver 10.2.4-1.0-00045 api 5 features no-p2p,raw-mode,mfp,allows-mesh-bcast crc32 ccbd5104
[   18.418909] ath10k_pci 0000:00:00.0: board_file api 1 bmi_id N/A crc32 bebc7c08
[   18.426336] ath10k_pci 0000:00:00.0: htt-ver 0.0 wmi-op 5 htt-op 2 cal file max-sta 128 raw 0 hwcrypto 1
[   18.437993] ath10k_pci 0000:00:00.0: firmware register dump:
[   18.443743] ath10k_pci 0000:00:00.0: [00]: 0x4100016C 0x000015B3 0x009BA0EA 0x00955B31
[   18.451784] ath10k_pci 0000:00:00.0: [04]: 0x009BA0EA 0x00060130 0x0000001D 0xA3654945
[   18.459818] ath10k_pci 0000:00:00.0: [08]: 0xFFFFFFFF 0x00401F6A 0x0000096C 0xFFFFFFFF
[   18.467851] ath10k_pci 0000:00:00.0: [12]: 0x00000009 0x00000000 0x009BA798 0x009BA7F3
[   18.475887] ath10k_pci 0000:00:00.0: [16]: 0x00958080 0x0094085D 0x00000000 0x00000000
[   18.483921] ath10k_pci 0000:00:00.0: [20]: 0x409BA0EA 0x0040AA14 0x0040AAC4 0x00000001
[   18.491956] ath10k_pci 0000:00:00.0: [24]: 0x809BAE15 0x0040AA74 0x5440B100 0xC09BA0EA
[   18.499990] ath10k_pci 0000:00:00.0: [28]: 0x809BB3AE 0x0040AAA4 0x000000E2 0x00000001
[   18.508024] ath10k_pci 0000:00:00.0: [32]: 0x809848C0 0x0040ABA4 0x0040EB58 0x0000003F
[   18.516058] ath10k_pci 0000:00:00.0: [36]: 0x8098FE4D 0x0040ABE4 0x0040DF80 0x004062DC
[   18.524092] ath10k_pci 0000:00:00.0: [40]: 0x8098A8BA 0x0040AC34 0x0040AC94 0x004062DC
[   18.532127] ath10k_pci 0000:00:00.0: [44]: 0x80988865 0x0040AC94 0x00410420 0x00400000
[   18.540161] ath10k_pci 0000:00:00.0: [48]: 0x8098AFA8 0x0040AD44 0x00410420 0x00000001
[   18.548196] ath10k_pci 0000:00:00.0: [52]: 0x809B6100 0x0040AD84 0x00410420 0x00411004
[   18.556231] ath10k_pci 0000:00:00.0: [56]: 0x809B2234 0x0040ADA4 0x00400000 0x00416C64
[   18.564261] ath10k_pci 0000:00:00.0: Copy Engine register dump:
[   18.570280] ath10k_pci 0000:00:00.0: [00]: 0x00057400  11  11   3   3
[   18.576828] ath10k_pci 0000:00:00.0: [01]: 0x00057800   3   3   7   8
[   18.583374] ath10k_pci 0000:00:00.0: [02]: 0x00057c00   1   1   0   1
[   18.589921] ath10k_pci 0000:00:00.0: [03]: 0x00058000   1   1   2   1
[   18.596468] ath10k_pci 0000:00:00.0: [04]: 0x00058400   0   0  40   0
[   18.603016] ath10k_pci 0000:00:00.0: [05]: 0x00058800   0   0   0   0
[   18.609563] ath10k_pci 0000:00:00.0: [06]: 0x00058c00   0   0   0   0
[   18.616110] ath10k_pci 0000:00:00.0: [07]: 0x00059000   0   0   0   0
[   22.380734] random: crng init done
[   23.584711] ath10k_pci 0000:00:00.0: wmi unified ready event not received
[   23.690055] ath10k_pci 0000:00:00.0: could not init core (-145)
[   23.696194] ath10k_pci 0000:00:00.0: could not probe fw (-145)
[   23.702145] ath10k_pci 0000:00:00.0: cannot restart a device that hasn't been started
[   23.762467] ath: phy1: Unable to initialize hardware; initialization status: -5
[   23.769903] ath9k 18100000.wmac: failed to initialize device
[   23.775684] ath9k: probe of 18100000.wmac failed with error -5
[   23.782994] kmodloader: done loading kernel modules from /etc/modules.d/*
[   35.180558] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
[   35.187676] eth1: link up (1000Mbps/Full duplex)
[   35.204767] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
[   35.223480] br-lan: port 1(eth1.1) entered blocking state
[   35.229003] br-lan: port 1(eth1.1) entered disabled state
[   35.234746] device eth1.1 entered promiscuous mode
[   35.239642] device eth1 entered promiscuous mode
[   35.458878] br-lan: port 1(eth1.1) entered blocking state
[   35.464402] br-lan: port 1(eth1.1) entered forwarding state
[   35.470223] IPv6: ADDRCONF(NETDEV_UP): br-lan: link is not ready
[   35.557019] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   35.593750] IPv6: ADDRCONF(NETDEV_UP): eth0.2: link is not ready
[   36.374484] IPv6: ADDRCONF(NETDEV_CHANGE): br-lan: link becomes ready
[   36.958046] eth0: link up (1000Mbps/Full duplex)
[   36.978301] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   37.020251] IPv6: ADDRCONF(NETDEV_CHANGE): eth0.2: link becomes ready

But it still crashes on loading the firmware for the wireless.

