Hi, shouldn't uvm_pagefree() always be called with pageq locked ? in x86/x86/pmap.c there are some calls to uvm_pagefree() without obvious call to uvm_lock_pageq()/uvm_unlock_pageq() ... -- Manuel Bouyer <bouyer@antioche.eu.org> NetBSD: 26 ans d'experience feront toujours la difference --