This bug was fixed in the package network-manager -
1.2.6-0ubuntu0.16.04.2
---
network-manager (1.2.6-0ubuntu0.16.04.2) xenial; urgency=medium
* Fix nm-dhcp-helper DBus Event/Notify race condition (LP: #1696415)
-- Ray Link Thu, 19 Oct 2017 13:53:52
-0400
** Changed in: network
Also note that the previous (current) version of network-manager
(1.2.6-0ubuntu0.16.04.1) is also failing s390x autopkgtest.
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https://bugs.launchpad.net/bugs/1696415
Title:
NetworkManag
The autopkgtest failure on s390x is in a test that checks rfkill
integration. s390 kernels do not have CONFIG_RFKILL set. Behavior
change might have something to do with the recent change to s390x
autopkgtest from LXC containers to VMs?
https://lists.ubuntu.com/archives/ubuntu-devel/2017-Novembe
There seems to be an autopkgtest failure on s390x which requires
investigation.
http://autopkgtest.ubuntu.com/packages/n/network-manager/xenial/s390x
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https://bugs.launchpad.net/bugs/1696
Version 1.2.6-0ubuntu0.16.04.2 has been deployed here to several
machines that were experiencing the bug multiple times per day. All
DHCP renewal requests since deployment have resulted in renewal
notifications being successfully delivered to NetworkManager.
** Tags removed: verification-needed-x
Sorry for the delay - I was away for a week. I have deployed the
packages from -proposed and will confirm after keeping an eye on DHCP
lease renewals for a while.
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Hello Sjors, or anyone else affected,
Accepted network-manager into xenial-proposed. The package will build
now and be available at https://launchpad.net/ubuntu/+source/network-
manager/1.2.6-0ubuntu0.16.04.2 in a few hours, and then in the -proposed
repository.
Please help us by testing this new
Sjors:
I'm interested to know how it goes for you with this update (either from
the included debdiff, or from the packages when they hit -proposed.) We
were seeing the exact same symptoms you were, and deep-dove into your
backported fix from the GNOME bug and it all seems like it should fix
the i
Hi Ray/Julian,
> * NOTE: The final comment on the upstream GNOME bug claims that the fix
> is incomplete. However, it is possible that the running NetworkManager was
> not restarted (see Regression Potential notes above), which is why
> nm-dhcp-helper is falling back to Event.
This is not the ca
** Description changed:
- I've found an issue on some of our Xenial office machines, causing
- NetworkManager to drop its IP address lease in some cases when it
- shouldn't. I'm not sure if the actual bug is in NetworkManager or
- perhaps dbus or dhclient, but I'll do my best to help to figure out
Fix uploaded.
** Changed in: network-manager (Ubuntu Xenial)
Status: Triaged => In Progress
** Description changed:
I've found an issue on some of our Xenial office machines, causing
NetworkManager to drop its IP address lease in some cases when it
shouldn't. I'm not sure if the act
** Description changed:
I've found an issue on some of our Xenial office machines, causing
NetworkManager to drop its IP address lease in some cases when it
shouldn't. I'm not sure if the actual bug is in NetworkManager or
perhaps dbus or dhclient, but I'll do my best to help to figure out
** Changed in: network-manager (Ubuntu)
Status: Confirmed => Fix Released
** Also affects: network-manager (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: network-manager (Ubuntu Xenial)
Status: New => Triaged
** Changed in: network-manager (Ubuntu Xenial
Correction/Addendum to the SRU justification above:
Fixed in current Ubuntu. Bionic uses NM 1.8.x. This bug was fixed in
1.4.
[Impact]
* This LP bug's original submitter backported the upstream 1.4 fix to
1.2, not Upstream.
[Regression Potential]
* The patch changes both nm-dhcp-helper and N
[Impact]
* nm-dhcp-helper sometimes fails to notify NetworkManager of a DHCP
lease renewal due to a DBus race condition.
* Upstream NetworkManager 1.4 fixes the race condition by changing
nm-dhcp-helper's DBus notification from signal "Event" to method
"Notify".
* Upstream backported
Upstream GNOME bug fixed. I've applied the fix to Xenial's NM and
tested. SRU incoming.
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Title:
NetworkManager does not update IPv4 address lif
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: network-manager (Ubuntu)
Status: New => Confirmed
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Tit
** Changed in: network-manager
Status: Unknown => Confirmed
** Changed in: network-manager
Importance: Unknown => Medium
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Title:
Netwo
Hi Sebastien, thanks for your comment!
I've reported the bug upstream as GNOME #784636, see
https://bugzilla.gnome.org/show_bug.cgi?id=784636. I already added a
bugwatch.
** Bug watch added: GNOME Bug Tracker #784636
https://bugzilla.gnome.org/show_bug.cgi?id=784636
** Also affects: network-m
Thank you for taking the time to report this bug and helping to make
Ubuntu better. The issue you are reporting is an upstream one and it
would be nice if somebody having it could send the bug to the developers
of the software by following the instructions at
https://wiki.ubuntu.com/Bugs/Upstream/G
I've closed down on the root cause being the /usr/lib/NetworkManager/nm-
dhcp-helper tool. Occasionally, this binary runs, but fails to correctly
send the update to NetworkManager. No errors occur when this happens;
NetworkManager in debug mode just says "accepted connection on private
socket" then
** Summary changed:
- NetworkManager seems to drop IPv4 DHCP lease even though it was successfully
renewed
+ NetworkManager does not update IPv4 address lifetime even though DHCP lease
was successfully renewed
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