On Fri, 16 Apr 2021 12:18:11 +0200 Stefano De Venuto <stefano.devenuto99@xxxxxxxxx> wrote: > Is there something that I'm missing? What can be the cause of this > mismatch since it only happens at the beginning of the trace? We tell the guest to start tracing, and then tell the host to start. This means that there are going to be missing events on the host when the host starts tracing. That is, tell guest to start: guest starts: guest has events guest switches to host: <kvm_exit, but not traced> host starts tracing: Now we have guest events followed by host events but no kvm_exit, because it was missed. Perhaps for guest tracing it would be wise to start the host before the guest :-/ -- Steve
|