Bug#948519: insufficient boot-time entropy on arm64 virtual machines

[Noah Meyerhans <noahm@debian.org>]

On Thu, Jan 09, 2020 at 02:00:01PM -0500, Noah Meyerhans wrote:
> The 5.4 kernel currently in sid does not experience this lack of
> entropy.  It has been suggested that upstream commit 50ee7529ec45
> ("random: try to actively add entropy rather than passively wait for
> it") may be the difference here, but I have not confirmed this.

I've tested 4.19 with the changes from 50ee7529ec45, and it appears to
do the expected thing.  The kernel claims to have enough entropy at boot
that ssh host key generation happens quickly.

This change is likely to also address #931644.  I've asked the submitter
of that bug if they'd be able to test a proposed fix.

I will prepare a merge request and note it here when it's available.

noah