Bug 710913 - [vdsm] in case virtIO & IDE are used, VDSM builds XML with both disks as 'hda'
Summary: [vdsm] in case virtIO & IDE are used, VDSM builds XML with both disks as 'hda'
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: vdsm
Version: 6.2
Hardware: x86_64
OS: Linux
unspecified
medium
Target Milestone: rc
: ---
Assignee: Federico Simoncelli
QA Contact: Kiril Nesenko
URL:
Whiteboard:
Depends On:
Blocks: 709732
TreeView+ depends on / blocked
 
Reported: 2011-06-05 18:46 UTC by Haim
Modified: 2014-07-11 00:07 UTC (History)
10 users (show)

Fixed In Version: vdsm-4.9-75.el6
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2011-12-06 07:20:29 UTC
Target Upstream Version:

Attachments (Terms of Use)
Add an attachment (proposed patch, testcase, etc.)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHEA-2011:1782 0 normal SHIPPED_LIVE new packages: vdsm 2011-12-06 11:55:51 UTC

Description Haim 2011-06-05 18:46:21 UTC 
Description of problem:

case: 

- VM with 2 disks 
  1) one IDE
  2) one virtIO
- VDSM builds XML with both disks symboled as 'hda'.
- VDSM then reports both disk as 'hda' which causes several problems such as backend doesn't update actual disk size of second disk.


                <disk device="disk" type="file">
                        <source file="/rhev/data-center/7afb7b98-8b71-11e0-8474-00262df77985/60139b36-5583-4510-9ab1-323467cd793d/images/9c44e5d3-b59d-4e63-8cd
0-42434f29e99c/d7c309fa-1cbe-46f6-b2d2-bdba1ceea069"/>
                        <target bus="ide" dev="hda"/>
                        <serial>63-8cd0-42434f29e99c</serial>
                        <driver cache="writeback" error_policy="stop" io="threads" name="qemu" type="raw"/>
                </disk>
                <disk device="disk" type="file">
                        <source file="/rhev/data-center/7afb7b98-8b71-11e0-8474-00262df77985/60139b36-5583-4510-9ab1-323467cd793d/images/ca361874-019a-486e-945
9-c7a81dac5f5e/5f5a865c-80e0-4212-9f29-34c3cc7bbe82"/>
                        <target bus="virtio" dev="hda"/>
                        <serial>6e-9459-c7a81dac5f5e</serial>
                        <driver cache="writeback" error_policy="stop" io="threads" name="qemu" type="raw"/>
                </disk>

repro steps: mentioned above. 
repro rate: 100%
attached logs
Comment 2 Dan Kenigsberg 2011-06-05 20:22:06 UTC 
The problem is not the reuse of "hda" as disk index in libvirt xml, but the fact that that name (instead of disk alias?) is used as key to statistics dictionary.
Comment 6 Federico Simoncelli 2011-06-07 07:45:43 UTC 
commit af385bf9a06777b1c3203d3564c5c2b7453dc145
Author: Federico Simoncelli <fsimonce>
Date:   Mon Jun 6 09:48:02 2011 -0400

    BZ#710913 Use different naming for virtio disks
    
    Change-Id: Icb3464ae98d6e20b73a4f4e9623f366f19c5b167

http://gerrit.usersys/545
Comment 9 Kiril Nesenko 2011-06-20 09:18:54 UTC 
Different names are used for virtio disks (vda,vdb...) 
Checked on vdsm-4.9-75.el6.x86_64.
Verified
ic123
Comment 10 errata-xmlrpc 2011-12-06 07:20:29 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/RHEA-2011-1782.html
Note You need to log in before you can comment on or make changes to this bug.