Bug 988624 - [virtio-win][netkvm]specific parameters in the old netkvme driver still exist after upgrade netkvm driver
[virtio-win][netkvm]specific parameters in the old netkvme driver still exist...
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: virtio-win (Show other bugs)
Unspecified Unspecified
high Severity medium
: rc
: ---
Assigned To: Yan Vugenfirer
Virtualization Bugs
Depends On:
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Reported: 2013-07-25 22:20 EDT by lijin
Modified: 2013-12-06 03:07 EST (History)
4 users (show)

See Also:
Fixed In Version:
Doc Type: Known Issue
Doc Text:
When upgrading the NetKVM driver through the Windows Device Manager, the old registry values are not removed. As a consequence, for example, non-existent parameters may be available.
Story Points: ---
Clone Of:
Last Closed: 2013-07-28 10:08:33 EDT
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description lijin 2013-07-25 22:20:03 EDT
Description of problem:
With build65,netkvm has only one "TestOnly" parameters:"TestOnly.RXThrottle",after downgrade to build 54,netkvm adapter has sevral "TestOnly" parameters,such as:TestOnly.DelayConnect,TestOnly.InterruptRecovery,TestOnly.Promiscuous,etc.
Then upgrade netkvm back to build 65,those "TestOnly" parameters still here,they should be removed.

Version-Release number of selected component (if applicable):
Red Hat Enterprise Linux Server release 7.0 Beta (Maipo)

How reproducible:

Steps to Reproduce:
1.boot guest with netkvm:
/usr/libexec/qemu-kvm  \
-drive file=win2k8R2.qcow2,if=none,cache=none,media=disk,format=qcow2,id=drive-scsi-0 \
-device ide-drive,drive=drive-scsi-0,id=blk0,bootindex=0 \
-global PIIX4_PM.disable_s3=0 -global PIIX4_PM.disable_s4=0 \
-usb -device usb-tablet \
-monitor stdio \
-chardev socket,id=aaaa,path=/tmp/tttt,server,nowait \
-mon chardev=aaaa,mode=readline \
-spice port=5900,disable-ticketing -vga qxl \
-chardev file,path=/root/console.log,id=serial1 \
-device isa-serial,chardev=serial1,id=s1 \
-cpu 'Penryn' -M pc \
-smp 4,cores=2,threads=1,sockets=2 -m 6G \
-enable-kvm \
-netdev tap,sndbuf=0,id=hostnet1,vhost=on,script=/etc/qemu-ifup,downscript=no -device virtio-net-pci,netdev=hostnet1,id=net1,mac=00:52:12:16:54:46,bus=pci.0,addr=0x7 \

2.in guest,device manager--->Redhat Virtio Ethernet Adapter--->Advanced,check the parameters
3.downgrade netkvm driver to build 54
device manager--->Redhat Virtio Ethernet Adapter--->Advanced,,check the parameters
4.upgrade netkvm driver to build 65
device manager--->Redhat Virtio Ethernet Adapter--->Advanced,,check the parameters

Actual results:
after step4,parameters specific in build 54 still exist,but acctually those parameters have been removed in build65.

Expected results:
after upgrade to build 65,those parameter should not shown in netkvm

Additional info:
in rhel6 host,still hit this issue.
Comment 2 Yan Vugenfirer 2013-07-28 10:08:33 EDT

This is MS bug. If using upgrade through device manager the old registry values are not removed.

This bug should be documented.

Best regards,

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