[    9.159784] ------------[ cut here ]------------
[    9.159820] WARNING: CPU: 3 PID: 345 at drivers/gpu/drm/i915/intel_pm.c:2338 ilk_update_wm+0x969/0x1080 [i915]()
[    9.159822] WARN_ON(!r->enable)
[    9.159824] Modules linked in:
[    9.159826]  i915(+) iwlmvm(+) i2c_algo_bit drm_kms_helper iwlwifi drm nfsd nfs auth_rpcgss oid_registry nfs_acl lockd grace sunrpc ip_tables x_tables
[    9.159842] CPU: 3 PID: 345 Comm: systemd-udevd Tainted: G     U    I     4.1.0-1-ck #1
[    9.159844] Hardware name: Notebook                         W840SU Series                    /W840SU Series                    , BIOS 4.6.5 11/26/2013
[    9.159846]  0000000000000000 00000000a5efc394 ffff8800d97e3188 ffffffff818fa435
[    9.159849]  0000000000000000 ffff8800d97e31e0 ffff8800d97e31c8 ffffffff810ea35a
[    9.159853]  ffff8800d97e31a8 ffff8802148d8b78 ffff880214911000 ffff8800d97e3324
[    9.159856] Call Trace:
[    9.159864]  [<ffffffff818fa435>] dump_stack+0x4c/0x6e
[    9.159868]  [<ffffffff810ea35a>] warn_slowpath_common+0x8a/0xc0
[    9.159871]  [<ffffffff810ea3e5>] warn_slowpath_fmt+0x55/0x70
[    9.159893]  [<ffffffffa0259be3>] ? ilk_compute_wm_maximums+0x43/0xb0 [i915]
[    9.159913]  [<ffffffffa025c4c9>] ilk_update_wm+0x969/0x1080 [i915]
[    9.159936]  [<ffffffffa025ea5e>] intel_update_watermarks+0x1e/0x20 [i915]
[    9.159967]  [<ffffffffa02bdf25>] intel_begin_crtc_commit+0xa5/0x110 [i915]
[    9.159973]  [<ffffffffa0207fe5>] drm_atomic_helper_commit_planes_on_crtc+0x55/0x270 [drm_kms_helper]
[    9.160003]  [<ffffffffa02ceed8>] intel_atomic_commit+0x698/0x8d0 [i915]
[    9.160011]  [<ffffffffa018c602>] ? drm_atomic_check_only+0x242/0x5a0 [drm]
[    9.160018]  [<ffffffffa018c997>] drm_atomic_commit+0x37/0x60 [drm]
[    9.160045]  [<ffffffffa02c7c28>] intel_crtc_control+0x178/0x220 [i915]
[    9.160072]  [<ffffffffa02d032f>] intel_modeset_setup_hw_state+0xbff/0x1010 [i915]
[    9.160098]  [<ffffffffa02ad420>] ? hsw_write64+0x150/0x150 [i915]
[    9.160106]  [<ffffffffa018b791>] ? drm_modeset_lock_all_crtcs+0xa1/0xb0 [drm]
[    9.160112]  [<ffffffffa018ba08>] ? __drm_modeset_lock_all+0x118/0x140 [drm]
[    9.160138]  [<ffffffffa02d12b2>] intel_modeset_init+0x9f2/0x1940 [i915]
[    9.160164]  [<ffffffffa0293a3a>] ? ironlake_irq_postinstall+0xca/0x1b0 [i915]
[    9.160196]  [<ffffffffa0309465>] i915_driver_load+0xd45/0x14c0 [i915]
[    9.160200]  [<ffffffff8176c913>] ? netlink_broadcast_filtered+0x143/0x3e0
[    9.160204]  [<ffffffff8140ae90>] ? kobj_ns_drop+0x50/0x50
[    9.160208]  [<ffffffff8140b1c0>] ? kobject_uevent_env+0x170/0x540
[    9.160212]  [<ffffffff8154f73d>] ? devtmpfs_create_node+0x10d/0x150
