Re: Intel 965G: i915_dispatch_cmdbuffer failed (2.6.19-rc2)

[Ryan Richter <ryan@tau.solarneutrino.net>]

On Wed, Oct 18, 2006 at 07:54:41AM +0100, Keith Whitwell wrote:
> This is all a little confusing as the driver doesn't really use that 
> path in normal operation except for a single command - MI_FLUSH, which 
> is shared between the architectures.  In normal operation the hardware 
> does the validation for us for the bulk of the command stream.  If there 
>  were missing functionality in that ioctl, it would be failing 
> everywhere, not just in this one case.
> 
> I guess the questions I'd have are
> 	- did the driver work before the kernel upgrade?
> 	- what path in userspace is seeing you end up in this ioctl?
> 	- and like Keith, what commands are you seeing?
> 
> The final question is interesting not because we want to extend the 
> ioctl to cover those, but because it will give a clue how you ended up 
> there in the first place.

Here's a list of all the failing commands I've seen so far:

3a440003
d70003
2d010003
e5b90003
2e730003
8d8c0003
c10003
d90003
be0003
1e3f0003

-ryan
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