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SubjectRe: X15 alpha release: as fast as TUX but in user space (fwd)
Hi!

> On 03 May 2001 09:13:00 +0200,
> kaih@khms.westfalen.de (Kai Henningsen) wrote:
> >pavel@suse.cz (Pavel Machek) wrote on 30.04.01 in <20010430104231.C3294@bug.ucw.cz>:
> >
> >> PS: Hmm, how do you do timewarp for just one userland appliation with
> >> this installed?
> >
> >1. What on earth for?
>
> Y10K testing :)
>
> >2. How do you do it today, and why wouldn't that work?
>
> LD_PRELOAD on a library that overrides gettimeofday(). I can see no
> reason why that would not continue to work. What would stop working
> are timewarp modules that intercepted the syscall at the kernel level
> instead of user space level.

...and would break ptrace too.

--
Philips Velo 1: 1"x4"x8", 300gram, 60, 12MB, 40bogomips, linux, mutt,
details at http://atrey.karlin.mff.cuni.cz/~pavel/velo/index.html.

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