22

Have you done a clean install?

23

Depends on what you mean with clean install. I have installed the "official" firmware from cli
(sysupgrade -n )

24

I mean not keeping settings when upgrading. A "clean flash" so to speak.

1 Like
25

Thanks, yes when I upgrade from command line I use the command option -n to not save any configuration.

When the router comes back up, the Wireless file in /etc/config is missing, and the dmesg is shown in a previous post. Looks like it cant load the driver.

26

With stock firmware, can you configure APs and connect to them on the air? Just showing up in the menu doesn't mean the hardware is working.

27

Hi mk24, sorry for the late reply.
No there were still no wireless on the stock firmware, back in March when I tested. I will see if I can dig the router out again and try again.

28

The website https://www.friedzombie.com/tplink-stripped-firmware/ is down. Is there an alternative?
I try to extract the firmware RE450 from bootloader with this site. (https://freifunk-firmware.de/bootcut.php)
According to this site https://openwrt.org/toh/tp-link/tp-link_re450 the bootloader is from 0x000000000000-0x000000020000. But it seems not right.

29

Sorry to dig up this old thread again, but I've decided to try and fix my C7.

I just tried to install the factory version (openwrt-19.07.5-ath79-generic-tplink_archer-c7-v2-squashfs-factory.bin) again and there is still no wireless.
Installed through CLI with "sysupgrade -n openwrt..."

dmesg after first login gives me:

