enabling networkd appears to eat up entropy
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
nplan (Ubuntu) |
Fix Released
|
Critical
|
Mathieu Trudel-Lapierre | ||
Xenial |
Fix Released
|
Undecided
|
Unassigned | ||
Zesty |
Fix Released
|
Undecided
|
Unassigned | ||
Artful |
Fix Released
|
Critical
|
Mathieu Trudel-Lapierre | ||
Bionic |
Fix Released
|
Critical
|
Mathieu Trudel-Lapierre | ||
openssh (Ubuntu) |
Fix Released
|
Critical
|
Dimitri John Ledkov | ||
Xenial |
Won't Fix
|
Undecided
|
Unassigned | ||
Zesty |
Won't Fix
|
Undecided
|
Unassigned | ||
Artful |
Fix Released
|
Critical
|
Dimitri John Ledkov | ||
Bionic |
Fix Released
|
Critical
|
Dimitri John Ledkov | ||
systemd (Ubuntu) |
Invalid
|
Critical
|
Dimitri John Ledkov | ||
Xenial |
Invalid
|
Undecided
|
Unassigned | ||
Zesty |
Invalid
|
Undecided
|
Unassigned | ||
Artful |
Invalid
|
Critical
|
Dimitri John Ledkov | ||
Bionic |
Invalid
|
Critical
|
Dimitri John Ledkov |
Bug Description
[Impact]
Booting systems have a limited amount of entropy, especially in some of the cloud cases. We should avoid using it up unnecessarily.
[Test cases]
== netplan ==
1) Boot system with netplan config; using networkd renderer
2) Validate that it starts and does not cause undue delay.
2b) strace nplan at boottime (the netplan generator at /lib/systemd/
3) Validate that config with NetworkManager renderer generates UUIDs.
[Regression potential]
Netplan depends on UUID generation to create correct networkManager configuration for VLANs. This is a specific use-case that is typically not hit, but any failure to generate valid NetworkManager configuration would be a regression from this SRU.
---
enabling networkd appears to eat up entropy
as seen in openssh autopkgtest failing, when networkd is enabled by default.
See http://
tags: | added: adt-fail |
Changed in systemd (Ubuntu): | |
status: | New → Triaged |
importance: | Undecided → Critical |
Changed in openssh (Ubuntu): | |
status: | New → Triaged |
importance: | Undecided → Critical |
assignee: | nobody → Dimitri John Ledkov (xnox) |
Changed in systemd (Ubuntu): | |
assignee: | nobody → Dimitri John Ledkov (xnox) |
tags: | removed: rls-aa-incoming |
tags: | added: id-59a82980f80facbe02e40d09 |
tags: | added: id-59e93e7ff29828fb76a5a779 |
description: | updated |
Changed in openssh (Ubuntu Zesty): | |
status: | New → Won't Fix |
Changed in openssh (Ubuntu Xenial): | |
status: | New → Won't Fix |
Changed in systemd (Ubuntu Xenial): | |
status: | New → Invalid |
Changed in systemd (Ubuntu Zesty): | |
status: | New → Invalid |
Changed in systemd (Ubuntu Artful): | |
status: | Triaged → Invalid |
Changed in systemd (Ubuntu Bionic): | |
status: | Triaged → Invalid |
This bug was fixed in the package openssh - 1:7.5p1-7ubuntu2
---------------
openssh (1:7.5p1-7ubuntu2) artful; urgency=medium
* Enable haveged during autopkgtest, as virtual machines appear to run
out of entropy when networkd is enabled in the instance at the same
time. This will be further investigated, as it is not reasonable for
networkd to eat up all the previously available entropy. LP: #1712921
-- Dimitri John Ledkov <email address hidden> Thu, 24 Aug 2017 22:55:53 +0100