Public bug reported:
[Impact]
When connected to certain switches, Cavium ThunderX nodes will occasionally
fail to establish a link. On one setup (using a Cisco 10G switch), we're seeing
a failure rate of about 20%.
Manually reloading the driver modules - or rebooting - is required to
recover.
A fix is now available in linux-next that greatly reduces (though it
doesn't 100% eliminate) the frequency of occurrences (2% vs. 20%, in my
case). Investigation continues to identify a resolution for the
remaining cases.
[Test Case]
Connect Cavium ThunderX systems to a known bad switch, and put them in a reboot
loop. In my test, I use the maas cli to release/acquire/deploy systems, and
wait for a node to enter the deployment failure state.
[Regression Risk]
The fix is upstream, and internal to a specific driver only used on Cavium
ThunderX systems.
** Affects: linux (Ubuntu)
Importance: High
Assignee: dann frazier (dannf)
Status: In Progress
** Affects: linux (Ubuntu Xenial)
Importance: High
Assignee: dann frazier (dannf)
Status: In Progress
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Xenial)
Status: New => In Progress
** Changed in: linux (Ubuntu Xenial)
Assignee: (unassigned) => dann frazier (dannf)
** Changed in: linux (Ubuntu Xenial)
Importance: Undecided => High
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1597867
Title:
thunderx nics fail to establish link
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1597867/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
