Bug 15349

Summary:	No disk scheduler with kernel 3.19.0-desktop-2.mga5 #1 SMP
Product:	Mageia	Reporter:	Claus Reheis <looking4solutions80>
Component:	RPM Packages	Assignee:	Mageia Bug Squad <bugsquad>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	Normal	CC:	sysadmin-bugs, tmb
Version:	Cauldron
Target Milestone:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Source RPM:	kernel	CVE:
Status comment:

Description Claus Reheis 2015-02-23 23:03:50 CET

I just checked my scheduler after switching to deadline via rc.local:

cat /sys/block/sda/queue/scheduler 

and saw: "none"




kernel 3.19.0-desktop-2.mga5 #1 SMP



How reproducible:


Steps to Reproduce:
1.echo deadline > /sys/block/sda/queue/scheduler
2.cat /sys/block/sda/queue/scheduler 
3.see: "none"


Reproducible: 

Steps to Reproduce:

Comment 1 Olav Vitters 2015-02-23 23:07:27 CET

*** Bug 15348 has been marked as a duplicate of this bug. ***

Comment 2 Thierry Vignaud 2015-02-24 08:40:26 CET

Wrong component.

CC: (none) => tmb
Component: Release (media or process) => RPM Packages
Source RPM: (none) => kernel

Comment 3 Thomas Backlund 2015-02-24 14:42:48 CET

Yes, it comes from the use of the new blk-mq i/o path by default

Unfortunately upstream has not yet added support for
switching i/o schedulers to blk-mq...

So I will switch it back to non-default for mga5
and add info to wiki about how to enable blk-mq it for those
that want to use it.

Comment 4 Thomas Backlund 2015-02-25 10:46:31 CET

Fixed in 3.19.0-3

Status: NEW => RESOLVED
Resolution: (none) => FIXED

Comment 5 Claus Reheis 2015-02-26 22:03:54 CET

confirmed