My wlan can't use ipv6
[ 0.000000] Linux version 4.4.74 (wa@ubuntu) (gcc version 5.4.0 (LEDE GCC 5.4.0 r4504-eaaba94) ) #0 Fri Jun 30 10:14:10 2017
[ 0.000000] Board has DDR2
[ 0.000000] Analog PMU set to hw control
[ 0.000000] Digital PMU set to hw control
[ 0.000000] SoC Type: MediaTek MT7620A ver:2 eco:6
[ 0.000000] bootconsole [early0] enabled
[ 0.000000] CPU0 revision is: 00019650 (MIPS 24KEc)
[ 0.000000] MIPS: machine is Lenovo Y1
[ 0.000000] Determined physical RAM map:
[ 0.000000] memory: 08000000 @ 00000000 (usable)
[ 0.000000] Initrd not found or empty - disabling initrd
[ 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 803903b0, node_mem_map 81000000
[ 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] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
[ 0.000000] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=132768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512
[ 0.000000] Kernel command line: console=ttyS0,115200 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=0001a26a
[ 0.000000] Readback ErrCtl register=0001a26a
[ 0.000000] Memory: 125740K/131072K available (2913K kernel code, 143K rwdata, 696K rodata, 144K init, 203K bss, 5332K reserved, 0K cma-reserved)
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] NR_IRQS:256
[ 0.000000] CPU Clock: 580MHz
[ 0.000000] clocksource: systick: mask: 0xffff max_cycles: 0xffff, max_idle_ns: 583261500 ns
[ 0.000000] systick: enable autosleep mode
[ 0.000000] systick: running - mult: 214748, shift: 32
[ 0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 6590553264 ns
[ 0.000011] sched_clock: 32 bits at 290MHz, resolution 3ns, wraps every 7405115902ns
[ 0.007928] Calibrating delay loop... 385.84 BogoMIPS (lpj=1929216)
[ 0.070551] pid_max: default: 32768 minimum: 301
[ 0.075389] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.082064] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.096067] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.106077] futex hash table entries: 256 (order: -1, 3072 bytes)
[ 0.112426] pinctrl core: initialized pinctrl subsystem
[ 0.118422] NET: Registered protocol family 16
[ 0.386268] PCI host bridge /pcie@10140000 ranges:
[ 0.391102] MEM 0x0000000020000000..0x000000002fffffff
[ 0.396395] IO 0x0000000010160000..0x000000001016ffff
[ 0.410394] rt2880_gpio 10000600.gpio: registering 24 gpios
[ 0.416096] rt2880_gpio 10000600.gpio: registering 24 irq handlers
[ 0.422515] rt2880_gpio 10000660.gpio: registering 32 gpios
[ 0.428167] rt2880_gpio 10000660.gpio: registering 32 irq handlers
[ 0.434594] rt2880_gpio 10000688.gpio: registering 1 gpios
[ 0.440159] rt2880_gpio 10000688.gpio: registering 1 irq handlers
[ 0.447187] PCI host bridge to bus 0000:00
[ 0.451339] pci_bus 0000:00: root bus resource [mem 0x20000000-0x2fffffff]
[ 0.458281] pci_bus 0000:00: root bus resource [io 0xffffffff]
[ 0.464317] pci_bus 0000:00: root bus resource [??? 0x00000000 flags 0x0]
[ 0.471211] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
[ 0.479319] pci 0000:00:00.0: [1814:0801] type 01 class 0x060400
[ 0.479367] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x7fffffff]
[ 0.479390] pci 0000:00:00.0: reg 0x14: [mem 0x00000000-0x0000ffff]
[ 0.479482] pci 0000:00:00.0: supports D1
[ 0.479500] pci 0000:00:00.0: PME# supported from D0 D1 D3hot
[ 0.479789] pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[ 0.488059] pci 0000:01:00.0: [14c3:7662] type 00 class 0x028000
[ 0.488136] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x000fffff 64bit]
[ 0.488199] pci 0000:01:00.0: reg 0x30: [mem 0x00000000-0x0000ffff pref]
[ 0.488290] pci 0000:01:00.0: PME# supported from D0 D3hot D3cold
[ 0.488567] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01
[ 0.488596] pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 01
[ 0.488652] pci 0000:00:00.0: BAR 0: no space for [mem size 0x80000000]
[ 0.495363] pci 0000:00:00.0: BAR 0: failed to assign [mem size 0x80000000]
