On Sun, Nov 21, 2010 at 1:51 PM, Jean Delvare khali@linux-fr.org wrote:
Hi Alex,
Thanks for your fast answer.
On Sun, 21 Nov 2010 11:12:32 -0500, Alex Deucher wrote:
On Sun, Nov 21, 2010 at 9:38 AM, Jean Delvare khali@linux-fr.org wrote:
Running 2.6.37-rc2-git7 on x86_64, wine fails to start. I get the following error in the kernel logs:
radeon 0000:07:00.0: r600_cs_track_validate_cb offset[0] 0 2095360 4096 too big radeon 0000:07:00.0: r600_packet3_check:1331 invalid cmd stream 484 [drm:radeon_cs_ioctl] *ERROR* Invalid command stream !
Hardware is: 07:00.0 VGA compatible controller: ATI Technologies Inc RV710 [Radeon HD 4350] 07:00.1 Audio device: ATI Technologies Inc RV710/730
X.org version is 7.5.
With kernel 2.6.36, wine works just fine on the same system. Does it ring a bell to anyone? Any clue how to investigate this bug? If not, I can start a bisection.
I can also provide any additional data you need for investigation.
It's probably this patch: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdif...
Your guess was correct: after applying the above patch to kernel 2.6.36, I get the same problem.
Which exposes a bug in the 3D driver in certain cases. For some reason we get a cb height of 8192 or greater in some cases in the 3D driver. I haven't had time to look into why. You might try r600g for comparison.
Not sure how to "try r600g"?
It's a newer driver for r6xx+ hardware. Configure mesa (http://cgit.freedesktop.org/mesa/mesa) with --enable-gallium-r600.
I actually talked to Dave earlier today, and the problem is more likely a command buffer getting flushed at the wrong time leading to a buffer without cb info in it.
Alex
-- Jean Delvare