[Hyper-V] udev trying to modify owner and mode of /dev/vmbus/hv_vss
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
High
|
Unassigned | ||
Wily |
Fix Released
|
High
|
Unassigned | ||
Xenial |
Fix Released
|
High
|
Unassigned |
Bug Description
While testing Ubuntu 15.10 Wily Werewolf (development branch) 64 bit we found the below issue.
Repro rate: 100%
Repro details:
Hyper-V: Server 2012 (no R2) - WS 2012 is the only affected platform
Daily build version: 2015.09.10
Kernel: kernel 4.2.0-7-generic
During the below event, we also noticed that system-udevd is constantly around 100% CPU on the VM, taking a lot of cycles.
On Server 2012 we don't have the Live backup with VSS feature, so these messages should not occur in the first place.
After 20 minutes we have over 3000 messages in the logs, all like below:
Sep 14 17:43:33 ubuntu systemd-
Sep 14 17:44:00 ubuntu systemd-
Sep 14 17:44:00 ubuntu systemd-
Sep 14 17:44:01 ubuntu systemd-
Related branches
Changed in linux (Ubuntu): | |
status: | Incomplete → Confirmed |
Changed in linux (Ubuntu Wily): | |
assignee: | nobody → Joseph Salisbury (jsalisbury) |
Changed in linux (Ubuntu): | |
assignee: | nobody → Joseph Salisbury (jsalisbury) |
Changed in linux (Ubuntu Wily): | |
importance: | Medium → High |
Changed in linux (Ubuntu): | |
importance: | Medium → High |
tags: | added: kernel-hyper-v |
Changed in linux (Ubuntu Wily): | |
status: | In Progress → Fix Committed |
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1496927
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.