[Xen-users] Dom0 cause for boot failure

[Michael Morris <mike@xxxxxxxxxx>]

I had been running Xen with several virtual machines for a little over a 
month without any problems.  One day my machine went down and wouldn't 
come back up. I was running Xen 3.0.2 on Debian Etch with AMD64 
architecture and a kernel 2.6.16.  I was able to get the machine up and 
running again by installing a new Xen package, and a new Xen kernel of 
version 2.6.17.
My first main concern is what caused my machine to go down in the first 
place.  I have searched through the logs without finding anything 
useful.  Logs just stopped coming in when the machine went down with 
nothing to indicate what had caused my machine to crash and then be 
unable to boot up.  If anybody has any ideas as to what may have gone 
wrong please let me know.  Please also ask any questions that may help 
provide an answer.
My second concern is that once I got my machine to boot up, networking 
didn't work on any of the DomU's.  I had to manually add the xenbr0 
interface in Dom0, where before it came up when xend started.  
Everything seems to be working well in my DomU's, except that I get 
complaints about having not veth0 interface in my Dom0 logs.  I would 
appreciate any insight into why I had to manually add my xenbr0, and the 
importance of veth0.
Thanks for your help,
Mike Morris
mike@xxxxxxxxxx

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