Re: [drm:init_ring_common] *ERROR* render ring head not reset to zero

From: Sriram
Date: Sun Dec 05 2010 - 16:30:22 EST


Chris Wilson <chris <at> chris-wilson.co.uk> writes:

>
> On Mon, 4 Oct 2010 22:31:20 +0200, Thomas Meyer <thomas <at> m3y3r.de> wrote:
> > [ 0.556247] [drm:init_ring_common] *ERROR* render ring head not reset to
zero ctl 00000000 head
> 02001000 tail 00000000 start 02001000
> > [ 0.556320] [drm:init_ring_common] *ERROR* render ring head forced to
zero ctl 00000000 head 00000000
> tail 00000000 start 02001000
> >
> > Bug or feature?
>
> Hardware feature, software bug. Could also be a feature of the software to
> report a hardware bug...
>
> At any rate, it shouldn't be happening and you are not alone at finding
> such errors in your logs.
> -Chris
>


Hi Chris,

Please explain what this error means & why it is happening...

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