| 2016-10-03 18:43:10 |
LaMont Jones |
bug |
|
|
added bug |
| 2016-10-03 18:43:38 |
LaMont Jones |
bug task added |
|
maas |
|
| 2016-10-03 18:44:56 |
LaMont Jones |
nominated for series |
|
Ubuntu Xenial |
|
| 2016-10-03 18:44:56 |
LaMont Jones |
bug task added |
|
ifupdown (Ubuntu Xenial) |
|
| 2016-10-03 18:52:28 |
LaMont Jones |
description |
With the switch to systemd, all support for iscsi root (and other) filesystems disappeared, since shutdown yanks the rug out from under us.
Rather than just relying on /etc/iscsi/iscsi.initramfs (which d-i creates..), the DEV check should be expanded to include iscsi devices, and networking.service ExecStop should honor those checks. |
With the switch to systemd, all support for iscsi root (and other) filesystems disappeared, since shutdown yanks the rug out from under us.
Rather than just relying on /etc/iscsi/iscsi.initramfs (which d-i creates..), the DEV check should be expanded to include iscsi devices, and networking.service ExecStop should honor those checks.
Related bugs:
* bug 1229458: grub2 needed changes
* bug 1621615: network not configured when ipv6 netbooted into cloud-init
* bug 1621507: ipv6 network boot does not work
[Impact]
With the changes from the above, the iscsi root (at least in the ipv6 case) gets disconneceted prior to clean shutdown (ifdown downs the interface), resulting in a failure to enlist, commission, or deploy cleanly under MAAS. (and a failure to cleanly unmount the root filesystem when it is over iscsi.)
[Test Case]
Given a MAAS 2.0 installation, and the packages in the other bugs, attempt to enlist, commission, or deploy a host with xenial.
[Regression potential]
This restores the pre-xenial behavior of not shutting down the interface if there are network drives at the time that neworking is stopped (making it a no-op.) The additional change is to detect "/dev/disk/by-path/*-iscsi-*" as a network disk, replacing the check for the existence of /etc/iscsi/iscsi.initramfs, which was only created by debian-installer (and maas until recently). |
|
| 2016-10-10 15:05:28 |
Andres Rodriguez |
maas: status |
New |
Triaged |
|
| 2016-10-10 15:05:31 |
Andres Rodriguez |
maas: milestone |
|
2.1.0 |
|
| 2016-10-11 22:34:07 |
LaMont Jones |
ifupdown (Ubuntu): assignee |
LaMont Jones (lamont) |
|
|
| 2016-10-12 20:04:12 |
Scott Moser |
ifupdown (Ubuntu): status |
New |
Confirmed |
|
| 2016-10-12 20:04:16 |
Scott Moser |
ifupdown (Ubuntu): importance |
Undecided |
High |
|
| 2016-10-12 20:04:19 |
Scott Moser |
ifupdown (Ubuntu Xenial): status |
New |
Confirmed |
|
| 2016-10-12 20:04:22 |
Scott Moser |
ifupdown (Ubuntu Xenial): importance |
Undecided |
High |
|
| 2016-10-12 20:35:41 |
Scott Moser |
bug |
|
|
added subscriber Martin Pitt |
| 2016-10-13 17:13:47 |
Andres Rodriguez |
maas: milestone |
2.1.0 |
2.1.1 |
|
| 2016-10-13 20:16:23 |
Scott Moser |
ifupdown (Ubuntu): assignee |
|
Scott Moser (smoser) |
|
| 2016-10-13 20:16:26 |
Scott Moser |
ifupdown (Ubuntu Xenial): assignee |
|
Scott Moser (smoser) |
|
| 2016-10-17 17:43:10 |
Scott Moser |
bug watch added |
|
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=841106 |
|
| 2016-10-17 17:43:10 |
Scott Moser |
bug task added |
|
ifupdown (Debian) |
|
