[uml-devel] Re: [uml-user] Sources of entropy?

[uml-devel] Re: [uml-user] Sources of entropy?

[roland]

hi, 
afaik, uml still has a general problem with /dev/random entropy.
please read:
http://marc.theaimsgroup.com/?l=user-mode-linux-devel&m=107914271712404&w=2

proxying /dev/random from the host sounds like a good solution.
is there work in progress ?

regards
roland


----- Original Message ----- 
From: "Chris Snyder" <csnyder@mvpsoft.com>
To: <user-mode-linux-user@lists.sourceforge.net>
Sent: Saturday, May 22, 2004 10:18 PM
Subject: [uml-user] Sources of entropy?


> I'm having a problem with a UML that I have set up as a Kerberos server: 
> starting the Kerberos Admin Daemon takes around ten minutes because 
> there is very little entropy available in the UML, making reads from 
> /dev/random block. Has anyone else ran into this problem? How can I most 
> effectively deal with this? Thanks in advance.
> 
> 
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Re: [uml-devel] Re: [uml-user] Sources of entropy?

[Henrik Nordstrom]

On Sun, 23 May 2004, roland wrote:

> afaik, uml still has a general problem with /dev/random entropy.
> please read:
> http://marc.theaimsgroup.com/?l=user-mode-linux-devel&m=107914271712404&w=2
> 
> proxying /dev/random from the host sounds like a good solution.

Better yet to implement a /dev/random entropy source in UML using the host 
/dev/random..  it should be as simple as a kernel thread polling for write 
on the UML /dev/random, pulling entropy in from the host as needed.

But if it is possible to proxy devices then obviously the above can easily
be done in a normal user process, moving entropy from the proxied random
device to the UML random device.

Regards
Henrik



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