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From:	Hans-Bernhard Broeker <broeker AT physik DOT rwth-aachen DOT de>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: error under DOS , symify output
Date:	29 Feb 2004 12:51:26 GMT
Organization:	Aachen University of Technology (RWTH)
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Sterten <sterten AT aol DOT com> wrote:

> I get this error when booting DOS from floppy  (DOS from Win98)

> C:\PANCAKE>a:sprc kkk

First off: just because you booted DOS off a floppy doesn't mean you
have to run the program from a floppy, too.  Keep it on the harddisk
for simplicity.

> Exiting due to signal SIGSEGV
> Page fault at eip=0000171c, error=0004

You probably accessed a null pointer.

> App stack: [000a07d4..000207d4]  Exceptn stack: [00020730..0001e7f0]

That app stack is at exacly 512 KiBytes.  Make sure you're not
over-using the stack.

> Call frame traceback EIPs:
>   0x0000171c _main+60
>   0x000038c8 ___crt1_startup+176

> C:\PANCAKE>symify sprc.exe

Use bfdsymify instead, or compile with -gcoff instead of -g, to get
more meaningful output.  Or, better yet, run your app in a debugger,
so you can inspect variable contents, too, not just the stack.

[Your source was just too unbearably ugly, so I didn't bother looking
into it...]

-- 
Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de)
Even if all the snow were burnt, ashes would remain.

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