[    9.160216]  [<ffffffff81543a47>] ? get_device+0x17/0x30
[    9.160219]  [<ffffffff81549aa5>] ? klist_class_dev_get+0x15/0x20
[    9.160222]  [<ffffffff818edd27>] ? klist_node_init+0x37/0x60
[    9.160225]  [<ffffffff81545482>] ? device_add+0x222/0x640
[    9.160233]  [<ffffffffa0173e15>] drm_dev_register+0xb5/0x110 [drm]
[    9.160241]  [<ffffffffa01769da>] drm_get_pci_dev+0xda/0x200 [drm]
[    9.160263]  [<ffffffffa025332b>] i915_pci_probe+0x3b/0x60 [i915]
[    9.160267]  [<ffffffff8144dbec>] pci_device_probe+0x8c/0xf0
[    9.160270]  [<ffffffff81548b39>] driver_probe_device+0x209/0x4c0
[    9.160273]  [<ffffffff81548ecb>] __driver_attach+0x9b/0xa0
[    9.160276]  [<ffffffff81548e30>] ? __device_attach+0x40/0x40
[    9.160279]  [<ffffffff81546893>] bus_for_each_dev+0x73/0xc0
[    9.160282]  [<ffffffff815483fe>] driver_attach+0x1e/0x20
[    9.160284]  [<ffffffff81547fc0>] bus_add_driver+0x180/0x250
[    9.160287]  [<ffffffff81549774>] driver_register+0x64/0xf0
[    9.160291]  [<ffffffff8144d2cb>] __pci_register_driver+0x4b/0x50
[    9.160297]  [<ffffffffa0176bfa>] drm_pci_init+0xfa/0x130 [drm]
[    9.160300]  [<ffffffffa035e000>] ? 0xffffffffa035e000
[    9.160321]  [<ffffffffa035e0a0>] i915_init+0xa0/0xa8 [i915]
[    9.160325]  [<ffffffff81002128>] do_one_initcall+0xb8/0x200
[    9.160329]  [<ffffffff818f8a25>] do_init_module+0x60/0x1cb
[    9.160333]  [<ffffffff8116f48a>] load_module+0x218a/0x27e0
[    9.160336]  [<ffffffff8116b480>] ? store_uevent+0x70/0x70
[    9.160340]  [<ffffffff8116fc45>] SyS_init_module+0x165/0x1b0
[    9.160344]  [<ffffffff8190126e>] system_call_fastpath+0x12/0x71
[    9.160350] ---[ end trace 7ea16339753c3247 ]---
[    9.160352] ------------[ cut here ]------------
[    9.160374] WARNING: CPU: 3 PID: 345 at drivers/gpu/drm/i915/intel_pm.c:2338 ilk_update_wm+0x969/0x1080 [i915]()
[    9.160375] WARN_ON(!r->enable)
[    9.160377] Modules linked in:
[    9.160378]  i915(+) iwlmvm(+) i2c_algo_bit drm_kms_helper iwlwifi drm nfsd nfs auth_rpcgss oid_registry nfs_acl lockd grace sunrpc ip_tables x_tables
[    9.160391] CPU: 3 PID: 345 Comm: systemd-udevd Tainted: G     U  W I     4.1.0-1-ck #1
[    9.160393] Hardware name: Notebook                         W840SU Series                    /W840SU Series                    , BIOS 4.6.5 11/26/2013
[    9.160394]  0000000000000000 00000000a5efc394 ffff8800d97e3188 ffffffff818fa435
[    9.160398]  0000000000000000 ffff8800d97e31e0 ffff8800d97e31c8 ffffffff810ea35a
[    9.160402]  ffff8800d97e31a8 ffff8802148d8b78 ffff880214917000 ffff8800d97e3324
[    9.160406] Call Trace:
[    9.160410]  [<ffffffff818fa435>] dump_stack+0x4c/0x6e