root@OpenWrt:~# dmesg
[    0.000000] Linux version 4.14.209 (builder@buildhost) (gcc version 7.5.0 (OpenWrt GCC 7.5.0 r11257-5090152ae3)) #0 Sun Dec 6 07:31:03 2020
[    0.000000] bootconsole [early0] enabled
[    0.000000] CPU0 revision is: 00019750 (MIPS 74Kc)
[    0.000000] MIPS: machine is TP-Link Archer C7 v2
[    0.000000] SoC: Qualcomm Atheros QCA9558 ver 1 rev 0
[    0.000000] Determined physical RAM map:
[    0.000000]  memory: 08000000 @ 00000000 (usable)
[    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, VIPT, cache aliases, linesize 32 bytes
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] On node 0 totalpages: 32768
[    0.000000] free_area_init_node: node 0, pgdat 804fbf80, node_mem_map 81008c20
[    0.000000]   Normal zone: 256 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 32768 pages, LIFO batch:7
[    0.000000] random: get_random_bytes called from 0x804ff740 with crng_init=0
[    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: 32512
[    0.000000] Kernel command line: console=ttyS0,115200n8 rootfstype=squashfs,jffs2
[    0.000000] PID hash table entries: 512 (order: -1, 2048 bytes)
[    0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
[    0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
[    0.000000] Writing ErrCtl register=00000000
[    0.000000] Readback ErrCtl register=00000000
[    0.000000] Memory: 123300K/131072K available (4035K kernel code, 156K rwdata, 532K rodata, 1220K init, 212K bss, 7772K reserved, 0K cma-reserved)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS: 51
[    0.000000] CPU clock: 720.000 MHz
[    0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 5309056796 ns
[    0.000008] sched_clock: 32 bits at 360MHz, resolution 2ns, wraps every 5965232126ns
[    0.008305] Calibrating delay loop... 358.80 BogoMIPS (lpj=1794048)
[    0.074993] pid_max: default: 32768 minimum: 301
[    0.080070] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.087103] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.098152] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.108651] futex hash table entries: 256 (order: -1, 3072 bytes)
[    0.115197] pinctrl core: initialized pinctrl subsystem
[    0.122606] NET: Registered protocol family 16
[    0.130359] PCI host bridge /ahb/pcie-controller@18250000 ranges:
[    0.136894]  MEM 0x0000000012000000..0x0000000013ffffff
[    0.142447]   IO 0x0000000000000001..0x0000000000000001
[    0.162081] PCI host bridge to bus 0000:00
[    0.166446] pci_bus 0000:00: root bus resource [mem 0x12000000-0x13ffffff]
[    0.173794] pci_bus 0000:00: root bus resource [io  0x0001]
[    0.179720] pci_bus 0000:00: root bus resource [??? 0x00000000 flags 0x0]
[    0.186949] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
[    0.195402] pci 0000:00:00.0: [168c:003c] type 00 class 0x028000
[    0.195455] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x001fffff 64bit]
[    0.195509] pci 0000:00:00.0: reg 0x30: [mem 0x00000000-0x0000ffff pref]
[    0.195582] pci 0000:00:00.0: supports D1 D2
[    0.195754] pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 00
[    0.195777] pci 0000:00:00.0: BAR 0: assigned [mem 0x12000000-0x121fffff 64bit]
[    0.203601] pci 0000:00:00.0: BAR 6: assigned [mem 0x12200000-0x1220ffff pref]
[    0.213663] clocksource: Switched to clocksource MIPS
[    0.219848] NET: Registered protocol family 2
[    0.225224] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[    0.232646] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[    0.239453] TCP: Hash tables configured (established 1024 bind 1024)
[    0.246327] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.252552] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.259454] NET: Registered protocol family 1
[    0.264154] PCI: CLS 0 bytes, default 32
[    0.266509] Crashlog allocated RAM at address 0x3f00000
[    0.273095] workingset: timestamp_bits=30 max_order=15 bucket_order=0
[    0.284082] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.290284] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[    0.308422] io scheduler noop registered
[    0.312596] io scheduler deadline registered (default)
[    0.318381] ar7200-usb-phy 18030000.usb-phy0: phy reset is missing
[    0.325041] ar7200-usb-phy 18030010.usb-phy1: phy reset is missing
[    0.333217] pinctrl-single 1804002c.pinmux: 544 pins at pa b804002c size 68
[    0.341149] gpio-export gpio-export: 2 gpio(s) exported
[    0.347461] Serial: 8250/16550 driver, 16 ports, IRQ sharing enabled
[    0.356216] console [ttyS0] disabled
[    0.360047] 18020000.uart: ttyS0 at MMIO 0x18020000 (irq = 9, base_baud = 2500000) is a 16550A
[    0.369261] console [ttyS0] enabled
[    0.376689] bootconsole [early0] disabled
