kmem_map too small: 3832475648 total allocated

[James R. Van Artsdalen]

FreeBSD bigback.housenet.jrv 9.0-CURRENT FreeBSD 9.0-CURRENT #1 r206111:
Mon Apr 26 01:13:00 CDT 2010    
root at bigback.housenet.jrv:/usr/obj/usr/src/sys/GENERIC  amd64

svn 206111 is April 2

system is a Core i7 975 (3.33 GHz x 4 cores 3x threads per core) with 12
GB of RAM, a 2x2TB ZFS boot pool and a second (idle) pool of 16x2TB.

The system was running this in the clang build area:

while true
do
  make -j7 buildworld
done

The panic happened during the 27th iteration.

panic: kmem_malloc(131072): kmem_map too small: 3832475648 total allocated