Messages in this thread | | | Date | Tue, 17 Oct 2006 13:40:20 -0400 | Subject | Re: Intel 965G: i915_dispatch_cmdbuffer failed (2.6.19-rc2) | From | Ryan Richter <> |
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On Sat, Oct 14, 2006 at 11:15:23AM -0700, Keith Packard wrote: > On Fri, 2006-10-13 at 15:45 -0400, Ryan Richter wrote: > > I have a new Intel 965G board, and I'm trying to get DRI working. > > Direct rendering is enabled, but all GL programs crash immediately. > > The message 'DRM_I830_CMDBUFFER: -22' is printed on the tty, and the > > kernel says: > > > > [drm:i915_cmdbuffer] *ERROR* i915_dispatch_cmdbuffer failed > > The 915 DRM validates commands sent to the card from the application to > ensure they aren't directing the card to access memory outside of the > graphics area. At present the module validates only 915/945 commands > correctly and the 965 uses slightly different commands. I haven't walked > over the entire GL library, but it seems possible that this error is > being caused by the mis-validation of the command stream. We need to > update the DRM driver to reflect the new commands, but in the meanwhile, > you might try disabling the validation in the kernel (which will expose > your system to a local root compromise) and seeing if that doesn't > eliminate this message.
So do I want something like
static int do_validate_cmd(int cmd) { return 1; }
in i915_dma.c?
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