Add cpufreq-powernv bugfix for error reporting of throttled frequency to 15.04

Bug #1440970 reported by bugproxy
This bug report is a duplicate of:  Bug #1452547: Report cpu frequency throttling. Edit Remove
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
In Progress
Medium
Chris J Arges
Vivid
In Progress
Medium
Chris J Arges

Bug Description

[Impact]
This is a request to include cpufreq-powernv bugfix to 15.04.

This patch duly reports cpu frequency throttling scenarios.
https://lkml.org/lkml/2015/3/26/574

This is a trivial reporting which can be used to identify degradation in performance due to throttled cpu frequency.

[Fix]
commit 09a972d1620934142d30cfda455ffe429af751c4 upstream (4.1)

[Test Case]
Run powernv machine and check kernel log for cpufreq throttling messages.

bugproxy (bugproxy)
tags: added: architecture-ppc64le bugnameltc-123257 severity-high targetmilestone-inin1504
Luciano Chavez (lnx1138)
affects: ubuntu → linux (Ubuntu)
Revision history for this message
bugproxy (bugproxy) wrote : Comment bridged from LTC Bugzilla

------- Comment From <email address hidden> 2015-04-07 04:46 EDT-------
Following is the latest version of the patch.
https://lkml.org/lkml/2015/4/1/181

Revision history for this message
Tim Gardner (timg-tpi) wrote :

I would rather wait until this patch has at least made it to linux-next, but preferably mainline.

Changed in linux (Ubuntu Vivid):
assignee: nobody → Tim Gardner (timg-tpi)
status: New → In Progress
Revision history for this message
bugproxy (bugproxy) wrote :

------- Comment From <email address hidden> 2015-04-10 05:18 EDT-------
(In reply to comment #8)
> I would rather wait until this patch has at least made it to linux-next, but
> preferably mainline.

This patch is picked up for 4.1.

09a972d1620934142d30cfda455ffe429af751c4 cpufreq: powernv: Report cpu frequency throttling

linux-pm/linux-next

bugproxy (bugproxy)
tags: added: targetmilestone-inin1510
removed: targetmilestone-inin1504
Revision history for this message
Chris J Arges (arges) wrote :

This is a duplicate.

Changed in linux (Ubuntu Vivid):
assignee: Tim Gardner (timg-tpi) → Chris J Arges (arges)
Changed in linux (Ubuntu):
assignee: Tim Gardner (timg-tpi) → Chris J Arges (arges)
Changed in linux (Ubuntu Vivid):
importance: Undecided → Medium
Changed in linux (Ubuntu):
importance: Undecided → Medium
description: updated
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