On Thu, Aug 30, 2018 at 11:49:56AM +0200, Pierre Labastie wrote:
> Hi list,
>
> But I wanted also to mention that there seem to be a lot of
> plugins about randomization and entropy. Maybe their
> presence (or absence) might explain
> Ken's difficulties (thread starting at
> http://lists.linuxfromscratch.org/pipermail/blfs-support/2018-June/080154.html)
> (or not)...
>
Hi Pierre,
according to Documentation/gcc-plugins.txt:
GCC plugins are loadable modules that provide extra features to the
compiler [1]_. They are useful for runtime instrumentation and static
analysis. We can analyse, change and add further code during
compilation via callbacks [2]_, GIMPLE [3]_, IPA [4]_ and RTL passes
[5]_.
(snipped the rest, and the references).
So, it is something for kernel developers. My issue seems to be due
to unspecified changes in the kernel's calculation of entropy (and
variations probably made bisection unreliable). I've accepted that
I'll need haveged on (at least) the low-end AMD box without an RNG,
and for the moment I'm now building it on all desktops. For 4.19 I
should be able to decide to trust the machine's RNG on those with
low entropy. For servers, at the moment no idea - my test server
build has a single spinning rust drive, seems ok for entropy with
the latest stable kernel (4.14.67) on 8.3.
ĸen
--
Also Spuke Zerothruster
(Finnegans Wake)
--
http://lists.linuxfromscratch.org/listinfo/lfs-support
FAQ: http://www.linuxfromscratch.org/blfs/faq.html
Unsubscribe: See the above information page
Do not top post on this list.
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
http://en.wikipedia.org/wiki/Posting_style
