BUG: unable to handle kernel paging request at 000000002f6506e58
IP: [<ffffffff8105057d>] task_rq_lock+0x4d/0xa0
PDG 0
Oops: 0000 [$1] SMP
last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
CPU 1
Modules linked in: usb_storage hidp rfcomm binfmt_misc sco bnep l2cap vboxnetadp vboxnetflt vboxdrv parport_pc ppdev btrfs zlib_deflate crc32c libcrc32c dm_crypt snd_hda_codec_idt nvidia(P) snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi arc4 snd_rawmidi nd_seq_midi_event snd_seq iwlagn r852 snd_timer snd_seq_device iwlcore sm_common nand snd mac80211 nand_ids cfg80211 uvcvideo videodev v412_compat_ioctl32 nand_ecc soundcore snd_page_alloc mtd btusb psmouse joydev dell_wmi dell_laptop serio_raw sparse_keymap dcdbas bluetooth lp parport usbhld hid firewire_ohci sky2 ahci intel_agp intel_gtt sdhci_pci sdhci firewire_core libahci crc_itu_t

Pid: 5821, comm: firefox-bin Tainted: P         2.6.38-rc3-generic # 1     /XPS M1530
0010:[<ffffffff8105057d>]  [<ffffffff8105057d>] task_rq_lock+0x4d/0xa0
RSP: 0000:ffff8800dfd03d90  EFLAGS: 00010086
RAX: 000000006e94d067 RBX: 0000000000013ac0 RCX: 0000000000000020
RDX: 0000000000000286 RSI: ffff8800dfd03de8 RDI: ffff8800b62a0000
RBP: ffff8800dfd03db0 R08: 0000000000000000 R09: 00000000000003fb
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8800b62a0000
R13: ffff8800dfd03de8 R14: 0000000000013ac0 R15: 0000000000000001
FS:  00007f2d482829a0(0000) GS:ffff8800dfd00000(0000) knlGS: 0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000002f6506e58 CR3: 00000000db42e000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000000

Process firefox-bin (pid: 5821, threadinfo ffff880db2e6000, task ffff8800b873db00
Stack:
 ffff8800b62a0000 ffff8801136729a0 000000000000000f 0000000000000000 
 ffff8800dfd03e20 ffffffff8105bc3c 0000000000000086 ffff8800cd210400
 ffff8800cd210400 ffff8800dfd13b30 0000000000000000 0000000000000286

Call Trace:
<IRQ>
try_to_wake_up+0x3c/0x3f0
wake_up_process+0x15/0x20