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Re: Migration - Xen 4.3
On Sun, 18 Jan 2015, Brian Marcotte wrote:
Has anyone tried Migration recently?
I'm getting this on Xen 4.3, Linux dom0:
# xl migrate mydomU otherdom0host
libxl: error: libxl_dom.c:1063:libxl__domain_suspend_common_callback: \
guest didn't acknowledge suspend, cancelling request
On the domU (netbsd) console, I see this:
xenbus_shutdown_handler: xenbus_rm 13
Flushing disk caches: 21 done
The domain is completely locked up and doesn't even respond to "+++++".
It is similar with "xm migrate".
I have never got migration to succeed, nor suspend/resume (which is
fundamentally the same operation). Sometimes suspend appears to work, but
The usual symptoms for me are that the domain just continues regardless
(i.e. it ignores the suspend request) rather than it locks. However, from
a dom0 point of view, it waits for confirmation of suspension and so
blocks any further operations on it.
I understand that the problem is reasonably well understood by the
relevant developers, but that debugging is hard.
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