autotest/tp-qemu — pull request #86 by CongSmile (2014-04-25 09:22:22+00:00)
Title: pxe_query_cpus: small fix of pxe_query_cpus

1. judge whether the bg thread is alive in every cpu info query.

2. add join() bg thread in the body.

3. set 'kill_vm_gracefully = no' in the cfg.

Signed-off-by: Cong Li