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Bug 1256583

Summary:	Win10 guest can't get ip address from dhcpserver when add mrg_rxbuf=off for virtio-net-pci
Product:	Red Hat Enterprise Linux 7	Reporter:	weliao <weliao>
Component:	virtio-win	Assignee:	Yvugenfi <yvugenfi>
virtio-win sub component:	virtio-win-prewhql	QA Contact:	Virtualization Bugs <virt-bugs>
Status:	CLOSED ERRATA	Docs Contact:
Severity:	high
Priority:	high	CC:	juzhang, lijin, lmiksik, michen, nobody, vrozenfe, xfu
Version:	7.2	Keywords:	Regression
Target Milestone:	rc
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	NO_DOCS	Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-11-04 08:49:02 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 weliao 2015-08-25 04:07:23 UTC

Description of problem:
Use virtio-win : virtio-win-prewhql-0.1-109,when add mrg_rxbuf=off for virtio-net-pci,can't get ip address from dhcpserver, 105 no this issue 

Version-Release number of selected component (if applicable):
3.10.0-305.el7.x86_64
qemu-kvm-1.5.3-101.el7.x86_64
virtio-win-prewhql-0.1-109

How reproducible:
100%

Steps to Reproduce:
1.Boot win10 guest whit mrg_rxbuf=off
-netdev tap,id=hostnet0,vhost=on,vhostforce=off \
-device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:83:66:77:88:66,bus=pci.0,addr=0x3,status=on,mrg_rxbuf=off


Actual results:
 can't get ip address from dhcpserver

Expected results:
 can get ip address from dhcpserver

Additional info:
/usr/libexec/qemu-kvm -name win10qcow2 -M pc-i440fx-rhel7.0.0 -cpu SandyBridge -m 4096 -realtime mlock=off -smp 4,sockets=1,cores=4 \
-device virtio-scsi-pci,id=scsi2,indirect_desc=off,event_idx=off,bus=pci.0 -drive file=/mnt/win10.qcow2.1,if=none,id=drive-scsi-disk0,format=qcow2 \
-device scsi-hd,bus=scsi2.0,drive=drive-scsi-disk0,id=scsi-disk0 \
-boot menu=on \
-netdev tap,id=hostnet0,vhost=on,vhostforce=off \
-device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:83:66:77:88:66,bus=pci.0,addr=0x3,status=on,mrg_rxbuf=off \
-device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,vgamem_mb=16,bus=pci.0,addr=0x5 \
-spice port=6800,disable-ticketing, -monitor stdio -qmp tcp:0:4444,server,nowait

Comment 5 wehao 2016-01-06 07:45:38 UTC

Reproduced this issue on virtio-win-prewhql-0.1-109 version
Verified this issue on virtio-win-prewhql-0.1-112 version

Steps same as comment#0

Actual Results:
on virtio-win-prewhql-0.1-109 (un-fixed) version,can't get ip address from dhcpserver
on virtio-win-prewhql-0.1-112 fix version, can get ip address from dhcpserver

Base on above, this issue has been fixed already.

Comment 6 lijin 2016-01-06 08:21:50 UTC

change status to verified according to comment#5

Comment 9 errata-xmlrpc 2016-11-04 08:49:02 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/RHBA-2016-2609.html