[    9.160413]  [<ffffffff810ea35a>] warn_slowpath_common+0x8a/0xc0
[    9.160416]  [<ffffffff810ea3e5>] warn_slowpath_fmt+0x55/0x70
[    9.160436]  [<ffffffffa0259be3>] ? ilk_compute_wm_maximums+0x43/0xb0 [i915]
[    9.160454]  [<ffffffffa025c4c9>] ilk_update_wm+0x969/0x1080 [i915]
[    9.160475]  [<ffffffffa025ea5e>] intel_update_watermarks+0x1e/0x20 [i915]
[    9.160504]  [<ffffffffa02bdf25>] intel_begin_crtc_commit+0xa5/0x110 [i915]
[    9.160509]  [<ffffffffa0207fe5>] drm_atomic_helper_commit_planes_on_crtc+0x55/0x270 [drm_kms_helper]
[    9.160539]  [<ffffffffa02ceed8>] intel_atomic_commit+0x698/0x8d0 [i915]
[    9.160545]  [<ffffffffa018c602>] ? drm_atomic_check_only+0x242/0x5a0 [drm]
[    9.160551]  [<ffffffffa018c997>] drm_atomic_commit+0x37/0x60 [drm]
[    9.160578]  [<ffffffffa02c7c28>] intel_crtc_control+0x178/0x220 [i915]
[    9.160605]  [<ffffffffa02d032f>] intel_modeset_setup_hw_state+0xbff/0x1010 [i915]
[    9.160631]  [<ffffffffa02ad420>] ? hsw_write64+0x150/0x150 [i915]
[    9.160638]  [<ffffffffa018b791>] ? drm_modeset_lock_all_crtcs+0xa1/0xb0 [drm]
[    9.160645]  [<ffffffffa018ba08>] ? __drm_modeset_lock_all+0x118/0x140 [drm]
[    9.160670]  [<ffffffffa02d12b2>] intel_modeset_init+0x9f2/0x1940 [i915]
[    9.160696]  [<ffffffffa0293a3a>] ? ironlake_irq_postinstall+0xca/0x1b0 [i915]
[    9.160727]  [<ffffffffa0309465>] i915_driver_load+0xd45/0x14c0 [i915]
[    9.160731]  [<ffffffff8176c913>] ? netlink_broadcast_filtered+0x143/0x3e0
[    9.160734]  [<ffffffff8140ae90>] ? kobj_ns_drop+0x50/0x50
[    9.160737]  [<ffffffff8140b1c0>] ? kobject_uevent_env+0x170/0x540
[    9.160741]  [<ffffffff8154f73d>] ? devtmpfs_create_node+0x10d/0x150
[    9.160744]  [<ffffffff81543a47>] ? get_device+0x17/0x30
[    9.160746]  [<ffffffff81549aa5>] ? klist_class_dev_get+0x15/0x20
[    9.160749]  [<ffffffff818edd27>] ? klist_node_init+0x37/0x60
[    9.160752]  [<ffffffff81545482>] ? device_add+0x222/0x640
[    9.160760]  [<ffffffffa0173e15>] drm_dev_register+0xb5/0x110 [drm]
[    9.160766]  [<ffffffffa01769da>] drm_get_pci_dev+0xda/0x200 [drm]
[    9.160788]  [<ffffffffa025332b>] i915_pci_probe+0x3b/0x60 [i915]
[    9.160792]  [<ffffffff8144dbec>] pci_device_probe+0x8c/0xf0
[    9.160795]  [<ffffffff81548b39>] driver_probe_device+0x209/0x4c0
[    9.160798]  [<ffffffff81548ecb>] __driver_attach+0x9b/0xa0
[    9.160800]  [<ffffffff81548e30>] ? __device_attach+0x40/0x40
[    9.160804]  [<ffffffff81546893>] bus_for_each_dev+0x73/0xc0
[    9.160807]  [<ffffffff815483fe>] driver_attach+0x1e/0x20
[    9.160809]  [<ffffffff81547fc0>] bus_add_driver+0x180/0x250
[    9.160812]  [<ffffffff81549774>] driver_register+0x64/0xf0
