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Description
Stable guest ABI doesn't check ram value of video
Version:
libvirt-1.1.1-13.el7.x86_64
How reproducible:
100%
Steps to Reproduce:
1.Prepare a guest,set the Display as "Spice" and Video as "QXL".
2.Boot the guest.
3.Use virsh dumpxml to get the xml of the guest.
# virsh dumpxml mig > mig.xml
4.Change the ram value of video:eg:change ram from '65536' to '65535'
change xml from:
<model type='qxl' ram='65536' vram='65536' heads='1'/>
<alias name='video0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
</video>
to:
<model type='qxl' ram='65535' vram='65536' heads='1'/>
<alias name='video0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
</video>
5.Do migrate,no error shows.
# virsh migrate --live mig qemu+ssh://$ip/system --xml mig.xml
6.If I change vram value from xml,there is error.
# virsh migrate --live mig qemu+ssh://$ip/system --xml mig.xml
error: unsupported configuration: Target video card vram 65535 does not match source 65536
Actual results：
As step 5 describes.
Expected results:
Error shows when ram value in xml is set different with guest.
eg:error: unsupported configuration: Target video card ram 65535 does not match source 65536
Tested PASS with:
libvirt-1.1.1-14.el7.x86_64
If I Change the ram value of video:eg:change ram from '65536' to '65535'
change xml from:
<model type='qxl' ram='65536' vram='65536' heads='1'/>
<alias name='video0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
</video>
to:
<model type='qxl' ram='65535' vram='65536' heads='1'/>
<alias name='video0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
</video>
Error will show when migrating with the updated xml file:
# virsh migrate --live mig qemu+ssh://10.66.5.7/system --xml mig.xml
error: unsupported configuration: Target video card ram 65535 does not match source 65536
Refer to the above comments,move the bug to VERIFIED.
This request was resolved in Red Hat Enterprise Linux 7.0.
Contact your manager or support representative in case you have further questions about the request.
Description Stable guest ABI doesn't check ram value of video Version: libvirt-1.1.1-13.el7.x86_64 How reproducible: 100% Steps to Reproduce: 1.Prepare a guest,set the Display as "Spice" and Video as "QXL". 2.Boot the guest. 3.Use virsh dumpxml to get the xml of the guest. # virsh dumpxml mig > mig.xml 4.Change the ram value of video:eg:change ram from '65536' to '65535' change xml from: <model type='qxl' ram='65536' vram='65536' heads='1'/> <alias name='video0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </video> to: <model type='qxl' ram='65535' vram='65536' heads='1'/> <alias name='video0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </video> 5.Do migrate,no error shows. # virsh migrate --live mig qemu+ssh://$ip/system --xml mig.xml 6.If I change vram value from xml,there is error. # virsh migrate --live mig qemu+ssh://$ip/system --xml mig.xml error: unsupported configuration: Target video card vram 65535 does not match source 65536 Actual results： As step 5 describes. Expected results: Error shows when ram value in xml is set different with guest. eg:error: unsupported configuration: Target video card ram 65535 does not match source 65536