6.2 -> 7.0 now mlock(2) fails

[Giorgos Keramidas]

On Sat, 12 Apr 2008 23:55:49 +0200, Mel <fbsd.questions at rachie.is-a-geek.net> wrote:
> As for the sysctl, I'm pretty sure it's a loader tunable, like the
> more known kern.maxdsiz.

It is.  The pageout daemon initializes max_wired with:

        /* XXX does not really belong here */
        if (vm_page_max_wired == 0)
                vm_page_max_wired = cnt.v_free_count / 3;

If it's already initialized when the pageout daemon runs, it won't
change its value.  Before tweaking it, it would be nice to know more
details though :)