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Date: Wed, 20 Aug 2003 11:13:47 -0700
From: Mike Hunter <mhunter@ack.Berkeley.EDU>
To: freebsd-questions@freebsd.org
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Subject: Can't build kernel with 4GB of memory (MAXDSIZE)
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Greetings,

I can't seem to get a new kernel working with increased memory parameters:

I tried adding the following to my KERNCONF:

options         MAXDSIZ="(4096UL*1024*1024)"
options         DFLDSIZ="(2048UL*1024*1024)"

On 5-current (as of about 6 months ago) this produced an ungraceful
init.conf bomb-out.

I tried again yesterday with a 4.8 box 

uname -a
FreeBSD mynewserver.net.berkeley.edu 4.8-RELEASE-p3 FreeBSD
4.8-RELEASE-p3 #1: Tue Aug 19 14:24:09 GMT 2003
root@mynewserver.net.berkeley.edu:/usr/obj/usr/src/sys/raeu  i386

(cvsup'd some time after August 11)

It gave me a similar but slightly more graceful bomb-out "I'm not going 
anywhere without my init!\n\nRebooting in 15 seconds....")

So, I think I'm missing something here :)  The machine in question has 4GB
of ram, and I'd like to be able to use all of it for some nasty
number-crunching I'm trying to do.  Any suggestions?

Please cc me as I am not on the list.

Thanks,

Mike Hunter