[    9.160816]  [<ffffffff8144d2cb>] __pci_register_driver+0x4b/0x50
[    9.160822]  [<ffffffffa0176bfa>] drm_pci_init+0xfa/0x130 [drm]
[    9.160825]  [<ffffffffa035e000>] ? 0xffffffffa035e000
[    9.160845]  [<ffffffffa035e0a0>] i915_init+0xa0/0xa8 [i915]
[    9.160848]  [<ffffffff81002128>] do_one_initcall+0xb8/0x200
[    9.160852]  [<ffffffff818f8a25>] do_init_module+0x60/0x1cb
[    9.160855]  [<ffffffff8116f48a>] load_module+0x218a/0x27e0
[    9.160858]  [<ffffffff8116b480>] ? store_uevent+0x70/0x70
[    9.160862]  [<ffffffff8116fc45>] SyS_init_module+0x165/0x1b0
[    9.160866]  [<ffffffff8190126e>] system_call_fastpath+0x12/0x71
[    9.161065] ---[ end trace 7ea16339753c3248 ]---
[    9.169081] fbcon: inteldrmfb (fb0) is primary device
[    9.169166] ------------[ cut here ]------------
[    9.169202] WARNING: CPU: 0 PID: 100 at drivers/gpu/drm/i915/intel_uncore.c:620 hsw_unclaimed_reg_debug+0x79/0xa0 [i915]()
[    9.169203] Unclaimed register detected after writing to register 0x7129c
[    9.169214] Modules linked in: i915(+) iwlmvm(+) i2c_algo_bit drm_kms_helper iwlwifi drm nfsd nfs auth_rpcgss oid_registry nfs_acl lockd grace sunrpc ip_tables x_tables
[    9.169217] CPU: 0 PID: 100 Comm: kworker/u8:5 Tainted: G     U  W I     4.1.0-1-ck #1
[    9.169218] Hardware name: Notebook                         W840SU Series                    /W840SU Series                    , BIOS 4.6.5 11/26/2013
[    9.169223] Workqueue: events_unbound async_run_entry_fn
[    9.169226]  0000000000000000 00000000c12df774 ffff88007f81f678 ffffffff818fa435
[    9.169228]  0000000000000000 ffff88007f81f6d0 ffff88007f81f6b8 ffffffff810ea35a
[    9.169229]  ffff88007f81f6a8 ffff880212e40000 000000000007129c ffff880212e40080
[    9.169230] Call Trace:
[    9.169236]  [<ffffffff818fa435>] dump_stack+0x4c/0x6e
[    9.169239]  [<ffffffff810ea35a>] warn_slowpath_common+0x8a/0xc0
[    9.169241]  [<ffffffff810ea3e5>] warn_slowpath_fmt+0x55/0x70
[    9.169267]  [<ffffffffa02a6979>] hsw_unclaimed_reg_debug+0x79/0xa0 [i915]
[    9.169288]  [<ffffffffa02ad4b7>] hsw_write32+0x97/0x160 [i915]
[    9.169308]  [<ffffffffa02ad420>] ? hsw_write64+0x150/0x150 [i915]
[    9.169309] ACPI: Video Device [GFX0] (multi-head: yes  rom: no  post: no)
[    9.169335]  [<ffffffffa02d9afb>] ivb_disable_plane+0xab/0xd0 [i915]
[    9.169359]  [<ffffffffa02b6ca3>] intel_disable_planes_on_crtc+0x73/0x90 [i915]
[    9.169380]  [<ffffffffa02bdef5>] intel_begin_crtc_commit+0x75/0x110 [i915]
[    9.169385]  [<ffffffffa0207fe5>] drm_atomic_helper_commit_planes_on_crtc+0x55/0x270 [drm_kms_helper]
[    9.169408]  [<ffffffffa02c6570>] ? intel_pre_plane_update+0x1a0/0x210 [i915]
