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Date:      Sat, 9 May 2009 14:13:13 +0200
From:      Ed Schouten <ed@80386.nl>
To:        Lars Engels <lars.engels@0x20.net>
Cc:        FreeBSD Hackers <freebsd-hackers@freebsd.org>, jt@0xabadba.be, vasanth raonaik <vasanth.raonaik@gmail.com>
Subject:   Re: concurrent sysctl implementation
Message-ID:  <20090509121313.GA58540@hoeg.nl>
In-Reply-To: <20090509113459.GD56667@e.0x20.net>
References:  <a0806f900905050107u4cbf0624oc83aafa54ae651f0@mail.gmail.com> <d9f479c10905050239u5d6d8304y1f63e41eabee8624@mail.gmail.com> <20090508214117.GY58540@hoeg.nl> <20090509113459.GD56667@e.0x20.net>

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Hi Lars,

* Lars Engels <lars.engels@0x20.net> wrote:
> Why is sysctl used to get a random number? Can't we get a different
> source for it?

We probably could. I think I discussed this with Robert Watson some time
ago and we could use things like ELF hints. But still, that doesn't
prevent us from reaching this limitation later on.

I think other people (Rink Springer) also reported this issue years ago,
even before we had the stack protector enabled.

--=20
 Ed Schouten <ed@80386.nl>
 WWW: http://80386.nl/

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