Re: kvm linux guest hanging for minutes at a time

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On August 9, 2011, Avi Kivity wrote:
> On 08/09/2011 05:46 PM, Thomas Fjellstrom wrote:
> > >  >  Does it matter that I have several vms running? Is there a way to
> > >  >  limit it to tracing the single kvm process that's been locking up?
> > >  
> > >  You can use "trace-cmd record -F ... qemu ..." but that misses out on
> > >  events the run from workqueues.
> > >  
> > >  Best to stop those other guests.
> > 
> > I would prefer not to do that, those other guests are my web server, mail
> > server, and database server. I have no idea if I can reproduce the
> > problem in a reasonable time frame.
> 
> Okay then, please use -F.
> 
> Note, please be sure to note the time the guest hangs so we can
> correlate it with the trace.

Probably a stupid question, but what is the full syntax for the command? I 
only have kvm processes, and qemu is set to give the threads qemu:instance-
name type names.

-- 
Thomas Fjellstrom
thomas@xxxxxxxxxxxxx
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