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Date: Sun, 18 Jun 2017 10:04:58 +0200
From: Stephan Müller <smueller@...onox.de>
To: Lee Duncan <lduncan@...e.com>
Cc: "Jason A. Donenfeld" <Jason@...c4.com>, Theodore Ts'o <tytso@....edu>, Linux Crypto Mailing List <linux-crypto@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>, kernel-hardening@...ts.openwall.com, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, David Miller <davem@...emloft.net>, Eric Biggers <ebiggers3@...il.com>, "Nicholas A. Bellinger" <nab@...ux-iscsi.org>, Chris Leech <cleech@...hat.com>, open-iscsi@...glegroups.com
Subject: Re: Re: [PATCH v4 06/13] iscsi: ensure RNG is seeded before use
Am Samstag, 17. Juni 2017, 05:45:57 CEST schrieb Lee Duncan:
Hi Lee,
> In your testing, how long might a process have to wait? Are we talking
> seconds? Longer? What about timeouts?
>
In current kernels (starting with 4.8) this timeout should clear within a few
seconds after boot.
In older kernels (pre 4.8), my KVM takes up to 90 seconds to reach that
seeding point. I have heard that on IBM System Z this trigger point requires
minutes to be reached.
Ciao
Stephan
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