i915_emit_cmds spamming

[Mikael Eriksson]

This message has started appearing in kern.log whenever i run opengl programs.

And it appears a lot, ~7000 times a second and I get only a 1-2 fps in gl programs.

This makes opengl unusable.

This is in linux-image-2.6.17-10-generic (2.6.17-10.29).

A small part of kern.log:
Oct 10 02:51:23 miffe-laptop kernel: [17179691.756000] i915_emit_cmds(365)
Oct 10 02:51:23 miffe-laptop kernel: [17179691.756000] i915_emit_cmds(369)
Oct 10 02:51:23 miffe-laptop kernel: [17179691.756000] i915_emit_cmds(374)
Oct 10 02:51:23 miffe-laptop kernel: [17179691.756000] i915_emit_cmds(369)
Oct 10 02:51:23 miffe-laptop kernel: [17179691.756000] i915_emit_cmds(374)
Oct 10 02:51:23 miffe-laptop kernel: [17179691.756000] i915_emit_cmds(369)
Oct 10 02:51:23 miffe-laptop kernel: [17179691.756000] i915_emit_cmds(374)
Oct 10 02:51:23 miffe-laptop kernel: [17179691.756000] i915_emit_cmds(369)
Oct 10 02:51:23 miffe-laptop kernel: [17179691.756000] i915_emit_cmds(374)
Oct 10 02:51:23 miffe-laptop kernel: [17179691.756000] i915_emit_cmds(369)
Oct 10 02:51:23 miffe-laptop kernel: [17179691.756000] i915_emit_cmds(374)
Oct 10 02:51:23 miffe-laptop kernel: [17179691.756000] i915_emit_cmds(359)
Oct 10 02:51:23 miffe-laptop kernel: [17179691.756000] i915_emit_cmds(362)
Oct 10 02:51:23 miffe-laptop kernel: [17179691.756000] validate_cmd( 54100004(2) ): 6

[Caroline Ford (secretlondon)]

When did it start happening? Is there a specific update?

[Mikael Eriksson (mikael-eriksson)]

It started with linux-source-2.6.17 (2.6.17-10.29).
Reverting back to .28 fixes the problem.

[michelem (michele-marcucci)]

i confirm the same with a Dell latitude D610 (i810)

[ruffneckc (ruffneckc)]

Just updated to 2.6.17-10.30 and this seems to correct the issues thus far. Thank You.

[Mikael Eriksson (mikael-eriksson)]

.30 fixes it for me too.