2.6.33-rc4: i915/drm : error in execbuffer

2.6.33-rc4: i915/drm : error in execbuffer

[Paul Rolland]

Hello,

Since I've upgraded from -rc3 to -rc4, I'm getting these errors :

[drm:i915_gem_execbuffer] *ERROR* i915_gem_do_execbuffer returns -512

They are appearing from time to time in my log messages, and I can't
relate them to any activity I may have with the machine.

My machine is a Dell Vostro1520, running a 64bit system.
[root@tux linux]# lspci -n
00:00.0 0600: 8086:2a40 (rev 07)
00:02.0 0300: 8086:2a42 (rev 07)
00:02.1 0380: 8086:2a43 (rev 07)
...

.config available on request if needed.

Regards,
Paul

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Re: 2.6.33-rc4: i915/drm : error in execbuffer

[Paul Rolland]

Hello,

On Sat, 16 Jan 2010 11:28:24 +0100
Paul Rolland (ポール・ロラン)  <rol@witbe.net> wrote:

> Since I've upgraded from -rc3 to -rc4, I'm getting these errors :
> 
> [drm:i915_gem_execbuffer] *ERROR* i915_gem_do_execbuffer returns -512
> 
> They are appearing from time to time in my log messages, and I can't
> relate them to any activity I may have with the machine.

Well, it seems they are related to my KDE changing the wallpaper : this is
configured to be done every two minutes, and here is my log this morning :

Jan 18 10:07:14 tux kernel: [drm:i915_gem_execbuffer] *ERROR* i915_gem_do_execbuffer returns -512

Jan 18 10:09:14 tux kernel: [drm:i915_gem_execbuffer] *ERROR* i915_gem_do_execbuffer returns -512
Jan 18 10:09:14 tux kernel: [drm:i915_gem_execbuffer] *ERROR* i915_gem_do_execbuffer returns -512

Jan 18 10:11:14 tux kernel: [drm:i915_gem_execbuffer] *ERROR* i915_gem_do_execbuffer returns -512
Jan 18 10:11:14 tux kernel: [drm:i915_gem_execbuffer] *ERROR* i915_gem_do_execbuffer returns -512
Jan 18 10:11:14 tux kernel: [drm:i915_gem_execbuffer] *ERROR* i915_gem_do_execbuffer returns -512

Jan 18 10:13:14 tux kernel: [drm:i915_gem_execbuffer] *ERROR* i915_gem_do_execbuffer returns -512
Jan 18 10:13:14 tux kernel: [drm:i915_gem_execbuffer] *ERROR* i915_gem_do_execbuffer returns -512

Is this a real error, or should it be a warning, as -512 seems to indicate
an ERESTARTSYS ?

Regards,
Paul