[    0.403169] m25p80 spi0.0: w25q128 (16384 Kbytes)
[    0.408019] 3 fixed-partitions partitions found on MTD device spi0.0
[    0.414476] Creating 3 MTD partitions on "spi0.0":
[    0.419344] 0x000000000000-0x000000020000 : "u-boot"
[    0.425043] 0x000000020000-0x000000ff0000 : "firmware"
[    0.431208] 2 tplink-fw partitions found on MTD device firmware
[    0.437259] Creating 2 MTD partitions on "firmware":
[    0.442303] 0x000000000000-0x0000001866ff : "kernel"
[    0.447933] 0x000000186700-0x000000fd0000 : "rootfs"
[    0.453537] mtd: device 3 (rootfs) set to be root filesystem
[    0.459355] 1 squashfs-split partitions found on MTD device rootfs
[    0.465655] 0x000000440000-0x000000fd0000 : "rootfs_data"
[    0.471716] 0x000000ff0000-0x000001000000 : "art"
[    0.478066] libphy: Fixed MDIO Bus: probed
[    0.825360] libphy: ag71xx_mdio: probed
[    0.831894] switch0: Atheros AR8327 rev. 4 switch registered on mdio-bus.0
[    1.482965] ag71xx 19000000.eth: connected to PHY at mdio-bus.0:00 [uid=004dd034, driver=Atheros AR8216/AR8236/AR8316]
[    1.494352] eth0: Atheros AG71xx at 0xb9000000, irq 4, mode: rgmii
[    1.835251] ag71xx 1a000000.eth: connected to PHY at fixed-0:00 [uid=00000000, driver=Generic PHY]
[    1.844858] eth1: Atheros AG71xx at 0xba000000, irq 5, mode: sgmii
[    1.853248] NET: Registered protocol family 10
[    1.862210] Segment Routing with IPv6
[    1.866063] NET: Registered protocol family 17
[    1.870611] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[    1.883773] 8021q: 802.1Q VLAN Support v1.8
[    1.890230] hctosys: unable to open rtc device (rtc0)
[    1.901474] VFS: Mounted root (squashfs filesystem) readonly on device 31:3.
[    1.913045] Freeing unused kernel memory: 1220K
[    1.917669] This architecture does not have kernel memory protection.
[    2.583679] random: fast init done
[    2.626883] init: Console is alive
[    2.630512] init: - watchdog -
[    3.816592] kmodloader: loading kernel modules from /etc/modules-boot.d/*
[    4.083360] usbcore: registered new interface driver usbfs
[    4.089031] usbcore: registered new interface driver hub
[    4.094523] usbcore: registered new device driver usb
[    4.104772] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    4.112711] ehci-platform: EHCI generic platform driver
[    4.118276] ehci-platform 1b000000.usb: EHCI Host Controller
[    4.124087] ehci-platform 1b000000.usb: new USB bus registered, assigned bus number 1
[    4.132098] ehci-platform 1b000000.usb: irq 14, io mem 0x1b000000
[    4.163739] ehci-platform 1b000000.usb: USB 2.0 started, EHCI 1.00
[    4.170695] hub 1-0:1.0: USB hub found
[    4.174817] hub 1-0:1.0: 1 port detected
[    4.179296] ehci-platform 1b400000.usb: EHCI Host Controller
[    4.185114] ehci-platform 1b400000.usb: new USB bus registered, assigned bus number 2
[    4.193129] ehci-platform 1b400000.usb: irq 15, io mem 0x1b400000
[    4.223693] ehci-platform 1b400000.usb: USB 2.0 started, EHCI 1.00
[    4.230643] hub 2-0:1.0: USB hub found
[    4.234785] hub 2-0:1.0: 1 port detected
[    4.239730] kmodloader: done loading kernel modules from /etc/modules-boot.d/*
[    4.257453] init: - preinit -
[    5.018340] usb 2-1: new high-speed USB device number 2 using ehci-platform
[    5.481262] random: procd: uninitialized urandom read (4 bytes read)
[    5.492234] random: jshn: uninitialized urandom read (4 bytes read)
[    5.683190] random: jshn: uninitialized urandom read (4 bytes read)
[    7.059418] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
[    7.065446] IPv6: ADDRCONF(NETDEV_UP): eth1.1: link is not ready
[    8.114800] eth1: link up (1000Mbps/Full duplex)
[    8.119503] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
[    8.127372] IPv6: ADDRCONF(NETDEV_CHANGE): eth1.1: link becomes ready
[   10.235508] mount_root: jffs2 not ready yet, using temporary tmpfs overlay
[   10.263526] urandom-seed: Seed file not found (/etc/urandom.seed)
[   10.357081] eth1: link down
[   10.375881] procd: - early -
[   10.378892] procd: - watchdog -
[   11.043625] procd: - watchdog -
[   11.047112] procd: - ubus -
[   11.108818] urandom_read: 5 callbacks suppressed
[   11.108825] random: ubusd: uninitialized urandom read (4 bytes read)
[   11.236972] random: ubusd: uninitialized urandom read (4 bytes read)
[   11.244600] procd: - init -
[   12.074123] kmodloader: loading kernel modules from /etc/modules.d/*
[   12.097376] ip6_tables: (C) 2000-2006 Netfilter Core Team
[   12.122182] Loading modules backported from Linux version v4.19.137-0-gc076c79e03c6
[   12.129992] Backport generated by backports.git v4.19.137-1-0-g60c3a249
[   12.155641] ip_tables: (C) 2000-2006 Netfilter Core Team
[   12.180368] nf_conntrack version 0.5.0 (2048 buckets, 8192 max)
