Bug#912087: openssh-server: Slow startup after the upgrade to 7.9p1

From	Kurt Roeckx <kurt@roeckx.be>
Newsgroups	linux.debian.bugs.dist, linux.kernel
Subject	Bug#912087: openssh-server: Slow startup after the upgrade to 7.9p1
Date	2018-11-02 01:30 +0100
Message-ID	<wPvvz-6V8-1@gated-at.bofh.it> (permalink)
References	(6 earlier) <wP7tf-103-5@gated-at.bofh.it> <wPtDs-5Qa-25@gated-at.bofh.it> <wPv2x-6wZ-7@gated-at.bofh.it> <wNLXP-1Xv-1@gated-at.bofh.it> <wPv2x-6wZ-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

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On Thu, Nov 01, 2018 at 07:50:35PM -0400, Theodore Y. Ts'o wrote:
> On Thu, Nov 01, 2018 at 11:18:14PM +0100, Sebastian Andrzej Siewior wrote:
> > Okay. So you wrote what can be done for a system with HW-RNG/kvm. On
> > bare metal with nothing fancy I have:
> > [    3.544985] systemd[1]: systemd 239 running in system mode. (+PAM…
> > [   10.363377] r8169 0000:05:00.0 eth0: link up
> > [   41.966375] random: crng init done
> > 
> > which means I have to wait about half a minute until I can ssh into. And
> > there is no way to speed it up?
> 
> So that surprises me.  Can you tell me more about the hardware?  Is it
> something like a Rasberry Pi?  Or is it an x86 server or desktop?  In
> my experience for most x86 platforms this isn't an issue.

The original poster had:
Architecture: amd64 (x86_64)
Kernel: Linux 4.18.0-2-amd64 (SMP w/2 CPU cores)

But I'm not sure if that's a real machine or some virtual host,
I'm going to guess it's a virtual host.

Anyway, on my laptop I get:
[   12.675935] random: crng init done

If the TPM is enabled, I also have an /etc/hwrng, but rng-tools is
started later after the init is done.

On my desktop (with a chaos key attached)
[    3.844484] random: crng init done
[    5.312406] systemd[1]: systemd 239 running in system mode.


Kurt

Thread

Bug#912087: openssh-server: Slow startup after the upgrade to 7.9p1 Sebastian Andrzej Siewior <sebastian@breakpoint.cc> - 2018-10-30 01:30 +0100
  Bug#912087: openssh-server: Slow startup after the upgrade to 7.9p1 "Theodore Y. Ts'o" <tytso@mit.edu> - 2018-10-30 15:20 +0100
    Bug#912087: openssh-server: Slow startup after the upgrade to 7.9p1 Kurt Roeckx <kurt@roeckx.be> - 2018-10-30 19:40 +0100
      Bug#912087: openssh-server: Slow startup after the upgrade to 7.9p1 "Theodore Y. Ts'o" <tytso@mit.edu> - 2018-10-30 22:00 +0100
        Bug#912087: openssh-server: Slow startup after the upgrade to 7.9p1 Sebastian Andrzej Siewior <sebastian@breakpoint.cc> - 2018-10-31 13:00 +0100
          Bug#912087: openssh-server: Slow startup after the upgrade to 7.9p1 "Theodore Y. Ts'o" <tytso@mit.edu> - 2018-10-31 23:50 +0100
            Bug#912087: openssh-server: Slow startup after the upgrade to 7.9p1 Sebastian Andrzej Siewior <sebastian@breakpoint.cc> - 2018-11-01 23:30 +0100
              Bug#912087: openssh-server: Slow startup after the upgrade to 7.9p1 "Theodore Y. Ts'o" <tytso@mit.edu> - 2018-11-02 01:00 +0100
                Bug#912087: openssh-server: Slow startup after the upgrade to 7.9p1 Kurt Roeckx <kurt@roeckx.be> - 2018-11-02 01:30 +0100
                Bug#912087: openssh-server: Slow startup after the upgrade to 7.9p1 "Theodore Y. Ts'o" <tytso@mit.edu> - 2018-11-02 03:20 +0100
                Bug#912087: openssh-server: Slow startup after the upgrade to 7.9p1 Sebastian Andrzej Siewior <sebastian@breakpoint.cc> - 2018-11-04 01:30 +0100

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