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I am try to solve a very weird X problem, and I have noticed that changing number of CPU cores of the machine that NetBSD runs on may help me to solve it.

What I wish to do is to give NetBSD 8 cores to run, however tell NetBSD to only use 7 of them. How to do this? Is it possible to do so?

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That seems kind of extreme for an X problem. –  terdon Oct 21 '12 at 5:54
NetBSD 6 guest operating system in VMware workstation. startx fails with a chance according to number of CPU allocated to guest. I have filed a problem report and I wish to provide some more information to the maintainer. VMware workstation does not allow me to allocate 5 or 7 CPUs however, so I must try to turn them off in NetBSD. –  Howard Oct 21 '12 at 6:29

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