[   12.277281] xt_time: kernel timezone is -0000
[   12.361950] urngd: v1.0.2 started.
[   12.378037] PPP generic driver version 2.4.2
[   12.394472] NET: Registered protocol family 24
[   12.446354] ath10k 4.19 driver, optimized for CT firmware, probing pci device: 0x3c.
[   12.464405] PCI: Enabling device 0000:00:00.0 (0000 -> 0002)
[   12.470313] ath10k_pci 0000:00:00.0: pci irq legacy oper_irq_mode 1 irq_mode 0 reset_mode 0
[   12.579512] random: crng init done
[   12.783812] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/fwcfg-pci-0000:00:00.0.txt failed with error -2
[   12.794518] ath10k_pci 0000:00:00.0: Falling back to user helper
[   13.082820] firmware ath10k!fwcfg-pci-0000:00:00.0.txt: firmware_loading_store: map pages failed
[   13.092000] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/pre-cal-pci-0000:00:00.0.bin failed with error -2
[   13.102883] ath10k_pci 0000:00:00.0: Falling back to user helper
[   13.488853] firmware ath10k!pre-cal-pci-0000:00:00.0.bin: firmware_loading_store: map pages failed
[   13.498238] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/cal-pci-0000:00:00.0.bin failed with error -2
[   13.508765] ath10k_pci 0000:00:00.0: Falling back to user helper
[   13.994754] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA988X/hw2.0/ct-firmware-5.bin failed with error -2
[   14.005909] ath10k_pci 0000:00:00.0: Falling back to user helper
[   14.202121] firmware ath10k!QCA988X!hw2.0!ct-firmware-5.bin: firmware_loading_store: map pages failed
[   14.211745] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA988X/hw2.0/ct-firmware-2.bin failed with error -2
[   14.222895] ath10k_pci 0000:00:00.0: Falling back to user helper
[   14.405191] firmware ath10k!QCA988X!hw2.0!ct-firmware-2.bin: firmware_loading_store: map pages failed
[   14.414817] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA988X/hw2.0/firmware-6.bin failed with error -2
[   14.425698] ath10k_pci 0000:00:00.0: Falling back to user helper
[   14.605983] firmware ath10k!QCA988X!hw2.0!firmware-6.bin: firmware_loading_store: map pages failed
[   14.615355] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA988X/hw2.0/firmware-5.bin failed with error -2
[   14.626244] ath10k_pci 0000:00:00.0: Falling back to user helper
[   14.807310] firmware ath10k!QCA988X!hw2.0!firmware-5.bin: firmware_loading_store: map pages failed
[   14.816676] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA988X/hw2.0/firmware-4.bin failed with error -2
[   14.827561] ath10k_pci 0000:00:00.0: Falling back to user helper
[   15.006555] firmware ath10k!QCA988X!hw2.0!firmware-4.bin: firmware_loading_store: map pages failed
[   15.015921] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA988X/hw2.0/firmware-3.bin failed with error -2
[   15.026810] ath10k_pci 0000:00:00.0: Falling back to user helper
[   15.205503] firmware ath10k!QCA988X!hw2.0!firmware-3.bin: firmware_loading_store: map pages failed
[   15.418699] ath10k_pci 0000:00:00.0: qca988x hw2.0 target 0x4100016c chip_id 0x043202ff sub 0000:0000
[   15.428101] ath10k_pci 0000:00:00.0: kconfig debug 0 debugfs 1 tracing 0 dfs 1 testmode 0
[   15.440535] ath10k_pci 0000:00:00.0: firmware ver 10.1-ct-8x-__fW-022-538f0906 api 2 features wmi-10.x,has-wmi-mgmt-tx,mfp,txstatus-noack,wmi-10.x-CT,ratemask-CT,txrate-CT,get-temp-CT,tx-rc-CT,cust-stats-CT,retry-gt2-CT,txrate2-CT,beacon-cb-CT,wmi-block-ack-CT crc32 e1c91a74
[   15.492940] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA988X/hw2.0/board-2.bin failed with error -2
[   15.503554] ath10k_pci 0000:00:00.0: Falling back to user helper
[   15.597110] firmware ath10k!QCA988X!hw2.0!board-2.bin: firmware_loading_store: map pages failed
[   15.606361] ath10k_pci 0000:00:00.0: board_file api 1 bmi_id N/A crc32 bebc7c08
[   16.549435] ath10k_pci 0000:00:00.0: 10.1 wmi init: vdevs: 16  peers: 127  tid: 256
[   16.558119] ath10k_pci 0000:00:00.0: firmware crashed! (guid a6282451-aacb-4bb0-9a28-fe9bb60199a2)
[   16.567255] ath10k_pci 0000:00:00.0: qca988x hw2.0 target 0x4100016c chip_id 0x043202ff sub 0000:0000
[   16.576620] ath10k_pci 0000:00:00.0: kconfig debug 0 debugfs 1 tracing 0 dfs 1 testmode 0
[   16.589049] ath10k_pci 0000:00:00.0: firmware ver 10.1-ct-8x-__fW-022-538f0906 api 2 features wmi-10.x,has-wmi-mgmt-tx,mfp,txstatus-noack,wmi-10.x-CT,ratemask-CT,regdump-CT,txrate-CT,flush-all-CT,pingpong-CT,ch-regs-CT,nop-CT,set-special-CT,get-temp-CT,tx-rc-CT,cust-stats-CT,retry-gt2-CT,txrate2-CT,beacon-cb-CT,wmi-block-ack-CT crc32 e1c91a74
[   16.619848] ath10k_pci 0000:00:00.0: board_file api 1 bmi_id N/A crc32 bebc7c08
[   16.627274] ath10k_pci 0000:00:00.0: htt-ver 0.0 wmi-op 2 htt-op 2 cal file max-sta 128 raw 0 hwcrypto 1
