Bug 886641

Summary:	Guest networking is broken
Product:	Red Hat Enterprise Linux 6	Reporter:	John Poelstra <poelstra>
Component:	virt-manager	Assignee:	Laine Stump <laine>
Status:	CLOSED DUPLICATE	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	urgent	Docs Contact:
Priority:	unspecified
Version:	6.3	CC:	dallan, dyasny, thozza
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-12-13 14:51:15 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 John Poelstra 2012-12-12 18:15:07 UTC

Description of problem:
I'm running the latest RHEL 6.4 beta and beyond packages.  Guest networking stopped working and I cannot determine why.


Version-Release number of selected component (if applicable):
$ rpm -qa | grep virt
python-virtinst-0.600.0-13.el6.noarch
virtio-win-1.5.3-1.el6_3.noarch
libvirt-python-0.10.2-11.el6.x86_64
libvirt-client-0.10.2-11.el6.x86_64
libvirt-0.10.2-11.el6.x86_64
virt-manager-0.9.0-18.el6.x86_64
virt-what-1.11-1.2.el6.x86_64
virt-viewer-0.5.2-17.el6.x86_64


How reproducible:
100%


Steps to Reproduce:
1. Start a guest
2. Log into guest
3. Watch wired networking fail with NetworkManager
  
Actual results:


Expected results:


Additional info:

Comment 1 John Poelstra 2012-12-12 18:16:32 UTC

kvm and kernels:

qemu-kvm-0.12.1.2-2.342.el6.x86_64
kernel-2.6.32-347.el6.x86_64

Comment 2 Dave Allan 2012-12-12 18:22:44 UTC

Laine, this looks like BZ 884957 to me, what do you think?

Comment 3 Laine Stump 2012-12-12 18:40:49 UTC

Very likely.

If it starts working again after downgrading to dnsmasq-2.48-9.el6.x86_64 (and restarting all the networks/guests), then definitely that's the problem.

Comment 4 Dave Allan 2012-12-12 19:25:24 UTC

John, does that fix it for you?

Comment 5 John Poelstra 2012-12-12 19:51:53 UTC

I'm running 2.48-10.el6.  

Can you point me to where I can find 2.48-9.el6 or just send it to me?

Comment 6 Laine Stump 2012-12-13 00:26:13 UTC

Try running "yum downgrade dnsmasq" and see what that gives you.

Comment 8 John Poelstra 2012-12-13 00:34:25 UTC

(In reply to comment #6)
> Try running "yum downgrade dnsmasq" and see what that gives you.

Bingo.  Downgraded to dnsmasq-2.48-6.el6.x86_64.rpm and networking works again!

Comment 9 Dave Allan 2012-12-13 14:51:15 UTC

Ok, closing as a duplicate of bug 884957.

*** This bug has been marked as a duplicate of bug 884957 ***