IPv6: ADDRCONF(NETDEV_CHANGE): enp1s9: link becomes ready
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WARNING: CPU: 0 PID: 2183 at lib/dma-debug.c:986 check_sync+0x4bc/0x580()
skge 0000:01:09.0: DMA-API: device driver tries to sync DMA memory it has not allocated [device address=0x00000000ce550040] [size=1536 bytes]
Modules linked in: skge(OF) raid1 nouveau video mxm_wmi i2c_algo_bit drm_kms_helper ttm drm i2c_core wmi
CPU: 0 PID: 2183 Comm: nmap Tainted: GF          O 3.11.0-0.rc4.git4.1.fc20.x86_64 #1
Hardware name: Gigabyte Technology Co., Ltd. M720-US3/M720-US3, BIOS F7n 09/07/2010
 0000000000000009 ffff88012a603c88 ffffffff81723ef6 ffff88012a603cd0
 ffff88012a603cc0 ffffffff8107462d ffff88012837c2b0 0000000000000600
 ffff880128363470 00000000ce550040 ffff8800c0fb3a80 ffff88012a603d20
Call Trace:
 <IRQ>  [<ffffffff81723ef6>] dump_stack+0x54/0x74
 [<ffffffff8107462d>] warn_slowpath_common+0x7d/0xa0
 [<ffffffff8107469c>] warn_slowpath_fmt+0x4c/0x50
 [<ffffffff81392d7c>] check_sync+0x4bc/0x580
 [<ffffffff81392e8b>] debug_dma_sync_single_for_cpu+0x4b/0x50
 [<ffffffff811cf2ad>] ? kmem_cache_alloc+0x10d/0x380
 [<ffffffff810e6b6c>] ? trace_hardirqs_on_caller+0xac/0x1c0
 [<ffffffff815d97d0>] ? build_skb+0x30/0x1d0
 [<ffffffff815db789>] ? __netdev_alloc_skb+0x89/0xf0
 [<ffffffffa01bfe1e>] skge_poll+0x39e/0x9d0 [skge]
 [<ffffffff815edf81>] ? net_rx_action+0xa1/0x380
 [<ffffffff815ee052>] net_rx_action+0x172/0x380
 [<ffffffff8107b4a7>] __do_softirq+0x107/0x410
 [<ffffffff8173873c>] call_softirq+0x1c/0x30
 <EOI>  [<ffffffff8101ba75>] do_softirq+0x85/0xc0
 [<ffffffff81635586>] ? ip_finish_output+0x2f6/0x800
 [<ffffffff8107a29b>] local_bh_enable+0xdb/0xf0
 [<ffffffff81635586>] ip_finish_output+0x2f6/0x800
 [<ffffffff816353c8>] ? ip_finish_output+0x138/0x800
 [<ffffffff8163720c>] ip_output+0x5c/0x100
 [<ffffffff81661a78>] raw_sendmsg+0x8d8/0xc50
 [<ffffffff8130278d>] ? avc_has_perm_flags+0x16d/0x350
 [<ffffffff81302649>] ? avc_has_perm_flags+0x29/0x350
 [<ffffffff810b797f>] ? local_clock+0x5f/0x70
 [<ffffffff810e3fcf>] ? lock_release_holdtime.part.28+0xf/0x1a0
 [<ffffffff816727e7>] inet_sendmsg+0x117/0x230
 [<ffffffff816726d5>] ? inet_sendmsg+0x5/0x230
 [<ffffffff815d0d79>] sock_sendmsg+0x99/0xd0
 [<ffffffff810e346d>] ? trace_hardirqs_off+0xd/0x10
 [<ffffffff810e9738>] ? lock_release_non_nested+0x308/0x350
 [<ffffffff815d12d4>] SYSC_sendto+0x124/0x1d0
 [<ffffffff81736e05>] ? sysret_check+0x22/0x5d
 [<ffffffff810e6bbd>] ? trace_hardirqs_on_caller+0xfd/0x1c0
 [<ffffffff8137b24e>] ? trace_hardirqs_on_thunk+0x3a/0x3f
 [<ffffffff815d243e>] SyS_sendto+0xe/0x10
 [<ffffffff81736dd9>] system_call_fastpath+0x16/0x1b
---[ end trace 9007da55b42056f7 ]---