Bug#550977:

[Alberto Luaces]

Hello,

I also happen to suffer from the same bug. Same card, the Mobility
Radeon 7500, but different laptop: ThinkPad R51.

glxgears works with a similar warning to the one already posted:

*********************************WARN_ONCE*********************************
File radeon_tcl.c function radeon_run_tcl_render line 499
Rendering was 79 commands larger than predicted size. We might overflow
command buffer.
***************************************************************************

Any other OpenGL program more complex than that, like Blender or
World Of Goo fails: sometimes freezes, sometimes segfaults... and then the
filesystem gets corrupt, so I can only reboot and launch fsck in order
to recover it.

--

Alberto



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[Ben Hutchings-3]

On Mon, 2009-11-09 at 17:34 +0100, Alberto Luaces wrote:

> Hello,
>
> I also happen to suffer from the same bug. Same card, the Mobility
> Radeon 7500, but different laptop: ThinkPad R51.
>
> glxgears works with a similar warning to the one already posted:
>
> *********************************WARN_ONCE*********************************
> File radeon_tcl.c function radeon_run_tcl_render line 499
> Rendering was 79 commands larger than predicted size. We might overflow
> command buffer.
> ***************************************************************************
>
> Any other OpenGL program more complex than that, like Blender or
> World Of Goo fails: sometimes freezes, sometimes segfaults... and then the
> filesystem gets corrupt, so I can only reboot and launch fsck in order
> to recover it.

Have you tested Linux 2.6.31 yet?  This is the current version in
unstable.

Ben.

--
Ben Hutchings
Unix is many things to many people,
but it's never been everything to anybody.

[Alberto Luaces]

Hi Ben,

Ben Hutchings writes:
> Have you tested Linux 2.6.31 yet?  This is the current version in
> unstable.

I tried yesterday that .deb from Sid. Blender keeps segfaulting and
WorldOfGoo shows corrupted textures and then hangs. Luckily, I could be
able to use Alt+SysReq S,U,B in order to avoid the filesystem
corruption.

I have also tried the system on Gentoo. The combination of kernel 2.6.30
and mesa 7.5.1 works, but upgrading mesa to 7.6.1 (Gallium disabled)
also locks Blender.

--

Alberto



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