OpenWrt/LEDE Project

  • Status Unconfirmed
  • Percent Complete
    0%
  • Task Type Bug Report
  • Category Base system
  • Assigned To No-one
  • Operating System All
  • Severity Low
  • Priority Very Low
  • Reported Version Trunk
  • Due in Version Undecided
  • Due Date Undecided
  • Private
Attached to Project: OpenWrt/LEDE Project
Opened by pmgp - 30.07.2020

FS#3259 - tplink 710n/v1 unstable AG71xx MII link on ath79

Unstable interface link on tplink 710nd/v1 running trunk/ath79, somewhat similar to what happens on the 841nd/v9.
This is a different site and application and I’ve seen it in at least 4 devices, only on the AG71xx MII mode link.
As before, the only remedy is to go back to ar7x/9x.

[    0.000000] Linux version 5.4.52 (user@debian-c2q-x64) (gcc version 8.4.0 (OpenWrt GCC 8.4.0 r13335-586661018e)) #0 Mon Jul 27 11:02:47 2020
[    0.000000] printk: bootconsole [early0] enabled
[    0.000000] CPU0 revision is: 00019374 (MIPS 24Kc)
[    0.000000] MIPS: machine is TP-Link TL-WR710N v1
[    0.000000] SoC: Atheros AR9330 rev 1
[    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 0x0000000000000000-0x0000000001ffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000000000-0x0000000001ffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000001ffffff]
[    0.000000] On node 0 totalpages: 8192
[    0.000000]   Normal zone: 72 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 8192 pages, LIFO batch: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: 8120
[    0.000000] Kernel command line: console=ttyATH0,115200 rootfstype=squashfs,jffs2
[    0.000000] Dentry cache hash table entries: 4096 (order: 2, 16384 bytes, linear)
[    0.000000] Inode-cache hash table entries: 2048 (order: 1, 8192 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: 25352K/32768K available (4410K kernel code, 178K rwdata, 1064K rodata, 1188K init, 191K bss, 7416K 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+0x32c/0x518 with crng_init=0
[    0.000000] CPU clock: 400.000 MHz
[    0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 9556302233 ns
[    0.000012] sched_clock: 32 bits at 200MHz, resolution 5ns, wraps every 10737418237ns
[    0.007567] Calibrating delay loop... 265.98 BogoMIPS (lpj=531968)
[    0.048076] pid_max: default: 32768 minimum: 301
[    0.052738] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.059500] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.073030] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.081046] futex hash table entries: 256 (order: -1, 3072 bytes, linear)
[    0.087686] pinctrl core: initialized pinctrl subsystem
[    0.093970] NET: Registered protocol family 16
[    0.145092] clocksource: Switched to clocksource MIPS
[    0.150354] NET: Registered protocol family 2
[    0.154408] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear)
[    0.161232] TCP established hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.168483] TCP bind hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.175216] TCP: Hash tables configured (established 1024 bind 1024)
[    0.181504] UDP hash table entries: 256 (order: 0, 4096 bytes, linear)
[    0.187584] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes, linear)
[    0.194624] NET: Registered protocol family 1
[    0.198407] PCI: CLS 0 bytes, default 32
[    0.207582] workingset: timestamp_bits=14 max_order=13 bucket_order=0
[    0.223507] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.227772] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[    0.257826] pinctrl-single 18040028.pinmux: 64 pins, size 8
[    0.263222] Serial: 8250/16550 driver, 1 ports, IRQ sharing disabled
[    0.269215] 18020000.uart: ttyATH0 at MMIO 0x18020000 (irq = 9, base_baud = 1562500) is a AR933X UART
[    0.277209] printk: console [ttyATH0] enabled
[    0.285410] printk: bootconsole [early0] disabled
[    0.316660] spi-nor spi0.0: s25fl064k (8192 Kbytes)
