Bug #3357
Role disappears from ethernet interface
Status: | CLOSED | Start date: | ||
---|---|---|---|---|
Priority: | Normal | Due date: | ||
Assignee: | - | % Done: | 100% | |
Category: | nethserver-base | |||
Target version: | v6.7 | |||
Security class: | Resolution: | |||
Affected version: | NEEDINFO: | No |
Description
Udev will take care to adjust the network interface:
- for each new interface, a new record is created
- if an interface has been removed, the role of the interface is removed
This is a desired behavior for USB ethernet cards, but can generate problems when the hardware or the driver is bugged and the ethernet interface disappears only for a limited time.
Example:
Feb 8 14:34:40 firewall kernel: pciehp 0000:00:1c.2:pcie04: Card not present on Slot(34) Feb 8 14:34:40 firewall kernel: e1000e 0000:04:00.0: eth2: removed PHC Feb 8 14:34:41 firewall /sbin/e-smith/db[14382]: /var/lib/nethserver/db/networks: OLD eth2=ethernet|bootproto|none|gateway|192.168.0.251|hwaddr|00:90:0b:35:69:xx|ipaddr|192.168.0.1|netmask|255.255.255.0|role|red Feb 8 14:34:41 firewall /sbin/e-smith/db[14382]: /var/lib/nethserver/db/networks: NEW eth2=ethernet|bootproto|none|gateway|192.168.0.251|hwaddr|00:90:0b:35:69:xx|ipaddr|192.168.0.1|netmask|255.255.255.0|role|
After a couple of seconds, the interface will be resumed but since the role has been removed, the system will not be able to correctly apply network and firewall configuration.
Steps to reproduce
Since the problem is hard to reproduce with PCI or embedded ethernet interface, use a USB ethernet device:- Connect the USB card
- Configure the USB card with a role and an IP address
- Disconnect the USB and check the associated record doesn't have a role
Workaround
Update networks db by assign a role to the network interface (eg. eth1):
db networks setprop eth1 role green signal-event interface update
Associated revisions
udev-update-network: do not remove role prop if an interface has gone away. Refs #3357
History
#1 Updated by Giacomo Sanchietti over 5 years ago
- Category set to nethserver-base
- Status changed from NEW to TRIAGED
- Target version set to v6.7
- % Done changed from 0 to 20
#2 Updated by Giacomo Sanchietti over 5 years ago
- Status changed from TRIAGED to ON_DEV
- Assignee set to Giacomo Sanchietti
- % Done changed from 20 to 30
#3 Updated by Giacomo Sanchietti over 5 years ago
- Status changed from ON_DEV to MODIFIED
- % Done changed from 30 to 60
#4 Updated by Giacomo Sanchietti over 5 years ago
- Status changed from MODIFIED to ON_QA
- Assignee deleted (
Giacomo Sanchietti) - % Done changed from 60 to 70
- nethserver-base-2.9.5-1.6.g567b6ba.ns6.noarch.rpm
- Check the bug is not reproducible: you should be able to disconnect and reconnect an ethernet device with no need to reconfigure it
Note
If you are using USB ethernet devices, after the stick has been unplugged, you must remove the record from networks db:
db delete networks delete ethx signal-event interface-update
#5 Updated by Filippo Carletti over 5 years ago
- Status changed from ON_QA to VERIFIED
- % Done changed from 70 to 90
Pre upgrade:
[root@nscom ~]# db networks show eth2 eth2=ethernet bootproto=none hwaddr=00:80:c8:38:eb:49 ipaddr=10.10.11.12 netmask=255.255.0.0 role=blue Feb 23 18:19:02 nscom kernel: usb 1-1: USB disconnect, device number 2 Feb 23 18:19:02 nscom kernel: asix 1-1:1.0: eth2: unregister 'asix' usb-0000:00:0b.0-1, ASIX AX88772 USB 2.0 Ethernet Feb 23 18:19:03 nscom /sbin/e-smith/db[17000]: /var/lib/nethserver/db/networks: OLD eth2=ethernet|bootproto|none|hwaddr|00:80:c8:38:eb:49|ipaddr|10.10.11.12|netmask|255.255.0.0|role|blue Feb 23 18:19:03 nscom /sbin/e-smith/db[17000]: /var/lib/nethserver/db/networks: NEW eth2=ethernet|bootproto|none|hwaddr|00:80:c8:38:eb:49|ipaddr|10.10.11.12|netmask|255.255.0.0|role|
Post upgrade:
Feb 23 18:27:39 nscom kernel: usb 1-1: USB disconnect, device number 3 Feb 23 18:27:39 nscom kernel: asix 1-1:1.0: eth2: unregister 'asix' usb-0000:00:0b.0-1, ASIX AX88772 USB 2.0 Ethernet Feb 23 18:27:41 nscom ntpd[17421]: Deleting interface #15 eth2, 10.10.11.12#123, interface stats: received=0, sent=0, dropped=0, active_time=38 secs
I deleted the eth from the network menu.
#6 Updated by Giacomo Sanchietti over 5 years ago
- Status changed from VERIFIED to CLOSED
- % Done changed from 90 to 100
- nethserver-base-2.9.6-1.ns6.noarch.rpm