Re: UVM patch for PR port-xen/45975

[Chuck Silvers <chuq%chuq.com@localhost>]

On Sat, Feb 18, 2012 at 07:01:24PM +0100, Manuel Bouyer wrote:
> >  - the calls to pmap_update() should be moved along with the calls to
> >    pmap_kremove().
> 
> But not all pmap_kremove() are followed by a pmap_update() in the initial 
> code.
> Is it a bug ?

yes.  we don't currently defer TLB invalidations from pmap_kremove() on x86
(or probably any platform), but if we start doing that then the pmap_update()s
are needed.

-Chuck