On Aug 30, 2007, at 5:29 AM, Jeremy C. Reed wrote:

> And OpenBSD does:
>
>                if (do_free) {
> -                       if (bp->page)
> +                       if (bp->page) {
> +                               (void)memset(bp->page, 0, hashp- 
> >BSIZE);
>                                free(bp->page);
> +                       }
>
> But I don't understand value of that.

I seem to remember that, many years ago, they decided it was a good  
idea to memset any pages used by a db before freeing them back to the  
OS because they could contain sensitive data.


(Of course, the same could be said of any page of any process, so  
NetBSD never picked up that change since it has no actual value.)

-- thorpej