George Dunlap worked with the Xen project while a graduate student at
the University of Michigan before receiving his PhD in 2006. He is
currently working as Staff Software Engineer for Citrix on the
open-source Xen team in Cambridge, England. He has done work in many
areas of Xen, including performance analysis, scheduling, and memory
management. He is a committer and maintianer for the scheduling and
mm subsystems in Xen, and also serves on the Xen security team. He
writes technical articles regularly for the xenproject.org blog,
including one describing in detail the Intel SYSRET vulnerability, and
has had articles published in Linux.com.