| 2016-10-17 22:04:18 |
Bug Watch Updater |
ifupdown (Debian): status |
Unknown |
New |
|
| 2016-10-20 18:30:48 |
Scott Moser |
nominated for series |
|
Ubuntu Yakkety |
|
| 2016-10-20 18:30:48 |
Scott Moser |
bug task added |
|
ifupdown (Ubuntu Yakkety) |
|
| 2016-10-20 18:31:03 |
Scott Moser |
ifupdown (Ubuntu Yakkety): importance |
Undecided |
Medium |
|
| 2016-10-20 18:31:03 |
Scott Moser |
ifupdown (Ubuntu Yakkety): status |
New |
Confirmed |
|
| 2016-10-20 19:32:41 |
Martin Pitt |
ifupdown (Ubuntu Yakkety): status |
Confirmed |
Fix Committed |
|
| 2016-10-20 19:32:43 |
Martin Pitt |
bug |
|
|
added subscriber Ubuntu Stable Release Updates Team |
| 2016-10-20 19:32:46 |
Martin Pitt |
bug |
|
|
added subscriber SRU Verification |
| 2016-10-20 19:32:52 |
Martin Pitt |
tags |
maas-ipv6 |
maas-ipv6 verification-needed |
|
| 2016-10-20 19:33:18 |
Martin Pitt |
ifupdown (Ubuntu): status |
Confirmed |
Fix Committed |
|
| 2016-10-20 21:09:54 |
Launchpad Janitor |
ifupdown (Ubuntu): status |
Fix Committed |
Fix Released |
|
| 2016-11-04 14:32:49 |
Blake Rouse |
maas: milestone |
2.1.1 |
2.1.2 |
|
| 2016-11-23 13:51:05 |
Andres Rodriguez |
maas: milestone |
2.1.2 |
2.1.3 |
|
| 2016-11-30 17:08:46 |
Scott Moser |
tags |
maas-ipv6 verification-needed |
maas-ipv6 verification-done |
|
| 2016-11-30 17:40:48 |
Scott Moser |
ifupdown (Ubuntu Xenial): status |
Confirmed |
In Progress |
|
| 2016-11-30 18:13:37 |
Scott Moser |
description |
With the switch to systemd, all support for iscsi root (and other) filesystems disappeared, since shutdown yanks the rug out from under us.
Rather than just relying on /etc/iscsi/iscsi.initramfs (which d-i creates..), the DEV check should be expanded to include iscsi devices, and networking.service ExecStop should honor those checks.
Related bugs:
* bug 1229458: grub2 needed changes
* bug 1621615: network not configured when ipv6 netbooted into cloud-init
* bug 1621507: ipv6 network boot does not work
[Impact]
With the changes from the above, the iscsi root (at least in the ipv6 case) gets disconneceted prior to clean shutdown (ifdown downs the interface), resulting in a failure to enlist, commission, or deploy cleanly under MAAS. (and a failure to cleanly unmount the root filesystem when it is over iscsi.)
[Test Case]
Given a MAAS 2.0 installation, and the packages in the other bugs, attempt to enlist, commission, or deploy a host with xenial.
[Regression potential]
This restores the pre-xenial behavior of not shutting down the interface if there are network drives at the time that neworking is stopped (making it a no-op.) The additional change is to detect "/dev/disk/by-path/*-iscsi-*" as a network disk, replacing the check for the existence of /etc/iscsi/iscsi.initramfs, which was only created by debian-installer (and maas until recently). |
=== Begin SRU Template ===
[Impact]
The systemd networking.service unit will bring down the loopback device (lo)
when it is stopped. This behavior differs from the behavior in other
Ubuntu releases (upstart's networking.conf), where 'lo' is not taken down.
The problem that was seen was that iscsi root over ipv6 would hang on
shutdown.
[Test Case]
Test is fairly simple and can be demonstrated in lxc container.
