I just tried reducing my sun3 from 24MB to 8MB and I don't see this
problem either way.  my config is:


include "arch/sun3/conf/GENERIC"
options         DDB_HISTORY_SIZE=500    # enable history editing in DDB
options         DEBUG           # kernel debugging code
options         DIAGNOSTIC      # extra kernel sanity checking
options         KMEMSTATS       # kernel memory statistics (vmstat -m)
options UVMHIST
options UVM_PAGE_TRKOWN



it's probably ok to reduce PAGER_MAP_SIZE back to 4MB, but I'm curious
why you're having this problem and I'm not.

-Chuck


On Mon, Feb 19, 2001 at 09:14:45AM +0100, Manuel Bouyer wrote:
> On Sun, Feb 18, 2001 at 11:10:25AM +0900, Izumi Tsutsui wrote:
> > In <20010217203144.A756@antioche.eu.org>
> > bouyer@antioche.lip6.fr wrote:
> > 
> > > I can't boot a -current kernel on my sun3/60; it fails with:
> > > panic: ubc_init: failed to map ubc_object
> > 
> > It looks VM space shortage. I got the same panic on arm32.
> > Maybe you have to reduce PAGER_MAP_SIZE.
> > (sun3 has smaller vm space than sun3x.)
> 
> Yes, that's it. I reduced PAGER_MAP_SIZE from 16 to 8MB and now it boots.
> 
> Hum, will be hard to solve in a clean way, isn't it ?
> 
> --
> Manuel Bouyer, LIP6, Universite Paris VI.           Manuel.Bouyer@lip6.fr
> --