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Bug 2079054 - NM wrongly removes all addresses on the unmanaged interface which it shouldn't
Summary: NM wrongly removes all addresses on the unmanaged interface which it shouldn't
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: NetworkManager
Version: 8.7
Hardware: Unspecified
OS: Unspecified
urgent
unspecified
Target Milestone: rc
: ---
Assignee: Beniamino Galvani
QA Contact: Matej Berezny
URL:
Whiteboard:
: 2079053 (view as bug list)
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-04-26 19:14 UTC by Wen Liang
Modified: 2022-11-08 11:22 UTC (History)
10 users (show)

Fixed In Version: NetworkManager-1.39.5-1.el8
Doc Type: No Doc Update
Doc Text:
Clone Of:
Environment:
Last Closed: 2022-11-08 10:10:31 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHELPLAN-120033 0 None None None 2022-04-26 19:23:02 UTC
Red Hat Product Errata RHBA-2022:7680 0 None None None 2022-11-08 10:10:55 UTC
freedesktop.org Gitlab NetworkManager NetworkManager-ci merge_requests 1086 0 None merged bridge: added @bridge_keepaddr_unmanaged_device test 2022-06-17 18:46:57 UTC
freedesktop.org Gitlab NetworkManager NetworkManager merge_requests 1216 0 None opened device: commit l3cfg on link change only when the device is activating 2022-05-09 09:04:41 UTC

Description Wen Liang 2022-04-26 19:14:28 UTC 
Description of problem:

The following test is conducting on the rhel8.7 1minutetip machine:

[root@ci-vm-10-0-139-77 ~]# ip link add name testbr type bridge forward_delay 0
[root@ci-vm-10-0-139-77 ~]# ip link set testbr up  && ip addr add 192.0.2.1/24 dev testbr && ip -6 addr add 2001:DB8::1/32 dev testbr
[root@ci-vm-10-0-139-77 ~]# ip a s testbr
7: testbr: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000
    link/ether ba:42:8d:29:a7:20 brd ff:ff:ff:ff:ff:ff
    inet 192.0.2.1/24 scope global testbr
       valid_lft forever preferred_lft forever
    inet6 2001:db8::1/32 scope global
       valid_lft forever preferred_lft forever
    inet6 fe80::b842:8dff:fe29:a720/64 scope link
       valid_lft forever preferred_lft forever
 
[root@ci-vm-10-0-139-77 ~]# ip l del testbr
[root@ci-vm-10-0-139-77 ~]# ip link add name testbr type bridge forward_delay 0
[root@ci-vm-10-0-139-77 ~]# nmcli d set testbr managed false
[root@ci-vm-10-0-139-77 ~]# ip link set testbr up  && ip addr add 192.0.2.1/24 dev testbr && ip -6 addr add 2001:DB8::1/32 dev testbr
[root@ci-vm-10-0-139-77 ~]# ip a s testbr
8: testbr: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000
    link/ether 72:a4:59:1f:cb:3e brd ff:ff:ff:ff:ff:ff
    inet6 fe80::70a4:59ff:fe1f:cb3e/64 scope link
       valid_lft forever preferred_lft forever
 

Notice that the addresses can not be configured afterwards if unmanage the testbr device.



The complete log is attached. 



Version-Release number of selected component (if applicable):
[root@ci-vm-10-0-139-77 ~]# nmcli -v
nmcli tool, version 1.39.0-1.el8
[root@ci-vm-10-0-139-77 ~]# cat /etc/redhat-release 
Red Hat Enterprise Linux release 8.7 Beta (Ootpa)


How reproducible:
I can reproduce everytime


Steps to Reproduce:
1. ip link add name testbr type bridge forward_delay 0
2. nmcli d set testbr managed false
3. ip link set testbr up  && ip addr add 192.0.2.1/24 dev testbr && ip -6 addr add 2001:DB8::1/32 dev testbr
4. ip a s testbr

Actual results:
The addresses are not configured for testbr

Expected results:
The addresses are configured for testbr

Additional info:
Comment 1 Thomas Haller 2022-04-26 19:26:31 UTC 
bad thing happens at 

>  [1650999988.8413] l3cfg[917a14bfe5d6d6c8,ifindex=10]: commit on idle (scheduled) (reapply)
Comment 3 Till Maas 2022-04-28 09:43:27 UTC 
What's the situation with NM in RHEL 8.6 for this scenario?
Comment 4 Wen Liang 2022-04-28 16:27:38 UTC 
(In reply to Till Maas from comment #3)
> What's the situation with NM in RHEL 8.6 for this scenario?

I can always reproduce the same issue in RHEL 8.6. 

```
[root@ci-vm-10-0-136-35 ~]# cat /etc/redhat-release 
Red Hat Enterprise Linux release 8.6 (Ootpa)
[root@ci-vm-10-0-136-35 ~]# nmcli -v
nmcli tool, version 1.36.0-4.el8


[root@ci-vm-10-0-136-35 ~]# ip link add name testbr type bridge forward_delay 0
[root@ci-vm-10-0-136-35 ~]# nmcli d set testbr managed false
[root@ci-vm-10-0-136-35 ~]# ip link set testbr up  && ip addr add 192.0.2.1/24 dev testbr && ip -6 addr add 2001:DB8::1/32 dev testbr
[root@ci-vm-10-0-136-35 ~]# ip a s testbr
7: testbr: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000
    link/ether c2:39:33:72:fe:bd brd ff:ff:ff:ff:ff:ff
    inet6 fe80::c039:33ff:fe72:febd/64 scope link 
       valid_lft forever preferred_lft forever
[root@ci-vm-10-0-136-35 ~]# 

```
Comment 5 Till Maas 2022-05-05 14:16:23 UTC 
*** Bug 2079053 has been marked as a duplicate of this bug. ***
Comment 9 errata-xmlrpc 2022-11-08 10:10:31 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-2022:7680
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