Bug 596694 - PMQoS dbus (/proc) communication problem
Summary: PMQoS dbus (/proc) communication problem
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: kernel   
(Show other bugs)
Version: 6.0
Hardware: All
OS: Linux
low
medium
Target Milestone: rc
: ---
Assignee: Red Hat Kernel Manager
QA Contact: Red Hat Kernel QE team
URL:
Whiteboard:
Keywords: Regression, RHELNAK
Depends On: 519967
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-05-27 10:24 UTC by Jan Ščotka
Modified: 2010-08-05 05:35 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2010-08-05 05:35:13 UTC
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)

Description Jan Ščotka 2010-05-27 10:24:22 UTC
There was a problem with kernel interface for PMQoS some times ago.
How is state now? It is okay now.
There should be communication over Dbus between
power management - dbus - kernel - proc dirs

Comment 2 Richard Hughes 2010-06-01 12:37:11 UTC
The /dev/cpu_dma_latency and /dev/network_latency device files are missing in el6 and fedora kernels for some reason.

The supported devices are the e1000e, ipw2100, and igbvf. I have the former installed, so I should be getting the pmqos interface files. I'm doing some more debugging now, and am waiting for test kernels to compile.

Comment 3 Andy Gospodarek 2010-06-04 15:28:57 UTC
Seems to be working for me:

$ uname -a 
Linux eeepc 2.6.32.9-70.fc12.i686 #1 SMP Wed Mar 3 05:14:32 UTC 2010 i686 i686 i386 GNU/Linux
$ ls /dev | grep latency
cpu_dma_latency
network_latency

Comment 4 Richard Hughes 2010-06-21 13:46:03 UTC
I'm half way through a test document. I should be finished in the next few days.

Comment 6 RHEL Product and Program Management 2010-07-28 16:37:43 UTC
This issue has been proposed when we are only considering blocker
issues in the current Red Hat Enterprise Linux release.

** If you would still like this issue considered for the current
release, ask your support representative to file as a blocker on
your behalf. Otherwise ask that it be considered for the next
Red Hat Enterprise Linux release. **


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