Bug 2154350 - NetworkManager intermittently fails to configure MTU with netlink error 'too many netlink events'
Summary: NetworkManager intermittently fails to configure MTU with netlink error 'too ...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: NetworkManager
Version: 8.7
Hardware: All
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Lubomir Rintel
QA Contact: Matej Berezny
URL:
Whiteboard:
Depends On:
Blocks: 2169512
TreeView+ depends on / blocked
 
Reported: 2022-12-16 16:23 UTC by Sara Ferguson
Modified: 2023-05-16 11:06 UTC (History)
12 users (show)

Fixed In Version: NetworkManager-1.40.12-1.el8
Doc Type: No Doc Update
Doc Text:
Clone Of:
: 2169512 (view as bug list)
Environment:
Last Closed: 2023-05-16 09:05:00 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker NMT-135 0 None None None 2023-01-23 09:20:11 UTC
Red Hat Issue Tracker RHELPLAN-142759 0 None None None 2022-12-16 16:53:35 UTC
Red Hat Product Errata RHBA-2023:2968 0 None None None 2023-05-16 09:05:51 UTC
freedesktop.org Gitlab NetworkManager NetworkManager-ci merge_requests 1327 0 None opened ethernet: added ethernet_keep_mtu_on_reboot test 2023-02-21 09:19:55 UTC

Comment 4 Lubomir Rintel 2023-01-17 18:34:24 UTC 
This should fix the issue:
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/commit/38d3834e2c464bd4820392800a3a1fe3f286fc62

I got to say -- thanks for the great job at investigating the causes while reporting it.
You were spot on about what's going on and the remark about net.core.rmem_max was particularly helpful.
Comment 5 Thomas Haller 2023-01-17 19:44:55 UTC 
(In reply to Lubomir Rintel from comment #4)
> This should fix the issue:
> https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/commit/
> 38d3834e2c464bd4820392800a3a1fe3f286fc62

I think this also needs a similar fix for when we configure IP addresses, routes, etc. Doesn't it?
Comment 6 Lubomir Rintel 2023-01-23 07:47:10 UTC 
(In reply to Thomas Haller from comment #5)
> (In reply to Lubomir Rintel from comment #4)
> > This should fix the issue:
> > https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/commit/
> > 38d3834e2c464bd4820392800a3a1fe3f286fc62
> 
> I think this also needs a similar fix for when we configure IP addresses,
> routes, etc. Doesn't it?

Good point. I think so.
Comment 7 Fernando F. Mancera 2023-01-25 13:34:47 UTC 
This requires backport to nm-1-40 branch
Comment 9 Thomas Haller 2023-02-13 20:03:23 UTC 
(In reply to Thomas Haller from comment #5)
> (In reply to Lubomir Rintel from comment #4)
> > This should fix the issue:
> > https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/commit/
> > 38d3834e2c464bd4820392800a3a1fe3f286fc62
> 
> I think this also needs a similar fix for when we configure IP addresses,
> routes, etc. Doesn't it?

But was cloned to https://bugzilla.redhat.com/show_bug.cgi?id=2169512 for that...
Comment 13 errata-xmlrpc 2023-05-16 09:05:00 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (NetworkManager bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2023:2968
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