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Bug 1300626

Summary: e1000/rtl8139: qemu mac address can not be changed via set the hardware address in guest
Product: Red Hat Enterprise Linux 6 Reporter: weliao <weliao>
Component: qemu-kvmAssignee: Vlad Yasevich <vyasevic>
Status: CLOSED ERRATA QA Contact: Virtualization Bugs <virt-bugs>
Severity: medium Docs Contact:
Priority: medium    
Version: 6.8CC: acathrow, ailan, akong, hhuang, juzhang, michen, mkenneth, qiguo, rbalakri, rhod, virt-bugs, virt-maint, xfu
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: qemu-kvm-0.12.1.2-2.498.el6 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: 922589 Environment:
Last Closed: 2017-03-21 09:36:51 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:
Bug Depends On: 922589    
Bug Blocks: 1359965    

Comment 1 weliao 2016-01-21 10:12:29 UTC 
retested on rhel6.7 host version:

2.6.32-573.el6.x86_64
qemu-kvm-0.12.1.2-2.479.el6.x86_64


also had this issue, so this not a regression bug.
Comment 3 weliao 2016-01-22 03:00:17 UTC 
retested rhel6.7.Z host version:
2.6.32-573.19.1.el6.x86_64
qemu-kvm-0.12.1.2-2.479.el6_7.3.x86_64

also had this issue.
Comment 4 Vlad Yasevich 2016-03-07 13:25:04 UTC 
Moving to 6.9.  Not critical.
Comment 5 Yash Mankad 2016-12-14 19:13:41 UTC 
Fix included in qemu-kvm-0.12.1.2-2.498.el6
Comment 7 weliao 2016-12-19 03:32:34 UTC 
Reproduced this bug in following versions:
Host:
    2.6.32-672.el6.x86_64
    qemu-kvm-0.12.1.2-2.496.el6.x86_64
Guest:
    2.6.32-671.el6.x86_64

Steps to Reproduce:
1.Boot a guest with(e1000/rtl8139):
-device e1000,mac=9a:60:61:62:63:64,id=idpBvu3g,netdev=idTjoQTn,bus=pci.0,addr=05 \
-netdev tap,id=idTjoQTn

2.Change mac address in guest
#ip link set eth0 addr 9a:60:61:62:63:68

3.Check the mac address in guest and qemu monitor
Before Mac change:
(qemu) info network 
Devices not on any VLAN:
  idTjoQTn: ifname=tap0,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown peer=idpBvu3g
  idpBvu3g: model=e1000,macaddr=9a:60:61:62:63:64 peer=idTjoQTn
After Mac change:
(qemu) info network 
Devices not on any VLAN:
  idTjoQTn: ifname=tap0,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown peer=idpBvu3g
  idpBvu3g: model=e1000,macaddr=9a:60:61:62:63:64 peer=idTjoQTn

The same result with rtl8139 NIC.

-----------------------------------------------------------------------------
Verify this bug in following versions:
Host:
    2.6.32-672.el6.x86_64
    qemu-kvm-0.12.1.2-2.498.el6.x86_64
Guest:
    2.6.32-671.el6.x86_64

The same test steps:
Step3 results:
Before Mac change:
(qemu) info network 
Devices not on any VLAN:
  idTjoQTn: ifname=tap0,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown peer=idpBvu3g
  idpBvu3g: model=e1000,macaddr=9a:60:61:62:63:64 peer=idTjoQTn
After Mac change:
(qemu) info network 
Devices not on any VLAN:
  idTjoQTn: ifname=tap0,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown peer=idpBvu3g
  idpBvu3g: model=e1000,macaddr=9a:60:61:62:63:68 peer=idTjoQTn

Mac address can be change in qemu monitor, so this bug fixed well.
Comment 9 errata-xmlrpc 2017-03-21 09:36:51 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-2017-0621.html