[CentOS] Trace back related to nouveau with 6.8

Sun Jun 5 04:14:41 UTC 2016
David G. Miller <dave at davenjudy.org>

Hi All -

Ever since I upgraded to 6.8 I have usually been getting a trace back report
for some bits related to Nouveau whenever the screensaver has been running
and I get back into the system.  Along the lines of:

:Pid: 31, comm: events/4 Tainted: G        W  -- ------------   
2.6.32-642.el6.x86_64 #1
:Call Trace:
:[<ffffffff8107c911>] ? warn_slowpath_common+0x91/0xe0
:[<ffffffff8107c97a>] ? warn_slowpath_null+0x1a/0x20
:[<ffffffffa00e35b6>] ? drm_helper_choose_crtc_dpms+0xa6/0xb0 [drm_kms_helper]
:[<ffffffffa00e40d6>] ? drm_helper_connector_dpms+0xe6/0x1a0 [drm_kms_helper]
:[<ffffffffa01e1e80>] ? nv50_crtc_dpms+0x0/0x10 [nouveau]
:[<ffffffffa0134f01>] ? nvif_notify_init+0x121/0x160 [nouveau]
:[<ffffffffa01dfe42>] ? nouveau_connector_hotplug+0x92/0xd0 [nouveau]
:[<ffffffffa0134f40>] ? nvif_notify_work+0x0/0xc0 [nouveau]
:[<ffffffffa0134f6e>] ? nvif_notify_work+0x2e/0xc0 [nouveau]
:[<ffffffffa01ecf10>] ? nouveau_fence_work_handler+0x0/0x30 [nouveau]
:[<ffffffff8109fdc0>] ? worker_thread+0x170/0x2a0
:[<ffffffff810a6ac0>] ? autoremove_wake_function+0x0/0x40
:[<ffffffff8109fc50>] ? worker_thread+0x0/0x2a0
:[<ffffffff810a662e>] ? kthread+0x9e/0xc0
:[<ffffffff8100c28a>] ? child_rip+0xa/0x20
:[<ffffffff810a6590>] ? kthread+0x0/0xc0
:[<ffffffff8100c280>] ? child_rip+0x0/0x20

PID 31 is:
root        31  0.9  0.0      0     0 ?        S    Jun03  12:44 [events/4]

It seems to be innocuous (everything seems to still work) but things that
seem to be innocuous have a habit of coming back and biting me.  Anyone else
experiencing this?  Anyone know how to fix it?  Both kernel and
xorg-x11-drv-nouveau are current as is the rest of the system.  Not finding
anything with Google.