In article <1115504031.950.7.camel@dagobah.vindaloo.com> you wrote:
> stable NetBSD 2.x.x box running on this hardware. It has an uptime of
> about 2 days before I must reboot it because it constantly throws
> sbrk ... error 12 at me. I've attempted to get it stable enough to build

error 12 is ENOMEM, "Cannot allocate memory" (see 
/usr/include/sys/errno.h). It may help to know what exactly is running out 
of memory here, but maybe start monitoring swap & ram usage, same for 
in-kernel maps/tables.


 - Hubert