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:[<ffffffff8101b310>]
[<ffffffff8101b310>] rtc_cmos_write+0x10/0x10
Jun 20 17:46:27 sheeeit kernel: [ 7503.419895] RSP: 0018:ffff8800ced99bd0
EFLAGS: 00000246
Jun 20 17:46:27 sheeeit kernel: [ 7503.419900] RAX: 00000b9c67049997 RBX:
0000000000000000 RCX: 0000000067049997
Jun 20 17:46:27 sheeeit kernel: [ 7503.419904] RDX: 00000000000026ea RSI:
00000000000e4210 RDI: 0000000000029143
Jun 20 17:46:27 sheeeit kernel: [ 7503.419909] RBP: ffff8800ced99bf8 R08:
ffff8800ced99c90 R09: 0000000000000001
Jun 20 17:46:27 sheeeit kernel: [ 7503.419914] R10: 0000000000000000 R11:
0000000000000000 R12: ffffffff8103dcf9
Jun 20 17:46:27 sheeeit kernel: [ 7503.419918] R13: ffff8800ced99c08 R14:
ffffffff81077dda R15: ffff8800ced99b48
Jun 20 17:46:27 sheeeit kernel: [ 7503.419924] FS: 00007f89aed85880(0000)
GS:ffff88011fa80000(0000) knlGS:0000000000000000
Jun 20 17:46:27 sheeeit kernel: [ 7503.419930] CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
Jun 20 17:46:27 sheeeit kernel: [ 7503.419934] CR2: 00002bba32f0b030 CR3:
00000000cee47000 CR4: 00000000000406e0
Jun 20 17:46:27 sheeeit kernel: [ 7503.419939] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Jun 20 17:46:27 sheeeit kernel: [ 7503.419944] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Jun 20 17:46:27 sheeeit kernel: [ 7503.419949] Process Xorg (pid: 1740,
threadinfo ffff8800ced98000, task ffff8800d20bdbc0)
Jun 20 17:46:27 sheeeit kernel: [ 7503.419954] Stack:
Jun 20 17:46:27 sheeeit kernel: [ 7503.419957] ffffffff813176ca
0000000000000005 ffff880118708000 00000000000e4210
Jun 20 17:46:27 sheeeit kernel: [ 7503.419967] 00000000000e4214
ffff8800ced99c08 ffffffff813175f1 ffff8800ced99c78
Jun 20 17:46:27 sheeeit kernel: [ 7503.419975] ffffffffa01dc9ea
ffffffff813176ba ffff88011874b800 d253003e00000001
Jun 20 17:46:27 sheeeit kernel: [ 7503.419984] Call Trace:
Jun 20 17:46:27 sheeeit kernel: [ 7503.419996] [<ffffffff813176ca>] ?
delay_tsc+0x4a/0x80
Jun 20 17:46:27 sheeeit kernel: [ 7503.420005] [<ffffffff813175f1>]
__const_udelay+0x31/0x40
Jun 20 17:46:27 sheeeit kernel: [ 7503.420042] [<ffffffffa01dc9ea>]
intel_dp_aux_ch+0x22a/0x370 [i915]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420051] [<ffffffff813176ba>] ?
delay_tsc+0x3a/0x80
Jun 20 17:46:27 sheeeit kernel: [ 7503.420081] [<ffffffffa01de5e0>] ?
intel_dp_prepare+0x50/0x50 [i915]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420106] [<ffffffffa01dcbd9>]
intel_dp_aux_native_write+0xa9/0xf0 [i915]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420130] [<ffffffffa01dde47>]
intel_dp_sink_dpms+0x77/0xa0 [i915]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420153] [<ffffffffa01de6a3>]
intel_dp_dpms+0xc3/0x120 [i915]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420167] [<ffffffffa01a0b46>]
drm_helper_connector_dpms+0x96/0x100 [drm_kms_helper]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420193] [<ffffffffa00c1711>]
drm_mode_connector_property_set_ioctl+0x1d1/0x1e0 [drm]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420215] [<ffffffffa00b15d4>]
drm_ioctl+0x444/0x510 [drm]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420239] [<ffffffffa00c1540>] ?
drm_mode_getblob_ioctl+0xd0/0xd0 [drm]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420249] [<ffffffff8165c79e>] ?
