Re: Scheduler fixes for hyperthreading

From: Sam Lawrance (boris_at_brooknet.com.au)
Date: 05/22/05

  • Next message: Colin Percival: "Re: Scheduler fixes for hyperthreading" 
    To: Colin Percival <cperciva@freebsd.org>
Date: Sun, 22 May 2005 15:10:28 +1000

    On Sat, 2005-05-21 at 22:04 -0700, Colin Percival wrote:
    > Sam Lawrance wrote:
    > > I'm just curious here... would the mac_seeotheruids policy help in
    > > obscuring the value of any information collected by a spy process?
    >
    > Yes. It would mean that the spy could steal an SSL certificate, but
    > not know whose SSL certificate it was. :-)

    Can the spy be sure that it's not just stealing fortunes though?

    I mean for example, can the cache timings shown on page 7 of your paper
    be used to reliably identify what the other thread on the CPU is?

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