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Re: On PATH_MAX


From: Jonathan S. Shapiro
Subject: Re: On PATH_MAX
Date: Thu, 10 Nov 2005 11:49:03 -0500

On Thu, 2005-11-10 at 15:22 +0100, Bas Wijnen wrote:
> > So yes, I think we can dramatically increase the magnitude of the
> > problem with just about any form of concurrency you care to try. We can
> > convert a program that was not real time into a program that is both not
> > real time and now is subject to storage denial of resource too!
> 
> Such state is indeed needed in this case.  But it can be stored on
> client-supplied memory.  What is needed is that the state is copied into a
> static server buffer when starting to handle the request, and copying it back
> when the request is delayed again.  At those two moment do we need to accept
> page faults, because the client can misbehave or be destroyed.  For the rest,
> I think everything should be normal.

Bas:

You build yours, and I will build mine. Mine will be in production two
years before yours is debugged enough to ship, and yours will *never* be
bug free.


shap





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