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Date: Fri, 27 Jun 1997 09:46:58 -0400 (EDT)
From: Ken Wong <wongk@datadesign.com>
To: Philip Inglesant <philip@dircon.net>
cc: freebsd-questions@FreeBSD.ORG
Subject: Re: Kernel build, memory problems
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sounds like you have h/w memory error. or delay access time for
the memory is incorrect in your bios setup.

good luck,
Ken

On Fri, 27 Jun 1997, Philip Inglesant wrote:

> Date: Fri, 27 Jun 1997 13:29:01 +0100 (BST)
> From: Philip Inglesant <philip@dircon.net>
> To: freebsd-questions@FreeBSD.ORG
> Subject: Kernel build, memory problems
> 
> 
> I am running FreeBSD on a Pentium 200 with 128MB ram.
> 
> I have set "option MEMSIZE=131027" in the kernel config file. Of course, 
> for this first kernel re-build, i had to have the machine running with 
> only 64MB ram installed. Then i rebooted on the new kernel, and it saw 
> the memory no problem:
> 
> on bootup, console and /var/log/messages entries:
> 
> Jun 27 12:20:02 www-cache2 /kernel: real memory  = 134217728 (131072K bytes)
> Jun 27 12:20:02 www-cache2 /kernel: avail memory = 128126976 (125124K bytes)
> ...
> 
> But now, with the 128 MB in place and running on the new kernel, i'd like 
> to re-build the kernel again. I find that i can (usually) do the config 
> and make depend without problems, but when doing the make, it always 
> falls over somewhere with a core dump, usually signal 11, Segmentation fault.
> 
> I have been able to do the make if it do it in stages, ie. if as soon as 
> it crashes, i just type "make" again and off it goes... after two or 
> three stages, i finally builds a bootable kernel.
> 
> I am concerened, not just about why this is happening, but to know 
> whether this is likely to be a sign of instability in applications i run 
> on the machine. I want it to run as far as possible unattended as web 
> cache, so it needs a lot of ram and it needs to be reliable.
> 
> Philip Inglesant
> Direct Connection
>