[Xen-users] My Xen 3.0.2 problems

[Eric Windisch <lists@xxxxxxxxxx>]

I'd like to document some problems that I've run into with Xen 3.0.2.

My dom0 is running Ubuntu 6.0.6 TS (dapper), and I'm using udev.

1. Every time I reboot the server, I must re-run install.sh from the Xen 
tarball, otherwise xend will not start.
2. I must then start xend manually (based on #1).  Only after then 
restarting xend, will 'peth0' be added to xenbr0.  However, that action 
will then bring down all aliases of eth0 (eth0:1, eth0:2, etc), which I 
must then 'ifconfig up'.  To be clear, I start xend and then restart 
xend and bring up and down all my ethernet aliases.
3. After booting and then destroying approximately 25 domains, the 
system will require a reboot before I can add further domains.  The 
error I receive is (approximately) 'cannot create vif'.  If I comment 
the 'vif=' line in the domain's configuration, I then receive 'cannot 
create vbd'.  I suspect if I restart xenstored, this may be fixed, but I 
haven't yet had a chance to test that.
4. I've found that ethernet adapter aliases (eth0:1, etc) do not work 
properly within my DomU.  I've worked around this issue by assigning 
each IP address to "eth0" and then reassigning it to the intended alias 
(eth0:1).  Perhaps I could find a solution to this via /proc or 'arp', 
but I haven't yet researched further than discovering the above 
work-around.  I should note that I on the guest I recognized this 
problem, I am using a Xen 3.0.1 kernel DomU kernel against my Xen 3.0.2 
host.
I thank everyone for their time, especially the developers.  I do hope 
that these problems can be resolved as they have made my deployment 
unnecessarily painful.  The latter two bugs in particular, if I cannot 
determine a solution, will cause my company to temporarily cease further 
Xen deployments (until the bug is fixed)   Regardless, Xen is a great 
product and I'm very happy with the progress it has made.  Cheers!
--
Eric Windisch

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