[   16.638927] ath10k_pci 0000:00:00.0: firmware register dump:
[   16.644691] ath10k_pci 0000:00:00.0: [00]: 0x4100016C 0x000015B3 0x009B2AA5 0x00955B31
[   16.652719] ath10k_pci 0000:00:00.0: [04]: 0x009B2AA5 0x00060130 0x0000001D 0xA3654945
[   16.660765] ath10k_pci 0000:00:00.0: [08]: 0xFFFFFFFF 0x00401F6A 0x0000096C 0xFFFFFFFF
[   16.668807] ath10k_pci 0000:00:00.0: [12]: 0x00000009 0x00000000 0x009B2F41 0x009B2F99
[   16.676850] ath10k_pci 0000:00:00.0: [16]: 0x00958080 0x0094085D 0x00000000 0x00000000
[   16.684894] ath10k_pci 0000:00:00.0: [20]: 0x409B2AA5 0x0040AA14 0x0040AAC4 0x00000001
[   16.692927] ath10k_pci 0000:00:00.0: [24]: 0x809B366A 0x0040AA74 0x5440B100 0xC09B2AA5
[   16.700971] ath10k_pci 0000:00:00.0: [28]: 0x809B3B1E 0x0040AAA4 0x00401CC0 0x000000E2
[   16.709015] ath10k_pci 0000:00:00.0: [32]: 0x80984957 0x0040ABB4 0x0040E12C 0x0000003F
[   16.717057] ath10k_pci 0000:00:00.0: [36]: 0x8098F363 0x0040ABF4 0x0040E18C 0x004062DC
[   16.725101] ath10k_pci 0000:00:00.0: [40]: 0x80989459 0x0040AC54 0x0040ACB4 0x0040ACC4
[   16.733134] ath10k_pci 0000:00:00.0: [44]: 0x80988829 0x0040ACA4 0x0040F898 0x00400000
[   16.741179] ath10k_pci 0000:00:00.0: [48]: 0x8098996B 0x0040AD44 0x0040F898 0x00000001
[   16.749221] ath10k_pci 0000:00:00.0: [52]: 0x809AE88C 0x0040AD84 0x0040F898 0x004104DC
[   16.757278] ath10k_pci 0000:00:00.0: [56]: 0x809AB61E 0x0040ADA4 0x00400000 0x004150F4
[   16.765316] ath10k_pci 0000:00:00.0: Copy Engine register dump:
[   16.771332] ath10k_pci 0000:00:00.0: [00]: 0x00057400   7   7   3   3
[   16.777880] ath10k_pci 0000:00:00.0: [01]: 0x00057800   3   3   7   8
[   16.784427] ath10k_pci 0000:00:00.0: [02]: 0x00057c00   1   1   0   1
[   16.790962] ath10k_pci 0000:00:00.0: [03]: 0x00058000   1   1   4   1
[   16.797513] ath10k_pci 0000:00:00.0: [04]: 0x00058400   0   0  40   0
[   16.804059] ath10k_pci 0000:00:00.0: [05]: 0x00058800   0   0   0   0
[   16.810595] ath10k_pci 0000:00:00.0: [06]: 0x00058c00   0   0   0   0
[   16.817146] ath10k_pci 0000:00:00.0: [07]: 0x00059000   0   0   0   0
[   16.825700] ath10k_pci 0000:00:00.0: debug log header, dbuf: 0x412708  dropped: 0
[   16.834316] ath10k_pci 0000:00:00.0: [0] next: 0x412720 buf: 0x41056c sz: 1500 len: 56 count: 2 free: 0
[   16.844863] ath10k_pci 0000:00:00.0: ath10k_pci ATH10K_DBG_BUFFER:
[   16.851133] ath10k: [0000]: AB5A0000 0500FC17 70201031 08000000 80000000 98F84000 01005EC0 AC5A0000
[   16.860322] ath10k: [0008]: 0100FC17 B3150000 B3150000 04A94000 6C010041 B6441E3F
[   16.867919] ath10k_pci 0000:00:00.0: ATH10K_END
[   16.873527] ath10k_pci 0000:00:00.0: [1] next: 0x412708 buf: 0x410b5c sz: 1500 len: 0 count: 0 free: 0
[   21.633695] ath10k_pci 0000:00:00.0: wmi unified ready event not received
[   21.766511] ath10k_pci 0000:00:00.0: could not init core (-145)
[   21.772659] ath10k_pci 0000:00:00.0: could not probe fw (-145)
[   21.778623] ath10k_pci 0000:00:00.0: cannot restart a device that hasn't been started
[   21.823045] ath: phy1: Unable to initialize hardware; initialization status: -5
[   21.830517] ath9k 18100000.wmac: failed to initialize device
[   21.836309] ath9k: probe of 18100000.wmac failed with error -5
[   21.843509] kmodloader: done loading kernel modules from /etc/modules.d/*
[   40.740840] jffs2_scan_eraseblock(): End of filesystem marker found at 0x0
[   40.763755] jffs2_build_filesystem(): unlocking the mtd device...
[   40.763804] done.
[   40.772024] jffs2_build_filesystem(): erasing all blocks after the end marker...
[   40.850596] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
[   40.865306] eth1: link up (1000Mbps/Full duplex)
[   40.870002] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
[   40.917183] br-lan: port 1(eth1.1) entered blocking state
[   40.922666] br-lan: port 1(eth1.1) entered disabled state
[   40.928438] device eth1.1 entered promiscuous mode
[   40.933303] device eth1 entered promiscuous mode
[   41.009815] br-lan: port 1(eth1.1) entered blocking state
[   41.015336] br-lan: port 1(eth1.1) entered forwarding state
[   41.021132] IPv6: ADDRCONF(NETDEV_UP): br-lan: link is not ready
[   41.100937] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   41.138546] IPv6: ADDRCONF(NETDEV_UP): eth0.2: link is not ready
[   41.873964] IPv6: ADDRCONF(NETDEV_CHANGE): br-lan: link becomes ready
[   42.114950] eth0: link up (1000Mbps/Full duplex)
[   42.119706] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   42.140489] IPv6: ADDRCONF(NETDEV_CHANGE): eth0.2: link becomes ready
[   87.256997] done.
[   87.258980] jffs2: notice: (1457) jffs2_build_xattr_subsystem: complete building xattr subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.
[   87.456338] overlayfs: upper fs does not support tmpfile.

