linux-kernel - Re: Linux 2.6.32.60

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Date:	Wed, 10 Oct 2012 16:05:32 +0200
From:	Romain Francoise <romain@...bokech.com>
To:	Willy Tarreau <w@....eu>
Cc:	linux-kernel@...r.kernel.org, stable@...r.kernel.org, hpa@...or.com
Subject: Re: Linux 2.6.32.60

Hi Willy,

Willy Tarreau <w@....eu> writes:

> I've just released Linux 2.6.32.60.

> This release contains, among others, a number of fixes for random and NTP,
> including for the NTP leap second bug. Users should upgrade.

I'm somewhat surprised to see that it also includes a new feature, namely
support for Intel's new RDRAND instruction to get random bits ("Bull
Mountain"):

67c1930 ("x86, random: Verify RDRAND functionality and allow it to be disabled")
5e6321d ("x86, random: Architectural inlines to get random integers with RDRAND")

This was apparently backported from 3.2 via Paul's 2.6.34 tree. Did you
test this release on a CPU with RDRAND? The commits are small, but they
don't really qualify as bugfix-only...

In v3.0-stable the various changes to mix more randomness in the entropy
pool were backported without this feature.

Thanks,
-r

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