The key is really that the lo device should not have its link set down
after stopping networking.service. So, below:
out=$(ip address show dev lo up); [ -n "$out" ] && echo "$out" || echo empty
should not show 'empty', but should have LOOPBACK,UP,LOWER in its output.
$ release=yakkety; name=y1
$ lxc launch ubuntu-daily:$release $name
$ sleep 10
$ lxc exec $name /bin/bash
## show only things that are up (note output has LOOPBACK,UP,LOWER_UP)
% ip link show dev lo
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
% ip address show dev lo up
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
## Stop the service and show lo link is down (no 'UP' or 'LOWER_UP').
% systemctl stop networking.service
% ip link show dev lo
1: lo: <LOOPBACK> mtu 65536 qdisc noqueue state DOWN mode DEFAULT group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
% out=$(ip address show dev lo up); [ -n "$out" ] && echo "$out" || echo empty
empty
## Now enable proposed, install update, reboot and show.
% rel=$(lsb_release -sc)
% echo "deb http://archive.ubuntu.com/ubuntu $rel-proposed main" |
sudo tee /etc/apt/sources.list.d/proposed.list
% sudo apt update -qy && sudo apt install -qy ifupdown </dev/null
% dpkg-query --show ifupdown
ifupdown 0.8.13ubuntu3
% sudo reboot
## in rebooted system
% ip link show dev lo
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
% ip address show dev lo up
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
% systemctl stop networking.service
% ip link show dev lo
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
% out=$(ip address show dev lo up); [ -n "$out" ] && echo "$out" || echo empty
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
[Regression Potential]
Should be pretty low. zesty and yakkety-proposed have this.
Taking down 'lo' is often cause of problems, and never the solution to
problems as far as I'm aware.
[Other Info]
=== End SRU Template ===
With the switch to systemd, all support for iscsi root (and other) filesystems disappeared, since shutdown yanks the rug out from under us.
Rather than just relying on /etc/iscsi/iscsi.initramfs (which d-i creates..), the DEV check should be expanded to include iscsi devices, and networking.service ExecStop should honor those checks.
Related bugs:
* bug 1229458: grub2 needed changes
* bug 1621615: network not configured when ipv6 netbooted into cloud-init
* bug 1621507: ipv6 network boot does not work |
|
| 2016-12-01 17:29:52 |
Brian Murray |
removed subscriber Ubuntu Stable Release Updates Team |
|
|
|
| 2016-12-01 17:29:50 |
Launchpad Janitor |
ifupdown (Ubuntu Yakkety): status |
Fix Committed |
Fix Released |
|
| 2016-12-09 18:14:55 |
Robie Basak |
ifupdown (Ubuntu Xenial): status |
In Progress |
Fix Committed |
|
| 2016-12-09 18:14:58 |
Robie Basak |
bug |
|
|
added subscriber Ubuntu Stable Release Updates Team |
| 2016-12-09 18:15:05 |
Robie Basak |
tags |
maas-ipv6 verification-done |
maas-ipv6 |
|
| 2016-12-09 18:15:06 |
Robie Basak |
tags |
maas-ipv6 |
maas-ipv6 verification-needed |
|
| 2016-12-09 18:15:57 |
Robie Basak |
bug |
|
|
added subscriber Robie Basak |
| 2016-12-19 14:27:10 |
LaMont Jones |
tags |
maas-ipv6 verification-needed |
maas-ipv6 verification-done |
|
| 2016-12-19 16:28:35 |
Launchpad Janitor |
ifupdown (Ubuntu Xenial): status |
Fix Committed |
Fix Released |
|
| 2016-12-20 13:00:53 |
Gavin Panella |
maas: status |
Triaged |
Confirmed |
|
| 2017-01-11 03:36:08 |
Bug Watch Updater |
ifupdown (Debian): status |
New |
Fix Released |
|
| 2019-09-19 15:01:47 |
Adam Collard |
maas: status |
Confirmed |
Invalid |
|
