Bug 15349 - No disk scheduler with kernel 3.19.0-desktop-2.mga5 #1 SMP
Summary: No disk scheduler with kernel 3.19.0-desktop-2.mga5 #1 SMP
Status: RESOLVED FIXED
Alias: None
Product: Mageia
Classification: Unclassified
Component: RPM Packages (show other bugs)
Version: Cauldron
Hardware: x86_64 Linux
Priority: Normal normal
Target Milestone: ---
Assignee: Mageia Bug Squad
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Keywords:
: 15348 (view as bug list)
Depends on:
Blocks:
 
Reported: 2015-02-23 23:03 CET by Claus Reheis
Modified: 2015-02-26 22:03 CET (History)
2 users (show)

See Also:
Source RPM: kernel
CVE:
Status comment:

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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
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