BUG: scheduling while atomic: dropbox/8461/0x10010100
Modules linked in: nls_iso8859_1 nls_cp437 vfat fat binfmt_misc vboxnetadp vboxnetflt vboxdrv parport_pc ppdev snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi rt2860sta(C) snd_seq_midi_event arc4 snd_seq snd_timer snd_seq_device i915 rt2800pci rt2800lib rt2x00usb drm_kms_helper rt2x00pci crc_ccitt drm rt2x00lib i2c_algo_bit snd soundcore mac80211 led_class video uvcvideo snd_page_alloc joydev eeepc_wmi cfg80211 videodev usbhid eeprom_93cx6 v4l1_compat output hid intel_agp lp psmouse agpgart sparse_keymap serio_raw parport usb_storage atl1e
Modules linked in: nls_iso8859_1 nls_cp437 vfat fat binfmt_misc vboxnetadp vboxnetflt vboxdrv parport_pc ppdev snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi rt2860sta(C) snd_seq_midi_event arc4 snd_seq snd_timer snd_seq_device i915 rt2800pci rt2800lib rt2x00usb drm_kms_helper rt2x00pci crc_ccitt drm rt2x00lib i2c_algo_bit snd soundcore mac80211 led_class video uvcvideo snd_page_alloc joydev eeepc_wmi cfg80211 videodev usbhid eeprom_93cx6 v4l1_compat output hid intel_agp lp psmouse agpgart sparse_keymap serio_raw parport usb_storage atl1e

Pid: 8461, comm: dropbox Tainted: G         C  2.6.35-21-generic #31-Ubuntu 1000H/1000H
EIP: 0060:[<c01ac6d6>] EFLAGS: 00200246 CPU: 0
EIP is at __rcu_process_callbacks+0x36/0x2d0
EAX: c07d27c0 EBX: c24044c0 ECX: 00098a95 EDX: 0000019e
ESI: 00000001 EDI: 00000009 EBP: ce533f2c ESP: ce533f10
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process dropbox (pid: 8461, ti=ce532000 task=e6aa4c20 task.ti=ce532000)
Stack:
 00200296 c07d27c0 c2404458 ce533f38 00000024 00000001 00000009 ce533f38
<0> c01ac9ae 00000024 ce533f80 c015127c 00000001 00000000 ce533f6c 9857e9c3
<0> 00001488 c2404264 9857e9c3 00001488 0000000a 00000000 c08bf160 00000100
Call Trace: