Bug 555281

Summary:	Got some harmless errors when checking virtio qcow2 image after running kvm autotest 'ioquit'
Product:	Red Hat Enterprise Linux 5	Reporter:	Yolkfull Chow <yzhou>
Component:	kvm	Assignee:	Kevin Wolf <kwolf>
Status:	CLOSED DUPLICATE	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	5.4.z	CC:	llim, ndai, virt-maint, ykaul
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2010-07-15 11:54:43 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:	580948

Description Yolkfull Chow 2010-01-14 09:45:01 UTC

Description of problem:
Run kvm autotest 'ioquit' with virtio + qcow2 format image, will failed during checking image got some errors like this:

ERROR cluster 1617900 refcount=1 reference=0


Sometimes can find many such kind of errors though image is not corrupted. 
Confirmed with Kevin, these errors are harmless besides wasting some disk space for guest.


Version-Release number of selected component (if applicable):
kvm-83-105.el5_4.18

How reproducible:
So often

Steps to Reproduce:
1. run autotest kvm subtest 'ioquit'
(This test mainly runs dbench within guest and during dbench is running in guest, kill the autotest process along with all its child-processes including 'qemu-kvm'.
2. 
3.
  
Actual results:
Got some errors though they are harmless

Expected results:
Should not got these harmless errors if image is actually not corrupted.
Maybe let qemu-img fix this or replace 'Error' with 'Warning' as Kevin referred.

Additional info:

Comment 2 Kevin Wolf 2010-07-15 11:54:43 UTC


*** This bug has been marked as a duplicate of bug 606651 ***