[    0.320172] 3 fixed-partitions partitions found on MTD device spi0.0
[    0.326435] Creating 3 MTD partitions on "spi0.0":
[    0.331235] 0x000000000000-0x000000020000 : "u-boot"
[    0.337670] 0x000000020000-0x0000007f0000 : "firmware"
[    0.345643] 2 tplink-fw partitions found on MTD device firmware
[    0.350179] Creating 2 MTD partitions on "firmware":
[    0.355091] 0x000000000000-0x0000001c6f86 : "kernel"
[    0.361530] 0x0000001c6f88-0x0000007d0000 : "rootfs"
[    0.366344] mtd: device 3 (rootfs) set to be root filesystem
[    0.373484] 1 squashfs-split partitions found on MTD device rootfs
[    0.378290] 0x000000590000-0x0000007d0000 : "rootfs_data"
[    0.384990] 0x0000007f0000-0x000000800000 : "art"
[    0.392723] libphy: Fixed MDIO Bus: probed
[    0.738221] ag71xx 19000000.eth: Could not connect to PHY device. Deferring probe.
[    1.077080] random: fast init done
[    1.373576] libphy: ag71xx_mdio: probed
[    1.376944] libphy: ar8xxx-mdio: probed
[    1.383159] switch0: Atheros AR724X/AR933X built-in rev. 2 switch registered on mdio.0
[    1.423296] ag71xx 1a000000.eth: connected to PHY at fixed-0:00 [uid=00000000, driver=Generic PHY]
[    1.431836] eth0: Atheros AG71xx at 0xba000000, irq 5, mode: gmii
[    1.437312] i2c /dev entries driver
[    1.442197] NET: Registered protocol family 17
[    1.445386] 8021q: 802.1Q VLAN Support v1.8
[    1.770756] ag71xx 19000000.eth: connected to PHY at mdio.0:1f:04 [uid=004dd041, driver=Generic PHY]
[    1.779474] eth1: Atheros AG71xx at 0xb9000000, irq 4, mode: mii
[    1.794203] VFS: Mounted root (squashfs filesystem) readonly on device 31:3.
[    1.808953] Freeing unused kernel memory: 1188K
[    1.812060] This architecture does not have kernel memory protection.
[    1.818458] Run /sbin/init as init process
[    2.751408] init: Console is alive
[    2.753865] init: - watchdog -
[    4.550131] kmodloader: loading kernel modules from /etc/modules-boot.d/*
[    4.666498] usbcore: registered new interface driver usbfs
[    4.670708] usbcore: registered new interface driver hub
[    4.676009] usbcore: registered new device driver usb
[    4.692860] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    4.711956] ci_hdrc ci_hdrc.0: EHCI Host Controller
[    4.715527] ci_hdrc ci_hdrc.0: new USB bus registered, assigned bus number 1
[    4.737101] ci_hdrc ci_hdrc.0: USB 2.0 started, EHCI 1.00
[    4.742312] hub 1-0:1.0: USB hub found
[    4.745499] hub 1-0:1.0: 1 port detected
[    4.750951] kmodloader: done loading kernel modules from /etc/modules-boot.d/*
[    4.767431] init: - preinit -
[    5.761341] random: procd: uninitialized urandom read (4 bytes read)
[    6.147348] random: jshn: uninitialized urandom read (4 bytes read)
[    6.335446] random: jshn: uninitialized urandom read (4 bytes read)
[    6.702972] eth0: link up (1000Mbps/Full duplex)
[   11.082679] jffs2: notice: (522) jffs2_build_xattr_subsystem: complete building xattr subsystem, 20 of xdatum (10 unchecked, 4 orphan) and 25 of xref (4 dead, 0 orphan) found.
[   11.099094] mount_root: switching to jffs2 overlay
[   11.139147] overlayfs: upper fs does not support tmpfile.
[   11.152849] urandom-seed: Seeding with /etc/urandom.seed
[   11.268016] eth0: link down
[   11.288888] procd: - early -
[   11.290569] procd: - watchdog -
[   12.072544] procd: - watchdog -
[   12.074720] procd: - ubus -
[   12.448999] urandom_read: 5 callbacks suppressed
[   12.449012] random: ubusd: uninitialized urandom read (4 bytes read)
[   12.461048] random: ubusd: uninitialized urandom read (4 bytes read)
[   12.468285] procd: - init -
[   13.816721] kmodloader: loading kernel modules from /etc/modules.d/*
[   14.174573] xt_time: kernel timezone is -0000
[   14.249336] PPP generic driver version 2.4.2
[   14.262661] NET: Registered protocol family 24
[   14.490477] kmodloader: done loading kernel modules from /etc/modules.d/*
