[38868.252388] general protection fault: 0000 [#1] SMP 
[38868.252417] Modules linked in: tun iptable_filter ip_tables ebtable_filter ebtables x_tables bridge stp llc batman_adv(O) libcrc32c x86_pkg_temp_thermal thermal_sys intel_rapl coretemp crct10dif_pclmul crct10dif_common crc32_pclmul ghash_clmulni_intel aesni_intel evdev aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd pcspkr ext4 crc16 mbcache jbd2 xen_blkfront xen_netfront crc32c_intel
[38868.252521] CPU: 0 PID: 7477 Comm: kworker/u32:2 Tainted: G           O  3.16.0-0.bpo.4-amd64 #1 Debian 3.16.7-ckt9-3~deb8u1~bpo70+1
[38868.252553] Workqueue: bat_events batadv_purge_orig [batman_adv]
[38868.252567] task: ffff8800f0df42d0 ti: ffff8800ed9b0000 task.ti: ffff8800ed9b0000
[38868.252579] RIP: e030:[<ffffffffa01632f9>]  [<ffffffffa01632f9>] batadv_frag_list_free+0x39/0x70 [batman_adv]
[38868.252602] RSP: e02b:ffff8800ed9b3d58  EFLAGS: 00010296
[38868.252612] RAX: ffff8801f2d0c490 RBX: ffff8801b74c8ee0 RCX: 0000000000000019
[38868.252623] RDX: dead000000100100 RSI: ffff8800c60f5d00 RDI: ffff8801b74c8ee0
[38868.252636] RBP: dead000000100100 R08: 0000000000000000 R09: ffff880004412000
[38868.252647] R10: ffff8800d13667c0 R11: 0000000000000000 R12: ffff8801f2d0c490
[38868.252658] R13: 000000000000031b R14: fffffffffffffff5 R15: 0000000000000000
[38868.252679] FS:  0000000000000000(0000) GS:ffff8801fea00000(0000) knlGS:ffff8801fea00000
[38868.252691] CS:  e033 DS: 0000 ES: 0000 CR0: 0000000080050033
[38868.252700] CR2: 00007f1a94096000 CR3: 00000001f327d000 CR4: 0000000000042660
[38868.252715] Stack:
[38868.252720]  ffff8801f2d0c400 0000000000000000 ffff880004412c6c ffffffffa015959c
[38868.252737]  ffff8801f429b100 ffff880003fd0340 0000000100931f70 00ff8801f3b91000
[38868.252753]  ffff8800bf089bc0 ffff8801f2d0c4a8 ffff8801f37568c0 ffff880003bac480
[38868.252770] Call Trace:
[38868.252787]  [<ffffffffa015959c>] ? _batadv_purge_orig+0x30c/0x320 [batman_adv]
[38868.252805]  [<ffffffffa01595c5>] ? batadv_purge_orig+0x15/0x40 [batman_adv]
[38868.252822]  [<ffffffff810887dc>] ? process_one_work+0x15c/0x450
[38868.252836]  [<ffffffff81089ce2>] ? worker_thread+0x112/0x510
[38868.252849]  [<ffffffff81089bd0>] ? create_and_start_worker+0x60/0x60
[38868.252865]  [<ffffffff81090681>] ? kthread+0xc1/0xe0
[38868.252879]  [<ffffffff810905c0>] ? flush_kthread_worker+0xb0/0xb0
[38868.252895]  [<ffffffff8154b358>] ? ret_from_fork+0x58/0x90
[38868.252908]  [<ffffffff810905c0>] ? flush_kthread_worker+0xb0/0xb0
[38868.252917] Code: 1f 48 39 df 74 55 48 39 fb 48 8b 2b 75 0a eb 4b 66 90 48 89 eb 48 89 c5 48 8b 7b 18 e8 a1 a7 2d e1 48 8b 13 48 8b 43 08 48 89 df <48> 89 42 08 48 89 10 48 b8 00 01 10 00 00 00 ad de 48 ba 00 02 
[38868.253034] RIP  [<ffffffffa01632f9>] batadv_frag_list_free+0x39/0x70 [batman_adv]
[38868.253054]  RSP <ffff8800ed9b3d58>
[38868.253082] ---[ end trace b61283f0bd282d9e ]---
[38868.253097] Kernel panic - not syncing: Fatal exception in interrupt
[38868.253138] Kernel Offset: 0x0 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffff9fffffff)