kern/49433: NetBSD/amd64 7.99.2 does not boot on Panasonic CF-Y8

[ryoon%NetBSD.org@localhost]

>Number:         49433
>Category:       kern
>Synopsis:       NetBSD/amd64 7.99.2 does not boot on Panasonic CF-Y8
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Nov 30 03:05:00 +0000 2014
>Originator:     Ryo ONODERA
>Release:        NetBSD 7.99.2
>Organization:
	
>Environment:
	
	
System: NetBSD angelcake.elements.tetera.org 7.99.2 NetBSD 7.99.2 (GENERIC) #0: Thu Nov 27 14:44:25 JST 2014 ryo_on%angelcake.elements.tetera.org@localhost:/usr/world/7.99/amd64/obj/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:
NetBSD/amd64 7.99.2 does not boot on Panasonic CF-Y8.
Frozen with the following message, no spontaneous reboot.

i915drmkms0: pci0 dev 2 function 0
drm: Memory usable by graphics device = 512M
drm: Supports vblank timestamp caching Rev 2 (21.10.2013).
drm: Driver supports precise vblank timestamp query.
i915drmkms0: interrupting at ioapic0 pin 16 (i915)
DRM error in init_ring_common: render ring initialization failed ctl 0001f001 head 7b897f8c tail 00000000 start 00000300
warning: /home/source/ab/HEAD/src/sys/external/bsd/drm2/dist/drm/i915/intel_pm.c:5734: !power_domains->domain_use_count[domain]
(frozen)

>How-To-Repeat:
Boot NetBSD/amd64 7.99.2 on Panasonic CF-Y8.

>Fix:
	
I have no idea.

>Unformatted: