Bug 740758

Summary: RHEL5u7 guest can't recognize hotplugged interface
Product: Red Hat Enterprise Linux 6 Reporter: Vivian Bian <vbian>
Component: qemu-kvmAssignee: Virtualization Maintenance <virt-maint>
Status: CLOSED NOTABUG QA Contact: Virtualization Bugs <virt-bugs>
Severity: high Docs Contact:
Priority: medium    
Version: 6.2CC: acathrow, dyuan, mkenneth, mprivozn, mzhan, rwu, virt-maint
Target Milestone: rc   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-09-23 09:35:26 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description Vivian Bian 2011-09-23 09:22:31 UTC
Description of problem:


Version-Release number of selected component (if applicable):
libvirt-0.9.4-12.el6.x86_64
qemu-kvm-0.12.1.2-2.192.el6.x86_64
kernel-2.6.32-197.el6.x86_64


How reproducible:
always

Steps to Reproduce:
1. install guest with tree  RHEL5.7-Server-20110622.0
2. start the guest
3. try to attach interface to guest with following two commands
   a.   # virsh attach-interface rhel57-new network default vnet0 --model e1000
   b.   # virsh attach-device rhel57-new interface.xml
        # cat interface.xml
        <interface type='bridge'>
           <source bridge='virbr0'/>
           <model type='virtio'/>
        </interface>

Actual results:
both of the two commands got success to attach the interface to rhel5u7 guest , but without reboot the guest , guest won't recognize the interface automatically
Besides, after shutdown guest, attached device xml won't be removed from guest xml file. 

Expected results:
guest can recognize attached interface automatically without reboot .

Additional info:
rhel6 guest won't encounter this problem . 
And for rhel5u7 guest, attach virtio disk device doesn't work as well .

Comment 2 Vivian Bian 2011-09-23 09:35:26 UTC
load acpiphp in the RHEL5u7 guest will resolve the problem . Since it is expected , close this bug as NOTABUG