This porblem is not related only to NVC0.

This bugs is the same (I think):
https://bugs.freedesktop.org/show_bug.cgi?id=98690

MacBook Pro 11.3 (GK107, GeForce GT 750M), Gentoo Linux, kernel 4.10.8.

[   49.196313] Workqueue: pm pm_runtime_work
[   49.196314] Call Trace:
[   49.196321]  ? dump_stack+0x46/0x59
[   49.196323]  ? __warn+0xb9/0xe0
[   49.196327]  ? pci_pm_runtime_resume+0xa0/0xa0
[   49.196329]  ? warn_slowpath_fmt+0x4a/0x50
[   49.196349]  ? gen6_read32+0x92/0x1e0 [i915]
[   49.196369]  ? hsw_enable_pc8+0x6b7/0x720 [i915]
[   49.196371]  ? pci_pm_runtime_resume+0xa0/0xa0
[   49.196384]  ? intel_runtime_suspend+0x142/0x250 [i915]
[   49.196386]  ? pci_pm_runtime_suspend+0x50/0x140
[   49.196387]  ? __rpm_callback+0xb1/0x1f0
[   49.196389]  ? rpm_callback+0x1a/0x70
[   49.196390]  ? pci_pm_runtime_resume+0xa0/0xa0
[   49.196392]  ? rpm_suspend+0x11d/0x670
[   49.196396]  ? _raw_write_unlock_irq+0xe/0x20
[   49.196400]  ? finish_task_switch+0xa7/0x260
[   49.196403]  ? __update_idle_core+0x1b/0xb0
[   49.196405]  ? pm_runtime_work+0x62/0xa0
[   49.196407]  ? process_one_work+0x133/0x480
[   49.196408]  ? worker_thread+0x42/0x4c0
[   49.196411]  ? kthread+0xef/0x130
[   49.196412]  ? process_one_work+0x480/0x480
[   49.196415]  ? kthread_create_on_node+0x40/0x40
[   49.196416]  ? ret_from_fork+0x23/0x30