Re: Radeon Rv790 "Forbidden register 0x0030 in cs at 9"

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On Thu, Oct 31, 2013 at 7:58 AM, Andy Furniss <adf.lists@xxxxxxxxx> wrote:
> Noticed this in dmesg today, it doesn't seem to break anything and it's not
> reproducable.
>
> [ 2605.261326] Forbidden register 0x0030 in cs at 9
> [ 2605.261335] [drm:radeon_cs_ib_chunk] *ERROR* Invalid command stream !
>
> Seems it was triggered by mplayer using vdpau just for display, though
> grepping kern.log only found one other on Oct 22nd.

Probably an invalid packet count set somewhere in the driver in
certain cases.  Causes part of a packet to get treated as another
packet.

Alex

>
> mplayer has been used far more than just twice in this period.
>
> Running drm-fixes today and drm-next on the 22nd.
>
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