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xen-users
Re: [Xen-users] Zombie domU
Ian Pratt schrieb:
- snip -
What version of Xen is this? Do you know what you did to kill the
domain?
In general, zombie domains aren't too much to worry about from a user
point of view. They typically don't really consume more than a few KB of
memory (despite being listed as holding their full size on 'xm list').
However, they're an indication that something has gone wrong (usually in
the tools) and Xen isn't prepared to destory them completely as it
thinks some resources are still in use. It's good to report such issues
wo we can fix them.
I would like to look somewhat deeper into that, too. I have several
similar machines (IBM x330) with identical setup (xen 2.0.7), just
different number of domUs. They all run fine, but one of them every few
days does not.
One of the domUs is not reachable any more then (though shown by xm
list), cannot be destroyed (still shown by xm list with 0 used memory),
and if I try to reboot the physical machine the shutdown process hangs
after shutdown of the network (that usually means driving to the
colocation center, urgh).
The only way I can make reboot work then is
a) destroy the domU that is not working
b) run "/etc/init.d/xend restart" which claims not to work
c) then reboot the machine.
There is one difference to the other machines: they all run HIGHMEM4G=y
kernels, but the one having problems has only 1 GB of physical memory.
Can that be the source of the problems?
Thanks,
Dirk
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