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Re: Restricting rdtsc [was: kernel aslr]

On Tue, Mar 28, 2017 at 11:30:52AM -0500, David Young wrote:
> [...]
> What do you mean by "legitimately" use rdtsc?  It seems to me that it
> is legitimate for a user to use a high-resolution timer to profile some
> code that's under development.  They may want to avoid running that code
> with root privileges under most circumstances.

At the very last a sysctl to remove the restriction is needed.

Manuel Bouyer <>
     NetBSD: 26 ans d'experience feront toujours la difference

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