[ 0.502405] pci 0000:00:00.0: BAR 8: assigned [mem 0x20000000-0x200fffff]
[ 0.509322] pci 0000:00:00.0: BAR 9: assigned [mem 0x20100000-0x201fffff pref]
[ 0.516658] pci 0000:00:00.0: BAR 1: assigned [mem 0x20200000-0x2020ffff]
[ 0.523589] pci 0000:01:00.0: BAR 0: assigned [mem 0x20000000-0x200fffff 64bit]
[ 0.531019] pci 0000:01:00.0: BAR 6: assigned [mem 0x20100000-0x2010ffff pref]
[ 0.538365] pci 0000:00:00.0: PCI bridge to [bus 01]
[ 0.543403] pci 0000:00:00.0: bridge window [mem 0x20000000-0x200fffff]
[ 0.550319] pci 0000:00:00.0: bridge window [mem 0x20100000-0x201fffff pref]
[ 0.557673] pci 0000:00:00.0: card - bus=0x0, slot = 0x0 irq=0
[ 0.563611] pci 0000:01:00.0: card - bus=0x1, slot = 0x0 irq=4
[ 0.570553] clocksource: Switched to clocksource systick
[ 0.577472] NET: Registered protocol family 2
[ 0.582790] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.589834] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.596348] TCP: Hash tables configured (established 1024 bind 1024)
[ 0.602868] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 0.608762] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 0.615440] NET: Registered protocol family 1
[ 0.619905] PCI: CLS 80 bytes, default 32
[ 0.624570] rt-timer 10000100.timer: maximum frequency is 1220Hz
[ 0.631768] Crashlog allocated RAM at address 0x3f00000
[ 0.653033] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.658916] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[ 0.671831] io scheduler noop registered
[ 0.675766] io scheduler deadline registered (default)
[ 0.681318] ralink-usb-phy usbphy: invalid resource
[ 0.686934] Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled
[ 0.694629] console [ttyS0] disabled
[ 0.698241] 10000c00.uartlite: ttyS0 at MMIO 0x10000c00 (irq = 20, base_baud = 2500000) is a Palmchip BK-3103
[ 0.708375] console [ttyS0] enabled
[ 0.715408] bootconsole [early0] disabled
[ 0.728339] spi spi0.0: force spi mode3
[ 0.732888] m25p80 spi0.0: w25q128 (16384 Kbytes)
[ 0.737727] 4 ofpart partitions found on MTD device spi0.0
[ 0.743368] Creating 4 MTD partitions on "spi0.0":
[ 0.748264] 0x000000000000-0x000000030000 : "u-boot"
[ 0.755173] 0x000000030000-0x000000040000 : "u-boot-env"
[ 0.762511] 0x000000040000-0x000000050000 : "factory"
[ 0.769497] 0x000000050000-0x000001000000 : "firmware"
[ 2.098562] 2 uimage-fw partitions found on MTD device firmware
[ 2.104661] 0x000000050000-0x000000184a57 : "kernel"
[ 2.111488] 0x000000184a57-0x000001000000 : "rootfs"
[ 2.118366] mtd: device 5 (rootfs) set to be root filesystem
[ 2.124368] 1 squashfs-split partitions found on MTD device rootfs
[ 2.130701] 0x0000005c1000-0x000001000000 : "rootfs_data"
[ 2.141270] gsw: setting port4 to ephy mode
[ 2.145589] mtk_soc_eth 10100000.ethernet eth0 (uninitialized): port 4 link up (100Mbps/Full duplex)
[ 2.155121] mtk_soc_eth 10100000.ethernet: loaded mt7620 driver
[ 2.162002] mtk_soc_eth 10100000.ethernet eth0: mediatek frame engine at 0xb0100000, irq 5
[ 2.171046] rt2880_wdt 10000120.watchdog: Initialized
[ 2.177760] NET: Registered protocol family 10
[ 2.186831] NET: Registered protocol family 17
[ 2.191539] bridge: automatic filtering via arp/ip/ip6tables has been deprecated. Update your scripts to load br_netfilter if you need this.
[ 2.204437] 8021q: 802.1Q VLAN Support v1.8
[ 2.226726] VFS: Mounted root (squashfs filesystem) readonly on device 31:5.
[ 2.234776] Freeing unused kernel memory: 144K (803ac000 - 803d0000)
[ 4.634157] init: Console is alive
[ 4.637850] init: - watchdog -
[ 6.506603] kmodloader: loading kernel modules from /etc/modules-boot.d/
[ 6.593022] kmodloader: done loading kernel modules from /etc/modules-boot.d/*
[ 6.602246] init: - preinit -
[ 7.593828] 8021q: adding VLAN 0 to HW filter on device eth0
[ 7.758419] random: procd: uninitialized urandom read (4 bytes read, 12 bits of entropy available)
[ 9.602069] jffs2: notice: (322) jffs2_build_xattr_subsystem: complete building xattr subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.
