Messages in this thread | | | Subject | Re: Random Register Contents | From | Andi Kleen <> | Date | 01 Nov 1998 09:41:52 +0100 |
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In article <19981031181957.I11587@perlsupport.com>, Chip Salzenberg <chip@perlsupport.com> writes: > According to John Reiser: >> I'm working on a product where it is desirable for a process to have as >> much run-to-run repeatability as possible. I've run into problems with >> exec() introducing needless randomness via the registers.
> And random register contents are a problem because ... ??
... because conservative garbage collectors use the registers as root set. Also in theory it is a covert channel.
-Andi
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