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Bug 954195 - RHEL machines <=6.4 should not use mixemu
Summary: RHEL machines <=6.4 should not use mixemu
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: qemu-kvm
Version: 7.0
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Bandan Das
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On: 983991
Blocks: 841379 895959 983997 984008 984010 987757
TreeView+ depends on / blocked
 
Reported: 2013-04-21 19:56 UTC by Marc-Andre Lureau
Modified: 2014-06-18 12:23 UTC (History)
8 users (show)

Fixed In Version: qemu-kvm-1.5.3-10.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-06-13 12:55:57 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Marc-Andre Lureau 2013-04-21 19:56:42 UTC 
RHEL >= 6.5 will have mixemu enabled by default. The HDA Audio device will be different in this case, so we need to handle new hardware machine versionning.
Comment 4 Paolo Bonzini 2013-05-14 12:23:59 UTC 
Leaving this bug open, and marked as blocking bug 895959, because this is more complicated than just adding a global property.

See RHEL6 series at message-id
<1365163192-17207-1-git-send-email-marcandre.lureau>.
Comment 5 Miroslav Rezanina 2013-10-17 10:01:59 UTC 
Fix included in qemu-kvm-1.5.3-10.el7
Comment 7 Qunfang Zhang 2013-12-30 08:55:11 UTC 
Reproduced this bug on qemu-kvm-1.5.3-9.el7.x86_64 and verified pass on qemu-kvm-1.5.3-31.el7.x86_64.

===================
Reproduction:

1. Boot up a win7-32 guest with sound device and spice with -M rhel6.4.0 on rhel7.0 host.

/usr/libexec/qemu-kvm ... -M rhel6.4.0 -spice port=5930,disable-ticketing -vga qxl -device intel-hda,id=sound0,bus=pci.0,addr=0x5 -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 

2. Play some music inside guest. 

3. Click the "mute/unmute" button in the right bottom of guest desktop.

Result: We could mute and unmute the sould within guest even the machine type is "-M rhel6.4.0".

===================
Verification:

Scenario 1:

(1) Boot up the win7 guest with  with sound device and spice with *-M rhel6.4.0* on rhel7.0 host.

(2) Play some music inside guest. 

(3) Click the "mute/unmute" button in the right bottom of guest desktop.

Result: The mute button does not work, it will keep the default. 

Scenario 2:

(1) Boot up the win7 guest with  with sound device and spice with *-M rhel6.5.0* on rhel7.0 host.

(2) Play some music inside guest. 

(3) Click the "mute/unmute" button in the right bottom of guest desktop.

Result:
The mute button works, we could mute/unmute the sound.

Scenarios 3:

(1) Boot up the win7 guest with  with sound device and spice with *-M pc* or *-M q35* on rhel7.0 host. (I tried both the cases)

(2) Play some music inside guest. 

(3) Click the "mute/unmute" button in the right bottom of guest desktop.

Result:
The mute button works, we could mute/unmute the sound.

Scenario 4:

Migrate guest from rhel6.5 host -> rhel7.0 host with 
-M rhel6.4.0 and sound device, connect guest with spice.

Result:
Migration finish successfully, mute/unmute button does not work always. 

Scenario 5:

Migrate guest from rhel6.5 host -> rhel7.0 host with 
-M rhel6.5.0 and sound device, connect guest with spice.

Result: 
Migration finish successfully, mute/unmute button works. But I hit a new bug 1047265 in this scenario. 

================

Based on above, I will change the status to verified. As the machine types loer than rhel6.4.0 does not use mixemu now. We could use bug 1047265 to track the new issue.
Comment 8 Ludek Smid 2014-06-13 12:55:57 UTC 
This request was resolved in Red Hat Enterprise Linux 7.0.

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