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Bug 444589

Summary: xentop - incompatibility between HV and userspace toolset
Product: Red Hat Enterprise Linux 5 Reporter: Adam Stokes <astokes>
Component: kernel-xenAssignee: Tetsu Yamamoto <tyamamot>
Status: CLOSED ERRATA QA Contact: Martin Jenner <mjenner>
Severity: high Docs Contact:
Priority: high    
Version: 5.2CC: itamar, jtluka, tao, xen-maint
Target Milestone: rcKeywords: Regression
Target Release: ---   
Hardware: ia64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2009-01-20 20:05:12 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 391501, 409971, 448899    
Attachments:
Description Flags
Patch to add sysctl version check for physinfo in kernel none

Description Adam Stokes 2008-04-29 12:09:18 UTC 
Description of problem:
So far on ia64 only xentop shows following warning message.
==
sysctl operation failed -- need to rebuild the user-space tool set?
==

Version-Release number of selected component (if applicable):
xen 3.0.x

How reproducible:
100%

Steps to Reproduce:
1.#xentop -b -i 2 -d 1
2.
3.
  
Actual results:
sysctl operation failed -- need to rebuild the user-space tool set?

Expected results:
No warning

Additional info:
This incident happens primarily due to the updates provided to the HV in 5.2
Comment 2 RHEL Program Management 2008-04-29 12:14:42 UTC 
This bugzilla has Keywords: Regression.  

Since no regressions are allowed between releases, 
it is also being proposed as a blocker for this release.  

Please resolve ASAP.
Comment 4 Itamar Reis Peixoto 2008-05-16 02:38:39 UTC 
I am using 

xen-libs-3.1.2-2.fc8
kernel-xen-2.6.21.7-3.fc8
xen-3.1.2-2.fc8


and xentop is showing NETTX(k)  NETRX(k) at fixed value 0

example
 NETTX(k)  NETRX(k) 
   0          0
Comment 8 Daniel Berrangé 2008-07-21 11:04:59 UTC 
Please attach the proposed patch when switching to POST state.
Comment 9 Tetsu Yamamoto 2008-07-21 14:23:16 UTC 
Created attachment 312260 [details]
Patch to add sysctl version check for physinfo in kernel
Comment 10 Tetsu Yamamoto 2008-07-21 14:24:31 UTC 
Interface version check between HV and userspace was modified in RHEL5.2
to allow through physinfo calls with newer versions for NUMA extensions.
 HV and tools have the modification, but kernel does not have it which
is needed for xen/ia64.  The attached patch on comment #9 adds it in kernel.
Comment 11 Daniel Berrangé 2008-07-21 14:26:37 UTC 
Ok, this isn't a userspace bug then - switching to kernel-xen instead.
Comment 12 Don Zickus 2008-07-25 20:26:46 UTC 
in kernel-2.6.18-100.el5
You can download this test kernel from http://people.redhat.com/dzickus/el5
Comment 19 errata-xmlrpc 2009-01-20 20:05:12 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2009-0225.html