oops on 4.4.0-66-generic

Bug #1691600 reported by Dustin Kirkland 
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Triaged
High
Unassigned
Xenial
Triaged
High
Unassigned

Bug Description

My long running (year old) Ubuntu 16.04 AWS instance got wedged sometime yesterday. I was able to (barely) log in, but I found a system load of 248 (on a single core system), and it was basically unusable.

After a reboot, I inspected the logs around the time at which it stopped reporting to Landscape and I found a kernel trace (attached).

Note, that I am running canonical-livepatch.

Revision history for this message
Dustin Kirkland  (kirkland) wrote :
Revision history for this message
Brad Figg (brad-figg) wrote : Missing required logs.

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1691600

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status: New → Incomplete
Changed in linux (Ubuntu):
importance: Undecided → High
status: Incomplete → Triaged
Changed in linux (Ubuntu Xenial):
status: New → Triaged
importance: Undecided → High
tags: added: kernel-da-key xenial
Revision history for this message
Joseph Salisbury (jsalisbury) wrote :

It looks like this was ZFS related. It sounds like there is no way to reproduce this bug, so it's probably best to keep a close eye on the instance.

It might be good to see if livepatch recently applied anything. Especially related to ZFS.

tags: added: kernel-key
tags: removed: kernel-key
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