------------[ cut here ]------------
WARNING: at /build/buildd/linux-2.6.31/net/mac80211/agg-tx.c:145 ___ieee80211_stop_tx_ba_session+0x91/0xa0 [mac80211]()
Hardware name: 89185QG
Modules linked in: nfs lockd nfs_acl auth_rpcgss sunrpc cryptd aes_x86_64 aes_generic binfmt_misc ppdev bridge stp bnep arc4 snd_hda_codec_analog btusb ecb snd_hda_intel snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event iwlagn snd_seq iwlcore snd_timer joydev pcmcia hdaps snd_seq_device psmouse iptable_filter thinkpad_acpi mac80211 sdhci_pci input_polldev snd ip_tables yenta_socket sdhci rsrc_nonstatic video soundcore led_class pcmcia_core ricoh_mmc output intel_agp nvram x_tables serio_raw snd_page_alloc cfg80211 lp parport nvidia(P) ohci1394 ieee1394 e1000e
Pid: 0, comm: swapper Tainted: P           2.6.31-11-generic #36-Ubuntu
Call Trace:
 <IRQ>  [<ffffffff81059778>] warn_slowpath_common+0x78/0xb0
 [<ffffffff810597bf>] warn_slowpath_null+0xf/0x20
 [<ffffffffa0b1e2f1>] ___ieee80211_stop_tx_ba_session+0x91/0xa0 [mac80211]
 [<ffffffffa0b1e4f6>] sta_addba_resp_timer_expired+0x56/0x90 [mac80211]
 [<ffffffff81065d6c>] run_timer_softirq+0x16c/0x270
 [<ffffffff810604ed>] __do_softirq+0xbd/0x200
 [<ffffffff8101318c>] call_softirq+0x1c/0x30
 [<ffffffff81014945>] do_softirq+0x55/0x90
 [<ffffffff81060255>] irq_exit+0x85/0x90
 [<ffffffff81014080>] do_IRQ+0x70/0xe0
 [<ffffffff810129d3>] ret_from_intr+0x0/0x11
 <EOI>  [<ffffffff812d2ee9>] ? acpi_idle_enter_bm+0x28b/0x2bf
 [<ffffffff812d2ee2>] ? acpi_idle_enter_bm+0x284/0x2bf
 [<ffffffff813f911b>] ? cpuidle_idle_call+0x9b/0xf0
 [<ffffffff81010e12>] ? cpu_idle+0xb2/0x100
 [<ffffffff8150f8e6>] ? rest_init+0x66/0x70
 [<ffffffff81830d47>] ? start_kernel+0x352/0x35b
 [<ffffffff8183029a>] ? x86_64_start_reservations+0x125/0x129
 [<ffffffff81830398>] ? x86_64_start_kernel+0xfa/0x109
---[ end trace 8b386c0183bbf52a ]---