radeon: *ERROR* Buffer to small for return answer

[Ortwin Glück]

I am seeing this on a 4670 M96XT RV730 (iMac 11,2) with 2.6.37-rc5

[drm:radeon_process_aux_ch] *ERROR* Buffer to small for return answer 1 16


[drm] Initialized drm 1.1.0 20060810
[drm] radeon defaulting to kernel modesetting.
[drm] radeon kernel modesetting enabled.
[drm] initializing kernel modesetting (RV730 0x1002:0x9488).
[drm] register mmio base: 0xD0420000
[drm] register mmio size: 65536
[drm] Detected VRAM RAM=256M, BAR=256M
[drm] RAM width 128bits DDR
[drm] radeon: 256M of VRAM memory ready
[drm] radeon: 512M of GTT memory ready.
[drm] radeon: irq initialized.
[drm] GART: num cpu pages 131072, num gpu pages 131072
[drm] Loading RV730 Microcode
[drm] ring test succeeded in 1 usecs
[drm] radeon: ib pool ready.
[drm] ib test succeeded in 0 usecs
[drm] Enabling audio support
[drm] Radeon Display Connectors
[drm] Connector 0:
[drm]   DisplayPort
[drm]   HPD1
[drm]   DDC: 0x7e40 0x7e40 0x7e44 0x7e44 0x7e48 0x7e48 0x7e4c 0x7e4c
[drm]   Encoders:
[drm]     DFP1: INTERNAL_UNIPHY
[drm] Connector 1:
[drm]   eDP
[drm]   HPD2
[drm]   DDC: 0x7e50 0x7e50 0x7e54 0x7e54 0x7e58 0x7e58 0x7e5c 0x7e5c
[drm]   Encoders:
[drm]     LCD1: INTERNAL_UNIPHY
[drm] Connector 2:
[drm]   VGA
[drm]   DDC: 0x7f10 0x7f10 0x7f14 0x7f14 0x7f18 0x7f18 0x7f1c 0x7f1c
[drm]   Encoders:
[drm]     CRT2: INTERNAL_KLDSCP_DAC2
[drm] Special thermal controller config
[drm] radeon: power management initialized
[drm:radeon_process_aux_ch] *ERROR* Buffer to small for return answer 1 16
[drm] fb mappable at 0xC0142000
[drm] vram apper at 0xC0000000
[drm] size 3145728
[drm] fb depth is 24
[drm]    pitch is 4096
fb0: radeondrmfb frame buffer device
drm: registered panic notifier
[drm] Initialized radeon 2.7.0 20080528 for 0000:01:00.0 on minor 0