HD4550 DRI issues
Robert Noland
rnoland at FreeBSD.org
Sat Sep 26 15:02:26 UTC 2009
On Fri, 2009-09-25 at 23:57 -0500, Richard Kolkovich wrote:
> On Fri, Sep 25, 2009 at 07:41:29PM -0500, Robert Noland wrote:
> > We might go down that path... But, I've had an idea. I'll try and whip
> > up a test client that bypasses all of X and just exercises drm. We can
> > see if it still seems to corrupt things. The evidence so far suggests
> > that it should, but it should rule out any races. One thing you might
> > try as a test is to disable SMP just to see if that helps.
> >
>
> Disabling SMP did not help. I'll await the test client...
Ok, attached is a really simple client that will allocate 32MB of
scatter-gather memory and map a 1MB ring buffer out of that. The
"contents" values should always be 0. Build the client with:
gcc -O2 -pipe -I/usr/local/include -I/usr/local/include/drm
-L/usr/local/lib -ldrm -o drm-test drm-test.c
To perform the test, you will need to boot up in console. (No X)
Manually kldload the radeon driver and then as root execute drm-test.
robert.
> > robert.
> >
> > --
> > Robert Noland <rnoland at FreeBSD.org>
> > FreeBSD
> >
>
--
Robert Noland <rnoland at FreeBSD.org>
FreeBSD
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