[    9.169432]  [<ffffffffa02ceed8>] intel_atomic_commit+0x698/0x8d0 [i915]
[    9.169439]  [<ffffffffa018c602>] ? drm_atomic_check_only+0x242/0x5a0 [drm]
[    9.169444]  [<ffffffffa018c997>] drm_atomic_commit+0x37/0x60 [drm]
[    9.169448]  [<ffffffffa0208a5d>] drm_atomic_helper_plane_set_property+0x8d/0xd0 [drm_kms_helper]
[    9.169456]  [<ffffffffa017a6bd>] drm_mode_plane_set_obj_prop+0x2d/0x90 [drm]
[    9.169459]  [<ffffffffa020a84b>] restore_fbdev_mode+0x6b/0xf0 [drm_kms_helper]
[    9.169462]  [<ffffffffa020c9d9>] drm_fb_helper_restore_fbdev_mode_unlocked+0x29/0x80 [drm_kms_helper]
[    9.169465]  [<ffffffffa020ca52>] drm_fb_helper_set_par+0x22/0x50 [drm_kms_helper]
[    9.169491]  [<ffffffffa02de27a>] intel_fbdev_set_par+0x1a/0x60 [i915]
[    9.169494]  [<ffffffff81477c2f>] fbcon_init+0x58f/0x610
[    9.169498]  [<ffffffff814ff30c>] visual_init+0xbc/0x120
[    9.169501]  [<ffffffff81500f3e>] do_bind_con_driver+0x1ce/0x400
[    9.169503]  [<ffffffff815014b0>] do_take_over_console+0x120/0x1b0
[    9.169506]  [<ffffffff818f883c>] ? printk+0x55/0x6b
[    9.169507] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input17
[    9.169509]  [<ffffffff81477d0b>] do_fbcon_takeover+0x5b/0xc0
[    9.169512]  [<ffffffff8147c275>] fbcon_event_notify+0x6e5/0x7e0
[    9.169515]  [<ffffffff8110942f>] notifier_call_chain+0x4f/0x80
[    9.169517]  [<ffffffff8110980b>] __blocking_notifier_call_chain+0x4b/0x70
[    9.169519]  [<ffffffff81109846>] blocking_notifier_call_chain+0x16/0x20
[    9.169521]  [<ffffffff8148234b>] fb_notifier_call_chain+0x1b/0x20
[    9.169524]  [<ffffffff8148457a>] register_framebuffer+0x21a/0x380
[    9.169527]  [<ffffffffa020ccf3>] drm_fb_helper_initial_config+0x273/0x580 [drm_kms_helper]
[    9.169551]  [<ffffffffa02dedfb>] intel_fbdev_initial_config+0x1b/0x20 [i915]
[    9.169554]  [<ffffffff8110b09c>] async_run_entry_fn+0x4c/0x170
[    9.169556]  [<ffffffff81102c5e>] process_one_work+0x14e/0x470
[    9.169558]  [<ffffffff81102fc8>] worker_thread+0x48/0x4c0
[    9.169560]  [<ffffffff81102f80>] ? process_one_work+0x470/0x470
[    9.169561]  [<ffffffff81102f80>] ? process_one_work+0x470/0x470
[    9.169564]  [<ffffffff81108688>] kthread+0xd8/0xf0
[    9.169566]  [<ffffffff811085b0>] ? kthread_worker_fn+0x170/0x170
[    9.169570]  [<ffffffff81901662>] ret_from_fork+0x42/0x70
[    9.169572]  [<ffffffff811085b0>] ? kthread_worker_fn+0x170/0x170
[    9.169574] ---[ end trace 7ea16339753c3249 ]---
[    9.169705] [drm] Initialized i915 1.6.0 20150522 for 0000:00:02.0 on minor 0
[    9.182109] [drm:intel_uncore_check_errors [i915]] *ERROR* Unclaimed register before interrupt