Unfortunately, for these kinds of bugs the backtrace in Xorg.0.log tends not to reveal much - just that the server was unable to communicate with the GPU's "event queue" for some reason, and the server noticed graphics data was not getting consumed. That's what the 'EQ overflowing' message means. The backtraces don't show anything useful, they just point to the mieqEnqueue routine where it noticed the GPU had hung.
Is anyone able to reproduce this on natty userspace + natty kernel?
Unfortunately, for these kinds of bugs the backtrace in Xorg.0.log tends not to reveal much - just that the server was unable to communicate with the GPU's "event queue" for some reason, and the server noticed graphics data was not getting consumed. That's what the 'EQ overflowing' message means. The backtraces don't show anything useful, they just point to the mieqEnqueue routine where it noticed the GPU had hung.
Is anyone able to reproduce this on natty userspace + natty kernel?