Packet0 not allowed

[Esben Stien]

I get loads of these in dmesg: 

[950253.948694] radeon 0000:04:00.0: Packet0 not allowed!

For debugging purposes:
mesa-git.2014-07-03
llvm-3.4.2
linux-3.16-rc3
xf86-video-ati-7.4.0
xorg-server-1.14.2
glamor-egl-0.6.0

04:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Oland PRO [Radeon R7 240]

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