[ 9.620529] mount_root: switching to jffs2 overlay
[ 9.648530] urandom-seed: Seeding with /etc/urandom.seed
[ 9.881943] procd: - early -
[ 9.884999] procd: - watchdog -
[ 10.079502] procd: - watchdog -
[ 10.082999] procd: - ubus -
[ 10.177263] random: ubusd: uninitialized urandom read (4 bytes read, 23 bits of entropy available)
[ 10.187018] random: ubusd: uninitialized urandom read (4 bytes read, 23 bits of entropy available)
[ 10.196364] random: ubusd: uninitialized urandom read (4 bytes read, 23 bits of entropy available)
[ 10.205825] random: ubusd: uninitialized urandom read (4 bytes read, 23 bits of entropy available)
[ 10.215112] random: ubusd: uninitialized urandom read (4 bytes read, 23 bits of entropy available)
[ 10.224917] random: ubusd: uninitialized urandom read (4 bytes read, 23 bits of entropy available)
[ 10.234375] random: ubusd: uninitialized urandom read (4 bytes read, 23 bits of entropy available)
[ 10.243990] procd: - init -
[ 10.958363] kmodloader: loading kernel modules from /etc/modules.d/*
[ 11.042678] tun: Universal TUN/TAP device driver, 1.6
[ 11.047846] tun: (C) 1999-2004 Max Krasnyansky maxk@qualcomm.com
[ 11.059438] ip6_tables: (C) 2000-2006 Netfilter Core Team
[ 11.079554] nf_conntrack version 0.5.0 (1966 buckets, 7864 max)
[ 11.116923] Netfilter messages via NETLINK v0.30.
[ 11.125137] ip_set: protocol 6
[ 11.165141] Loading modules backported from Linux version wt-2017-01-31-0-ge882dff19e7f
[ 11.173391] Backport generated by backports.git backports-20160324-13-g24da7d3c
[ 11.240310] mt76x2e 0000:01:00.0: ASIC revision: 76120044
[ 11.251160] mt76x2e 0000:01:00.0: ROM patch already applied
[ 11.258641] mt76x2e 0000:01:00.0: Firmware Version: 0.0.00
[ 11.264311] mt76x2e 0000:01:00.0: Build: 1
[ 11.268495] mt76x2e 0000:01:00.0: Build Time: 201507311614____
[ 11.279946] mt76x2e 0000:01:00.0: Firmware running!
[ 11.285822] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
[ 11.371981] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 11.447116] xt_time: kernel timezone is -0000
[ 11.470039] PPP generic driver version 2.4.2
[ 11.486272] NET: Registered protocol family 24
[ 11.580614] rt2800_wmac 10180000.wmac: loaded eeprom from mtd device "factory"
[ 11.588010] ieee80211 phy1: rt2x00_set_rt: Info - RT chipset 6352, rev 0500 detected
[ 11.595941] ieee80211 phy1: rt2x00_set_rf: Info - RF chipset 7620 detected
[ 11.603695] ieee80211 phy1: Selected rate control algorithm 'minstrel_ht'
[ 11.619069] kmodloader: done loading kernel modules from /etc/modules.d/*
[ 13.971694] random: jshn: uninitialized urandom read (4 bytes read, 29 bits of entropy available)
[ 14.069316] random: ubusd: uninitialized urandom read (4 bytes read, 29 bits of entropy available)
[ 20.019249] 8021q: adding VLAN 0 to HW filter on device eth0
[ 20.043568] device eth0 entered promiscuous mode
[ 20.049767] device eth0.1 entered promiscuous mode
[ 20.063236] br-lan: port 1(eth0.1) entered forwarding state
[ 20.068972] br-lan: port 1(eth0.1) entered forwarding state
[ 22.059996] br-lan: port 1(eth0.1) entered forwarding state
[ 24.685375] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
[ 24.741706] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 24.757262] device wlan1 entered promiscuous mode
[ 24.771584] device wlan0 entered promiscuous mode
[ 25.805662] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[ 25.812429] br-lan: port 2(wlan1) entered forwarding state
[ 25.818085] br-lan: port 2(wlan1) entered forwarding state
[ 25.930226] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 25.936966] br-lan: port 3(wlan0) entered forwarding state
[ 25.942630] br-lan: port 3(wlan0) entered forwarding state
[ 26.310958] br-lan: port 2(wlan1) entered forwarding state
[ 26.700963] br-lan: port 3(wlan0) entered forwarding state
[ 42.927577] random: nonblocking pool is initialized
[ 991.894840] mtk_soc_eth 10100000.ethernet eth0: port 0 link up (100Mbps/Full duplex)
[ 992.369448] mtk_soc_eth 10100000.ethernet eth0: port 0 link down
[ 993.218158] mtk_soc_eth 10100000.ethernet eth0: port 0 link up (100Mbps/Full duplex)
[ 1111.997425] mtk_soc_eth 10100000.ethernet eth0: port 0 link down
[ 1140.286390] mtk_soc_eth 10100000.ethernet eth0: port 0 link up (100Mbps/Full duplex)
[ 1234.321911] mtk_soc_eth 10100000.ethernet eth0: port 0 link down
[ 1348.048647] mtk_soc_eth 10100000.ethernet eth0: port 0 link up (100Mbps/Full duplex)
