System stalls when creating device node on booting
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
AceLan Kao | ||
linux (Ubuntu) |
Fix Released
|
Undecided
|
Phidias | ||
Xenial |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
We've found on some Apollo Lake system stalls for around 4 seconds on function `wait_for_
With bisecting we've found the patch can fix this issue:
commit 0905f04eb21fc1c
Author: Yuyang Du <email address hidden>
AuthorDate: Thu Dec 17 07:34:27 2015 +0800
Commit: Ingo Molnar <email address hidden>
CommitDate: Wed Jan 6 11:06:29 2016 +0100
sched/fair: Fix new task's load avg removed from source CPU in wake_up_new_task()
This patch can be clean picked, and shows positive result on multiple Apollo Lake system. The patch is already in v4.5+ so Yakkety is not affected.
tags: | added: originate-from-1610089 somerville |
Changed in linux (Ubuntu Xenial): | |
status: | New → Fix Committed |
Changed in hwe-next: | |
assignee: | nobody → Anthony Wong (anthonywong) |
Changed in hwe-next: | |
assignee: | Anthony Wong (anthonywong) → AceLan Kao (acelankao) |
tags: |
added: verification-done-xenial removed: verification-needed-xenial |
Changed in hwe-next: | |
status: | New → Fix Released |
Changed in linux (Ubuntu): | |
status: | Incomplete → Fix Released |
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1643797
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.