In message <199911010541.VAA14690@peak.org>Luke Miller writes
>
>Looking in /usr/include/machine/param.h I see:
>
>#define NKMEMCLUSTERS   (6 * 1024 * 1024 / CLBYTES)
>
>Doing the math there, 6 * 1024 * 1024 I get 6291456, unless I am missing
>something here.  What would be a good value to set NKMEMCLUSTERS to?

If you have enough memory, duble it until the problem goes away.
1.3.0 is so old, it may have NKPDE limits --I honestly forget.  it's
worth xearching the port-i386 archives for NKPDE, just to make sure
that bumping the kernel VM map for kernel-malloc doest't exhaustyour
kernel VM resources.

upgrading to 1.4.1 or the 1.4.x -release branch is definitely a good
idea. 1.3 - even 1.3.3 - is, uh, how old?