root@opi:~# ifconfig eth0 192.168.133.98/24 up
[   20.322659] Generic PHY 1c30000.ethernet:00: attached PHY driver [Generic PHY] (mii_bus:phy_addr=1c30000.ethernet:00, irq=-1)
[   20.334037] sun8i-emac 1c30000.ethernet: EMAC reset timeout
SIOCSIFFLAGS: Bad address[   20.340047] net eth0: PHY already attached

[   20.346257] Unable to handle kernel NULL pointer dereference at virtual address 0000002c
[   20.354531] pgd = dee90000
[   20.357252] [0000002c] *pgd=5ee61835, *pte=00000000, *ppte=00000000
[   20.363635] Internal error: Oops: 17 [#1] SMP ARM
[   20.368341] Modules linked in:
[   20.371423] CPU: 0 PID: 214 Comm: ifconfig Not tainted 4.6.0-rc1-g1e27c17-dirty #1
[   20.378988] Hardware name: Allwinner sun8i Family
[   20.383698] task: de112f40 ti: ded1e000 task.ti: ded1e000
[   20.389117] PC is at phy_attached_print+0xc/0x90
[   20.393742] LR is at sun8i_emac_open+0x38/0x5dc
[   20.398281] pc : [<c03e2ab0>]    lr : [<c03e62ac>]    psr: 000f0013
[   20.398281] sp : ded1fe00  ip : 00000000  fp : dec9d680
[   20.409753] r10: df603e00  r9 : ffffffbd  r8 : 00000000
[   20.414982] r7 : df642830  r6 : c0632ed8  r5 : 00000000  r4 : df642800
[   20.421508] r3 : 00000000  r2 : 00000000  r1 : 00000000  r0 : 00000000
[   20.428038] Flags: nzcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
[   20.435173] Control: 10c5387d  Table: 5ee9006a  DAC: 00000051
[   20.440920] Process ifconfig (pid: 214, stack limit = 0xded1e210)
[   20.447013] Stack: (0xded1fe00 to 0xded20000)
[   20.451385] fe00: df6e8c00 c03e7aa8 df6e8c00 c047d4e4 00000000 df642800 c03e62ac 00000000
[   20.459570] fe20: 00000000 00000000 00000001 c0632ed8 00001002 00000000 df642800 00000001
[   20.467754] fe40: c0632ed8 df642830 00000000 c04cfc9c df642978 df642800 00001043 df642800
[   20.475939] fe60: 00000001 00001043 00001002 c04cff24 df642800 df64293c 00001002 00000000
[   20.484123] fe80: 00000000 c04cffec ded1feb8 df603e0c beb0cb24 00000000 00000000 c052bb74
[   20.492308] fea0: 00000000 df642800 00008914 df642800 df603e0c dec9d680 30687465 00000000
[   20.500492] fec0: 00000000 00000000 beb01043 ffffffbd ffffffc1 00000000 00000000 00008914
[   20.508676] fee0: beb0cb24 beb0cb24 df3ba000 c0939580 ded1e000 deec1180 0002b3b4 c04b307c
[   20.516862] ff00: beb0cb24 df3ba020 deec1180 00008914 00000004 c01f6004 00000400 dec87000
[   20.525047] ff20: c0940658 00001000 00000001 00000000 defea840 00000000 df6a7180 b6f71000
[   20.533233] ff40: 00000000 00000001 df6a7180 df6a7184 defea688 defea690 defea840 c01caebc
[   20.541418] ff60: 0000007c c01e58d0 00000000 deec1180 beb0cb24 deec1180 00008914 00000004
[   20.549604] ff80: ded1e000 00000000 0002b3b4 c01f6890 0002b8e8 0002b6c4 beb0cbe4 00000036
[   20.557791] ffa0: c0107804 c0107640 0002b8e8 0002b6c4 00000004 00008914 beb0cb24 00001043
[   20.565975] ffc0: 0002b8e8 0002b6c4 beb0cbe4 00000036 00000041 ffffffff b6f75000 0002b3b4
[   20.574161] ffe0: 0002b07c beb0cb14 00012d77 b6eed036 600f0030 00000004 00000000 00000000
[   20.582364] [<c03e2ab0>] (phy_attached_print) from [<c03e62ac>] (sun8i_emac_open+0x38/0x5dc)
[   20.590817] [<c03e62ac>] (sun8i_emac_open) from [<c04cfc9c>] (__dev_open+0xa8/0x10c)
[   20.598572] [<c04cfc9c>] (__dev_open) from [<c04cff24>] (__dev_change_flags+0x94/0x144)
[   20.606587] [<c04cff24>] (__dev_change_flags) from [<c04cffec>] (dev_change_flags+0x18/0x48)
[   20.615038] [<c04cffec>] (dev_change_flags) from [<c052bb74>] (devinet_ioctl+0x694/0x748)
[   20.623228] [<c052bb74>] (devinet_ioctl) from [<c04b307c>] (sock_ioctl+0x208/0x2d4)
[   20.630896] [<c04b307c>] (sock_ioctl) from [<c01f6004>] (do_vfs_ioctl+0x98/0x8f0)
[   20.638390] [<c01f6004>] (do_vfs_ioctl) from [<c01f6890>] (SyS_ioctl+0x34/0x5c)
[   20.645714] [<c01f6890>] (SyS_ioctl) from [<c0107640>] (ret_fast_syscall+0x0/0x3c)
[   20.653292] Code: e8bd8038 e92d000e e92d4010 e24dd014 (e590302c)
[   20.659481] ---[ end trace 39ffb319534b8170 ]---