Date: Fri, 10 Mar 1995 13:09:03 +0800
From: pattabhi AT la DOT tce DOT com (Pattabhi Attaluri)
To: djgpp AT sun DOT soe DOT clarkson DOT edu
Subject: Segmentation Violation...


I have a program compiled with djgpp 1.12m4, using gcc-2.6.0.
When I run my program in a DOS box under Windows it works, 
but under plain DOS it crashes. 

Another strange behaviour is that it works under plain DOS if I run it
from my local disk instead of network.

Does anybody know what could be the problem ?

The program always crashes at the same place, in __doprnt, but the
fprintf calling it seems correct. My feeling is that somehow some
memory gets corrupted (?). One thing which is worth mentioning is that
my program spawns another program, and the crash occurs just after the
spawn.

The following shows more info.

Regards,

Pattabhi.

The output of go32 command without any parameters is:

n:\djgpp\src\gcc-260\ocode\djgpp>go32
go32 version 1.12.maint3 Copyright (C) 1994 DJ Delorie
Lowest version I can run is 1.08
go32.exe usage: go32 [-d {debugger}] [{program} [{options} . . . ]]
go32.exe build time was Sun Dec 18 16:36:42 1994
VCPI (Expanded) memory available: 14992 Kb
Swap space available: 72400 Kb


The entries in my config.sys file are:

DEVICE=C:\DOS\HIMEM.SYS
DEVICE=C:\DOS\EMM386.EXE RAM FRAME=NONE
BUFFERS=80,0
FILES=150
DOS=UMB
LASTDRIVE=Z
FCBS=16,8
DEVICEHIGH /L:1,12048 =C:\DOS\SETVER.EXE
DOS=HIGH
STACKS=9,256
shell=c:\dos\command.com c:\dos\ /E:16384 /P
DEVICEHIGH /L:1,74304 =C:\NFS\PCNFS.SYS /F120
DEVICEHIGH /L:2,1408 =C:\NFS\SOCKDRV.SYS
DEVICE=C:\LANMAN\PROTMAN.SYS /I:C:\LANMAN
DEVICEHIGH /L:1,7568 =C:\LANMAN\NFS-NDIS.SYS
DEVICEHIGH /L:1,15312 =C:\LANMAN\ELNK3.DOS

I defined the following environment variables:

TEMP=C:\tmp
TMPDIR=c:\tmp
TMP=C:\tmp\
DJGPP=n:/djgpp/djgpp.env
GO32TMP=c:\tmp
PATH=n:\djgpp\bin;C:\GNU;C:\UTIL;C:\NFS;C:\WINDOWS;C:\DOS;
GO32=topline