On Fri, 30 Jul 1999 08:58:17 +0200 (MEST) Zdenek Salvet <salvet@ics.muni.cz> wrote: > Could you give some typical example of this situation? Sure: (1) pmap structures (when kernel pmap is locked, interrupts must be blocked) (2) VM objects (when kmem_object or mb_object are locked, interrupts must be blocked) -- Jason R. Thorpe <thorpej@nas.nasa.gov>