From owner-freebsd-emulation  Fri May 30 21:09:49 1997
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To: freebsd-emulation@freebsd.org
Subject: Linux emulation requires HW FPU?
From: dkelly@HiWAAY.net
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Date: Fri, 30 May 1997 23:09:16 -0500
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I've been putting around with Linux emulation on my FreeBSD system of 
recent vintage:

nexgen: {373} uname -a
FreeBSD nexgen.hiwaay.net 2.2-STABLE FreeBSD 2.2-STABLE #0: Sun May 11 
17:28:30 CDT 1997     dkelly@nexgen.hiwaay.net:/usr/src/sys/compile/NEXGEN  
i386

nexgen: {374} modstat
Type     Id Off Loadaddr Size Info     Rev Module Name
MISC      0   0 f48ee000 0008 f48ef000   1 blank_saver_mod
EXEC      1   4 f490d000 001c f4913010   1 linux_mod

Ok, linux_mod is loaded.

nexgen: {375} Wingz
Bus error (core dumped)

nexgen: {376} grep -i linux /usr/src/sys/i386/conf/NEXGEN
options         COMPAT_LINUX            #some say you need both.
options         LINUX_COMPAT            #some say you need both.

Have tried it with and without each of the above.

nexgen: {377} scalc3
User Install required before scalc3 can be run, please wait...
Segmentation fault - core dumped
Can't find initialisation script /home/dkelly/.sd.sh, User Install must be
completed before scalc3 can be run.

Wondering if my lack of FPU is a problem?

nexgen: {378} grep -i math  /usr/src/sys/i386/conf/NEXGEN
options MATH_EMULATE            #Support for x87 emulation
#options                GPL_MATH_EMULATE

Tried GPL_MATH_EMULATE once but cvsup started core dumping. So I went back 
to the standard FreeBSD software FPU.

So, does Linux emulation require a hardware FPU?

--
David Kelly N4HHE, dkelly@hiwaay.net
=====================================================================
The human mind ordinarily operates at only ten percent of its
capacity -- the rest is overhead for the operating system.