Bug 1317301

Summary:	Kernel 4.4.4 and above slows down system wide applications
Product:	[Fedora] Fedora	Reporter:	hlx98007
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	23	CC:	gansalmon, hlx98007, itamar, jonathan, kernel-maint, madhu.chinakonda, mchehab, rosand86
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-09-23 19:37:14 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description hlx98007 2016-03-13 21:41:44 UTC

Description of problem:
By installing kernel 4.4.4, noticeable system-wide overall slow down. Especially firefox, by logging into inbox.google.com without any plugins/extensions, firefox will give a "taking too long" warning whereas 4.4.3 and previous version kernels do not have.

4.4.4 is taking 5 seconds more to boot on my SSD laptop.

Version-Release number of selected component (if applicable):
kernel-4.4.4-301.fc23.x86_64

How reproducible:
Install kernel-4.4.4-301.fc23.x86_64

Actual results:
Slows down the system.

Expected results:
No slowness

Additional info:
N/A

Comment 1 hlx98007 2016-03-19 19:20:11 UTC

Not solved in 4.4.5 kernel.

Lenovo Y510P

Fedora 23 (upgraded from 22)

Comment 2 Laura Abbott 2016-09-23 19:34:29 UTC

*********** MASS BUG UPDATE **************
 
We apologize for the inconvenience.  There is a large number of bugs to go through and several of them have gone stale.  Due to this, we are doing a mass bug update across all of the Fedora 23 kernel bugs.
 
Fedora 23 has now been rebased to 4.7.4-100.fc23.  Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel.
 
If you have moved on to Fedora 24 or 25, and are still experiencing this issue, please change the version to Fedora 24 or 25.
 
If you experience different issues, please open a new bug report for those.

Comment 3 hlx98007 2016-09-23 19:37:14 UTC

I did a refresh install with Fedora 24, problem goes away.

Not sure about this anymore.