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From "Stephen C. Tweedie" <>
Subject Re: /dev/poll vs. aio_ (was: Re: Proposal: Get rid of most accept mutex)calls on hybrid server.)
Date Sat, 29 May 1999 01:53:44 GMT

On Sat, 29 May 1999 07:51:25 +1000, Richard Gooch <> said:

> Why not just increase the RT signal queue size? Add a command to
> prctl(2) so the application can tune this.

Letting the application increase the queue size opens up a DOS attack:
you can lock down arbitrarily much non-swappable memory with it.  root
can already tune it via /proc/sys/kernel/rtsig-max.


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