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Bug 1088788 - qemu-img creates truncated VMDK image with subformat=twoGbMaxExtentFlat
Summary: qemu-img creates truncated VMDK image with subformat=twoGbMaxExtentFlat
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: qemu-kvm
Version: 6.6
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: rc
: ---
Assignee: Fam Zheng
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On: 1039791
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-04-17 07:55 UTC by Fam Zheng
Modified: 2014-10-14 06:58 UTC (History)
9 users (show)

Fixed In Version: qemu-kvm-0.12.1.2-2.432.el6
Doc Type: Bug Fix
Doc Text:
Clone Of: 1039791
Environment:
Last Closed: 2014-10-14 06:58:22 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2014:1490 0 normal SHIPPED_LIVE qemu-kvm bug fix and enhancement update 2014-10-14 01:28:27 UTC

Description Fam Zheng 2014-04-17 07:55:25 UTC 
+++ This bug was initially created as a clone of Bug #1039791 +++

Description of problem:
The command:
qemu-img create -f vmdk -o subformat=twoGbMaxExtentFlat test.vmdk 1000G

will create a test.vmdk with truncated content, because of vmdk driver has a fixed size buffer.

Expected results:
A correct image should be created.

=====================================
$ cat test.vmdk 
# Disk DescriptorFile
version=1
CID=52a672ff
parentCID=ffffffff
createType="twoGbMaxExtentFlat"

# Extent description
RW 4194304 FLAT "test-f001.vmdk" 0
RW 4194304 FLAT "test-f002.vmdk" 0
RW 4194304 FLAT "test-f003.vmdk" 0
RW 4194304 FLAT "test-f004.vmdk" 0
RW 4194304 FLAT "test-f005.vmdk" 0
RW 4194304 FLAT "test-f006.vmdk" 0
RW 4194304 FLAT "test-f007.vmdk" 0
RW 4194304 FLAT "test-f008.vmdk" 0
RW 4194304 FLAT "test-f009.vmdk" 0
RW 4194304 FLAT "test-f010.vmdk" 0
RW 4194304 FLAT "test-f011.vmdk" 0
RW 4194304 FLAT "test-f012.vmdk" 0
RW 4194304 FLAT "test-f013.vmdk" 0
RW 4194304 FLAT "test-f014.vmdk" 0
RW 4194304 FLAT "test-f015.vmdk" 0
RW 4194304 FLAT "test-f016.vmdk" 0
RW 4194304 FLAT "test-f017.vmdk" 0
RW 4194304 FLAT "test-f018.vmdk" 0
RW 4194304 FLAT "test-f019.vmdk" 0
RW 4194304 FLAT "test-f020.vmdk" 0
RW 4194304 FLAT "test-f021.vmdk" 0
RW 4194304 FLAT "test-f022.vmdk" 0
RW 4194304 FLAT "test-f023.vmdk" 0
RW 4194304 FLAT "test-f024.vmdk" 0
RW 4194304 FLAT "test-f025.vmdk" 0
RW 4194304 FLAT "test-f026.vmdk" 0
RW 4194304 FLAT "test-f027.vmdk" 0
RW 4194304 FLAT "test-f028.vmdk" 0
RW 4194304 FLAT "test-f029.vmdk" 0
RW 4194304 FLAT "test-f030.vmdk" 0
RW 4194304 FLAT "test-f031.vmdk" 0
RW 4194304 FLAT "test-f032.vmdk" 0
RW 4194304 FLAT "test-f033.vmdk" 0
RW 4194304 FLAT "test-f034.vmdk" 0
RW 4194304 FLAT "test-f035.vmdk" 0
RW 4194304 FLAT "test-f036.vmdk" 0
RW 4194304 FLAT "test-f037.vmdk" 0
RW 4194304 FLAT "test-f038.vmdk" 0
RW 4194304 FLAT "test-f039.vmdk" 0
RW 4194304 FLAT "test-f040.vmdk" 0
RW 4194304 FLAT "test-f041.vmdk" 0
RW 4194304 FLAT "test-f042.vmdk" 0
RW 4194304 FLAT "test-f043.vmdk" 0
RW 4194304 FLAT "test-f044.vmdk" 0
RW 4194304 FLAT "test-f045.vmdk" 0
RW 4194304 FLAT "test-f046.vmdk" 0
RW 4194304 FLAT "test-f047.vmdk" 0
RW 4194304 FLAT "test-f048.vmdk" 0
RW 4194304 FLAT "test-f049.vmdk" 0
RW 4194304 FLAT "test-f050.vmdk" 0
RW 4194304 FLAT "test-f051.vmdk" 0
RW 4194304 FLAT "test-f052.vmdk" 0
RW 4194304 FLAT "test-f053.vmdk" 0
RW 4194304 FLAT "test-f054.vmdk" 0
RW 4194304 FLAT "test-f055.vmdk" 0
RW 4194304 FLAT "test-f056.vmdk" 0
RW 4194304 FLAT "test-f057.vmdk" 0
RW 4194304 FLAT "test-f058.vmdk" 0
RW 4194304 FLAT "test-f059.vmdk" 0
RW 4194304 FLAT "test-f060.vmdk" 0
RW 4194304 FLAT "test-f061.vmdk" 0
RW 4194304 FLAT "test-f062.vmdk" 0
RW 4194304 FLAT "test-f063.vmdk" 0
RW 4194304 FLAT "test-f064.vmdk" 0
RW 4194304 FLAT "test-f065.vmdk" 0
RW 4194304 FLAT "test-f066.vmdk" 0
RW 4194304 FLAT "test-f067.vmdk" 0
RW 4194304 FLAT "test-f068.vmdk" 0
RW 4194304 FLAT "test-f069.vmdk" 0
RW 4194304 FLAT "test-f070.vmdk" 0
RW 4194304 FLAT "test-f071.vmdk" 0
RW 4194304 FLAT "test-f072.vmdk" 0
RW 4194304 FLAT "test-f073.vmdk" 0
RW 4194304 FLAT "test-f074.vmdk" 0
RW 4194304 FLAT "test-f075.vmdk" 0
RW 4194304 FLAT "test-f076.vmdk" 0
RW 4194304 FLAT "test-f077.vmdk" 0
RW 4194304 FLAT "test-f078.vmdk" 0
RW 4194304 FLAT "test-f079.vmdk" 0
RW 4194304 FLAT "test-f080.vmdk" 0
RW 4194304 FLAT "test-f081.vmdk" 0
RW 4194304 FLAT "test-f082.vmdk" 0
RW 4194304 FLAT "test-f083.vmdk" 0
RW 4194304 FLAT "test-f084.vmdk" 0
RW 4194304 FLAT "test-f085.vmdk" 0
RW 4194304 FLAT "test-f086.vmdk" 0
RW 4194304 FLAT "test-f087.vmdk" 0
RW 4194304 FLAT "test-f088.vmdk" 0
RW 4194304 FLAT "test-f089.vmdk" 0
RW 4194304 FLAT "test-f090.vmdk" 0
RW 4194304 FLAT "test-f091.vmdk" 0
RW 4194304 FLAT "test-f092.vmdk" 0
RW 4194304 FLAT "test-f093.vmdk" 0
RW 4194304 FLAT "test-f094.vmdk" 0
RW 4194304 FLAT "test-f095.vmdk" 0
RW 4194304 FLAT "test-f096.vmdk" 0
RW 4194304 FLAT "test-f097.vmdk" 0
RW 4194304 FLAT "test-f098.vmdk" 0
RW 4194304 FLAT "test-f099.vmdk" 0
RW 4194304 FLAT "test-f100.vmdk" 0
RW 4194304 FLAT "test-f101.vmdk" 0
RW 4194304 FLAT "test-f102.vmdk" 0
RW 4194304 FLAT "test-f103.vmdk" 0
RW 4194304 FLAT "test-f104.vmdk" 0
RW 4194304 FLAT "test-f105.vmdk" 0
RW 4194304 FLAT "test-f106.vmdk" 0
RW 4194304 FLAT "test-f107.vmdk" 0
RW 4194304 FLAT "test-f108.vmdk" 0
RW 4194304 FLAT "test-f109.vmdk" 0
RW 4194304 FLAT "test-f110.vmdk" 0
RW 4194304 FLAT "test-f111.vmdk" 0
RW 4194304 FLAT "test-f112.vmdk" 0
RW 4194304 FLAT "test-f113.vmdk" 0
RW 4194304 FLAT "test-                        <- From here the description file is truncated
Comment 9 Jeff Nelson 2014-07-29 15:56:55 UTC 
Fix included in qemu-kvm-0.12.1.2-2.432.el6
Comment 11 Sibiao Luo 2014-07-30 02:41:02 UTC 
Reproduce this issue on qemu-kvm-rhev-0.12.1.2-2.431.el6.x86_64 with twoGbMaxExtentSparse and twoGbMaxExtentFlat subformat.

