Hello,

Periodically, while migrating some virtual machines I experience the
following errors:

qemu: warning: error while loading state for instance 0x0 of device 'ram'
qemu: warning: error while loading state section id 1

>From reading Qemu mailing lists I understood that these errors can happen
for various reasons. I tried using different Qemu versions from 1.0 to the
trunk. And yes, I specify the same CPU, RAM, disk and ballooning info from
both sides.

I applied the patch written by Alexander Graf
https://lists.gnu.org/archive/html/qemu-devel/2013-10/msg02950.html to
understand the process better. But it seems to work only for the exec
migration method:

(qemu) migrate "exec:cat > mig"

Is it possible to debug Qemu TCP migration? For example, I am starting
migration to remote host as:

(qemu) migrate -b tcp:192.168.1.1:4444

My goal is to have a clear picture in understanding the migration failures.

I would appreciate any advice. Thank you.

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