------------[ cut here ]------------
WARNING: at /build/buildd/linux-2.6.32/net/ipv4/tcp_input.c:2540 tcp_mark_head_lost+0x1d1/0x1f0()
Hardware name: NC643AA-ACJ SG3650IL
Modules linked in: binfmt_misc ppdev snd_hda_codec_realtek fbcon tileblit font bitblit softcursor vga16fb vgastate snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device i915 drm_kms_helper psmouse serio_raw snd drm i2c_algo_bit video output intel_agp soundcore snd_page_alloc agpgart lp parport r8169 mii
Pid: 0, comm: swapper Not tainted 2.6.32-17-generic #26-Ubuntu
Call Trace:
 [<c014c332>] warn_slowpath_common+0x72/0xa0
 [<c04f9f11>] ? tcp_mark_head_lost+0x1d1/0x1f0
 [<c04f9f11>] ? tcp_mark_head_lost+0x1d1/0x1f0
 [<c014c37a>] warn_slowpath_null+0x1a/0x20
 [<c04f9f11>] tcp_mark_head_lost+0x1d1/0x1f0
 [<c04fa0ec>] tcp_update_scoreboard+0x1bc/0x200
 [<c04fea5a>] tcp_fastretrans_alert+0x34a/0xc40
 [<c04ffd7a>] tcp_ack+0x26a/0x640
 [<c0500b57>] tcp_rcv_established+0x4e7/0x670
 [<c0507a2d>] tcp_v4_do_rcv+0xbd/0x130
 [<c0508f61>] tcp_v4_rcv+0x541/0x740
 [<c04ea667>] ip_local_deliver_finish+0xa7/0x270
 [<c04ea8bf>] ip_local_deliver+0x8f/0xa0
 [<c04e9f1b>] ip_rcv_finish+0xeb/0x380
 [<c05696bd>] ? packet_rcv_spkt+0x3d/0x150
 [<c04ea3ce>] ip_rcv+0x21e/0x2e0
 [<c05696bd>] ? packet_rcv_spkt+0x3d/0x150
 [<c04c1727>] netif_receive_skb+0x387/0x570
 [<f80446f1>] rtl8169_rx_interrupt+0x91/0x4d0 [r8169]
 [<f8044c6a>] rtl8169_poll+0x3a/0x1c0 [r8169]
 [<c04c208d>] net_rx_action+0xed/0x1d0
 [<c0152fc8>] __do_softirq+0x98/0x1b0
 [<c019fa34>] ? handle_IRQ_event+0x54/0x150
 [<c015afc0>] ? do_timer+0x20/0x30
 [<c01a2ca9>] ? move_native_irq+0x19/0x50
 [<c0153125>] do_softirq+0x45/0x50
 [<c0153275>] irq_exit+0x65/0x70
 [<c058f035>] do_IRQ+0x55/0xc0
 [<c0103a30>] common_interrupt+0x30/0x40
 [<c010aaa5>] ? mwait_idle+0x55/0xa0
 [<c01021d4>] cpu_idle+0x94/0xd0
 [<c0585f1a>] start_secondary+0xc6/0xc8
---[ end trace 2a03f382b47f8068 ]---