Thanks, Garrett. I misdiagnosed the problem, and managed to fix it anyway.
But I will give pbind a spin (did not know about before).
On Jun 13, 2012 12:30 AM, "Garrett D'Amore" <[email protected]> wrote:

> Uh, don't run your computationally expensive process with real-time or
> fixed privileges?  In a *normal* situation you should never have to do any
> of this, even in the face of CPU hogs.
>
>  You probably can use pbind to bind your Xorg process to a CPU and to
> limit which CPUs the "computationally expensive" process is allowed to run
> on, assuming you have multiple CPUs (virtual CPUs that is...)
>
>  Garrett D'Amore
> [email protected]
>
>
>
>  On Jun 12, 2012, at 6:01 PM, Nick Zivkovic wrote:
>
>  So I use many xterms through dwm+xorg.
>
> It happens, sometimes, that I run a computationally (and memory)
> intensive program in a different xterm window from the cli, and xorg
> eventually becomes completely unresponsive.
>
> Is there a way to tell the Illumos kernel that it absolutely _can't_
> just take xorg off the CPU from beneath my feet?
>
> Because once that happens I have no way of killing the computationally
> expensive process, and must hard-reboot.
>
> This is the equivalent of a self-inflicted denial of service. What's
> worse it can be done unwittingly (if, for example, I didn't write the
> code).
>
> Thanks.
>
> --
> :.
> Blog: nickziv.wordpress.com
> Twitter: www.twitter.com/nickziv
>
>
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