From: Andreas Dilger <adilger@clusterfs.com>
To: Jeff Dike <jdike@karaya.com>
Cc: Pavel Machek <pavel@suse.cz>,
linux-kernel@vger.kernel.org,
user-mode-linux-user@lists.sourceforge.net
Subject: Re: [uml-user] Re: user-mode port 0.56-2.4.18-15
Date: Tue, 9 Apr 2002 21:53:12 -0600 [thread overview]
Message-ID: <20020410035312.GG424@turbolinux.com> (raw)
In-Reply-To: <20020409221716.GI5148@atrey.karlin.mff.cuni.cz> <200204100144.UAA05950@ccure.karaya.com>
On Apr 09, 2002 20:44 -0500, Jeff Dike wrote:
> Doesn't /dev/urandom have exactly the same DOS properties as /dev/random?
> I.e. it reads real random numbers until the entropy pool is empty, then
> starts returning pseudo-random numbers? If so, things on the host will
> still hang when they then try to read /dev/random.
You are correct. Reading from /dev/urandom consumes just as much
entropy as reading from /dev/random. It just doesn't block when the
entropy pool is random.
Hmm, maybe this should be fixed by refilling the urandom entropy pool
much less often...
Cheers, Andreas
--
Andreas Dilger
http://www-mddsp.enel.ucalgary.ca/People/adilger/
http://sourceforge.net/projects/ext2resize/
next prev parent reply other threads:[~2002-04-10 3:55 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-08 20:56 user-mode port 0.56-2.4.18-15 Jeff Dike
2002-04-08 1:25 ` Pavel Machek
2002-04-09 23:16 ` Jeff Dike
2002-04-09 22:17 ` Pavel Machek
2002-04-10 1:44 ` Jeff Dike
2002-04-10 3:53 ` Andreas Dilger [this message]
2002-04-10 21:14 ` David Wagner
2002-04-08 20:02 ` Robert Love
2002-04-08 23:09 ` Jeff Dike
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