[root@amd-2427-32-1 home]# qemu-img create -f vmdk -o subformat=twoGbMaxExtentFlat test.vmdk 1T
Formatting 'test.vmdk', fmt=vmdk size=1099511627776 compat6=off subformat='twoGbMaxExtentFlat' zeroed_grain=off 

[root@amd-2427-32-1 home]# cat test.vmdk 
# Disk DescriptorFile
version=1
CID=53d8cb19
parentCID=ffffffff
createType="twoGbMaxExtentFlat"

# Extent description
RW 4194304 FLAT "test-f001.vmdk" 0
RW 4194304 FLAT "test-f002.vmdk" 0
RW 4194304 FLAT "test-f003.vmdk" 0
...
RW 4194304 FLAT "test-f111.vmdk" 0
RW 4194304 FLAT "test-f112.vmdk" 0
RW 4194304 FLAT "test-f113.vmdk" 0
RW 4194304 FLAT "test-[root@amd-2427-32-1 home]# 

[root@amd-2427-32-1 home]# qemu-img create -f vmdk -o subformat=twoGbMaxExtentSparse test.vmdk 1T
Formatting 'test.vmdk', fmt=vmdk size=1099511627776 compat6=off subformat='twoGbMaxExtentSparse' zeroed_grain=off 
[root@amd-2427-32-1 home]# 
[root@amd-2427-32-1 home]# cat test.vmdk 
# Disk DescriptorFile
version=1
CID=53d8cb30
parentCID=ffffffff
createType="twoGbMaxExtentSparse"

# Extent description
RW 4194304 SPARSE "test-s001.vmdk"
RW 4194304 SPARSE "test-s002.vmdk"
RW 4194304 SPARSE "test-s003.vmdk"
RW 4194304 SPARSE "test-s004.vmdk"
...
RW 4194304 SPARSE "test-s111.vmdk"
RW 4194304 SPARSE "test-s112.vmdk"
RW 4194304 SPARSE "test-s113.vmdk"
RW 4194304 SPARSE "t[root@amd-2427-32-1 home]#
Comment 12 Sibiao Luo 2014-07-30 02:51:56 UTC 
Verify this issue on qemu-kvm-rhev-0.12.1.2-2.432.el6.x86_64 with twoGbMaxExtentSparse and twoGbMaxExtentFlat subformat. 

host info:
# uname -r && rpm -q qemu-kvm-rhev
2.6.32-493.el6.x86_64
qemu-kvm-rhev-0.12.1.2-2.432.el6.x86_64

[root@amd-2427-32-1 home]# qemu-img create -f vmdk -o subformat=twoGbMaxExtentFlat test.vmdk 1T
Formatting 'test.vmdk', fmt=vmdk size=1099511627776 compat6=off subformat='twoGbMaxExtentFlat' zeroed_grain=off 
[root@amd-2427-32-1 home]# cat test.vmdk
# Disk DescriptorFile
version=1
CID=53d8cdb8
parentCID=ffffffff
createType="twoGbMaxExtentFlat"

# Extent description
RW 4194304 FLAT "test-f001.vmdk" 0
RW 4194304 FLAT "test-f002.vmdk" 0
RW 4194304 FLAT "test-f003.vmdk" 0
...
RW 4194304 FLAT "test-f510.vmdk" 0
RW 4194304 FLAT "test-f511.vmdk" 0
RW 4194304 FLAT "test-f512.vmdk" 0

# The Disk Data Base
#DDB

ddb.virtualHWVersion = "4"
ddb.geometry.cylinders = "2130440"
ddb.geometry.heads = "16"
ddb.geometry.sectors = "63"
ddb.adapterType = "ide"
[root@amd-2427-32-1 home]# 
[root@amd-2427-32-1 home]# 
[root@amd-2427-32-1 home]# qemu-img create -f vmdk -o subformat=twoGbMaxExtentSparse test.vmdk 1T
Formatting 'test.vmdk', fmt=vmdk size=1099511627776 compat6=off subformat='twoGbMaxExtentSparse' zeroed_grain=off 
[root@amd-2427-32-1 home]# cat test.vmdk
# Disk DescriptorFile
version=1
CID=53d8cdd5
parentCID=ffffffff
createType="twoGbMaxExtentSparse"

# Extent description
RW 4194304 SPARSE "test-s001.vmdk"
RW 4194304 SPARSE "test-s002.vmdk"
RW 4194304 SPARSE "test-s003.vmdk"
...
RW 4194304 SPARSE "test-s510.vmdk"
RW 4194304 SPARSE "test-s511.vmdk"
RW 4194304 SPARSE "test-s512.vmdk"

# The Disk Data Base
#DDB

ddb.virtualHWVersion = "4"
ddb.geometry.cylinders = "2130440"
ddb.geometry.heads = "16"
ddb.geometry.sectors = "63"
ddb.adapterType = "ide"

Base on above, this issue has been fixed correctly, move to VERIFIED status, please correct me if any mistake.

Best Regards,
sluo
Comment 13 errata-xmlrpc 2014-10-14 06:58:22 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-2014-1490.html
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