------------[ cut here ]------------
WARNING: at /build/buildd/linux-2.6.31/kernel/power/suspend_test.c:52 suspend_test_finish+0x80/0x90()
Hardware name: XPS M1530                       
Component: resume devices
Modules linked in: usbhid binfmt_misc ppdev snd_hda_codec_idt snd_hda_intel snd_hda_codec arc4 ecb snd_hwdep snd_pcm_oss iwlagn snd_mixer_oss iwlcore snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer joydev snd_seq_device iptable_filter snd dell_wmi ip_tables sdhci_pci mac80211 uvcvideo videodev v4l1_compat nvidia(P) soundcore dell_laptop psmouse sdhci ricoh_mmc cfg80211 serio_raw led_class snd_page_alloc x_tables lp dcdbas parport ohci1394 ieee1394 sky2 video output intel_agp agpgart
Pid: 30360, comm: pm-suspend Tainted: P           2.6.31-14-generic #48-Ubuntu
Call Trace:
 [<c014518d>] warn_slowpath_common+0x6d/0xa0
 [<c0174e70>] ? suspend_test_finish+0x80/0x90
 [<c0174e70>] ? suspend_test_finish+0x80/0x90
 [<c0145206>] warn_slowpath_fmt+0x26/0x30
 [<c0174e70>] suspend_test_finish+0x80/0x90
 [<c0174c5f>] suspend_devices_and_enter+0x9f/0xd0
 [<c056e41c>] ? printk+0x18/0x1c
 [<c0174d49>] enter_state+0xb9/0xf0
 [<c017443d>] state_store+0x6d/0xb0
 [<c01743d0>] ? state_store+0x0/0xb0
 [<c0311a70>] kobj_attr_store+0x20/0x30
 [<c0239290>] sysfs_write_file+0x90/0x100
 [<c01e747a>] vfs_write+0x9a/0x190
 [<c0239200>] ? sysfs_write_file+0x0/0x100
 [<c0572d4b>] ? do_page_fault+0x19b/0x380
 [<c01e7f3d>] sys_write+0x3d/0x70
 [<c010336c>] syscall_call+0x7/0xb
---[ end trace 8e4a55ca7c6b263e ]---