Mail Archives: djgpp/1994/06/22/14:00:42
I want to test if djgpp can malloc 128+ meg of space but I get
the following error message when I malloc 24 megs :
General Protection Fault at eip=1256
Call frame traceback EIPs:
0x00001256
When I malloc more than 24 megs my pc reboots.
I have included code my the test program, my autoexec.bat,
and the makefile. My pc has a STB Horizon Vesa video card, 8 megs of
memory, 106 meg of free disk space, a 3 com 16bit etherlink III card
using PCI networking software. I tried running the program without PCI
loaded and had the same problem.
The problem I can see is that I don't have a driver for the STB card. Is this
the problem or did I miss something in the documentation ?
thanks,
chris lafleur
my_malloc.c code
*********************
size_int=atoi(argv[1]);
meg_size=1024*1024;
size_of_malloc=(size_int * meg_size);
printf ("Size to malloc %d\n", size_int);
ptr_buffera=malloc(size_of_malloc);
ptr_bufferb=malloc(size_of_malloc);
for (i;i<size_of_malloc;i++)
{
ptr_buffera[i]='1';
ptr_bufferb[i]='1';
if ((i % meg_size) == 0)
printf ("%d\n",i);
}
autoexec.bat entries
**********
rem These variable are for the djgpp compiler
set COMPILER_PATH=c:/gcc/bin
set C_INCLUDE_PATH=c:/gcc/include
set OBJC_INCLUDE_PATH=c:/gcc/include
set LIBRARY_PATH=c:/gcc/lib
set TMPDIR=c:/tmp
set GO32TMP=c:/tmp
rem ^^^ this is where your paging file goes - if not set, the
rem variables TMP and TEMP are checked in that order
set GO32=ansi driver c:/gcc/drivers/trident.grd gw 1024 gh 768
rem ^^^ whatever driver works with your VGA (optional)
makefile
***********
malloc: malloc.c
gcc -c -O malloc.c
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