[Bug 1822585] [NEW] OSA/qeth inconsistent interface names

[Frank Heimes]

Public bug reported:

After doing an installation of an s390x system with disco where OSA
devices are in use (means LPAR and z/VM) the device name of the default
interface that is generated during the installation is file, for
example:

ubuntu at s1lp15:~$ lszdev qeth | grep yes
qeth  0.0.c000:0.0.c001:0.0.c002  yes  yes   encc000

If another device is created (e.g. with the help of: sudo chzdev -e
c003), it name is no longer based on the address, but it get's an 'eth?'
name:

ubuntu at s1lp15:~$ lszdev qeth | grep yes
qeth  0.0.c000:0.0.c001:0.0.c002  yes  yes   encc000
qeth  0.0.c003:0.0.c004:0.0.c005  yes  yes   eth0

The coressponding 'ip a' line is:
9: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
(02:29:22 PM) jfh:     link/ether 5a:2e:d8:c6:c1:03 brd ff:ff:ff:ff:ff:ff

After a 'sudo systemctl restart systemd-udev-trigger.service' it get's the correct name 'encc003':
9: encc003: <BROADCAST,MULTICAST>

** Affects: ubuntu-z-systems
     Importance: High
     Assignee: bugproxy (bugproxy)
         Status: New

** Affects: s390-tools (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: architecture-s39064 bugnameltc-176566 reverse-proxy-bugzilla s390x severity-high targetmilestone-inin1904

** Attachment added: "journalctl_-b.txt"
   https://bugs.launchpad.net/bugs/1822585/+attachment/5251611/+files/journalctl_-b.txt

** Also affects: ubuntu-z-systems
   Importance: Undecided
       Status: New

** Changed in: ubuntu-z-systems
   Importance: Undecided => Medium

** Changed in: ubuntu-z-systems
     Assignee: (unassigned) => bugproxy (bugproxy)

** Changed in: ubuntu-z-systems
   Importance: Medium => High

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https://bugs.launchpad.net/bugs/1822585

Title:
  OSA/qeth inconsistent interface names

Status in Ubuntu on IBM z Systems:
  New
Status in s390-tools package in Ubuntu:
  New

Bug description:
  After doing an installation of an s390x system with disco where OSA
  devices are in use (means LPAR and z/VM) the device name of the
  default interface that is generated during the installation is file,
  for example:

  ubuntu at s1lp15:~$ lszdev qeth | grep yes
  qeth  0.0.c000:0.0.c001:0.0.c002  yes  yes   encc000

  If another device is created (e.g. with the help of: sudo chzdev -e
  c003), it name is no longer based on the address, but it get's an
  'eth?' name:

  ubuntu at s1lp15:~$ lszdev qeth | grep yes
  qeth  0.0.c000:0.0.c001:0.0.c002  yes  yes   encc000
  qeth  0.0.c003:0.0.c004:0.0.c005  yes  yes   eth0

  The coressponding 'ip a' line is:
  9: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
  (02:29:22 PM) jfh:     link/ether 5a:2e:d8:c6:c1:03 brd ff:ff:ff:ff:ff:ff

  After a 'sudo systemctl restart systemd-udev-trigger.service' it get's the correct name 'encc003':
  9: encc003: <BROADCAST,MULTICAST>

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