The same similar stack:

Nov 11 20:46:45 karolszk-lap kernel: [47012.760257] ------------[ cut here ]------------
Nov 11 20:46:45 karolszk-lap kernel: [47012.760283] WARNING: at /build/buildd/linux-3.2.0/net/mac80211/util.c:537 ieee80211_can_queue_work.isra.6+0x37/0x40 [mac80211]()
Nov 11 20:46:45 karolszk-lap kernel: [47012.760285] Hardware name: Latitude E6510
Nov 11 20:46:45 karolszk-lap kernel: [47012.760286] queueing ieee80211 work while going to suspend
Nov 11 20:46:45 karolszk-lap kernel: [47012.760288] Modules linked in: msr lrw gf128mul dm_crypt pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) nouveau ttm drm_kms_helper drm i2c_algo_bit mxm_wmi joydev rfcomm bnep binfmt_misc snd_hda_codec_hdmi arc4 ppdev dell_wmi sparse_keymap pcmcia dell_laptop dcdbas btusb bluetooth psmouse(O) uvcvideo videodev snd_hda_codec_idt serio_raw i7core_edac mei(C) edac_core iwlwifi mac80211 yenta_socket pcmcia_rsrc pcmcia_core snd_hda_intel snd_hda_codec snd_hwdep cfg80211 parport_pc snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device wmi snd mac_hid soundcore snd_page_alloc video coretemp lp parport usbhid hid firewire_ohci firewire_core sdhci_pci sdhci crc_itu_t e1000e
Nov 11 20:46:45 karolszk-lap kernel: [47012.760347] Pid: 0, comm: swapper/0 Tainted: G         C O 3.2.0-32-generic-pae #51-Ubuntu
Nov 11 20:46:45 karolszk-lap kernel: [47012.760349] Call Trace:
Nov 11 20:46:45 karolszk-lap kernel: [47012.760359]  [<c105a2c2>] warn_slowpath_common+0x72/0xa0
Nov 11 20:46:45 karolszk-lap kernel: [47012.760380]  [<f8c199d7>] ? ieee80211_can_queue_work.isra.6+0x37/0x40 [mac80211]
Nov 11 20:46:45 karolszk-lap kernel: [47012.760394]  [<f8c199d7>] ? ieee80211_can_queue_work.isra.6+0x37/0x40 [mac80211]
Nov 11 20:46:45 karolszk-lap kernel: [47012.760397]  [<c105a393>] warn_slowpath_fmt+0x33/0x40
Nov 11 20:46:45 karolszk-lap kernel: [47012.760412]  [<f8c199d7>] ieee80211_can_queue_work.isra.6+0x37/0x40 [mac80211]
Nov 11 20:46:45 karolszk-lap kernel: [47012.760427]  [<f8c19a77>] ieee80211_queue_work+0x27/0x50 [mac80211]
Nov 11 20:46:45 karolszk-lap kernel: [47012.760439]  [<f8c02c75>] ieee80211_sta_timer+0x35/0x40 [mac80211]
Nov 11 20:46:45 karolszk-lap kernel: [47012.760443]  [<c106796f>] call_timer_fn+0x2f/0x110
Nov 11 20:46:45 karolszk-lap kernel: [47012.760455]  [<f8c02c40>] ? ieee80211_sta_bcn_mon_timer+0x30/0x30 [mac80211]
Nov 11 20:46:45 karolszk-lap kernel: [47012.760457]  [<c106906b>] run_timer_softirq+0xeb/0x210
Nov 11 20:46:45 karolszk-lap kernel: [47012.760469]  [<f8c02c40>] ? ieee80211_sta_bcn_mon_timer+0x30/0x30 [mac80211]
Nov 11 20:46:45 karolszk-lap kernel: [47012.760472]  [<c1060f00>] ? local_bh_enable_ip+0x90/0x90
Nov 11 20:46:45 karolszk-lap kernel: [47012.760474]  [<c1060f81>] __do_softirq+0x81/0x1a0
Nov 11 20:46:45 karolszk-lap kernel: [47012.760478]  [<c1060f00>] ? local_bh_enable_ip+0x90/0x90
Nov 11 20:46:45 karolszk-lap kernel: [47012.760479]  <IRQ>  [<c10612c6>] ? irq_exit+0x76/0xa0
Nov 11 20:46:45 karolszk-lap kernel: [47012.760485]  [<c15ae4db>] ? do_IRQ+0x4b/0xc0
Nov 11 20:46:45 karolszk-lap kernel: [47012.760488]  [<c108a32a>] ? tick_notify+0x11a/0x1d0
Nov 11 20:46:45 karolszk-lap kernel: [47012.760490]  [<c15ae330>] ? common_interrupt+0x30/0x38
Nov 11 20:46:45 karolszk-lap kernel: [47012.760494]  [<c105007b>] ? print_cpu+0x4ab/0x910
Nov 11 20:46:45 karolszk-lap kernel: [47012.760498]  [<c130449c>] ? intel_idle+0xdc/0x140
Nov 11 20:46:45 karolszk-lap kernel: [47012.760501]  [<c147cdcd>] ? cpuidle_idle_call+0xad/0x250
Nov 11 20:46:45 karolszk-lap kernel: [47012.760504]  [<c101037c>] ? cpu_idle+0x9c/0xe0
Nov 11 20:46:45 karolszk-lap kernel: [47012.760507]  [<c15737e5>] ? rest_init+0x5d/0x68
Nov 11 20:46:45 karolszk-lap kernel: [47012.760510]  [<c1877782>] ? start_kernel+0x34d/0x353
Nov 11 20:46:45 karolszk-lap kernel: [47012.760512]  [<c18773c6>] ? pass_bootoption.constprop.2+0xe2/0xe2
Nov 11 20:46:45 karolszk-lap kernel: [47012.760514]  [<c18770ba>] ? i386_start_kernel+0xa9/0xaf
Nov 11 20:46:45 karolszk-lap kernel: [47012.760516] ---[ end trace 6cf378833d63df66 ]---