Public bug reported:
Description:Ubuntu 18.04.5 LTS
Release:18.04
I have also checked the code for Ubuntu 20 and the specific code looks
identical to me.
>From package:python3-apport
file: /usr/lib/python3/dist-packages/apport_python_hook.py
The follwing code will crash if current
Public bug reported:
We have experienced this issue on mixed ipv6/ipv4 corporate network on Ubuntu
18.04.
Unfortunately next LTS release is not yet an option for us.
This is same as https://bugzilla.gnome.org/show_bug.cgi?id=783391
Could you consider including the below patch on ubuntu 18.04?
UPDATE, network-manager team applied this to the 1.10-trunk as well and it was
included in:
1.10.8 (first tag)
See:
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/commit/7fbbe7ebee99785e38d39c37e515a64a28edef0f
Unfortunately Ubuntu 18.04 includes a version that is slightly too
** Description changed:
- We have experienced this issue on mixed ipv6/ipv4 corporate network on Ubuntu
18.04.
- Unfortunately next LTS release is not yet an option for us.
+ [Impact]
- This is same as https://bugzilla.gnome.org/show_bug.cgi?id=783391
- This was fixed in 1.12.0.
+ * Network
>> The exact conditions for reproducing this bug on mixed IPv4/IPv6 networks
>> are not known
>
>Looking at the upstream commit description, isn't it just that a DHCPv6 lease
>expires and the >server NAKs a request for the same IP again? Or is that not
>sufficient to trigger the problem.
>
Yes,
Proposal for test plan:
Setup of environment
1. Install two identical computers (A,B) with Ubuntu 18.04 with the same
configuration
2. On computer B installed the patched version of network manager
3. Try to make the network conditions the same on both computers by connecting
the computers two
It seems like https://bugs.launchpad.net/ubuntu/+source/network-
manager/+bug/1533631 is the same bug as this one.
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Touch seeded packages, which is subscribed to network-manager in Ubuntu.
I have filed a separate ticket on this for ubuntu 16.04 and cherry-picked the
linked fix and tested.
https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1969901
I didn't see this ticket before I filed my ticket.
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** Description changed:
[Impact]
* This affects Ubuntu 18.04 where Network Manager version 1.10.6 is
used.
* Network manager might kill dhclient(6) and fail to start it again
causing the IPv6 address to be lost on a network that uses mixed
IPv4/IPV6.
The network
Updated patch also including d017022dfc7e531c23caddeac7b3a8b03b1aa5d0
we will test this further.
** Patch added: "updated patch including
d017022dfc7e531c23caddeac7b3a8b03b1aa5d0"
I have tested the new version of the debdiff including the fix and the
fix of the fix.
Using it daily on my laptop and also tested it in the test setup described in
the description.
No issues seen so far.
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Agreed, commit d017022 seems to be missing.
I will cherry-pick it locally and retest.
I did some more comparing of the file nm-device.c where the changes was
made.
I think d017022 is the only relevant follow up change.
I compared the commit with the original fix with on the 1.10 track with
Any comments on the proposed test plan?
It worked fine in during the described steps.
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https://bugs.launchpad.net/bugs/1969901
Title:
Ubuntu 20.04 includes a later version of network manager that already
contains the fix.
The suggested fix for 18.04 is a backport/cherry-pick of the fix to the
older version of network manager included in 18.04.
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