Bug 847161

Summary: SRAT: Hotplug area too small on Hyper-V guest
Product: Red Hat Enterprise Linux 6 Reporter: Orion Poplawski <orion>
Component: kernelAssignee: Vitaly Kuznetsov <vkuznets>
kernel sub component: Hyper-V QA Contact: Virtualization Bugs <virt-bugs>
Status: CLOSED CANTFIX Docs Contact:
Severity: low    
Priority: unspecified CC: abgupta, beaulieumichel, dnie, jasowang, kys, leiwang, shwang, vkuznets, yacao
Version: 6.3   
Target Milestone: rc   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2015-01-23 11:14:25 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:
Attachments:
Description Flags
dmesg none

Description Orion Poplawski 2012-08-09 23:06:06 UTC
Created attachment 603366 [details]
dmesg

Description of problem:

Running under Hyper-V the following gets output to the console at boot:

SRAT: Hotplug area too small

no idea if this causes any problems (it does not appear to).

Version-Release number of selected component (if applicable):
2.6.32-279.2.1.el6.x86_64

Comment 2 Shengnan Wang 2012-12-13 05:13:12 UTC
Hi K.Y. ,

Try to reproduce the issue with 4G guests on the Hyper-V 2008 R2 and 2012 host. Found that it only occurred on the Hyper-V 2008 R2 host.
Is it a host issue instead of the RHEL guest?
The test result:
+-----------+------------------+----------------+----------------+
|           |                  |                |                |
|           |       Host       |  2008 R2       |   2012         |
+-----------+------------------+----------------+----------------+
|           |2.6.32-279.2.1.el6|reproduce       |didn't reproduce|
|x86_64(4G) +------------------+----------------+----------------+
|           | 2.6.32-279.el6   |reproduce       |didn't reproduce|
+-----------+------------------+----------------+----------------+
|           |                  |                |                |
|i386(4G)   |                  |didn't reproduce|didn't reproduce|
+-----------+------------------+----------------+----------------+

Comment 3 K. Y. Srinivasan 2012-12-13 14:39:59 UTC
This is clearly a host issue. We will submit this to Hyper-V team.

Comment 4 RHEL Program Management 2012-12-17 06:49:50 UTC
This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.

Comment 5 RHEL Program Management 2013-10-14 04:51:45 UTC
This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.

Comment 6 Michel Beaulieu 2014-01-06 17:15:53 UTC
Hello, 
I have the same message: Hotplug area too small
-
I am running Red Hat Entreprise Linux 6 
Kernel 2.6.32-431.1.2.el6.x86_64
-
With VMware fusion Professional 6.02
on MacBook Air and OS X version 10.9.1

Since this is not running production, I don't really need a fix for it. 

Regards, 

Michel Beaulieu

Comment 8 Vitaly Kuznetsov 2015-01-23 11:14:25 UTC
It seems there is nothing to do here, the issue is host-side. I'm closing it as CANTFIX, in case you have any objections please reopen.