hi,

this was a known problem in 1.5.  to have more than 512 MB or so
you need to limit the number of bufs.  rebuild a kernel with
'options NBUF=1000" or so.

but you'd be a lot happier if you upgraded to 1.6.1.

-Chuck


On Thu, Sep 25, 2003 at 08:18:20PM -0700, Derek Peschel wrote:
> I have a 256M DIMM installed.  I just added a 512M DIMM.  Just after boot,
> when the kernel prints the size of memory but before it prints the size
> of buffers, I get a panic, which I believe is:
> 
> uvm_km_suballoc: unable to allocate space in parent map
> 
> Can I do anything about that?  I tried increasing BUFPAGES to 3072 with
> no benefit.  I can provide a backtrace etc. but I will have to write every-
> thing down by hand.
> 
> Meanwhile I will try just the 512M DIMM and see what happens.
> 
> Thanks,
> 
> -- Derek