Date: Wed, 5 May 1999 19:14:46 +0300 (IDT)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
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To: GiovanniB <s206756 AT studenti DOT ing DOT unipi DOT it>
cc: djgpp AT delorie DOT com
Subject: Re: Unknown error !
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On Wed, 5 May 1999, GiovanniB wrote:

>    When my simple program shut down there's a strange "general protection
> fault" and a series of strange numbers.

The FAQ explains in sections 9.2 and 12.2 how to interpret these strange 
numbers, and how to debug your program using this information.

> What's appened ? FSDB tell me that
> program crashes on _strchr() function, but i don't know this function !

It's a library function.  You are probably passing a NULL pointer to it, 
or a pointer to a string that isn't terminated by a '\0' character.