Re: KVM Migration fails

[jd <jdsw2002@yahoo.com>]

Hi Chris, 
 
Thanks for the response.

It errors out bit after the command is given.. so I guess... it must have transferred some pages/bits.

What kind of information do you want me to collect ?
Is there a way to turn on logging..debugging for kvm process ?

Will also try tap option.

thanks.
/Jd

--- On Wed, 9/24/08, Chris Lalancette <clalance@redhat.com> wrote:

> From: Chris Lalancette <clalance@redhat.com>
> Subject: Re: KVM Migration fails
> To: jdsw2002@yahoo.com
> Cc: "KVM List" <kvm@vger.kernel.org>
> Date: Wednesday, September 24, 2008, 10:56 PM
> jd wrote:
> > Hi I have a setup using shared nfs disks. When
> migration is attempted, it
> > fails... any ideas on how to debug this..?
> > 
> > /Jd
> > 
> > Details =======
> > 
> > migration: write failed (Connection reset by peer)^M
> Migration failed! ret=0
> > error=9
> 
> Not a lot of detail here, but when does it fail during the
> process?
> Immediately?  After transferring some of the image?  Right
> at the end?
> Connection reset by peer sort of sounds like there is a
> firewall or something in
> the way, although if it transfers some data before
> crashing, then it's probably
> something else.  The only other thing I can think of based
> on your command-line
> below is something to do with your -net options; I've
> only successfully migrated
> with -net tap before, I've never tried -net user.
> 
> Chris Lalancette
> 
> > 
> > Source : KVM-73, Cent OS 5.2, 64 bit.
> > 
> > qemu-system-x86_64 -net
> nic,vlan=0,macaddr=00:16:3e:16:f4:f0 -net user,vlan=0
> > -hda /mnt/nfs/vmdisks/XPSP2-KVM.disk.xm -boot c -m
> 1024 -no-acpi  -vnc :22
> > -name XPSP2-KVM -smp 2 -monitor
> > unix:/var/run/kvm/monitors/XPSP2-KVM,server,nowait
> -pidfile
> > /var/run/kvm/pids/XPSP2-KVM -daemonize
> > 
> > 
> > 
> > Dest   : KVM-70, Fedora 8, 64bit
> > 
> > qemu-system-x86_64 -net
> nic,vlan=0,macaddr=00:16:3e:16:f4:f0 -net user,vlan=0
> > -hda /mnt/nfs/vmdisks/XPSP2-KVM.disk.xm -boot c -m
> 1024 -no-acpi  -vnc :23
> > -incoming tcp://0:8002 -name XPSP2-KVM -smp 2 -monitor
> > unix:/var/run/kvm/monitors/XPSP2-KVM,server,nowait
> -pidfile
> > /var/run/kvm/pids/XPSP2-KVM -daemonize
> --
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