BUG: scheduling while atomic: swapper/0/0x10010000
Modules linked in: bridge stp bnep btusb binfmt_misc ppdev snd_hda_codec_intelhdmi snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss joydev snd_pcm arc4 snd_seq_dummy snd_seq_oss ecb iwlagn iwlcore snd_seq_midi iptable_filter ip_tables x_tables snd_rawmidi snd_seq_midi_event snd_seq lp parport uvcvideo videodev v4l1_compat snd_timer snd_seq_device mac80211 dell_wmi sdhci_pci sdhci led_class ricoh_mmc snd dell_laptop dcdbas psmouse serio_raw soundcore cfg80211 snd_page_alloc usbhid fbcon tileblit font bitblit softcursor ohci1394 ieee1394 tg3 i915 drm i2c_algo_bit video output intel_agp agpgart

Pid: 0, comm: swapper Not tainted (2.6.31-14-generic #48-Ubuntu) Studio 1555
EIP: 0060:[<c03699d4>] EFLAGS: 00000286 CPU: 1
EIP is at acpi_idle_enter_bm+0x255/0x286
EAX: c080fe04 EBX: 00001307 ECX: ffc2f606 EDX: 01fcc000
ESI: 00000000 EDI: f70234c0 EBP: f707df70 ESP: f707df48
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
CR0: 8005003b CR2: b667d000 CR3: 0081a000 CR4: 000406d0
DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
DR6: ffff0ff0 DR7: 00000400
Call Trace:
 [<c0468406>] cpuidle_idle_call+0x76/0xd0
 [<c010202c>] cpu_idle+0x8c/0xd0
 [<c056c096>] start_secondary+0xc6/0xc8