Re: [PATCH] kernel-shark-2.alpha: Use new tracecmd API to open guest tracing file

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On Fri, 3 Apr 2020 15:26:49 +0300
Tzvetomir Stoyanov <tz.stoyanov@xxxxxxxxx> wrote:

> >
> > Also do we consider a case when we will need to load more than one
> > "primary" stream?  
> 
> In the host - guest tracing, there is no use case with more than one
> primary stream,
> but may be there could be other use cases where more than one primary
> stream will
> be needed ?
> 
> Is it possible to append more than one secondary files, using the
> current KernelShark 2 ?
> I tried appending two files, specifying "-a" option twice, but only
> the first "-a" file was appended.

We should start thinking about nested VMs. What happens if we have a host,
a guest-host and a guest? That is, the guest is a VM on top of the
guest-host, which is a VM on top of the host.

And there could be a guest on top of that guest as well!

-- Steve



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