[Vm-dev] Pi vm builds need a priority checker applet

tim Rowledge tim at rowledge.org
Thu Aug 18 03:38:13 UTC 2016

> On 17-08-2016, at 6:05 PM, David T. Lewis <lewis at mail.msen.com> wrote:
> Is there a specific error message that you see when you run without the sudo?
> For example, if you connect to the Pi display with xrdp, then run Squeak from
> a terminal window, then I expect that you would see an error message in the
> console window indicating that the pthread priority could not be set. And then
> if you ran Squeak with sudo, there there would be no error. Is that right?

Yup. It’s the usual message about "pthread_setschedparam failed: Operation not permitted”. What makes me laugh’ (for certain odd definitions of the word laugh) is that one remote display setup fails, one is fine - but the first is ok with the composition input class of window and the second isn’t. I suppose the fact that it appears to have been an issue for several years is amusing too.

I guess that in the way of these things there will be some very small config parameter to tweak to make it all wonderful, but it seems like a lot of people have been looking for it….

tim Rowledge; tim at rowledge.org; http://www.rowledge.org/tim
Don't diddle code to make it faster; find a better algorithm.

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