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WARNING: at /build/buildd/linux-2.6.38/net/mac80211/rx.c:2881 ieee80211_rx+0xad/0x1d0 [mac80211]()
Hardware name: MacBookPro6,2
Modules linked in: aesni_intel cryptd aes_x86_64 aes_generic binfmt_misc rfcomm sco bnep l2cap vboxnetadp vboxnetflt vboxdrv parport_pc ppdev vesafb snd_hda_codec_hdmi uvcvideo videodev wl(P) btusb lib80211 mbp_nvidia_bl v4l2_compat_ioctl32 arc4 snd_usb_audio snd_usbmidi_lib bluetooth snd_hda_codec_cirrus snd_seq_midi bcm5974 nvidia(P) snd_rawmidi snd_seq_midi_event snd_hda_intel brcm80211(C) joydev snd_seq snd_hda_codec applesmc snd_hwdep snd_pcm input_polldev snd_timer snd_seq_device mac80211 snd cfg80211 soundcore intel_ips snd_page_alloc video coretemp lp parport hid_apple usb_storage firewire_ohci tg3 usbhid hid uas firewire_core crc_itu_t btrfs zlib_deflate libcrc32c
Pid: 23034, comm: kworker/u:0 Tainted: P        WC  2.6.38-8-generic #42-Ubuntu
Call Trace:
 <IRQ>  [<ffffffff81065cef>] ? warn_slowpath_common+0x7f/0xc0
 [<ffffffff81065d4a>] ? warn_slowpath_null+0x1a/0x20
 [<ffffffffa01cb56d>] ? ieee80211_rx+0xad/0x1d0 [mac80211]
 [<ffffffffa01b1c11>] ? ieee80211_tasklet_handler+0xd1/0xe0 [mac80211]
 [<ffffffff8106cc43>] ? tasklet_action+0x73/0x120
 [<ffffffff8106d538>] ? __do_softirq+0xa8/0x1c0
 [<ffffffff81030518>] ? ack_apic_level+0x78/0x1a0
 [<ffffffff8100cf1c>] ? call_softirq+0x1c/0x30
 [<ffffffff8100ea45>] ? do_softirq+0x65/0xa0
 [<ffffffff8106d755>] ? irq_exit+0x85/0x90
 [<ffffffff815caec6>] ? do_IRQ+0x66/0xe0
 [<ffffffff815c3213>] ? ret_from_intr+0x0/0x15
 <EOI>  [<ffffffff812ec01b>] ? crc32_be+0x5b/0xe0
 [<ffffffffa01d0ff3>] ? ieee802_11_parse_elems_crc+0x153/0x420 [mac80211]
 [<ffffffffa01bd127>] ? ieee80211_rx_mgmt_beacon+0x187/0x5b0 [mac80211]
 [<ffffffffa01be127>] ? ieee80211_sta_rx_queued_mgmt+0x287/0x330 [mac80211]
 [<ffffffffa01c145b>] ? ieee80211_iface_work+0x24b/0x340 [mac80211]
 [<ffffffff81055dc1>] ? finish_task_switch+0x41/0xe0
 [<ffffffffa01c1210>] ? ieee80211_iface_work+0x0/0x340 [mac80211]
 [<ffffffff8108269d>] ? process_one_work+0x11d/0x420
 [<ffffffff81083298>] ? worker_thread+0x168/0x360
 [<ffffffff81083130>] ? worker_thread+0x0/0x360
 [<ffffffff810877e6>] ? kthread+0x96/0xa0
 [<ffffffff8100ce24>] ? kernel_thread_helper+0x4/0x10
 [<ffffffff81087750>] ? kthread+0x0/0xa0
 [<ffffffff8100ce20>] ? kernel_thread_helper+0x0/0x10
---[ end trace 54f34e565e93902d ]---