------------[ cut here ]------------
WARNING: at /build/buildd/linux-2.6.35/include/net/mac80211.h:2601 rate_control_send_low+0xc2/0x140 [mac80211]()
Hardware name: 2912AE7
Modules linked in: aes_i586 aes_generic parport_pc ppdev rfcomm binfmt_misc joydev sco bnep l2cap snd_hda_codec_nvhdmi snd_hda_codec_conexant arc4 qcserial usb_wwan usbserial snd_hda_intel thinkpad_acpi iwlagn snd_hda_codec snd_seq_midi snd_rawmidi snd_seq_midi_event snd_hwdep psmouse serio_raw snd_pcm iwlcore mac80211 uvcvideo btusb snd_page_alloc snd_seq snd_timer snd_seq_device snd tpm_tis nvidia(P) soundcore videodev v4l1_compat cfg80211 video bluetooth intel_ips output tpm intel_agp nvram tpm_bios lp agpgart parport usbhid hid e1000e ahci libahci sdhci_pci sdhci led_class
Pid: 948, comm: phy0 Tainted: P        W   2.6.35-22-generic-pae #33-Ubuntu
Call Trace:
 [<c01527b2>] warn_slowpath_common+0x72/0xa0
 [<f9f595a2>] ? rate_control_send_low+0xc2/0x140 [mac80211]
 [<f9f595a2>] ? rate_control_send_low+0xc2/0x140 [mac80211]
 [<c0152802>] warn_slowpath_null+0x22/0x30
 [<f9f595a2>] rate_control_send_low+0xc2/0x140 [mac80211]
 [<f87d16a2>] rs_get_rate+0x52/0x1b0 [iwlagn]
 [<f9f593c5>] rate_control_get_rate+0x95/0x1b0 [mac80211]
 [<c0133558>] ? default_spin_lock_flags+0x8/0x10
 [<f9f61966>] ieee80211_tx_h_rate_ctrl+0x1c6/0x490 [mac80211]
 [<c05efb6f>] ? _raw_spin_lock_irqsave+0x2f/0x50
 [<c0160bbc>] ? lock_timer_base+0x2c/0x60
 [<f9f62197>] invoke_tx_handlers+0x307/0x420 [mac80211]
 [<f9f6230b>] ieee80211_tx+0x5b/0x1a0 [mac80211]
 [<c05123b0>] ? skb_release_data+0x70/0xa0
 [<c0513e15>] ? pskb_expand_head+0x115/0x1a0
 [<f9f624f9>] ieee80211_xmit+0xa9/0x1e0 [mac80211]
 [<f9f62675>] ieee80211_tx_skb+0x45/0x60 [mac80211]
 [<f9f65e09>] ieee80211_send_probe_req+0xa9/0xe0 [mac80211]
 [<f9f53845>] ieee80211_mgd_probe_ap_send+0x45/0x70 [mac80211]
 [<f9f53946>] ieee80211_mgd_probe_ap+0xd6/0xe0 [mac80211]
 [<f9f54733>] ieee80211_beacon_connection_loss_work+0x23/0x40 [mac80211]
 [<c0169d3e>] run_workqueue+0x8e/0x150
 [<f9f54710>] ? ieee80211_beacon_connection_loss_work+0x0/0x40 [mac80211]
 [<c0169e84>] worker_thread+0x84/0xe0
 [<c016e100>] ? autoremove_wake_function+0x0/0x50
 [<c0169e00>] ? worker_thread+0x0/0xe0
 [<c016dcd4>] kthread+0x74/0x80
 [<c016dc60>] ? kthread+0x0/0x80
 [<c010993e>] kernel_thread_helper+0x6/0x10
---[ end trace 929933f58fadb775 ]---