On Friday 20 June 2008 04:35:01 Rafal Boni wrote:
 
 >  This just occurred to me after having filed this in the "I don't
 > have time to think about it right now" bin.  The issue here is that
 > the pmap code is using the last-active-lwp as a proxy for
 > last-active-pmap.  What we should do is just save the pmap pointed to
 > by the last-active-lwp vs. the lwp itself.
 
 While that may solve the problem, it may well work against the intention 
 of "last-active-pmap", which is to reduce the impact of 
 context-switching between user-mode processes/lwps.
 
 A simple fix would be to add the following to pmap_deactivate():