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[Bug 1722579] [NEW] xgene nic unresponsive after ifdown/ifup

To: group.of.nepali.translators@xxxxxxxxxxxxxxxxxxx
From: dann frazier <dann.frazier@xxxxxxxxxxxxx>
Date: Tue, 10 Oct 2017 16:05:03 -0000
Reply-to: Bug 1722579 <1722579@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

Public bug reported:

[Impact]
Sean Feole discovered that if you ifdown/ifup the NIC on an X-Gene 2 system, the NIC does not come back online. While the interface is reported as up, you cannot ping the system. In addition to the obvious problems this causes for a sysadmin, it also breaks software that does this automatically, such as juju when it sets up a host bridge.

[Test Case]
Boot an X-Gene 2 system, and start pinging it from a remote system. Assuming the pinged interface is eth0, run:

$ sudo ifdown eth0; sudo ifup eth0

System will cease responding to pings.

[Regression Risk]
(Still under investigation)

** Affects: linux (Ubuntu)
     Importance: Undecided
     Assignee: dann frazier (dannf)
         Status: Fix Released

** Affects: linux (Ubuntu Xenial)
     Importance: Undecided
     Assignee: dann frazier (dannf)
         Status: In Progress

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Xenial)
     Assignee: (unassigned) => dann frazier (dannf)

** Changed in: linux (Ubuntu Xenial)
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/1722579

Title:
  xgene nic unresponsive after ifdown/ifup

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  In Progress

Bug description:
  [Impact]
  Sean Feole discovered that if you ifdown/ifup the NIC on an X-Gene 2 system, the NIC does not come back online. While the interface is reported as up, you cannot ping the system. In addition to the obvious problems this causes for a sysadmin, it also breaks software that does this automatically, such as juju when it sets up a host bridge.

  [Test Case]
  Boot an X-Gene 2 system, and start pinging it from a remote system. Assuming the pinged interface is eth0, run:

  $ sudo ifdown eth0; sudo ifup eth0

  System will cease responding to pings.

  [Regression Risk]
  (Still under investigation)

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