NetBSD master CVS tree commits

[source%NetBSD.ORG@localhost]

mrg
Tue Sep 17 19:04:52 PDT 1996
Update of /cvsroot/src/sys/vm
In directory netbsd1:/var/slash-tmp/cvs-serv29656

Modified Files:
        vm_pageout.c 
Log Message:
make pageout sleep on vm_pages_needed rather than lbolt.  this stops
pathological behaviour (freezes) when running short of free pages.  see
PR#2755 for a more detailed explanation (from jonathan).

thanks to john dyson for the first cut of this change.