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Re: [Xen-users] 199% CPU in DomU


I have a similar problem with one of our DomUs. Just to narrow chances, is there nagios running on the 199% CPU-DomU?

In my particular case, we narrowed down the processes to create that situation to the nagios-daemon. While this is running, the DomU happens to freeze - there is no connection possible neither ssh nor console.

I'm hoping, anybody got a solution or some hints, what we can do.

Thanks in advance,


--On 15. September 2006 16:21:21 +0200 Felix Jaussi <fj@xxxxxxxxxxxxxxxxxxxxxxx> wrote:


We have a silly Problem, we are using xen on 6 machines. Everything
works beautiful, but one DomU sometimes takes 199 percent of CPU an
hangs (says xm top). Only an xm destroy and recreate can "reaktivate" it
again. Normally it takes only around 25-40 percent. Sometimes it happens
1 time per week but sometimes every day. There is no more load at
hangtime than normal and xen writes nothing to the logfiles (DomU/Dom0).

We already changed the Dom0 System (we have an identical machine) and
the Kernel is the same as on the other Systems and was built without USB

Have anybody an idea where I have to search for a solution of this
Problem? Or anybody who already solved it? :-)

Thanks for Help!


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