[Users] 3 IDE disks : Duplicate ID error

[Dan Kenigsberg]

On Fri, Nov 29, 2013 at 01:16:17PM +0100, Nicolas Ecarnot wrote:
> Le 29/11/2013 11:44, Dan Kenigsberg a écrit :
> >On Fri, Nov 29, 2013 at 11:13:03AM +0100, Nicolas Ecarnot wrote:
> >>Hi,
> >>
> >>Strarting from a VM with two IDE disks, I'm trying to add a third IDE disk.
> >>
> >>I get this Duplicate ID error :
> >>
> >>VM serv-bd-dev1 is down. Exit message: internal error process exited
> >>while connecting to monitor: qemu-kvm: -drive file=/rhev/data-center/5849b030-626e-47cb-ad90-3ce782d831b3/1429ffe2-4137-416c-bb38-63fd73f4bcc1/images/f9ca88d8-e29f-4b11-9aae-b9330b5f8cdf/ed91505a-a219-42af-9915-e5ffc79918f9,if=none,id=drive-ide0-1-1,format=qcow2,serial=f9ca88d8-e29f-4b11-9aae-b9330b5f8cdf,cache=none,werror=stop,rerror=stop,aio=native:
> >>Duplicate ID 'drive-ide0-1-1' for drive .
> >>
> >>When disabling the second one and starting only with disk 0 et the
> >>new one (so start with 2 disks), it is booting well.
> >>
> >>Is it by design?
> >
> >No. It sounds like a collision between the address of your third ide
> >disk and the ide cdrom. Would you post vdsm.log from vmCreate command
> >until the reported error message? It would let us understand if the bug
> >is in Vdsm or Engine.
> >
> >Dan.
> >
> 
> Do you mean the xml that one can see in the vdsm.log?

Actually, I've meant everything: from Engine's parameters to the
vmCreate command, down to the error from libvirt. The domxml blow
suggests that the error might be even further below, since I do not see
an address collision here.

>  <disk device="cdrom" snapshot="no" type="file">
>          <address bus="1" controller="0" target="0" type="drive" unit="0"/>
>          <target bus="ide" dev="hdc"/>
>  </disk>
>  <disk device="disk" snapshot="no" type="block">
>          <address bus="0" controller="0" target="0" type="drive" unit="0"/>
>          <target bus="ide" dev="hda"/>
>  </disk>
>  <disk device="disk" snapshot="no" type="block">
>          <address bus="1" controller="0" target="0" type="drive" unit="1"/>
>          <target bus="ide" dev="hdb"/>
>  </disk>
>  <disk device="disk" snapshot="no" type="block">
>          <address bus="0" controller="0" target="0" type="drive" unit="1"/>
>          <target bus="ide" dev="hdd"/>
>  </disk>

Could you provide the vmCreate line from vdsm.log, and also the part of
libvirtd.log since that domxml gets in until the error is spewed out?