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Bug 1288690 - Error message misleads users when 2 or more IDE controllers are configured
Summary: Error message misleads users when 2 or more IDE controllers are configured
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: libvirt
Version: 7.2
Hardware: x86_64
OS: Linux
low
low
Target Milestone: rc
: ---
Assignee: Pavel Hrdina
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-12-05 02:30 UTC by Yang Yang
Modified: 2016-11-03 18:34 UTC (History)
4 users (show)

Fixed In Version: libvirt-1.3.1-1.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2016-11-03 18:34:55 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2016:2577 0 normal SHIPPED_LIVE Moderate: libvirt security, bug fix, and enhancement update 2016-11-03 12:07:06 UTC

Description Yang Yang 2015-12-05 02:30:34 UTC 
Description of problem:
When 2 or more IDE controllers are configured, the error message does not make sense.
error: unsupported configuration: Only a single IDE controller is unsupported for this machine type

Version-Release number of selected component (if applicable):
libvirt-1.2.17-13.el7_2.2.x86_64

How reproducible:
100%

Steps to Reproduce:
1. start a domain with 2 IDE controllers
#virsh dumpxml vm1 | grep ide -a3
<controller type='ide' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
    </controller>
    <controller type='ide' index='1'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/>
    </controller>

#virsh start vm1
error: Failed to start domain vm1
error: unsupported configuration: Only a single IDE controller is unsupported for this machine type

2.
3.

Actual results:


Expected results:
Error message should like "Only a single IDE controller is supported..."

Additional info:
Comment 1 Pavel Hrdina 2015-12-05 12:25:12 UTC 
Upstream commit:

commit e4ab3b5d38bfbaef3cfe9da07ffafca0904e69da
Author: Guido Günther <agx>
Date:   Sat Nov 21 19:58:56 2015 +0100

    qemu: handle more machines with a single builtin IDE controller
    
    like I440FX by moving the condition into qemuDomainMachineHasBuiltinIDE
    and adding more machines.
    
    Reference: http://bugs.debian.org/805189
Comment 4 Yang Yang 2016-02-24 03:16:47 UTC 
Verified on libvirt-1.3.1-1.el7.x86_64

Steps
start guest with I440FX machine type and 2 ide controller
<os>
    <type arch='x86_64' machine='pc-i440fx-rhel7.2.0'>hvm</type>
  </os>
<controller type='ide' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
    </controller>
    <controller type='ide' index='1'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
    </controller>

# virsh start vm1
error: Failed to start domain vm1
error: unsupported configuration: Only a single IDE controller is supported for this machine type

Also tested with sun4u, malta, g3beige machine type, passed
1. sun4u machine type and 2 IDE controller
<os>
    <type arch='x86_64' machine='pc-sun4u-rhel7.2.0'>hvm</type>
  </os>
<controller type='ide' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
    </controller>
    <controller type='ide' index='1'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
    </controller>

# virsh start vm1
error: Failed to start domain vm1
error: unsupported configuration: Only a single IDE controller is supported for this machine type

2. malta machine type and 2 IDE controller
<os>
<type arch='x86_64' machine='pc-malta-rhel7.2.0'>hvm</type>
</os>
<controller type='ide' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
    </controller>
    <controller type='ide' index='1'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
    </controller>

# virsh start vm1
error: Failed to start domain vm1
error: unsupported configuration: Only a single IDE controller is supported for this machine type

3. g3beige machine type and 2 IDE controller
<os>
    <type arch='x86_64' machine='pc-g3beige-rhel7.2.0'>hvm</type>
  </os>
 <controller type='ide' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
    </controller>
    <controller type='ide' index='1'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
    </controller>

# virsh start vm1
error: Failed to start domain vm1
error: unsupported configuration: Only a single IDE controller is supported for this machine type
Comment 6 errata-xmlrpc 2016-11-03 18:34:55 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/RHSA-2016-2577.html
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