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From: Stephan Seitz <s.seitz@netz-haut.de>
To: XEN Devel - listmembers <xen-devel@lists.xensource.com>,
	XEN User - listmembers <xen-users@lists.xensource.com>
Subject: Re: [Xen-users] Re: dom0 and domU /dev/urandom generating too less entropy
Date: Thu, 11 Oct 2007 18:10:56 +0200	[thread overview]
Message-ID: <470E4B10.1050302@netz-haut.de> (raw)
In-Reply-To: <470E411D.6030207@microbus.com>


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> Robbie Dinn wrote:
>> Keir Fraser wrote:

Thanks for your suggestions Keir and Robbie,

but it looks like /dev/urandom is used by sshd, but somewhere inside of sshd the stream is checked against a minimum
entropy. I don't think this is a an issue by getting blocked via /dev/random.

I'll try the userspace rngd, but - as you said - this shouldn't be the preferred method of getting more entropy into
the system.

Another thing i'll try (later at night, as the domU's are productive) is, to configure the domU's using the same pCPU's
targetting that the pCPU's cache is filled only sub-optimal and the latency is higher ... (maybe ;) )

I'll report here later.

Greetings

Stephan




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      reply	other threads:[~2007-10-11 16:10 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-10 20:00 dom0 and domU /dev/urandom generating too less entropy Stephan Seitz
2007-10-11  7:27 ` Keir Fraser
2007-10-11 11:44   ` [Xen-users] " Robbie Dinn
2007-10-11 15:28     ` Re: [Xen-devel] " Robbie Dinn
2007-10-11 16:10       ` Stephan Seitz [this message]

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