kmem_map too small: 3832475648 total allocated

[Artem Belevich]

Do you have vm.kmem_size set in /boot/loader.conf?

If not, do set it to about double of your physical RAM size. Defaults
are way too conservative for use with large amounts of memory and ZFS.

--Artem



On Wed, Apr 28, 2010 at 8:07 PM, James R. Van Artsdalen
<james-freebsd-current at jrv.org> wrote:
> 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
>
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