misc/153243: Seg fault whne running COFF binary using iBCS2 in 8.1

[Michael Green]

>Number:         153243
>Category:       misc
>Synopsis:       Seg fault whne running COFF binary using iBCS2 in 8.1
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Dec 17 08:50:06 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Michael Green
>Release:        FreeBSD 8.1-RELEASE
>Organization:
The Park Row Dental Practice
>Environment:
parkrow4# uname -a
FreeBSD parkrow4.blank.blank 8.1-RELEASE FreeBSD 8.1-RELEASE #0: Mon Jul 19 02:55:53 UTC 2010     root at almeida.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386
>Description:
For years (since 4.2) I've used iBCS2 to run MS FoxPro Unix 2.6 without any problems. I am setting up a new machine and have installed 8.1.

I have iBCS2 load via klms:

parkrow4# kldstat
Id Refs Address    Size     Name
 1    8 0xc0400000 bb5504   kernel
 2    2 0xc0fb6000 cc94     ibcs2.ko
 3    1 0xc0fc3000 3028     ibcs2_coff.ko

When I run the binary I get a segmentation fault message.

parkrow4# file foxpro.pr
foxpro.pr: 80386 COFF executable

parkrow4# truss ./foxpro.pr
truss: execution type IBCS2 COFF is not supported -- using FreeBSD a.out: Unknown error: 0
SIGNAL 11 (SIGSEGV)
>How-To-Repeat:
See notes above. As a precaution I have done a complete reinstall after checking the SHA256. I also uses Memtest86+ to do a hardware test.

There are some other similar reports. http://forums.freebsd.org/showthread.php?t=19764 
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: