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Bug 1177710 - Command 'kvm_stat' couldn't be executecd on PPC rhel system
Summary: Command 'kvm_stat' couldn't be executecd on PPC rhel system
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: qemu-kvm-rhev
Version: 7.1
Hardware: ppc64
OS: Linux
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: David Gibson
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-12-30 02:59 UTC by Gu Nini
Modified: 2015-12-04 16:24 UTC (History)
7 users (show)

Fixed In Version: QEMU 2.2
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-12-04 16:24:56 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2015:2546 0 normal SHIPPED_LIVE qemu-kvm-rhev bug fix and enhancement update 2015-12-04 21:11:56 UTC

Description Gu Nini 2014-12-30 02:59:57 UTC 
Description of problem:
When issue command 'kvm_stat' on the host, it failed with following error prompt:
[root@ibm-p8-kvm-01-qe ~]# kvm_stat
Traceback (most recent call last):
  File "/usr/bin/kvm_stat", line 196, in <module>
    filters[f] = (filters[f][0], invert(filters[f][1]))
  File "/usr/bin/kvm_stat", line 193, in invert
    return dict((x[1], x[0]) for x in d.iteritems())
AttributeError: 'NoneType' object has no attribute 'iteritems'

Version-Release number of selected component (if applicable):
Host kernel: 3.10.0-216.el7.ppc64/3.10.0-217.el7.ppc64
Qemu-kvm:
qemu-kvm-rhev-2.1.2-17.el7.ppc64
qemu-kvm-tools-rhev-2.1.2-17.el7.ppc64
qemu-kvm-common-rhev-2.1.2-17.el7.ppc64
qemu-kvm-rhev-debuginfo-2.1.2-17.el7.ppc64


How reproducible:
100%


Additional info:
None
Comment 2 David Gibson 2015-01-13 04:56:01 UTC 
Ok, looks like the version of kvm_stat in RHEL just doesn't have ppc support.  Michael Ellerman posted a bunch of extensions to fix that which are merged upstream.

I'll backport.
Comment 3 David Gibson 2015-01-20 03:00:59 UTC 
These patches are also already included in the qemu-2.2 based branch.

Miya et al, have you moved onto testing that yet?
Comment 6 Gu Nini 2015-06-30 09:04:53 UTC 
Verified the bug on following sw versions:

Host kernel: 3.10.0-282.el7.ppc64le
Qemu-kvm-rhev: qemu-kvm-rhev-2.3.0-5.el7.ppc64le


Now the command output is as follows:
[root@ibm-p8-kvm-02-qe cfg]# kvm_stat
kvm statistics

 Event                                        Total Current
 kvm_userspace_exit                        10046876    7563
 kvm_ppc_instr                                10894       5
 kvm_ack_irq                                   1218       0
 kvm_userspace_exit(PAPR_HCALL)                  61	  0
Comment 7 Gu Nini 2015-07-30 06:13:33 UTC 
(In reply to Gu Nini from comment #6)


Deeper verify the bug on both ppc64be and ppc64le host with following sw versions:

PPC64BE HOST:
host kernel: 3.10.0-300.el7.ppc64
Qemu-kvm-rhev: qemu-kvm-rhev-2.3.0-13.el7.ppc64

PPC64LE HOST:
host kernel: 3.10.0-300.el7.ppc64le
Qemu-kvm-rhev: qemu-kvm-rhev-2.3.0-13.el7.ppc64le


Now the cmd 'kvm_stat' could be executed without any problem.
Comment 8 Qunfang Zhang 2015-08-03 05:49:35 UTC 
Setting to VERIFIED according to comment 7.
Comment 10 errata-xmlrpc 2015-12-04 16:24:56 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-2546.html
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