BUG: scheduling while atomic: swapper/0/0x10000100
Modules linked in: binfmt_misc ppdev vboxnetflt vboxnetadp vboxdrv snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss fbcon tileblit font bitblit softcursor snd_mixer_oss snd_pcm vga16fb b44 snd_seq_dummy vgastate ssb snd_seq_oss snd_seq_midi snd_rawmidi mii lib80211_crypt_tkip joydev snd_seq_midi_event radeon snd_seq ttm snd_timer snd_seq_device wl(P) drm_kms_helper snd drm sdhci_pci soundcore i2c_piix4 i2c_algo_bit sdhci snd_page_alloc psmouse lib80211 ricoh_mmc video dell_wmi k8temp led_class output dell_laptop edac_core serio_raw lp shpchp dcdbas edac_mce_amd parport pata_atiixp ahci
CPU 1:
Modules linked in: binfmt_misc ppdev vboxnetflt vboxnetadp vboxdrv snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss fbcon tileblit font bitblit softcursor snd_mixer_oss snd_pcm vga16fb b44 snd_seq_dummy vgastate ssb snd_seq_oss snd_seq_midi snd_rawmidi mii lib80211_crypt_tkip joydev snd_seq_midi_event radeon snd_seq ttm snd_timer snd_seq_device wl(P) drm_kms_helper snd drm sdhci_pci soundcore i2c_piix4 i2c_algo_bit sdhci snd_page_alloc psmouse lib80211 ricoh_mmc video dell_wmi k8temp led_class output dell_laptop edac_core serio_raw lp shpchp dcdbas edac_mce_amd parport pata_atiixp ahci
Pid: 0, comm: swapper Tainted: P      D    2.6.32-17-generic #26-Ubuntu Vostro   1000 
RIP: 0010:[<ffffffff81038acb>]  [<ffffffff81038acb>] native_safe_halt+0xb/0x10
RSP: 0018:ffff88014b8e7eb8  EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88014b8e7eb8 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000082 RDI: 0000000000000082
RBP: ffffffff81013b0e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff81093370
R13: ffff88014b8e7e58 R14: 0000000000000000 R15: 00000000ffffffff
FS:  00007ffed5a98710(0000) GS:ffff880028300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 00007f3f50440000 CR3: 000000012cddb000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 [<ffffffff81092b0c>] ? clockevents_notify+0x4c/0x160
 [<ffffffff8101b6cd>] ? default_idle+0x3d/0x90
 [<ffffffff8101b7ba>] ? c1e_idle+0x9a/0x120
 [<ffffffff81011e73>] ? cpu_idle+0xb3/0x110
 [<ffffffff8153a62c>] ? start_secondary+0xa8/0xaa