_raw_spin_lock+0xe/0x20
Jun 20 17:46:27 sheeeit kernel: [ 7503.420258] [<ffffffff8119546e>] ?
vfsmount_lock_local_unlock+0x1e/0x30
Jun 20 17:46:27 sheeeit kernel: [ 7503.420267] [<ffffffff81197280>] ?
mntput_no_expire+0x30/0xf0
Jun 20 17:46:27 sheeeit kernel: [ 7503.420275] [<ffffffff81189e0a>]
do_vfs_ioctl+0x8a/0x340
Jun 20 17:46:27 sheeeit kernel: [ 7503.420283] [<ffffffff8118a151>]
sys_ioctl+0x91/0xa0
Jun 20 17:46:27 sheeeit kernel: [ 7503.420291] [<ffffffff8165d7be>] ?
do_device_not_available+0xe/0x10
Jun 20 17:46:27 sheeeit kernel: [ 7503.420299] [<ffffffff81664d82>]
system_call_fastpath+0x16/0x1b
Jun 20 17:46:27 sheeeit kernel: [ 7503.420303] Code: e8 d6 c2 2f 00 5d c3 90 90
90 90 55 89 f8 48 89 e5 e6 70 e4 71 5d c3 0f 1f 40 00 55 89 f0 48 89 e5 e6 70
89 f8 e6 71 5d c3 66 90 <55> 48 89 e5 0f 31 89 c1 48 89 d0 48 c1 e0 20 48 09 c8
5d c3 66
Jun 20 17:46:27 sheeeit kernel: [ 7503.420388] [<ffffffff813176ca>] ?
delay_tsc+0x4a/0x80
Jun 20 17:46:27 sheeeit kernel: [ 7503.420396] [<ffffffff813175f1>]
__const_udelay+0x31/0x40
Jun 20 17:46:27 sheeeit kernel: [ 7503.420420] [<ffffffffa01dc9ea>]
intel_dp_aux_ch+0x22a/0x370 [i915]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420428] [<ffffffff813176ba>] ?
delay_tsc+0x3a/0x80
Jun 20 17:46:27 sheeeit kernel: [ 7503.420450] [<ffffffffa01de5e0>] ?
intel_dp_prepare+0x50/0x50 [i915]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420472] [<ffffffffa01dcbd9>]
intel_dp_aux_native_write+0xa9/0xf0 [i915]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420494] [<ffffffffa01dde47>]
intel_dp_sink_dpms+0x77/0xa0 [i915]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420516] [<ffffffffa01de6a3>]
intel_dp_dpms+0xc3/0x120 [i915]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420529] [<ffffffffa01a0b46>]
drm_helper_connector_dpms+0x96/0x100 [drm_kms_helper]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420552] [<ffffffffa00c1711>]
drm_mode_connector_property_set_ioctl+0x1d1/0x1e0 [drm]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420572] [<ffffffffa00b15d4>]
drm_ioctl+0x444/0x510 [drm]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420596] [<ffffffffa00c1540>] ?
drm_mode_getblob_ioctl+0xd0/0xd0 [drm]
Jun 20 17:46:27 sheeeit kernel: [ 7503.420604] [<ffffffff8165c79e>] ?
_raw_spin_lock+0xe/0x20
Jun 20 17:46:27 sheeeit kernel: [ 7503.420612] [<ffffffff8119546e>] ?
vfsmount_lock_local_unlock+0x1e/0x30
Jun 20 17:46:27 sheeeit kernel: [ 7503.420620] [<ffffffff81197280>] ?
mntput_no_expire+0x30/0xf0
Jun 20 17:46:27 sheeeit kernel: [ 7503.420628] [<ffffffff81189e0a>]
do_vfs_ioctl+0x8a/0x340
Jun 20 17:46:27 sheeeit kernel: [ 7503.420635] [<ffffffff8118a151>]
sys_ioctl+0x91/0xa0
Jun 20 17:46:27 sheeeit kernel: [ 7503.420643] [<ffffffff8165d7be>] ?
do_device_not_available+0xe/0x10
Jun 20 17:46:27 sheeeit kernel: [ 7503.420650] [<ffffffff81664d82>]
system_call_fastpath+0x16/0x1b
I also experienced strange things, like .bash_history being truncated after
rebooting ....
If you need more info, just ask for it and I'll happily provide it
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https://bugs.launchpad.net/bugs/958749
Title:
BUG: soft lockup - CPU#0 stuck for 22s! [Xorg:1199]
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