Hope someone can help.

30

This morning I tried to revive my Archer C7 V2 again with the latest snapshot (19.07.7)
I'm still not able to get the wireless running. The wireless config is empty.

Here is the dmesg after first boot.

BusyBox v1.33.1 (2021-05-23 13:11:38 UTC) built-in shell (ash)

  _______                     ________        __
 |       |.-----.-----.-----.|  |  |  |.----.|  |_
 |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
 |_______||   __|_____|__|__||________||__|  |____|
          |__| W I R E L E S S   F R E E D O M
 -----------------------------------------------------
 OpenWrt SNAPSHOT, r16794-d683175236
 -----------------------------------------------------
=== WARNING! =====================================
There is no root password defined on this device!
Use the "passwd" command to set up a new password
in order to prevent unauthorized SSH logins.
--------------------------------------------------
root@OpenWrt:~# dmesg
[    0.000000] Linux version 5.4.121 (builder@buildhost) (gcc version 8.4.0 (OpenWrt GCC 8.4.0 r16794-d683175236)) #0 Sun May 23 13:11:38 2021
[    0.000000] printk: bootconsole [early0] enabled
[    0.000000] CPU0 revision is: 00019750 (MIPS 74Kc)
[    0.000000] MIPS: machine is TP-Link Archer C7 v2
[    0.000000] SoC: Qualcomm Atheros QCA9558 ver 1 rev 0
[    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, VIPT, cache aliases, linesize 32 bytes
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] On node 0 totalpages: 32768
[    0.000000]   Normal zone: 288 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 32768 pages, LIFO batch:7
[    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: 32480
[    0.000000] Kernel command line: console=ttyS0,115200n8 rootfstype=squashfs,jffs2
[    0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes, linear)
[    0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes, linear)
[    0.000000] Writing ErrCtl register=00000000
[    0.000000] Readback ErrCtl register=00000000
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] Memory: 121668K/131072K available (5247K kernel code, 188K rwdata, 1192K rodata, 1236K init, 205K bss, 9404K reserved, 0K cma-reserved)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS: 51
[    0.000000] random: get_random_bytes called from start_kernel+0x358/0x54c with crng_init=0
[    0.000000] CPU clock: 720.000 MHz
[    0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 5309056796 ns
[    0.000007] sched_clock: 32 bits at 360MHz, resolution 2ns, wraps every 5965232126ns
[    0.008304] Calibrating delay loop... 358.80 BogoMIPS (lpj=1794048)
[    0.074976] pid_max: default: 32768 minimum: 301
[    0.080019] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.087791] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.100118] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.110613] futex hash table entries: 256 (order: -1, 3072 bytes, linear)
[    0.117938] pinctrl core: initialized pinctrl subsystem
[    0.125685] NET: Registered protocol family 16
[    0.157225] workqueue: max_active 576 requested for napi_workq is out of range, clamping between 1 and 512
[    0.170817] clocksource: Switched to clocksource MIPS
[    0.177182] NET: Registered protocol family 2
[    0.182016] IP idents hash table entries: 2048 (order: 2, 16384 bytes, linear)
[    0.190346] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear)
[    0.199307] TCP established hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.207476] TCP bind hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.214985] TCP: Hash tables configured (established 1024 bind 1024)
[    0.221854] UDP hash table entries: 256 (order: 0, 4096 bytes, linear)
[    0.228820] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes, linear)
[    0.236546] NET: Registered protocol family 1
[    0.241242] PCI: CLS 0 bytes, default 32
[    0.248678] workingset: timestamp_bits=14 max_order=15 bucket_order=1
[    0.261501] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.267706] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[    0.290062] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
[    0.301375] pinctrl-single 1804002c.pinmux: 544 pins, size 68
[    0.308032] gpio-export gpio-export: 2 gpio(s) exported
[    0.314383] Serial: 8250/16550 driver, 16 ports, IRQ sharing enabled
[    0.323173] printk: console [ttyS0] disabled
[    0.327749] 18020000.uart: ttyS0 at MMIO 0x18020000 (irq = 9, base_baud = 2500000) is a 16550A
[    0.336970] printk: console [ttyS0] enabled
[    0.345866] printk: bootconsole [early0] disabled
[    0.375620] spi-nor spi0.0: w25q128 (16384 Kbytes)
[    0.380517] 3 fixed-partitions partitions found on MTD device spi0.0
[    0.386980] Creating 3 MTD partitions on "spi0.0":
[    0.391862] 0x000000000000-0x000000020000 : "u-boot"
[    0.397706] 0x000000020000-0x000000ff0000 : "firmware"
[    0.405464] 2 tplink-fw partitions found on MTD device firmware
[    0.411513] Creating 2 MTD partitions on "firmware":
[    0.416553] 0x000000000000-0x000000213b81 : "kernel"
[    0.422398] 0x000000213b84-0x000000fd0000 : "rootfs"
[    0.428136] mtd: device 3 (rootfs) set to be root filesystem
[    0.435497] 1 squashfs-split partitions found on MTD device rootfs
[    0.441815] 0x000000520000-0x000000fd0000 : "rootfs_data"
[    0.448094] 0x000000ff0000-0x000001000000 : "art"
[    0.455366] libphy: Fixed MDIO Bus: probed
[    0.812629] libphy: ag71xx_mdio: probed
[    0.819204] switch0: Atheros AR8327 rev. 4 switch registered on mdio.0
[    1.470144] ag71xx 19000000.eth: connected to PHY at mdio.0:00 [uid=004dd034, driver=Atheros AR8216/AR8236/AR8316]
[    1.481227] eth0: Atheros AG71xx at 0xb9000000, irq 4, mode: rgmii
[    1.822551] ag71xx 1a000000.eth: connected to PHY at fixed-0:00 [uid=00000000, driver=Generic PHY]
[    1.832220] eth1: Atheros AG71xx at 0xba000000, irq 5, mode: sgmii
[    1.838795] i2c /dev entries driver
[    1.844646] NET: Registered protocol family 10
[    1.854504] Segment Routing with IPv6
[    1.858318] NET: Registered protocol family 17
[    1.862938] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[    1.876095] 8021q: 802.1Q VLAN Support v1.8
[    1.881150] PCI host bridge /ahb/pcie-controller@18250000 ranges:
[    1.887352]  MEM 0x0000000012000000..0x0000000013ffffff
[    1.892690]   IO 0x0000000000000001..0x0000000000000001
[    1.898134] PCI host bridge to bus 0000:00
[    1.902328] pci_bus 0000:00: root bus resource [mem 0x12000000-0x13ffffff]
[    1.909300] pci_bus 0000:00: root bus resource [io  0x0001]
[    1.914960] pci_bus 0000:00: root bus resource [??? 0x00000000 flags 0x0]
[    1.921849] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
[    1.929908] pci 0000:00:00.0: [168c:003c] type 00 class 0x028000
[    1.936056] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x001fffff 64bit]
[    1.942999] pci 0000:00:00.0: reg 0x30: [mem 0x00000000-0x0000ffff pref]
[    1.949878] pci 0000:00:00.0: supports D1 D2
[    1.955281] pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 00
[    1.962035] pci 0000:00:00.0: BAR 0: assigned [mem 0x12000000-0x121fffff 64bit]
[    1.969466] pci 0000:00:00.0: BAR 6: assigned [mem 0x12200000-0x1220ffff pref]
[    1.978625] hctosys: unable to open rtc device (rtc0)
[    1.988514] VFS: Mounted root (squashfs filesystem) readonly on device 31:3.
[    2.000182] Freeing unused kernel memory: 1236K
[    2.004807] This architecture does not have kernel memory protection.
[    2.011340] Run /sbin/init as init process
[    2.540827] random: fast init done
[    2.572966] init: Console is alive
[    2.576606] init: - watchdog -
[    3.712165] kmodloader: loading kernel modules from /etc/modules-boot.d/*
[    3.876794] usbcore: registered new interface driver usbfs
[    3.882470] usbcore: registered new interface driver hub
[    3.887946] usbcore: registered new device driver usb
[    3.898410] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    3.906521] ehci-fsl: Freescale EHCI Host controller driver
[    3.913514] ehci-platform: EHCI generic platform driver
[    3.919067] ehci-platform 1b000000.usb: EHCI Host Controller
[    3.924868] ehci-platform 1b000000.usb: new USB bus registered, assigned bus number 1
[    3.932908] ehci-platform 1b000000.usb: irq 14, io mem 0x1b000000
[    3.960890] ehci-platform 1b000000.usb: USB 2.0 started, EHCI 1.00
[    3.967877] hub 1-0:1.0: USB hub found
[    3.972089] hub 1-0:1.0: 1 port detected
[    3.976610] ehci-platform 1b400000.usb: EHCI Host Controller
[    3.982424] ehci-platform 1b400000.usb: new USB bus registered, assigned bus number 2
[    3.990468] ehci-platform 1b400000.usb: irq 15, io mem 0x1b400000
[    4.020842] ehci-platform 1b400000.usb: USB 2.0 started, EHCI 1.00
[    4.027897] hub 2-0:1.0: USB hub found
[    4.032063] hub 2-0:1.0: 1 port detected
[    4.038491] kmodloader: done loading kernel modules from /etc/modules-boot.d/*
[    4.047857] init: - preinit -
[    5.173551] random: jshn: uninitialized urandom read (4 bytes read)
[    5.292384] random: jshn: uninitialized urandom read (4 bytes read)
[    5.440560] random: jshn: uninitialized urandom read (4 bytes read)
[    6.640771] eth1: link up (1000Mbps/Full duplex)
[    6.651439] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
[    6.658160] IPv6: ADDRCONF(NETDEV_CHANGE): eth1.1: link becomes ready
[    6.713709] urandom_read: 4 callbacks suppressed
[    6.713716] random: procd: uninitialized urandom read (4 bytes read)
[   10.881408] jffs2: notice: (578) jffs2_build_xattr_subsystem: complete building xattr subsystem, 9 of xdatum (0 unchecked, 1 orphan) and 12 of xref (1 dead, 0 orphan) found.
[   10.898816] mount_root: switching to jffs2 overlay
[   10.906941] overlayfs: upper fs does not support tmpfile.
[   10.917373] urandom-seed: Seeding with /etc/urandom.seed
[   11.020486] eth1: link down
[   11.039638] procd: - early -
[   11.043470] procd: - watchdog -
[   11.609647] procd: - watchdog -
[   11.702171] procd: - ubus -
[   11.730496] random: ubusd: uninitialized urandom read (4 bytes read)
[   11.756806] random: ubusd: uninitialized urandom read (4 bytes read)
[   11.766967] procd: - init -
[   12.609027] kmodloader: loading kernel modules from /etc/modules.d/*
[   12.665592] Loading modules backported from Linux version v5.10.34-0-g0aa66717f684
[   12.673313] Backport generated by backports.git v5.10.34-1-0-g7b5533e1
[   12.727305] xt_time: kernel timezone is -0000
[   12.957061] PPP generic driver version 2.4.2
[   12.971883] NET: Registered protocol family 24
[   13.046268] ath10k 5.10 driver, optimized for CT firmware, probing pci device: 0x3c.
[   13.071682] ath10k_pci 0000:00:00.0: enabling device (0000 -> 0002)
[   13.078204] ath10k_pci 0000:00:00.0: pci irq legacy oper_irq_mode 1 irq_mode 0 reset_mode 0
[   13.097921] urngd: v1.0.2 started.
[   13.262642] random: crng init done
[   16.526758] ath10k_pci 0000:00:00.0: qca988x hw2.0 target 0x4100016c chip_id 0x043202ff sub 0000:0000
[   16.536163] ath10k_pci 0000:00:00.0: kconfig debug 0 debugfs 1 tracing 0 dfs 1 testmode 0
[   16.548387] ath10k_pci 0000:00:00.0: firmware ver 10.1-ct-8x-__fW-022-ecad3248 api 2 features wmi-10.x,has-wmi-mgmt-tx,mfp,txstatus-noack,wmi-10.x-CT,ratemask-CT,txrate-CT,get-temp-CT,tx-rc-CT,cust-stats-CT,retry-gt2-CT,txrate2-CT,beacon-cb-CT,wmi-block-ack-CT crc32 3e4cf97f
[   16.984164] ath10k_pci 0000:00:00.0: board_file api 1 bmi_id N/A crc32 bebc7c08
[   17.952514] ath10k_pci 0000:00:00.0: 10.1 wmi init: vdevs: 16  peers: 127  tid: 256
[   22.980831] ath10k_pci 0000:00:00.0: wmi unified ready event not received
[   23.114032] ath10k_pci 0000:00:00.0: could not init core (-145)
[   23.120177] ath10k_pci 0000:00:00.0: could not probe fw (-145)
[   23.165973] ath: phy1: Unable to initialize hardware; initialization status: -5
[   23.173415] ath9k 18100000.wmac: failed to initialize device
[   23.179197] ath9k: probe of 18100000.wmac failed with error -5
[   23.186839] kmodloader: done loading kernel modules from /etc/modules.d/*
[   33.299543] eth1: link up (1000Mbps/Full duplex)
[   33.313159] br-lan: port 1(eth1.1) entered blocking state
[   33.318645] br-lan: port 1(eth1.1) entered disabled state
[   33.324444] device eth1.1 entered promiscuous mode
[   33.329309] device eth1 entered promiscuous mode
[   33.335143] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
[   33.364271] br-lan: port 1(eth1.1) entered blocking state
[   33.369757] br-lan: port 1(eth1.1) entered forwarding state
[   33.443410] Atheros AR8216/AR8236/AR8316 mdio.0:00: Port 1 is up
[   33.449904] Atheros AR8216/AR8236/AR8316 mdio.0:00: Port 4 is up
[   33.457568] eth0: link up (1000Mbps/Full duplex)
[   33.558130] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   34.340988] IPv6: ADDRCONF(NETDEV_CHANGE): br-lan: link becomes ready

Any ideas?