Re: [Xen-users] Network stops working after 12th domU is started

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Fri, Feb 19, 2010 at 03:45:25PM +0100, Michele wrote:
> Hi,
> 
> We're not sure what's causing it, but there seems to be some kind of
> limit with our dom0: every time we have 11 domUs running and start a
> new one, the network stops working for all domUs.
> Basically, the dom0 works as usual and we can both ping it and ssh
> into it, but all domU stop responding to pings and the only way to
> access them is through the console from the dom0. If we then stop one
> domU (doesn't matter which one) everything is back to work as usual
> immediately after the domU has been stopped.
> 
> We've got plenty of RAM and disk, so that's not a problem. Could it be
> that network-bridge only supports a given number of guests for each
> physical ethernet card? otherwise, what could it be?
> 
> Thanks a lot for your help.
> 

What does "xm info" say about free memory when you have 11 guests running,
before you start the 12th guest? 

Do you have any errors in the dom0 "dmesg" ? How about "xm log"? 
Is "brctl show" output correct? 

-- Pasi


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