On 23/02/21 18:15, Sean Christopherson wrote:
If event creation fails in that flow, I would think KVM would do its best to create an event in future runs without waiting for additional actions from the guest. Also, this bug suggests there's a big gaping hole in the test coverage. AFAICT, event contention would lead to a #GP crash in the host due to lbr_desc->event being dereferenced, no?
Yes, testing contention would use the tools/testing/selftests/kvm framework rather than just kvm-unit-tests.
Paolo
