Re: 2.6.37-rc2-git7 regression: wine fails to start

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On Sun, Nov 21, 2010 at 9:38 AM, Jean Delvare <khali@xxxxxxxxxxxx> 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=commitdiff;h=f30df2fad0c901e74ac9a52a488a54c69a373a41

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.

Alex

>
> --
> Jean Delvare
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