kern/48916: OpenGL does not work with DRMKMS kernel and X.org intel driver

[ryoon%NetBSD.org@localhost]

>Number:         48916
>Category:       kern
>Synopsis:       OpenGL does not work with DRMKMS kernel and X.org intel driver
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Jun 16 14:25:00 +0000 2014
>Originator:     Ryo ONODERA
>Release:        NetBSD 6.99.43
>Organization:
        
>Environment:
        
        
System: NetBSD tellurium.elements.tetera.org 6.99.43 NetBSD 6.99.43 (DTRACE2) 
#31: Fri Jun 6 17:28:03 JST 2014 
ryo_on%tellurium.elements.tetera.org@localhost:/usr/obj/amd64/sys/arch/amd64/compile/DTRACE2
 amd64
Architecture: x86_64
Machine: amd64
>Description:
OpenGL porgram, for example, glxgear and Blender from pkgsrc/graphics/blender
cannot start with following error.

% glxgears
Unrecognized deviceID 166
X Error of failed request:  BadAlloc (insufficient resources for operation)
  Major opcode of failed request:  154 (GLX)
  Minor opcode of failed request:  3 (X_GLXCreateContext)
  Serial number of failed request:  27
  Current serial number in output stream:  29

On same machine, non-DRMKMS kernel and vesa driver do not cause this error.
And DRMKMS kernel and wsfb driver do not cause this error too.
        
>How-To-Repeat:
Run DRMKMS kernel and X.org intel driver from xsrc, and run glxgear or blender.
        
>Fix:
        
I have no idea.

>Unformatted: