| 2020-05-27 08:09:34 |
bugproxy |
bug |
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added bug |
| 2020-05-27 08:09:37 |
bugproxy |
tags |
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architecture-s39064 bugnameltc-185982 severity-high targetmilestone-inin18044 |
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| 2020-05-27 08:09:39 |
bugproxy |
ubuntu: assignee |
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Skipper Bug Screeners (skipper-screen-team) |
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| 2020-05-27 08:09:43 |
bugproxy |
affects |
ubuntu |
linux (Ubuntu) |
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| 2020-05-27 08:22:32 |
Frank Heimes |
bug task added |
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ubuntu-z-systems |
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| 2020-05-27 08:29:35 |
Frank Heimes |
linux (Ubuntu): assignee |
Skipper Bug Screeners (skipper-screen-team) |
Canonical Kernel Team (canonical-kernel-team) |
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| 2020-05-27 08:29:46 |
Frank Heimes |
ubuntu-z-systems: assignee |
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Skipper Bug Screeners (skipper-screen-team) |
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| 2020-05-27 08:29:52 |
Frank Heimes |
ubuntu-z-systems: status |
New |
Incomplete |
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| 2020-05-27 08:29:55 |
Frank Heimes |
linux (Ubuntu): status |
New |
Incomplete |
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| 2020-05-27 16:59:30 |
bugproxy |
attachment added |
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Backport of "s390/qeth: improve fallback to random MAC address" https://bugs.launchpad.net/bugs/1880834/+attachment/5377433/+files/0001-s390-qeth-improve-fallback-to-random-MAC-address.patch |
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| 2020-05-27 16:59:32 |
bugproxy |
attachment added |
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Backport of "s390/qeth: utilize virtual MAC for Layer2 OSD devices" https://bugs.launchpad.net/bugs/1880834/+attachment/5377434/+files/0002-s390-qeth-utilize-virtual-MAC-for-Layer2-OSD-devices.patch |
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| 2020-05-27 20:15:17 |
Frank Heimes |
linux (Ubuntu): status |
Incomplete |
Triaged |
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| 2020-05-27 20:15:23 |
Frank Heimes |
ubuntu-z-systems: status |
Incomplete |
Triaged |
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| 2020-05-27 20:15:31 |
Frank Heimes |
ubuntu-z-systems: importance |
Undecided |
High |
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| 2020-05-28 12:47:36 |
Frank Heimes |
description |
---Problem Description---
qeth on a DPM-managed IBM Z machine does not obtain its MAC Address for L2 OSD interfaces from the OSA Network Adapter. Instead it uses a random MAC Address.
This causes connectivity issues in setups where a reliable & pre-determined MAC Address is required - ie. when doing network configuration via DHCP.
---uname output---
Ubuntu 18.04 / vmlinuz-4.15.0-101-generic
Machine Type = IBM z14 GA2
---Debugger---
A debugger is not configured
---Steps to Reproduce---
- Bring up a qeth L2 OSD interface in DPM-managed LPAR.
- Inspect the interface's MAC Address. It should be the same as displayed in the DPM Panels.
Stack trace output:
no
Oops output:
no
System Dump Info:
The system is not configured to capture a system dump.
-Attach sysctl -a output output to the bug.
Backport of "s390/qeth: improve fallback to random MAC address"
Backport of "s390/qeth: utilize virtual MAC for Layer2 OSD devices"
This ticket is for 18.04 only. Already available with 20.04 |
SRU Justification:
==================
[Impact]
* A qeth device on a DPM-managed (HMC) IBM Z machine does not obtain its MAC address for layer2 OSD interfaces from the OSA Network Adapter, instead it uses a random MAC address.
* This can cause connectivity issues in environments where reliable and pre-determined MAC addresses are required, ie. when doing network configuration based on DHCP.
[Fix]
* Backport 1: https://launchpadlibrarian.net/481647649/0001-s390-qeth-improve-fallback-to-random-MAC-address.patch
* Backport 2: https://launchpadlibrarian.net/481647657/0002-s390-qeth-utilize-virtual-MAC-for-Layer2-OSD-devices.patch
[Test Case]
* Bring up a qeth L2 OSD interface in DPM-managed (HMC) LPAR
* Inspect the interface's MAC address. It should be the same as displayed in the HMC DPM panels.
* Due to the fact that a system is needed where the HMC is in DPM moce (rather than in classic mode) this needs to be tested by IBM.
[Regression Potential]
* There is a certain risk for a regression, since OSA devices are the standard netweork devices on s390x.
* But static network configurations are still more popular for the usually long running workload on s390x and not dynamic assignments.
* On the other hand qeth devices are s390x only, so this will at least not affect common code or code for other architectures.
* The modifications are limited to drivers/s390/net/qeth_*.
* The patches are upstream since quite a while, which speaks for their stability.
[Other Info]
* The upstream patch 21b1702af12e "s390/qeth: improve fallback to random MAC address" got upstream accepted with 4.18, hence is already in all Ubuntu release that are newer than bionic
* And the upstream patch b144b99fff69 "s390/qeth: utilize virtual MAC for Layer2 OSD devices" got upstream accepted with 5.0, hence is also already in all Ubuntu release that are newer than bionic.
__________
---Problem Description---
qeth on a DPM-managed IBM Z machine does not obtain its MAC Address for L2 OSD interfaces from the OSA Network Adapter. Instead it uses a random MAC Address.
This causes connectivity issues in setups where a reliable & pre-determined MAC Address is required - ie. when doing network configuration via DHCP.
---uname output---
Ubuntu 18.04 / vmlinuz-4.15.0-101-generic
Machine Type = IBM z14 GA2
---Debugger---
A debugger is not configured
---Steps to Reproduce---
- Bring up a qeth L2 OSD interface in DPM-managed LPAR.
- Inspect the interface's MAC Address. It should be the same as displayed in the DPM Panels.
Stack trace output:
no
Oops output:
no
System Dump Info:
The system is not configured to capture a system dump.
-Attach sysctl -a output output to the bug.
Backport of "s390/qeth: improve fallback to random MAC address"
Backport of "s390/qeth: utilize virtual MAC for Layer2 OSD devices"
This ticket is for 18.04 only. Already available with 20.04 |
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| 2020-05-28 12:47:44 |
Frank Heimes |
linux (Ubuntu): status |
Triaged |
In Progress |
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| 2020-05-28 12:47:48 |
Frank Heimes |
ubuntu-z-systems: status |
Triaged |
In Progress |
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| 2020-06-03 08:36:55 |
Frank Heimes |
nominated for series |
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Ubuntu Bionic |
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| 2020-06-03 08:36:55 |
Frank Heimes |
bug task added |
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linux (Ubuntu Bionic) |
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| 2020-06-03 08:37:42 |
Frank Heimes |
linux (Ubuntu Bionic): status |
New |
In Progress |
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| 2020-06-03 08:37:48 |
Frank Heimes |
linux (Ubuntu): status |
In Progress |
Fix Released |
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| 2020-06-03 08:42:16 |
Frank Heimes |
nominated for series |
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Ubuntu Groovy |
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| 2020-06-03 08:42:16 |
Frank Heimes |
bug task added |
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linux (Ubuntu Groovy) |
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| 2020-06-03 08:42:16 |
Frank Heimes |
nominated for series |
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Ubuntu Focal |
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| 2020-06-03 08:42:16 |
Frank Heimes |
bug task added |
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linux (Ubuntu Focal) |
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| 2020-06-03 08:42:16 |
Frank Heimes |
nominated for series |
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Ubuntu Eoan |
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| 2020-06-03 08:42:16 |
Frank Heimes |
bug task added |
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linux (Ubuntu Eoan) |
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| 2020-06-03 08:42:27 |
Frank Heimes |
linux (Ubuntu Focal): status |
New |
Fix Released |
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| 2020-06-03 08:42:33 |
Frank Heimes |
linux (Ubuntu Eoan): status |
New |
Fix Committed |
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| 2020-06-03 08:44:10 |
Frank Heimes |
linux (Ubuntu Eoan): status |
Fix Committed |
Fix Released |
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| 2020-06-05 05:24:04 |
Khaled El Mously |
linux (Ubuntu Bionic): status |
In Progress |
Fix Committed |
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| 2020-06-05 05:38:19 |
Frank Heimes |
ubuntu-z-systems: status |
In Progress |
Fix Committed |
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| 2020-06-10 17:45:25 |
Ubuntu Kernel Bot |
tags |
architecture-s39064 bugnameltc-185982 severity-high targetmilestone-inin18044 |
architecture-s39064 bugnameltc-185982 severity-high targetmilestone-inin18044 verification-needed-bionic |
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| 2020-06-10 19:05:48 |
Frank Heimes |
tags |
architecture-s39064 bugnameltc-185982 severity-high targetmilestone-inin18044 verification-needed-bionic |
architecture-s39064 bugnameltc-185982 severity-high targetmilestone-inin18044 verification-done-bionic |
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| 2020-07-01 10:28:55 |
Launchpad Janitor |
linux (Ubuntu Bionic): status |
Fix Committed |
Fix Released |
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| 2020-07-01 10:28:55 |
Launchpad Janitor |
cve linked |
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2019-12380 |
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| 2020-07-01 10:28:55 |
Launchpad Janitor |
cve linked |
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2019-16089 |
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| 2020-07-01 10:28:55 |
Launchpad Janitor |
cve linked |
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2019-19036 |
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| 2020-07-01 10:28:55 |
Launchpad Janitor |
cve linked |
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2019-19039 |
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| 2020-07-01 10:28:55 |
Launchpad Janitor |
cve linked |
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2019-19318 |
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| 2020-07-01 10:28:55 |
Launchpad Janitor |
cve linked |
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2019-19377 |
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| 2020-07-01 10:28:55 |
Launchpad Janitor |
cve linked |
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2019-19642 |
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| 2020-07-01 10:28:55 |
Launchpad Janitor |
cve linked |
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2019-19813 |
|
| 2020-07-01 10:28:55 |
Launchpad Janitor |
cve linked |
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2019-19816 |
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| 2020-07-01 10:28:55 |
Launchpad Janitor |
cve linked |
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2020-0543 |
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| 2020-07-01 10:28:55 |
Launchpad Janitor |
cve linked |
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2020-10711 |
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| 2020-07-01 10:28:55 |
Launchpad Janitor |
cve linked |
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2020-13143 |
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| 2020-07-01 10:50:55 |
Frank Heimes |
ubuntu-z-systems: status |
Fix Committed |
Fix Released |
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