Scheduler fixes for hyperthreading
Poul-Henning Kamp
phk at phk.freebsd.dk
Sun May 22 01:32:06 PDT 2005
In message <1116729865.1917.92.camel at palm>, Stephan Uphoff writes:
>Would it be enough to disable access to RDTSC for user processes?
>I believe the attack needs a very exact time source.
You'd be surprised how much software breaks if you do that :-(
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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