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Bug 812833

Summary:	qcow2 converting error when -o cluster_size <= 2048
Product:	Red Hat Enterprise Linux 6	Reporter:	Xiaoqing Wei <xwei>
Component:	qemu-kvm	Assignee:	Kevin Wolf <kwolf>
Status:	CLOSED ERRATA	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	6.3	CC:	acathrow, areis, bsarathy, dyasny, flang, juzhang, kwolf, michen, minovotn, mkenneth, shuang, sluo, virt-maint
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	qemu-kvm-0.12.1.2-2.280.el6	Doc Type:	Bug Fix
Doc Text:	No Documentation Needed	Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-06-20 11:46:45 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:

Description Xiaoqing Wei 2012-04-16 11:36:22 UTC

Description of problem:

qcow2 converting error when -o cluster_size <= 2048

Version-Release number of selected component (if applicable):
qemu-img-0.12.1.2-2.275.el6.x86_64
qemu-kvm-0.12.1.2-2.275.el6.x86_64


How reproducible:
100%

Steps to Reproduce:
1. # qemu-img convert -f qcow2 -O qcow2 /mnt/linux/RHEL-Server-6.2-32-virtio.qcow2   /home/kvm_autotest_root/images/RHEL-Server-6.2-32-virtio.qcow2 -o cluster_size=2048 -p
qemu-img: error while writing sector 47898624: Unknown error 1610389504

2.
3.
  
Actual results:
qemu-img: error while writing sector 47898624: Unknown error 1610389504

Expected results:
 works well like converting with "-o cluster_size=4096"

 


Additional info:

Comment 2 Ademar Reis 2012-04-16 15:25:50 UTC

Please run the same test on RHEL6.2 to figure out if this is a regression.

Comment 3 Xiaoqing Wei 2012-04-17 01:57:29 UTC

(In reply to comment #2)
> Please run the same test on RHEL6.2 to figure out if this is a regression.

nope, RHEL6.2 GA still fails, but unlike 6.3, it didn't mention at which sector.
# qemu-img convert -f qcow2 -O qcow2 /mnt/linux/RHEL-Server-6.2-32-virtio.qcow2   /home/kvm_autotest_root/images/RHEL-Server-6.2-32-virtio.qcow2 -o cluster_size=2048 -p
qemu-img: error while writing

qemu-img-0.12.1.2-2.209.el6.x86_64

Comment 8 langfang 2012-04-25 04:51:31 UTC

reporduce this issue with steps and  environment as follows:
#uname -r 
2.6.32-262.el6.x86_64
#rpm -q qemu-kvm
qemu-kvm-0.12.1.2-2.278.el6.x86_64
steps:
1)qemu-img convert -f qcow2 -O qcow2 tracing-run-rhel6.3-copy1.qcow2 tracing-run-rhel6.3-copy2.qcow2 -o cluster_size=2048 -p

results:
qemu-img: error while writing sector 28430336: Unknown error 1610174464

verify this issue with steps and  environment as follows:

#uname -r 
2.6.32-262.el6.x86_64
#rpm -q qemu-kvm
qemu-kvm-0.12.1.2-2.282.el6.x86_64
steps:
1)# qemu-img convert -f qcow2 -O qcow2 tracing-run-rhel6.3-copy1.qcow2 tracing-run-rhel6.3-copy2.qcow2 -o cluster_size=2048 -p
    (100.00/100%)

according to above test results ,this issue has been fixed.

Comment 10 Michal Novotny 2012-05-04 13:30:14 UTC

    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
No Documentation Needed

Comment 11 errata-xmlrpc 2012-06-20 11:46:45 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.

http://rhn.redhat.com/errata/RHBA-2012-0746.html