Xorg/drm failure

[Andreas Wrede <andreas%planix.com@localhost>]

On a 4.99.73/amd64 system built with MKXORG=YES from today's sources,  
during the startup of X the initialization of drm fails with the  
following messages:

error: [drm:pid161:drm_addmap] *ERROR* offset/size not page aligned:  
0x0/0x4800
error: [drm:pid161:mga_do_agp_dma_bootstrap] *ERROR* Unable to map  
WARP microcode: 22
error: [drm:pid161:drm_addmap] *ERROR* offset/size not page aligned:  
0x0/0x4800
error: [drm:pid161:mga_do_pci_dma_bootstrap] *ERROR* Unable to create  
mapping for WARP microcode: 22

Any ideas?

From Xorg.log:

(--) MGA(0): 16 DWORD fifo
(==) MGA(0): Default visual is TrueColor
(II) MGA(0): [drm] bpp: 32 depth: 24
(II) MGA(0): [drm] Sarea 2200+664: 2864
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 5, (OK)
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 5, (OK)
drmOpenByBusid: Searching for BusID pci:0000:01:00.0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 5, (OK)
drmOpenByBusid: drmOpenMinor returns 5
drmOpenByBusid: drmGetBusid reports pci:0000:01:00.0
(II) [drm] DRM interface version 1.2
(II) [drm] DRM open master succeeded.
(II) MGA(0): [drm] Using the DRM lock SAREA also for drawables.
(II) MGA(0): [drm] framebuffer handle = 0xec000000
(II) MGA(0): [drm] added 1 reserved context for kernel
(II) MGA(0): X context handle = 0x1
(II) MGA(0): [drm] installed DRM signal handler
(EE) MGA(0): [drm] Could not boot-strap DMA (-22)
(II) MGA(0): [drm] removed 1 reserved context for kernel
(II) MGA(0): [drm] unmapping 8192 bytes of SAREA 0x7fff800002ab5000 at  
0x7f7ffdfd8000
(II) MGA(0): [drm] Closed DRM master.
(==) MGA(0): Backing store disabled

From dmesg:

agp0 at pchb0: 1 Miscellaneous Control unit(s) found.
agp0: aperture at 0xf0000000, size 0x4000000
ppb0 at pci0 dev 1 function 0: vendor 0x1106 product 0xb188 (rev. 0x00)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled
vga0 at pci1 dev 0 function 0: vendor 0x102b product 0x0525 (rev. 0x03)
wsdisplay0 at vga0 kbdmux 1: console (80x25, vt100 emulation), using  
wskbd0
wsmux1: connecting to wsdisplay0
mgadrm0 at vga0: Matrox G400/G450 (AGP) (unit 0)
mgadrm0: AGP at 0xf0000000 64MB
mgadrm0: Initialized mga 3.2.2 20060319

# cpuctl identify 0
cpu0: AMD Athlon 64 or Sempron (686-class), 2202.98 MHz, id 0xfc0
cpu0: features 78bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu0: features 78bfbff<PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX>
cpu0: features 78bfbff<FXSR,SSE,SSE2>
cpu0: features3 e1d3fbff<SCALL/RET,NOX,MXX,LONG,3DNOW2,3DNOW>
cpu0: "AMD Athlon(tm) 64 Processor 3200+"
cpu0: I-cache 64KB 64B/line 2-way, D-cache 64KB 64B/line 2-way
cpu0: L2 cache 1MB 64B/line 16-way
cpu0: ITLB 32 4KB entries fully associative, 8 4MB entries fully  
associative
cpu0: DTLB 32 4KB entries fully associative, 8 4MB entries fully  
associative
cpu0: Initial APIC ID 0
cpu0: AMD Power Management features:
cpu0: family 0f model 0c extfamily 00 extmodel 00

--
    aew

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