[   14.770114] urngd: v1.0.2 started.
[   15.359744] random: crng init done
[   24.218809] eth1: link up (100Mbps/Full duplex)
[   30.505247] eth0: link up (1000Mbps/Full duplex)
[   30.509411] br-lan: port 1(eth0) entered blocking state
[   30.513750] br-lan: port 1(eth0) entered disabled state
[   30.519318] device eth0 entered promiscuous mode
[   30.543857] br-lan: port 1(eth0) entered blocking state
[   30.547769] br-lan: port 1(eth0) entered forwarding state
[   30.579295] eth1: link down
[   30.705236] br-lan: port 2(eth1) entered blocking state
[   30.709102] br-lan: port 2(eth1) entered disabled state
[   30.714700] device eth1 entered promiscuous mode
[   30.719111] br-lan: port 2(eth1) entered blocking state
[   30.724077] br-lan: port 2(eth1) entered forwarding state
[   31.520146] br-lan: port 2(eth1) entered disabled state
[   32.683332] eth1: link up (100Mbps/Full duplex)
[   32.688162] br-lan: port 2(eth1) entered blocking state
[   32.692067] br-lan: port 2(eth1) entered forwarding state
[ 1240.055050] eth1: link down
[ 1240.057212] br-lan: port 2(eth1) entered disabled state
[ 1244.152431] eth1: link up (100Mbps/Full duplex)
[ 1244.156285] br-lan: port 2(eth1) entered blocking state
[ 1244.160833] br-lan: port 2(eth1) entered forwarding state
[ 1247.222912] eth1: link down
[ 1247.225052] br-lan: port 2(eth1) entered disabled state
[ 1248.248284] eth1: link up (100Mbps/Full duplex)
[ 1248.251864] br-lan: port 2(eth1) entered blocking state
[ 1248.256678] br-lan: port 2(eth1) entered forwarding state
[ 1382.393098] eth1: link down
[ 1382.395847] br-lan: port 2(eth1) entered disabled state
[ 1383.416100] eth1: link up (100Mbps/Full duplex)
[ 1383.419727] br-lan: port 2(eth1) entered blocking state
[ 1383.424497] br-lan: port 2(eth1) entered forwarding state
[ 1385.462695] eth1: link down
[ 1385.464853] br-lan: port 2(eth1) entered disabled state
[ 1386.488096] eth1: link up (100Mbps/Full duplex)
[ 1386.491671] br-lan: port 2(eth1) entered blocking state
[ 1386.496495] br-lan: port 2(eth1) entered forwarding state
[ 1399.798672] eth1: link down
[ 1399.801015] br-lan: port 2(eth1) entered disabled state
[ 1401.848048] eth1: link up (100Mbps/Full duplex)
[ 1401.851629] br-lan: port 2(eth1) entered blocking state
[ 1401.856447] br-lan: port 2(eth1) entered forwarding state
[ 1420.278752] eth1: link down
[ 1420.280905] br-lan: port 2(eth1) entered disabled state
[ 1421.303979] eth1: link up (100Mbps/Full duplex)
[ 1421.307546] br-lan: port 2(eth1) entered blocking state
[ 1421.312377] br-lan: port 2(eth1) entered forwarding state
pmgp commented on 01.08.2020 12:55

@ Franco Castillo

I'm running trunk on a few routers that have no link problems whatsoever (archer C6, 1043NDv1, 2543ND), and the difference to those who have problems (710Nv1, 841NDv9, and your C60) is that the ethernet is external (Gbit). The problem ones have it internal to the SoC (100Mbit), so it's probably the driver.

Franco Castillo commented on 03.08.2020 02:50

Are you saying the problem is caused by connecting to a 1Gbps device? Because that is my case. I have the WAN interface connected to the cable modem which is 1 Gbps.

pmgp commented on 03.08.2020 17:45

No, I'm saying that I only see this problem on devices that use the SoC internal PHY, the others have an external switch (and are, coincidentally or not, gigabit).

Franco Castillo commented on 03.08.2020 20:28

And how do I know if my router's switch is internal or external?

pmgp commented on 03.08.2020 20:50

It's internal when you have the same reference for the cpu and the switch:
https://openwrt.org/toh/hwdata/tp-link/tp-link_archer_c60_v2

CPU:Qualcomm Atheros QCA9561
Switch:Qualcomm Atheros QCA9561

Franco Castillo commented on 03.08.2020 21:01

Yes, I am intuiting that it was internal by the same name. So is it a driver problem?

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