cvs commit: src/sys/i386/i386 pmap.c

Alan Cox alc at
Sat Apr 29 18:36:11 UTC 2006

Kris Kennaway wrote:
> On Sat, Apr 29, 2006 at 10:21:11AM -0700, Peter Wemm wrote:
>> page of address space by unlinking the head of the ptelist.  Freeing a 
>> page is as simple as storing it on the head.  I'm running my laptop 
>> with that code right now.
> I'm running on a couple of machines too (WITNESS + INVARIANTS) under
> heavy load; they've been stable, but I've not tried to determine if
> the code is doing its job.
Yesterday's patch had one problem.  The vm_page_alloc() call that is 
only executed under low-memory conditions omits VM_PAGE_WIRED.  This 
could cause a later panic when the page is freed.  I e-mailed Peter 
about this yesterday.  I haven't looked to see if he has fixed it yet.


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