[13900.016381] Unhandled kernel unaligned access[#1]:
[13900.021285] CPU: 0 PID: 8 Comm: kworker/u2:1 Not tainted 4.1.20 #0
[13900.027740] Workqueue: phy0 ieee80211_ibss_leave [mac80211]
[13900.033427] task: 81841550 ti: 81880000 task.ti: 81880000
[13900.038875] $ 0   : 00000000 1000b800 00000001 00200000
[13900.044336] $ 4   : 4a86b583 00010000 00000000 00000000
[13900.049787] $ 8   : 041a6e1f 815d6e54 819c1289 5a16f70e
[13900.055258] $12   : 193d1c2a 00000fb5 00000000 fde176f8
[13900.060710] $16   : 816b3560 00000001 816b3588 81a99320
[13900.066179] $20   : 81bf7320 818819b8 8169dcd4 80cc18c4
[13900.071639] $24   : 00000000 8001ea88
[13900.077074] $28   : 81880000 818818e0 00000000 801d85bc
[13900.082546] Hi    : 00000004
[13900.085491] Lo    : 0037eeda
[13900.088496] epc   : 8007842c put_page+0x0/0x4c
[13900.093064] ra    : 801d85bc skb_release_data+0xa8/0x10c
[13900.098434] Status: 1000b803 KERNEL EXL IE
[13900.102773] Cause : 00800010
[13900.105719] BadVA : 4a86b583
[13900.108674] PrId  : 00029007 (Broadcom BMIPS3300)
[13900.113424] Modules linked in: ath5k mac80211 ath batman_adv libcrc32c cfg80211 compat crypto_null leds_gpio ehci_platform ehci_hcd gpio_button_hotplug usbcore nls_base usb_common crc16 ssb_hcd aead crc32c_generic crypto_hash
[13900.134142] Process kworker/u2:1 (pid: 8, threadinfo=81880000, task=81841550, tls=00000000)
[13900.142524] Stack : 00000020 00000000 801db418 801dabec 81bb4000 81a99320 00000000 00100100
          00200200 801d8648 00000000 00000001 81bf7320 801db498 80d75500 81b49a74
          0000000a 81a374a0 81bf7320 80cc1850 80cc1800 81bf7320 00000000 00000564
          00000001 81b49ec4 80360000 81bb8800 81bf7320 81bb4400 81bb4000 00000000
          80c8985c 0000009c 81bb8800 81bb4000 81bb4400 80cc1800 8169dcde 00000000
          ...
[13900.179481] Call Trace:
[13900.182065] [<8007842c>] put_page+0x0/0x4c
[13900.186289] [<801d85bc>] skb_release_data+0xa8/0x10c
[13900.191375] [<801d8648>] __kfree_skb+0x28/0xb4
[13900.196032] [<81b49a74>] batadv_dat_drop_broadcast_packet+0x10c/0x138 [batman_adv]
[13900.203827] [<81b49ec4>] batadv_frag_skb_buffer+0x394/0x3d8 [batman_adv]
[13900.210757] [<81b54144>] batadv_recv_frag_packet+0x244/0x2c4 [batman_adv]
[13900.217773] [<81b4e518>] batadv_batman_skb_recv+0x180/0x1f4 [batman_adv]
[13900.224673] [<801e7168>] __netif_receive_skb_core+0x620/0x6e0
[13900.230548] [<801e7ddc>] netif_receive_skb_internal+0x60/0x70
[13900.236426] [<801c0ff0>] b44_poll+0x384/0x44c
[13900.240917] [<801e81c0>] net_rx_action+0x124/0x2f0
[13900.245875] [<80024fa4>] __do_softirq+0x184/0x2b0
[13900.250735] [<80025198>] do_softirq+0x48/0x68
[13900.255247] [<80025248>] __local_bh_enable_ip+0x90/0xb0
[13900.260793] [<80c12084>] ieee80211_get_vht_mask_from_cap+0x1900/0x1b8c [mac80211]
[13900.268516]
[13900.270075]
Code: 00003021  0801e0bc  24a57840 <8c820000> 3042c000  10400003  00801821  0801df83  00000000
[13900.280781] ---[ end trace af00a3cf0771ea56 ]---
[13900.294268] Kernel panic - not syncing: Fatal exception in interrupt
[13900.306101] Rebooting in 3 seconds..