Bug 1890489 - NetworkManager-dispatcher is stopping and starting ethernet device for no reason
Summary: NetworkManager-dispatcher is stopping and starting ethernet device for no reason
Keywords:
Status: CLOSED EOL
Alias: None
Product: Fedora
Classification: Fedora
Component: NetworkManager
Version: 32
Hardware: x86_64
OS: Linux
unspecified
high
Target Milestone: ---
Assignee: Lubomir Rintel
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-10-22 11:50 UTC by Randy
Modified: 2021-05-25 17:30 UTC (History)
10 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2021-05-25 17:30:09 UTC
Type: Bug
Embargoed:

Attachments (Terms of Use)

Description Randy 2020-10-22 11:50:36 UTC 
Description of problem:

After a recent patch noticed a daily brief interrupt in my internet connection. 

Traced it to these entries in my system log. 

Oct 22 01:48:14 localhost.localdomain systemd[1]: Starting Network Manager Script Dispatcher Service...
Oct 22 01:48:14 localhost.localdomain systemd[1]: Started Network Manager Script Dispatcher Service.
Oct 22 01:48:14 localhost.localdomain audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Oct 22 01:48:14 localhost.localdomain kernel: userif-2: sent link down event.
Oct 22 01:48:14 localhost.localdomain kernel: userif-2: sent link up event.
Oct 22 01:48:24 localhost.localdomain systemd[1]: NetworkManager-dispatcher.service: Succeeded.
Oct 22 01:48:24 localhost.localdomain audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Comment 1 Randy 2020-10-22 18:53:55 UTC 
Disabling NetworkManager-dispatcher.service did not fix the problem. 

I continue to have link down events every 12 hours. 

Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2231] dhcp4 (enp40s0): option dhcp_lease_time      => '86400'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2234] dhcp4 (enp40s0): option domain_name_servers  => '10.10.240.128'
Oct 22 13:48:14 localhost.localdomain vmnet-natd[4704]: RTM_NEWADDR: index:2, addr:10.10.240.17
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2234] dhcp4 (enp40s0): option expiry               => '1603478894'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2234] dhcp4 (enp40s0): option ip_address           => '10.10.240.17'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2234] dhcp4 (enp40s0): option requested_broadcast_address => '1'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2234] dhcp4 (enp40s0): option requested_domain_name => '1'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2234] dhcp4 (enp40s0): option requested_domain_name_servers => '1'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2235] dhcp4 (enp40s0): option requested_domain_search => '1'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2235] dhcp4 (enp40s0): option requested_host_name  => '1'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2235] dhcp4 (enp40s0): option requested_interface_mtu => '1'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2235] dhcp4 (enp40s0): option requested_ms_classless_static_routes => '1'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2235] dhcp4 (enp40s0): option requested_nis_domain => '1'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2235] dhcp4 (enp40s0): option requested_nis_servers => '1'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2235] dhcp4 (enp40s0): option requested_ntp_servers => '1'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2235] dhcp4 (enp40s0): option requested_rfc3442_classless_static_routes => '1'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2235] dhcp4 (enp40s0): option requested_root_path  => '1'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2235] dhcp4 (enp40s0): option requested_routers    => '1'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2235] dhcp4 (enp40s0): option requested_static_routes => '1'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2235] dhcp4 (enp40s0): option requested_subnet_mask => '1'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2235] dhcp4 (enp40s0): option requested_time_offset => '1'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2236] dhcp4 (enp40s0): option requested_wpad       => '1'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2236] dhcp4 (enp40s0): option routers              => '10.10.240.128'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2236] dhcp4 (enp40s0): option subnet_mask          => '255.255.255.0'
Oct 22 13:48:14 localhost.localdomain NetworkManager[1350]: <info>  [1603392494.2236] dhcp4 (enp40s0): state changed extended -> extended
Oct 22 13:48:14 localhost.localdomain dbus-broker-launch[1178]: Activation request for 'org.freedesktop.nm_dispatcher' failed: The systemd unit 'dbus-org.freedesktop.nm-dispatcher.service' could not be found.
Oct 22 13:48:14 localhost.localdomain kernel: userif-2: sent link down event.
Oct 22 13:48:14 localhost.localdomain kernel: userif-2: sent link up event.
Comment 2 Randy 2020-10-23 12:19:47 UTC 
Switching from DHCP to static IP assignment seems to have resolved this issue for me.
Comment 3 Fedora Program Management 2021-04-29 16:57:38 UTC 
This message is a reminder that Fedora 32 is nearing its end of life.
Fedora will stop maintaining and issuing updates for Fedora 32 on 2021-05-25.
It is Fedora's policy to close all bug reports from releases that are no longer
maintained. At that time this bug will be closed as EOL if it remains open with a
Fedora 'version' of '32'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version.

Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora 32 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora, you are encouraged  change the 'version' to a later Fedora 
version prior this bug is closed as described in the policy above.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.
Comment 4 Ben Cotton 2021-05-25 17:30:09 UTC 
Fedora 32 changed to end-of-life (EOL) status on 2021-05-25. Fedora 32 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
are unable to reopen this bug, please file a new report against the
current release. If you experience problems, please add a comment to this
bug.

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