I've been experiencing crashes like this the whole day :
Jun 20 17:46:27 sheeeit kernel: [ 7503.419644] BUG: soft lockup - CPU#2 stuck
for 23s! [Xorg:1740]
Jun 20 17:46:27 sheeeit kernel: [ 7503.419655] Modules linked in: pci_stub
vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) snd_hda_codec_hdmi
snd_hda_codec_realtek joydev bnep parport_pc rfcomm ppdev btusb bluetooth
usbhid hid snd_hda_in
tel snd_hda_codec snd_hwdep uvcvideo videodev snd_pcm v4l2_compat_ioctl32
binfmt_misc snd_seq_midi arc4 snd_rawmidi dm9601 usbnet ipt_MASQUERADE
snd_seq_midi_event iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack snd_seq
nf_defrag_ipv4 ip
_tables dell_laptop x_tables dell_wmi sparse_keymap snd_timer snd_seq_device
xfs dcdbas snd iwlwifi psmouse i915 serio_raw mac80211 drm_kms_helper drm
soundcore snd_page_alloc mei(C) cfg80211 i2c_algo_bit wmi video bridge stp
dummy lp mac_
hid parport
Jun 20 17:46:27 sheeeit kernel: [ 7503.419771] CPU 2
Jun 20 17:46:27 sheeeit kernel: [ 7503.419773] Modules linked in: pci_stub
vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) snd_hda_codec_hdmi
snd_hda_codec_realtek joydev bnep parport_pc rfcomm ppdev btusb bluetooth
usbhid hid snd_hda_in
tel snd_hda_codec snd_hwdep uvcvideo videodev snd_pcm v4l2_compat_ioctl32
binfmt_misc snd_seq_midi arc4 snd_rawmidi dm9601 usbnet ipt_MASQUERADE
snd_seq_midi_event iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack snd_seq
nf_defrag_ipv4 ip
_tables dell_laptop x_tables dell_wmi sparse_keymap snd_timer snd_seq_device
xfs dcdbas snd iwlwifi psmouse i915 serio_raw mac80211 drm_kms_helper drm
soundcore snd_page_alloc mei(C) cfg80211 i2c_algo_bit wmi video bridge stp
dummy lp mac_
hid parport
Jun 20 17:46:27 sheeeit kernel: [ 7503.419862]
Jun 20 17:46:27 sheeeit kernel: [ 7503.419868] Pid: 1740, comm: Xorg Tainted: G
C O 3.2.0-24-generic #39-Ubuntu Dell Inc. Dell System XPS
L321X/0Y4RM9
Jun 20 17:46:27 sheeeit kernel: [ 7503.419879] RIP: 0010:[]
[] rtc_cmos_write+0x10/0x10
Jun 20 17:46:27 sheeeit kernel: [ 7503.419895] RSP: 0018:8800ced99bd0
EFLAGS: 0246
Jun 20 17:46:27 sheeeit kernel: [ 7503.419900] RAX: 0b9c67049997 RBX:
RCX: 67049997
Jun 20 17:46:27 sheeeit kernel: [ 7503.419904] RDX: 26ea RSI:
000e4210 RDI: 00029143
Jun 20 17:46:27 sheeeit kernel: [ 7503.419909] RBP: 8800ced99bf8 R08:
8800ced99c90 R09: 0001
Jun 20 17:46:27 sheeeit kernel: [ 7503.419914] R10: R11:
R12: 8103dcf9
Jun 20 17:46:27 sheeeit kernel: [ 7503.419918] R13: 8800ced99c08 R14:
81077dda R15: 8800ced99b48
Jun 20 17:46:27 sheeeit kernel: [ 7503.419924] FS: 7f89aed85880()
GS:88011fa8() knlGS:
Jun 20 17:46:27 sheeeit kernel: [ 7503.419930] CS: 0010 DS: ES: CR0:
8005003b
Jun 20 17:46:27 sheeeit kernel: [ 7503.419934] CR2: 2bba32f0b030 CR3:
cee47000 CR4: 000406e0
Jun 20 17:46:27 sheeeit kernel: [ 7503.419939] DR0: DR1:
DR2:
Jun 20 17:46:27 sheeeit kernel: [ 7503.419944] DR3: DR6:
0ff0 DR7: 0400
Jun 20 17:46:27 sheeeit kernel: [ 7503.419949] Process Xorg (pid: 1740,
threadinfo 8800ced98000, task 8800d20bdbc0)
Jun 20 17:46:27 sheeeit kernel: [ 7503.419954] Stack:
Jun 20 17:46:27 sheeeit kernel: [ 7503.419957] 813176ca
0005 880118708000 000e4210
Jun 20 17:46:27 sheeeit kernel: [ 7503.419967] 000e4214
8800ced99c08 813175f1 8800ced99c78
Jun 20 17:46:27 sheeeit kernel: [ 7503.419975] a01dc9ea
813176ba 88011874b800 d253003e0001
Jun 20 17:46:27 sheeeit kernel: [ 7503.419984] Call Trace:
Jun 20 17:46:27 sheeeit kernel: [ 7503.419996] [] ?
delay_tsc+0x4a/0x80
Jun 20 17:46:27 sheeeit kernel: [ 7503.420005] []
__const_udelay+0x31/0x40
Jun 20 17:46:27 sheeeit kernel: [ 7503.420042] []
intel_dp_aux_ch+0x22a/0x370 [i915]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420051] [] ?
delay_tsc+0x3a/0x80
Jun 20 17:46:27 sheeeit kernel: [ 7503.420081] [] ?
intel_dp_prepare+0x50/0x50 [i915]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420106] []
intel_dp_aux_native_write+0xa9/0xf0 [i915]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420130] []
intel_dp_sink_dpms+0x77/0xa0 [i915]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420153] []
intel_dp_dpms+0xc3/0x120 [i915]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420167] []
drm_helper_connector_dpms+0x96/0x100 [drm_kms_helper]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420193] []
drm_mode_connector_property_set_ioctl+0x1d1/0x1e0 [drm]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420215] []
drm_ioctl+0x444/0x510 [drm]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420239] [] ?
drm_mode_getblob_ioctl+0xd0/0xd0 [drm]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420249] [] ?
_raw_spin_lock+0xe/0x20
Jun 20 17:46:27 sheeeit kernel: [ 7503.4202
