Weird ACPI/DRM messages on -current

[Alexei Pastuchov]

Hi,
I'm using

11.0-CURRENT FreeBSD 11.0-CURRENT #0 r287497: Sun Sep  6 17:10:22 CEST 2015

on HP Folio 9470m.

After last ports upgrade in /var/log/messages appear weird messages:

Apr 28 06:31:10 dork kernel: error: [drm:pid9:i915_gem_object_unbind] *ERROR*
Attempting to unbind pinned buffer
Apr 28 07:04:47 dork kernel: error: [drm:pid9:i915_gem_object_unbind] *ERROR*
Attempting to unbind pinned buffer
Apr 28 20:20:40 dork kernel: error: [drm:pid1063:gen6_sanitize_pm] *ERROR* Power
management discrepancy: GEN6_RP_INTERRUPT_LIMITS expected 17000000, was 12000000
Apr 28 21:29:40 dork kernel: error: [drm:pid1063:gen6_sanitize_pm] *ERROR* Power
management discrepancy: GEN6_RP_INTERRUPT_LIMITS expected 00070000, was 17000000
 
The is a similar Issue:
http://lists.freebsd.org/pipermail/freebsd-current/2015-February/054368.html
but no solution.

Any help will be highly appreciated.

Sincerely yours,
Alexei